Added support for model skinning

src/Common/Assert.h

@@ -1,6 +1,7 @@
 #ifndef ASSERT_H
 #define ASSERT_H
 
+#include "Log.h"
 #include "TString.h"
 #include <cstdlib>
 #include <string.h>

src/Common/CColor.cpp

@@ -47,7 +47,7 @@ void CColor::SetIntegral(u8 _R, u8 _G, u8 _B, u8 _A /*= 255*/)
     A = _A / 255.f;
 }
 
-void CColor::Write(IOutputStream &rOutput, bool Integral /*= false*/)
+void CColor::Write(IOutputStream &rOutput, bool Integral /*= false*/) const
 {
     if (Integral)
     {

src/Common/CColor.h

@@ -16,7 +16,7 @@ public:
     CColor(float _R, float _G, float _B, float A = 1.f);
     void SetIntegral(u8 RGBA);
     void SetIntegral(u8 _R, u8 _G, u8 _B, u8 _A = 255);
-    void Write(IOutputStream& rOutput, bool Integral = false);
+    void Write(IOutputStream& rOutput, bool Integral = false) const;
 
     long ToLongRGBA() const;
     long ToLongARGB() const;

src/Common/Common.pro

@@ -68,7 +68,8 @@ HEADERS += \
     Flags.h \
     TString.h \
     types.h \
-    Log.h
+    Log.h \
+    Assert.h
 
 # Source Files
 SOURCES += \

src/Common/Flags.h

@@ -29,7 +29,9 @@ public:
     inline TFlags operator&(u32 Mask) const         { return TFlags(FlagEnum(mValue & Mask)); }
     inline TFlags operator&(FlagEnum Flag) const    { return TFlags(FlagEnum(mValue & Flag)); }
 
+    inline bool HasFlag(FlagEnum Flag) const    { return ((mValue & Flag) != 0); }
     inline bool HasAnyFlags(TFlags Flags) const { return ((mValue & Flags) != 0); }
+    inline bool HasAllFlags(TFlags Flags) const { return ((mValue & Flags) == Flags); }
 };
 #define DECLARE_FLAGS(Enum, FlagTypeName) typedef TFlags<Enum> FlagTypeName;
 

src/Common/Log.cpp

@@ -93,6 +93,13 @@ void Warning(const TString& rkMessage)
     gErrorLog.push_back(FullMessage);
 }
 
+void Fatal(const TString& rkMessage)
+{
+    TString FullMessage = "FATAL ERROR: " + rkMessage;
+    Write(FullMessage);
+    abort();
+}
+
 void FileWrite(const TString& rkFilename, const TString& rkMessage)
 {
     Write(rkFilename + " : " + rkMessage);

src/Common/Log.h

@@ -10,6 +10,7 @@ bool InitLog(const TString& rkFilename);
 void Write(const TString& rkMessage);
 void Error(const TString& rkMessage);
 void Warning(const TString& rkMessage);
+void Fatal(const TString& rkMessage);
 void FileWrite(const TString& rkFilename, const TString& rkMessage);
 void FileWrite(const TString& rkFilename, unsigned long Offset, const TString& rkMessage);
 void FileError(const TString& rkFilename, const TString& rkMessage);

src/Core/Core.pro

@@ -191,7 +191,9 @@ HEADERS += \
     Scene/CCharacterNode.h \
     Resource/CAnimation.h \
     Resource/Factory/CAnimationLoader.h \
-    Render/CBoneTransformData.h
+    Render/CBoneTransformData.h \
+    Resource/CSkin.h \
+    Resource/Factory/CSkinLoader.h
 
 # Source Files
 SOURCES += \
@@ -274,4 +276,6 @@ SOURCES += \
     Resource/Factory/CSkeletonLoader.cpp \
     Scene/CCharacterNode.cpp \
     Resource/CAnimation.cpp \
-    Resource/Factory/CAnimationLoader.cpp
+    Resource/Factory/CAnimationLoader.cpp \
+    Resource/Factory/CSkinLoader.cpp \
+    Resource/Model/EVertexAttribute.cpp

src/Core/OpenGL/CShader.cpp

@@ -157,6 +157,7 @@ bool CShader::LinkShaders()
     mVertexBlockIndex = GetUniformBlockIndex("VertexBlock");
     mPixelBlockIndex = GetUniformBlockIndex("PixelBlock");
     mLightBlockIndex = GetUniformBlockIndex("LightBlock");
+    mBoneTransformBlockIndex = GetUniformBlockIndex("BoneTransformBlock");
 
     mProgramExists = true;
     return true;
@@ -193,6 +194,7 @@ void CShader::SetCurrent()
         glUniformBlockBinding(mProgram, mVertexBlockIndex, CGraphics::VertexBlockBindingPoint());
         glUniformBlockBinding(mProgram, mPixelBlockIndex, CGraphics::PixelBlockBindingPoint());
         glUniformBlockBinding(mProgram, mLightBlockIndex, CGraphics::LightBlockBindingPoint());
+        glUniformBlockBinding(mProgram, mBoneTransformBlockIndex, CGraphics::BoneTransformBlockBindingPoint());
     }
 }
 

src/Core/OpenGL/CShader.h

@@ -17,6 +17,7 @@ class CShader
     GLuint mVertexBlockIndex;
     GLuint mPixelBlockIndex;
     GLuint mLightBlockIndex;
+    GLuint mBoneTransformBlockIndex;
 
     static CShader* spCurrentShader;
 

src/Core/OpenGL/CShaderGenerator.cpp

@@ -1,12 +1,13 @@
 #include "CShaderGenerator.h"
+#include <Common/Assert.h>
 #include <iostream>
 #include <fstream>
 #include <sstream>
 #include <GL/glew.h>
 
 const TString gkCoordSrc[] = {
-    "RawPosition.xyz",
+    "ModelSpacePos.xyz",
-    "RawNormal.xyz",
+    "ModelSpaceNormal.xyz",
     "0.0, 0.0, 0.0",
     "0.0, 0.0, 0.0",
     "RawTex0.xy, 1.0",
@@ -144,7 +145,7 @@ CShaderGenerator::~CShaderGenerator()
 {
 }
 
-bool CShaderGenerator::CreateVertexShader(const CMaterial& Mat)
+bool CShaderGenerator::CreateVertexShader(const CMaterial& rkMat)
 {
     std::stringstream ShaderCode;
 
@@ -153,8 +154,10 @@ bool CShaderGenerator::CreateVertexShader(const CMaterial& Mat)
 
     // Input
     ShaderCode << "// Input\n";
-    FVertexDescription VtxDesc = Mat.VtxDesc();
+    FVertexDescription VtxDesc = rkMat.VtxDesc();
-    if (VtxDesc & ePosition) ShaderCode << "layout(location = 0) in vec3 RawPosition;\n";
+    ASSERT(VtxDesc & ePosition);
+
+    ShaderCode                              << "layout(location = 0) in vec3 RawPosition;\n";
     if (VtxDesc & eNormal)      ShaderCode  << "layout(location = 1) in vec3 RawNormal;\n";
     if (VtxDesc & eColor0)      ShaderCode  << "layout(location = 2) in vec4 RawColor0;\n";
     if (VtxDesc & eColor1)      ShaderCode  << "layout(location = 3) in vec4 RawColor1;\n";
@@ -165,6 +168,9 @@ bool CShaderGenerator::CreateVertexShader(const CMaterial& Mat)
     if (VtxDesc & eTex4)        ShaderCode  << "layout(location = 8) in vec2 RawTex4;\n";
     if (VtxDesc & eTex5)        ShaderCode  << "layout(location = 9) in vec2 RawTex5;\n";
     if (VtxDesc & eTex6)        ShaderCode  << "layout(location = 10) in vec2 RawTex6;\n";
+    if (VtxDesc & eTex7)        ShaderCode  << "layout(location = 11) in vec2 RawTex7;\n";
+    if (VtxDesc & eBoneIndices) ShaderCode  << "layout(location = 12) in ivec4 BoneIndices;\n";
+    if (VtxDesc & eBoneWeights) ShaderCode  << "layout(location = 13) in vec4 BoneWeights;\n";
     ShaderCode << "\n";
 
     // Output
@@ -173,8 +179,8 @@ bool CShaderGenerator::CreateVertexShader(const CMaterial& Mat)
     if (VtxDesc & eColor0)  ShaderCode  << "out vec4 Color0;\n";
     if (VtxDesc & eColor1)  ShaderCode  << "out vec4 Color1;\n";
 
-    for (u32 iPass = 0; iPass < Mat.PassCount(); iPass++)
+    for (u32 iPass = 0; iPass < rkMat.PassCount(); iPass++)
-        if (Mat.Pass(iPass)->TexCoordSource() != 0xFF)
+        if (rkMat.Pass(iPass)->TexCoordSource() != 0xFF)
             ShaderCode << "out vec3 Tex" << iPass << ";\n";
 
     ShaderCode  << "out vec4 COLOR0A0;\n"
@@ -208,12 +214,24 @@ bool CShaderGenerator::CreateVertexShader(const CMaterial& Mat)
                 << "    vec4 DistAtten;\n"
                 << "    vec4 AngleAtten;\n"
                 << "};\n"
-               << "layout(std140) uniform LightBlock {\n"
+                << "\n"
+                << "layout(std140) uniform LightBlock\n"
+                << "{\n"
                 << "    GXLight Lights[8];\n"
                 << "};\n"
                 << "uniform int NumLights;\n"
                 << "\n";
 
+    if (rkMat.Options() & CMaterial::eSkinningEnabled)
+    {
+        ShaderCode  << "layout(std140) uniform BoneTransformBlock\n"
+                    << "{\n"
+                    << "    mat4 BoneTransforms[100];\n"
+                    << "    mat4 InverseBindTransforms[100];\n"
+                    << "};\n"
+                    << "\n";
+    }
+
     // Main
     ShaderCode  << "// Main\n"
                 << "void main()\n"
@@ -221,10 +239,55 @@ bool CShaderGenerator::CreateVertexShader(const CMaterial& Mat)
                 << "    mat4 MV = ModelMtx * ViewMtx;\n"
                 << "    mat4 MVP = MV * ProjMtx;\n";
 
-    if (VtxDesc & ePosition) ShaderCode << "    gl_Position = vec4(RawPosition, 1) * MVP;\n";
-    if (VtxDesc & eNormal)   ShaderCode << "    Normal = normalize(RawNormal.xyz * inverse(transpose(mat3(MV))));\n";
     if (VtxDesc & eColor0)   ShaderCode << "    Color0 = RawColor0;\n";
     if (VtxDesc & eColor1)   ShaderCode << "    Color1 = RawColor1;\n";
+    ShaderCode << "\n";
+
+    // Skinning
+    if (rkMat.Options() & CMaterial::eSkinningEnabled)
+    {
+        ShaderCode  << "    // Skinning\n"
+                    << "    vec3 ModelSpacePos = vec3(0,0,0);\n";
+
+        if (VtxDesc & eNormal)
+            ShaderCode  << "    vec3 ModelSpaceNormal = vec3(0,0,0);\n";
+
+        ShaderCode  << "    \n"
+                    << "    for (int iBone = 0; iBone < 4; iBone++)\n"
+                    << "    {\n"
+                    << "        int BoneIdx = BoneIndices[iBone];\n"
+                    << "        float Weight = BoneWeights[iBone];\n"
+                    << "        \n"
+                    << "        if (BoneIdx > 0)\n"
+                    << "        {\n"
+                    << "            mat4 BoneSpaceTransform = InverseBindTransforms[BoneIdx] * BoneTransforms[BoneIdx];\n"
+                    << "            ModelSpacePos += vec3(vec4(RawPosition, 1) * BoneSpaceTransform * Weight);\n";
+
+        if (VtxDesc & eNormal)
+            ShaderCode  << "            ModelSpaceNormal += RawNormal.xyz * inverse(transpose(mat3(BoneSpaceTransform))) * Weight;\n";
+
+        ShaderCode  << "        }\n"
+                    << "    }\n"
+                    << "    \n";
+
+        if (VtxDesc & eNormal)
+            ShaderCode  << "    ModelSpaceNormal = normalize(ModelSpaceNormal);\n"
+                        << "    \n";
+    }
+    else
+    {
+        ShaderCode  << "    vec3 ModelSpacePos = RawPosition;\n";
+
+        if (VtxDesc & eNormal)
+            ShaderCode  << "    vec3 ModelSpaceNormal = RawNormal.xyz;\n";
+
+        ShaderCode << "\n";
+    }
+
+    ShaderCode  << "    gl_Position = vec4(ModelSpacePos, 1) * MVP;\n";
+
+    if (VtxDesc & eNormal)
+        ShaderCode  << "    Normal = normalize(ModelSpaceNormal * inverse(transpose(mat3(MV))));\n";
 
     // Per-vertex lighting
     ShaderCode  << "\n"
@@ -232,10 +295,10 @@ bool CShaderGenerator::CreateVertexShader(const CMaterial& Mat)
 
     // This bit could do with some cleaning up
     // It took a lot of experimentation to get dynamic lights working and I never went back and cleaned it up after
-    if (Mat.IsLightingEnabled())
+    if (rkMat.IsLightingEnabled())
     {
         ShaderCode  << "    vec4 Illum = vec4(0.0);\n"
-                   << "    vec3 PositionMV = vec3(vec4(RawPosition, 1.0) * MV);\n"
+                    << "    vec3 PositionMV = vec3(vec4(ModelSpacePos, 1.0) * MV);\n"
                     << "    \n"
                     << "    for (int iLight = 0; iLight < NumLights; iLight++)\n"
                     << "    {\n"
@@ -268,11 +331,11 @@ bool CShaderGenerator::CreateVertexShader(const CMaterial& Mat)
     ShaderCode  << "    \n"
                 << "    // TexGen\n";
 
-    u32 PassCount = Mat.PassCount();
+    u32 PassCount = rkMat.PassCount();
 
     for (u32 iPass = 0; iPass < PassCount; iPass++)
     {
-        CMaterialPass *pPass = Mat.Pass(iPass);
+        CMaterialPass *pPass = rkMat.Pass(iPass);
         if (pPass->TexCoordSource() == 0xFF) continue;
 
         EUVAnimMode AnimMode = pPass->AnimMode();
@@ -288,8 +351,8 @@ bool CShaderGenerator::CreateVertexShader(const CMaterial& Mat)
             if ((AnimMode < 2) || (AnimMode > 5))
             {
                 // Normalization + Post-Transform
-                ShaderCode << "    Tex" << iPass << " = normalize(Tex" << iPass << ");\n";
+                ShaderCode  << "    Tex" << iPass << " = normalize(Tex" << iPass << ");\n"
-                ShaderCode << "    Tex" << iPass << " = vec3(vec4(Tex" << iPass << ", 1.0) * PostMtx[" << iPass << "]).xyz;\n";
+                            << "    Tex" << iPass << " = vec3(vec4(Tex" << iPass << ", 1.0) * PostMtx[" << iPass << "]).xyz;\n";
             }
         }
 
@@ -302,22 +365,22 @@ bool CShaderGenerator::CreateVertexShader(const CMaterial& Mat)
     return mpShader->CompileVertexSource(ShaderCode.str().c_str());
 }
 
-bool CShaderGenerator::CreatePixelShader(const CMaterial& Mat)
+bool CShaderGenerator::CreatePixelShader(const CMaterial& rkMat)
 {
     std::stringstream ShaderCode;
     ShaderCode << "#version 330 core\n"
                << "\n";
 
-    FVertexDescription VtxDesc = Mat.VtxDesc();
+    FVertexDescription VtxDesc = rkMat.VtxDesc();
     if (VtxDesc & ePosition) ShaderCode << "in vec3 Position;\n";
     if (VtxDesc & eNormal)   ShaderCode << "in vec3 Normal;\n";
     if (VtxDesc & eColor0)   ShaderCode << "in vec4 Color0;\n";
     if (VtxDesc & eColor1)   ShaderCode << "in vec4 Color1;\n";
 
-    u32 PassCount = Mat.PassCount();
+    u32 PassCount = rkMat.PassCount();
 
     for (u32 iPass = 0; iPass < PassCount; iPass++)
-        if (Mat.Pass(iPass)->TexCoordSource() != 0xFF)
+        if (rkMat.Pass(iPass)->TexCoordSource() != 0xFF)
             ShaderCode << "in vec3 Tex" << iPass << ";\n";
 
     ShaderCode << "in vec4 COLOR0A0;\n"
@@ -333,7 +396,7 @@ bool CShaderGenerator::CreatePixelShader(const CMaterial& Mat)
                << "};\n\n";
 
     for (u32 iPass = 0; iPass < PassCount; iPass++)
-        if (Mat.Pass(iPass)->Texture() != nullptr)
+        if (rkMat.Pass(iPass)->Texture() != nullptr)
             ShaderCode << "uniform sampler2D Texture" << iPass << ";\n";
 
     ShaderCode <<"\n";
@@ -351,7 +414,7 @@ bool CShaderGenerator::CreatePixelShader(const CMaterial& Mat)
     bool Lightmap = false;
     for (u32 iPass = 0; iPass < PassCount; iPass++)
     {
-        const CMaterialPass *pPass = Mat.Pass(iPass);
+        const CMaterialPass *pPass = rkMat.Pass(iPass);
         CFourCC PassType = pPass->Type();
 
         ShaderCode << "    // TEV Stage " << iPass << " - " << PassType.ToString() << "\n";
@@ -377,7 +440,7 @@ bool CShaderGenerator::CreatePixelShader(const CMaterial& Mat)
 
         // Apply lightmap multiplier
         if ( (PassType == "DIFF") ||
-             (PassType == "CUST" && (Mat.Options() & CMaterial::eLightmap) && iPass == 0) )
+             (PassType == "CUST" && (rkMat.Options() & CMaterial::eLightmap) && iPass == 0) )
             ShaderCode << " * LightmapMultiplier";
 
         ShaderCode << ";\n";
@@ -415,9 +478,9 @@ bool CShaderGenerator::CreatePixelShader(const CMaterial& Mat)
         ShaderCode << "clamp(TevInD.a + ((1.0 - TevInC.a) * TevInA.a + TevInC.a * TevInB.a), 0.0, 1.0);\n\n";
     }
 
-    if (Mat.Options() & CMaterial::ePunchthrough)
+    if (rkMat.Options() & CMaterial::ePunchthrough)
     {
-        if (Mat.Version() < eCorruptionProto)
+        if (rkMat.Version() < eCorruptionProto)
         {
             ShaderCode << "    if (Prev.a <= 0.25) discard;\n"
                        << "    else Prev.a = 1.0;\n\n";

src/Core/OpenGL/CUniformBuffer.h

@@ -45,10 +45,17 @@ public:
         Unbind();
     }
 
-    void Buffer(void *pData)
+    void Buffer(const void *pkData)
     {
         Bind();
-        glBufferSubData(GL_UNIFORM_BUFFER, 0, mBufferSize, pData);
+        glBufferSubData(GL_UNIFORM_BUFFER, 0, mBufferSize, pkData);
+        Unbind();
+    }
+
+    void BufferRange(const void *pkData, u32 Offset, u32 Size)
+    {
+        Bind();
+        glBufferSubData(GL_UNIFORM_BUFFER, Offset, Size, pkData);
         Unbind();
     }
 

src/Core/OpenGL/CVertexBuffer.cpp

@@ -18,7 +18,7 @@ CVertexBuffer::~CVertexBuffer()
     CVertexArrayManager::DeleteAllArraysForVBO(this);
 
     if (mBuffered)
-        glDeleteBuffers(12, mAttribBuffers);
+        glDeleteBuffers(14, mAttribBuffers);
 }
 
 u16 CVertexBuffer::AddVertex(const CVertex& rkVtx)
@@ -31,11 +31,18 @@ u16 CVertexBuffer::AddVertex(const CVertex& rkVtx)
     if (mVtxDesc & eColor1)   mColors[1].push_back(rkVtx.Color[1]);
 
     for (u32 iTex = 0; iTex < 8; iTex++)
-        if (mVtxDesc & (eTex0 << (iTex * 2))) mTexCoords[iTex].push_back(rkVtx.Tex[iTex]);
+        if (mVtxDesc & (eTex0 << iTex)) mTexCoords[iTex].push_back(rkVtx.Tex[iTex]);
 
     for (u32 iMtx = 0; iMtx < 8; iMtx++)
         if (mVtxDesc & (ePosMtx << iMtx)) mTexCoords[iMtx].push_back(rkVtx.MatrixIndices[iMtx]);
 
+    if (mVtxDesc.HasAnyFlags(eBoneIndices | eBoneWeights) && mpSkin)
+    {
+        const SVertexWeights& rkWeights = mpSkin->WeightsForVertex(rkVtx.ArrayPosition);
+        if (mVtxDesc & eBoneIndices) mBoneIndices.push_back(rkWeights.Indices);
+        if (mVtxDesc & eBoneWeights) mBoneWeights.push_back(rkWeights.Weights);
+    }
+
     return (mPositions.size() - 1);
 }
 
@@ -51,24 +58,39 @@ u16 CVertexBuffer::AddIfUnique(const CVertex& rkVtx, u16 Start)
             if (mVtxDesc & ePosition)
                 if (rkVtx.Position != mPositions[iVert]) Unique = true;
 
-            if ((!Unique) && (mVtxDesc & eNormal))
+            if (!Unique && (mVtxDesc & eNormal))
                 if (rkVtx.Normal != mNormals[iVert]) Unique = true;
 
-            if ((!Unique) && (mVtxDesc & eColor0))
+            if (!Unique && (mVtxDesc & eColor0))
                 if (rkVtx.Color[0] != mColors[0][iVert]) Unique = true;
 
-            if ((!Unique) && (mVtxDesc & eColor1))
+            if (!Unique && (mVtxDesc & eColor1))
                 if (rkVtx.Color[1] != mColors[1][iVert]) Unique = true;
 
             if (!Unique)
                 for (u32 iTex = 0; iTex < 8; iTex++)
-                    if ((mVtxDesc & (eTex0 << (iTex * 2))))
+                    if ((mVtxDesc & (eTex0 << iTex)))
                         if (rkVtx.Tex[iTex] != mTexCoords[iTex][iVert])
                         {
                             Unique = true;
                             break;
                         }
 
+            if (!Unique && mpSkin && (mVtxDesc.HasAnyFlags(eBoneIndices | eBoneWeights)))
+            {
+                const SVertexWeights& rkWeights = mpSkin->WeightsForVertex(rkVtx.ArrayPosition);
+
+                for (u32 iWgt = 0; iWgt < 4; iWgt++)
+                {
+                    if ( ((mVtxDesc & eBoneIndices) && (rkWeights.Indices[iWgt] != mBoneIndices[iVert][iWgt])) ||
+                         ((mVtxDesc & eBoneWeights) && (rkWeights.Weights[iWgt] != mBoneWeights[iVert][iWgt])) )
+                    {
+                        Unique = true;
+                        break;
+                    }
+                }
+            }
+
             if (!Unique) return iVert;
         }
     }
@@ -93,14 +115,20 @@ void CVertexBuffer::Reserve(u16 Size)
         mColors[1].reserve(ReserveSize);
 
     for (u32 iTex = 0; iTex < 8; iTex++)
-        if (mVtxDesc & (eTex0 << (iTex * 2)))
+        if (mVtxDesc & (eTex0 << iTex))
             mTexCoords[iTex].reserve(ReserveSize);
+
+    if (mVtxDesc & eBoneIndices)
+        mBoneIndices.reserve(ReserveSize);
+
+    if (mVtxDesc & eBoneWeights)
+        mBoneWeights.reserve(ReserveSize);
 }
 
 void CVertexBuffer::Clear()
 {
     if (mBuffered)
-        glDeleteBuffers(12, mAttribBuffers);
+        glDeleteBuffers(14, mAttribBuffers);
 
     mBuffered = false;
     mPositions.clear();
@@ -110,6 +138,9 @@ void CVertexBuffer::Clear()
 
     for (u32 iTex = 0; iTex < 8; iTex++)
         mTexCoords[iTex].clear();
+
+    mBoneIndices.clear();
+    mBoneWeights.clear();
 }
 
 void CVertexBuffer::Buffer()
@@ -117,16 +148,16 @@ void CVertexBuffer::Buffer()
     // Make sure we don't end up with two buffers for the same data...
     if (mBuffered)
     {
-        glDeleteBuffers(12, mAttribBuffers);
+        glDeleteBuffers(14, mAttribBuffers);
         mBuffered = false;
     }
 
     // Generate buffers
-    glGenBuffers(12, mAttribBuffers);
+    glGenBuffers(14, mAttribBuffers);
 
-    for (u32 iAttrib = 0; iAttrib < 12; iAttrib++)
+    for (u32 iAttrib = 0; iAttrib < 14; iAttrib++)
     {
-        int Attrib = (ePosition << (iAttrib * 2));
+        int Attrib = (ePosition << iAttrib);
         bool HasAttrib = ((mVtxDesc & Attrib) != 0);
         if (!HasAttrib) continue;
 
@@ -146,13 +177,25 @@ void CVertexBuffer::Buffer()
             glBufferData(GL_ARRAY_BUFFER, mColors[Index].size() * sizeof(CColor), mColors[Index].data(), GL_STATIC_DRAW);
         }
 
-        else
+        else if (iAttrib < 12)
         {
             u8 Index = (u8) (iAttrib - 4);
 
             glBindBuffer(GL_ARRAY_BUFFER, mAttribBuffers[iAttrib]);
             glBufferData(GL_ARRAY_BUFFER, mTexCoords[Index].size() * sizeof(CVector2f), mTexCoords[Index].data(), GL_STATIC_DRAW);
         }
+
+        else if (iAttrib == 12)
+        {
+            glBindBuffer(GL_ARRAY_BUFFER, mAttribBuffers[iAttrib]);
+            glBufferData(GL_ARRAY_BUFFER, mBoneIndices.size() * sizeof(TBoneIndices), mBoneIndices.data(), GL_STATIC_DRAW);
+        }
+
+        else if (iAttrib == 13)
+        {
+            glBindBuffer(GL_ARRAY_BUFFER, mAttribBuffers[iAttrib]);
+            glBufferData(GL_ARRAY_BUFFER, mBoneWeights.size() * sizeof(TBoneWeights), mBoneWeights.data(), GL_STATIC_DRAW);
+        }
     }
 
     mBuffered = true;
@@ -185,6 +228,12 @@ void CVertexBuffer::SetVertexDesc(FVertexDescription Desc)
     mVtxDesc = Desc;
 }
 
+void CVertexBuffer::SetSkin(CSkin *pSkin)
+{
+    Clear();
+    mpSkin = pSkin;
+}
+
 u32 CVertexBuffer::Size()
 {
     return mPositions.size();
@@ -196,9 +245,9 @@ GLuint CVertexBuffer::CreateVAO()
     glGenVertexArrays(1, &VertexArray);
     glBindVertexArray(VertexArray);
 
-    for (u32 iAttrib = 0; iAttrib < 12; iAttrib++)
+    for (u32 iAttrib = 0; iAttrib < 14; iAttrib++)
     {
-        int Attrib = (ePosition << (iAttrib * 2));
+        int Attrib = (ePosition << iAttrib);
         bool HasAttrib = ((mVtxDesc & Attrib) != 0);
         if (!HasAttrib) continue;
 
@@ -216,12 +265,26 @@ GLuint CVertexBuffer::CreateVAO()
             glEnableVertexAttribArray(iAttrib);
         }
 
-        else
+        else if (iAttrib < 12)
         {
             glBindBuffer(GL_ARRAY_BUFFER, mAttribBuffers[iAttrib]);
             glVertexAttribPointer(iAttrib, 2, GL_FLOAT, GL_FALSE, sizeof(CVector2f), (void*) 0);
             glEnableVertexAttribArray(iAttrib);
         }
+
+        else if (iAttrib == 12)
+        {
+            glBindBuffer(GL_ARRAY_BUFFER, mAttribBuffers[iAttrib]);
+            glVertexAttribIPointer(iAttrib, 4, GL_UNSIGNED_INT, sizeof(TBoneIndices), (void*) 0);
+            glEnableVertexAttribArray(iAttrib);
+        }
+
+        else if (iAttrib == 13)
+        {
+            glBindBuffer(GL_ARRAY_BUFFER, mAttribBuffers[iAttrib]);
+            glVertexAttribPointer(iAttrib, 4, GL_FLOAT, GL_FALSE, sizeof(TBoneWeights), (void*) 0);
+            glEnableVertexAttribArray(iAttrib);
+        }
     }
 
     glBindVertexArray(0);

src/Core/OpenGL/CVertexBuffer.h

@@ -1,6 +1,8 @@
 #ifndef CVERTEXBUFFER_H
 #define CVERTEXBUFFER_H
 
+#include "Core/Resource/CSkin.h"
+#include "Core/Resource/TResPtr.h"
 #include "Core/Resource/Model/CVertex.h"
 #include "Core/Resource/Model/EVertexAttribute.h"
 #include <vector>
@@ -9,11 +11,14 @@
 class CVertexBuffer
 {
     FVertexDescription mVtxDesc;            // Flags that indicate what vertex attributes are enabled on this vertex buffer
-    GLuint mAttribBuffers[12];            // Separate GL buffer for each attribute to allow not tracking unused attribs. No support for matrix indices currently.
+    GLuint mAttribBuffers[14];              // Separate GL buffer for each attribute to allow not tracking unused attribs. No support for matrix indices currently.
+    TResPtr<CSkin> mpSkin;                  // Skin for skinned models. Null on unskinned models;
     std::vector<CVector3f> mPositions;      // Vector of vertex positions
     std::vector<CVector3f> mNormals;        // Vector of vertex normals
     std::vector<CColor> mColors[2];         // Vectors of vertex colors
     std::vector<CVector2f> mTexCoords[8];   // Vectors of texture coordinates
+    std::vector<TBoneIndices> mBoneIndices; // Vectors of bone indices
+    std::vector<TBoneWeights> mBoneWeights; // Vectors of bone weights
     bool mBuffered;                         // Bool value that indicates whether the attributes have been buffered.
 
 public:
@@ -30,6 +35,7 @@ public:
     bool IsBuffered();
     FVertexDescription VertexDesc();
     void SetVertexDesc(FVertexDescription Desc);
+    void SetSkin(CSkin *pSkin);
     u32 Size();
     GLuint CreateVAO();
 };

src/Core/Render/CBoneTransformData.h

@@ -16,7 +16,7 @@ public:
     inline void ResizeToSkeleton(CSkeleton *pSkel)              { mBoneMatrices.resize(pSkel ? pSkel->MaxBoneID() + 1 : 0); }
     inline CTransform4f& BoneMatrix(u32 BoneID)                 { return mBoneMatrices[BoneID]; }
     inline const CTransform4f& BoneMatrix(u32 BoneID) const     { return mBoneMatrices[BoneID]; }
-    inline void* Data()                                         { return mBoneMatrices.data(); }
+    inline const void* Data() const                             { return mBoneMatrices.data(); }
     inline u32 DataSize() const                                 { return mBoneMatrices.size() * sizeof(CTransform4f); }
     inline CTransform4f& operator[](u32 BoneIndex)              { return BoneMatrix(BoneIndex); }
     inline const CTransform4f& operator[](u32 BoneIndex) const  { return BoneMatrix(BoneIndex); }

src/Core/Render/CGraphics.cpp

@@ -8,10 +8,13 @@ CUniformBuffer* CGraphics::mpMVPBlockBuffer;
 CUniformBuffer* CGraphics::mpVertexBlockBuffer;
 CUniformBuffer* CGraphics::mpPixelBlockBuffer;
 CUniformBuffer* CGraphics::mpLightBlockBuffer;
+CUniformBuffer* CGraphics::mpBoneTransformBuffer;
 u32 CGraphics::mContextIndices = 0;
 u32 CGraphics::mActiveContext = -1;
 bool CGraphics::mInitialized = false;
 std::vector<CVertexArrayManager*> CGraphics::mVAMs;
+bool CGraphics::mIdentityBoneTransforms = false;
+const CSkeleton *CGraphics::mpkCurrentSkeleton = nullptr;
 
 CGraphics::SMVPBlock    CGraphics::sMVPBlock;
 CGraphics::SVertexBlock CGraphics::sVertexBlock;
@@ -44,6 +47,7 @@ void CGraphics::Initialize()
         mpVertexBlockBuffer = new CUniformBuffer(sizeof(sVertexBlock));
         mpPixelBlockBuffer = new CUniformBuffer(sizeof(sPixelBlock));
         mpLightBlockBuffer = new CUniformBuffer(sizeof(sLightBlock));
+        mpBoneTransformBuffer = new CUniformBuffer(sizeof(CTransform4f) * 200);
 
         sLightMode = eWorldLighting;
         sNumLights = 0;
@@ -55,6 +59,8 @@ void CGraphics::Initialize()
     mpVertexBlockBuffer->BindBase(1);
     mpPixelBlockBuffer->BindBase(2);
     mpLightBlockBuffer->BindBase(3);
+    mpBoneTransformBuffer->BindBase(4);
+    LoadIdentityBoneTransforms();
 }
 
 void CGraphics::Shutdown()
@@ -66,6 +72,7 @@ void CGraphics::Shutdown()
         delete mpVertexBlockBuffer;
         delete mpPixelBlockBuffer;
         delete mpLightBlockBuffer;
+        delete mpBoneTransformBuffer;
         mInitialized = false;
     }
 }
@@ -110,6 +117,11 @@ GLuint CGraphics::LightBlockBindingPoint()
     return 3;
 }
 
+GLuint CGraphics::BoneTransformBlockBindingPoint()
+{
+    return 4;
+}
+
 u32 CGraphics::GetContextIndex()
 {
     for (u32 iCon = 0; iCon < 32; iCon++)
@@ -178,3 +190,31 @@ void CGraphics::SetIdentityMVP()
     sMVPBlock.ViewMatrix = CMatrix4f::skIdentity;
     sMVPBlock.ProjectionMatrix = CMatrix4f::skIdentity;
 }
+
+void CGraphics::LoadBoneTransforms(const CBoneTransformData& rkData)
+{
+    mpBoneTransformBuffer->BufferRange(rkData.Data(), 0, rkData.DataSize());
+    mIdentityBoneTransforms = false;
+}
+
+void CGraphics::LoadBoneInverseBindTransforms(CSkeleton *pSkel)
+{
+    if (mpkCurrentSkeleton != pSkel)
+    {
+        mpBoneTransformBuffer->BufferRange(pSkel->InverseBindMatricesData(), sizeof(CTransform4f) * 100, pSkel->InverseBindMatricesSize());
+        mpkCurrentSkeleton = pSkel;
+        mIdentityBoneTransforms = false;
+    }
+}
+
+void CGraphics::LoadIdentityBoneTransforms()
+{
+    static CTransform4f IdentityTransforms[200];
+
+    if (!mIdentityBoneTransforms)
+    {
+        mpBoneTransformBuffer->Buffer(&IdentityTransforms);
+        mpkCurrentSkeleton = nullptr;
+        mIdentityBoneTransforms = true;
+    }
+}

src/Core/Render/CGraphics.h

@@ -1,6 +1,7 @@
 #ifndef CGRAPHICS_H
 #define CGRAPHICS_H
 
+#include "CBoneTransformData.h"
 #include "Core/OpenGL/CUniformBuffer.h"
 #include "Core/OpenGL/CVertexArrayManager.h"
 #include "Core/Resource/CLight.h"
@@ -23,11 +24,15 @@ class CGraphics
     static CUniformBuffer *mpVertexBlockBuffer;
     static CUniformBuffer *mpPixelBlockBuffer;
     static CUniformBuffer *mpLightBlockBuffer;
+    static CUniformBuffer *mpBoneTransformBuffer;
     static u32 mContextIndices;
     static u32 mActiveContext;
     static bool mInitialized;
     static std::vector<CVertexArrayManager*> mVAMs;
 
+    static bool mIdentityBoneTransforms;
+    static const CSkeleton *mpkCurrentSkeleton;
+
 public:
     // SMVPBlock
     struct SMVPBlock
@@ -95,6 +100,7 @@ public:
     static GLuint VertexBlockBindingPoint();
     static GLuint PixelBlockBindingPoint();
     static GLuint LightBlockBindingPoint();
+    static GLuint BoneTransformBlockBindingPoint();
     static u32 GetContextIndex();
     static u32 GetActiveContext();
     static void ReleaseContext(u32 Index);
@@ -102,6 +108,9 @@ public:
     static void SetDefaultLighting();
     static void SetupAmbientColor();
     static void SetIdentityMVP();
+    static void LoadBoneTransforms(const CBoneTransformData& rkData);
+    static void LoadBoneInverseBindTransforms(CSkeleton *pSkel);
+    static void LoadIdentityBoneTransforms();
 };
 
 #endif // CGRAPHICS_H

src/Core/Resource/CAnimSet.h

@@ -5,6 +5,7 @@
 #include "CAnimation.h"
 #include "CResource.h"
 #include "CSkeleton.h"
+#include "CSkin.h"
 #include "Core/Resource/Model/CModel.h"
 #include <Common/types.h>
 
@@ -20,7 +21,7 @@ class CAnimSet : public CResource
     {
         TString Name;
         TResPtr<CModel> pModel;
-        u32 SkinID;
+        TResPtr<CSkin> pSkin;
         TResPtr<CSkeleton> pSkeleton;
 
         SNode() { pModel = nullptr; }
@@ -40,6 +41,7 @@ public:
     u32 NumNodes() const                { return mNodes.size(); }
     TString NodeName(u32 Index)         { if (Index >= mNodes.size()) Index = 0; return mNodes[Index].Name; }
     CModel* NodeModel(u32 Index)        { if (Index >= mNodes.size()) Index = 0; return mNodes[Index].pModel; }
+    CSkin* NodeSkin(u32 Index)          { if (Index >= mNodes.size()) Index = 0; return mNodes[Index].pSkin; }
     CSkeleton* NodeSkeleton(u32 Index)  { if (Index >= mNodes.size()) Index = 0; return mNodes[Index].pSkeleton; }
 
     u32 NumAnims() const                { return mAnims.size(); }

src/Core/Resource/CMaterial.h

@@ -37,7 +37,8 @@ public:
         eLightmap               = 0x800,
         eShortTexCoord          = 0x2000,
         eAllMP1Settings         = 0x2FF8,
-        eDrawWhiteAmbientDKCR   = 0x80000
+        eDrawWhiteAmbientDKCR   = 0x80000,
+        eSkinningEnabled        = 0x80000000
     };
     DECLARE_FLAGS(EMaterialOption, FMaterialOptions)
 
@@ -100,12 +101,12 @@ public:
     inline CMaterialPass* Pass(u32 PassIndex) const    { return mPasses[PassIndex]; }
 
     inline void SetName(const TString& rkName)                 { mName = rkName; }
-    inline void SetOptions(FMaterialOptions Options)           { mOptions = Options; mRecalcHash = true; }
+    inline void SetOptions(FMaterialOptions Options)           { mOptions = Options; Update(); }
-    inline void SetVertexDescription(FVertexDescription Desc)  { mVtxDesc = Desc; mRecalcHash = true; }
+    inline void SetVertexDescription(FVertexDescription Desc)  { mVtxDesc = Desc; Update(); }
     inline void SetBlendMode(GLenum SrcFac, GLenum DstFac)     { mBlendSrcFac = SrcFac; mBlendDstFac = DstFac; mRecalcHash = true; }
-    inline void SetKonst(CColor& Konst, u32 KIndex)            { mKonstColors[KIndex] = Konst; mRecalcHash = true; }
+    inline void SetKonst(CColor& Konst, u32 KIndex)            { mKonstColors[KIndex] = Konst; Update(); }
     inline void SetIndTexture(CTexture *pTex)                  { mpIndirectTexture = pTex; }
-    inline void SetLightingEnabled(bool Enabled)               { mLightingEnabled = Enabled; mRecalcHash = true; }
+    inline void SetLightingEnabled(bool Enabled)               { mLightingEnabled = Enabled; Update(); }
 
     // Static
     inline static void KillCachedMaterial() { sCurrentMaterial = 0; }

src/Core/Resource/CResCache.cpp

@@ -8,6 +8,7 @@
 #include "Core/Resource/Factory/CPoiToWorldLoader.h"
 #include "Core/Resource/Factory/CScanLoader.h"
 #include "Core/Resource/Factory/CSkeletonLoader.h"
+#include "Core/Resource/Factory/CSkinLoader.h"
 #include "Core/Resource/Factory/CStringLoader.h"
 #include "Core/Resource/Factory/CTextureDecoder.h"
 #include "Core/Resource/Factory/CWorldLoader.h"
@@ -153,6 +154,7 @@ CResource* CResCache::GetResource(CUniqueID ResID, CFourCC Type)
     else if (Type == "EGMC") pRes = CPoiToWorldLoader::LoadEGMC(Mem);
     else if (Type == "CINF") pRes = CSkeletonLoader::LoadCINF(Mem);
     else if (Type == "ANIM") pRes = CAnimationLoader::LoadANIM(Mem);
+    else if (Type == "CSKR") pRes = CSkinLoader::LoadCSKR(Mem);
     else SupportedFormat = false;
 
     // Log errors
@@ -209,6 +211,7 @@ CResource* CResCache::GetResource(const TString& rkResPath)
     else if (Type == "EGMC") pRes = CPoiToWorldLoader::LoadEGMC(File);
     else if (Type == "CINF") pRes = CSkeletonLoader::LoadCINF(File);
     else if (Type == "ANIM") pRes = CAnimationLoader::LoadANIM(File);
+    else if (Type == "CSKR") pRes = CSkinLoader::LoadCSKR(File);
     else SupportedFormat = false;
 
     if (!pRes) pRes = new CResource(); // Default for unsupported formats

src/Core/Resource/CSkeleton.h

@@ -10,7 +10,34 @@
 #include <Math/CVector3f.h>
 
 class CBoneTransformData;
-class CSkeleton;
+class CBone;
+
+class CSkeleton : public CResource
+{
+    DECLARE_RESOURCE_TYPE(eSkeleton)
+    friend class CSkeletonLoader;
+
+    CBone *mpRootBone;
+    std::vector<CBone*> mBones;
+    std::vector<CTransform4f> mInvBindMatrices;
+
+    static const float skSphereRadius;
+
+public:
+    CSkeleton();
+    ~CSkeleton();
+    void UpdateTransform(CBoneTransformData& rData, CAnimation *pAnim, float Time, bool AnchorRoot);
+    CBone* BoneByID(u32 BoneID) const;
+    u32 MaxBoneID() const;
+
+    void Draw(FRenderOptions Options, const CBoneTransformData& rkData);
+    std::pair<s32,float> RayIntersect(const CRay& rkRay, const CBoneTransformData& rkData);
+
+    inline u32 NumBones() const                                         { return mBones.size(); }
+    inline const CTransform4f& BoneInverseBindMatrix(u32 BoneID) const  { return mInvBindMatrices[BoneID]; }
+    inline const void* InverseBindMatricesData() const                  { return mInvBindMatrices.data(); }
+    inline u32 InverseBindMatricesSize() const                          { return mInvBindMatrices.size() * sizeof(CTransform4f); }
+};
 
 class CBone
 {
@@ -35,30 +62,9 @@ public:
     inline CBone* ChildByIndex(u32 Index) const         { return mChildren[Index]; }
     inline u32 ID() const                               { return mID; }
     inline CVector3f Position() const                   { return mPosition; }
+    inline CVector3f AbsolutePosition() const           { return mPosition + (mpParent ? mpParent->AbsolutePosition() : CVector3f::skZero); }
     inline TString Name() const                         { return mName; }
-};
+    inline const CTransform4f& InverseBindMtx() const   { return mpSkeleton->BoneInverseBindMatrix(mID); }
-
-class CSkeleton : public CResource
-{
-    DECLARE_RESOURCE_TYPE(eSkeleton)
-    friend class CSkeletonLoader;
-
-    CBone *mpRootBone;
-    std::vector<CBone*> mBones;
-
-    static const float skSphereRadius;
-
-public:
-    CSkeleton();
-    ~CSkeleton();
-    void UpdateTransform(CBoneTransformData& rData, CAnimation *pAnim, float Time, bool AnchorRoot);
-    CBone* BoneByID(u32 BoneID) const;
-    u32 MaxBoneID() const;
-
-    void Draw(FRenderOptions Options, const CBoneTransformData& rkData);
-    std::pair<s32,float> RayIntersect(const CRay& rkRay, const CBoneTransformData& rkData);
-
-    inline u32 NumBones() const { return mBones.size(); }
 };
 
 #endif // CSKELETON_H

src/Core/Resource/CSkin.h

@@ -0,0 +1,51 @@
+#ifndef CSKIN_H
+#define CSKIN_H
+
+#include "CResource.h"
+#include "Core/Resource/Model/CVertex.h"
+
+struct SVertexWeights
+{
+    TBoneIndices Indices;
+    TBoneWeights Weights;
+};
+
+class CSkin : public CResource
+{
+    DECLARE_RESOURCE_TYPE(eSkin)
+    friend class CSkinLoader;
+
+    struct SVertGroup
+    {
+        SVertexWeights Weights;
+        u32 NumVertices;
+    };
+    std::vector<SVertGroup> mVertGroups;
+
+    u32 mSkinnedVertexCount;
+
+public:
+    CSkin() {}
+
+    const SVertexWeights& WeightsForVertex(u32 VertIdx)
+    {
+        static const SVertexWeights skNullWeights = {
+            { 0, 0, 0, 0 },
+            { 0.f, 0.f, 0.f, 0.f }
+        };
+
+        u32 Index = 0;
+
+        for (u32 iGrp = 0; iGrp < mVertGroups.size(); iGrp++)
+        {
+            if (VertIdx < Index + mVertGroups[iGrp].NumVertices)
+                return mVertGroups[iGrp].Weights;
+
+            Index += mVertGroups[iGrp].NumVertices;
+        }
+
+        return skNullWeights;
+    }
+};
+
+#endif // CSKIN_H

src/Core/Resource/Cooker/CMaterialCooker.cpp

@@ -6,6 +6,32 @@ CMaterialCooker::CMaterialCooker()
 {
 }
 
+u32 CMaterialCooker::ConvertFromVertexDescription(FVertexDescription VtxDesc)
+{
+    u32 Flags = 0;
+    if (VtxDesc & ePosition)    Flags |= 0x00000003;
+    if (VtxDesc & eNormal)      Flags |= 0x0000000C;
+    if (VtxDesc & eColor0)      Flags |= 0x00000030;
+    if (VtxDesc & eColor1)      Flags |= 0x000000C0;
+    if (VtxDesc & eTex0)        Flags |= 0x00000300;
+    if (VtxDesc & eTex1)        Flags |= 0x00000C00;
+    if (VtxDesc & eTex2)        Flags |= 0x00003000;
+    if (VtxDesc & eTex3)        Flags |= 0x0000C000;
+    if (VtxDesc & eTex4)        Flags |= 0x00030000;
+    if (VtxDesc & eTex5)        Flags |= 0x000C0000;
+    if (VtxDesc & eTex6)        Flags |= 0x00300000;
+    if (VtxDesc & eTex7)        Flags |= 0x00C00000;
+    if (VtxDesc & ePosMtx)      Flags |= 0x01000000;
+    if (VtxDesc & eTex0Mtx)     Flags |= 0x02000000;
+    if (VtxDesc & eTex1Mtx)     Flags |= 0x04000000;
+    if (VtxDesc & eTex2Mtx)     Flags |= 0x08000000;
+    if (VtxDesc & eTex3Mtx)     Flags |= 0x10000000;
+    if (VtxDesc & eTex4Mtx)     Flags |= 0x20000000;
+    if (VtxDesc & eTex5Mtx)     Flags |= 0x40000000;
+    if (VtxDesc & eTex6Mtx)     Flags |= 0x80000000;
+    return Flags;
+}
+
 void CMaterialCooker::WriteMatSetPrime(IOutputStream& rOut)
 {
     // Gather texture list from the materials before starting
@@ -150,12 +176,12 @@ void CMaterialCooker::WriteMaterialPrime(IOutputStream& rOut)
         rOut.WriteLong(TexIndices[iTex]);
 
     // Vertex description
-    FVertexDescription Desc = mpMat->VtxDesc();
+    u32 VtxFlags = ConvertFromVertexDescription( mpMat->VtxDesc() );
 
     if (mVersion < eEchoes)
-        Desc &= 0x00FFFFFF;
+        VtxFlags &= 0x00FFFFFF;
 
-    rOut.WriteLong(Desc);
+    rOut.WriteLong(VtxFlags);
 
     // Echoes unknowns
     if (mVersion == eEchoes)

src/Core/Resource/Cooker/CMaterialCooker.h

@@ -14,6 +14,7 @@ class CMaterialCooker
     std::vector<u64> mMaterialHashes;
 
     CMaterialCooker();
+    u32 ConvertFromVertexDescription(FVertexDescription VtxDesc);
     void WriteMatSetPrime(IOutputStream& rOut);
     void WriteMatSetCorruption(IOutputStream& rOut);
     void WriteMaterialPrime(IOutputStream& rOut);

src/Core/Resource/Cooker/CModelCooker.cpp

@@ -63,7 +63,7 @@ void CModelCooker::WriteModelPrime(IOutputStream& rOut)
     // Header
     rOut.WriteLong(0xDEADBABE);
     rOut.WriteLong(GetCMDLVersion(mVersion));
-    rOut.WriteLong(5);
+    rOut.WriteLong(mpModel->IsSkinned() ? 6 : 5);
     mpModel->mAABox.Write(rOut);
 
     u32 NumSections = mNumMatSets + mNumSurfaces + 6;
@@ -115,7 +115,7 @@ void CModelCooker::WriteModelPrime(IOutputStream& rOut)
     // Float UV coordinates
     for (u32 iTexSlot = 0; iTexSlot < 8; iTexSlot++)
     {
-        bool HasTexSlot = (mVtxAttribs & (eTex0 << (iTexSlot * 2))) != 0;
+        bool HasTexSlot = (mVtxAttribs & (eTex0 << iTexSlot)) != 0;
         if (HasTexSlot)
         {
             for (u32 iTex = 0; iTex < mNumVertices; iTex++)
@@ -156,7 +156,7 @@ void CModelCooker::WriteModelPrime(IOutputStream& rOut)
         rOut.WriteToBoundary(32, 0);
 
         u32 PrimTableStart = rOut.Tell();
-        FVertexDescription MatAttribs = mpModel->GetMaterialBySurface(0, iSurf)->VtxDesc();
+        FVertexDescription VtxAttribs = mpModel->GetMaterialBySurface(0, iSurf)->VtxDesc();
 
         for (u32 iPrim = 0; iPrim < pSurface->Primitives.size(); iPrim++)
         {
@@ -171,28 +171,28 @@ void CModelCooker::WriteModelPrime(IOutputStream& rOut)
                 if (mVersion == eEchoes)
                 {
                     for (u32 iMtxAttribs = 0; iMtxAttribs < 8; iMtxAttribs++)
-                        if (MatAttribs & (ePosMtx << iMtxAttribs))
+                        if (VtxAttribs & (ePosMtx << iMtxAttribs))
                             rOut.WriteByte(pVert->MatrixIndices[iMtxAttribs]);
                 }
 
                 u16 VertexIndex = (u16) pVert->ArrayPosition;
 
-                if (MatAttribs & ePosition)
+                if (VtxAttribs & ePosition)
                     rOut.WriteShort(VertexIndex);
 
-                if (MatAttribs & eNormal)
+                if (VtxAttribs & eNormal)
                     rOut.WriteShort(VertexIndex);
 
-                if (MatAttribs & eColor0)
+                if (VtxAttribs & eColor0)
                     rOut.WriteShort(VertexIndex);
 
-                if (MatAttribs & eColor1)
+                if (VtxAttribs & eColor1)
                     rOut.WriteShort(VertexIndex);
 
                 u16 TexOffset = 0;
                 for (u32 iTex = 0; iTex < 8; iTex++)
                 {
-                    if (MatAttribs & (eTex0 << (iTex * 2)))
+                    if (VtxAttribs & (eTex0 << iTex))
                     {
                         rOut.WriteShort(VertexIndex + TexOffset);
                         TexOffset += (u16) mNumVertices;

src/Core/Resource/Factory/CAnimSetLoader.cpp

@@ -220,12 +220,16 @@ CAnimSet* CAnimSetLoader::LoadANCS(IInputStream& rANCS)
         if (iNode == 0) Loader.mVersion = (Unknown1 == 0xA) ? eEchoes : ePrime; // Best version indicator we know of unfortunately
         pNode->Name = rANCS.ReadString();
         pNode->pModel = gResCache.GetResource(rANCS.ReadLong(), "CMDL");
-        pNode->SkinID = rANCS.ReadLong();
 
-        if (Loader.mVersion == ePrime)
+        if (Loader.mVersion <= ePrime)
+        {
+            pNode->pSkin = gResCache.GetResource(rANCS.ReadLong(), "CSKR");
             pNode->pSkeleton = gResCache.GetResource(rANCS.ReadLong(), "CINF");
+
+            pNode->pModel->SetSkin(pNode->pSkin);
+        }
         else
-            rANCS.Seek(0x4, SEEK_CUR);
+            rANCS.Seek(0x8, SEEK_CUR);
 
         // Unfortunately that's all that's actually supported at the moment. Hope to expand later.
         // Since there's no size value I have to actually read the rest of the node to reach the next one

src/Core/Resource/Factory/CMaterialLoader.cpp

@@ -15,6 +15,32 @@ CMaterialLoader::~CMaterialLoader()
 {
 }
 
+FVertexDescription CMaterialLoader::ConvertToVertexDescription(u32 VertexFlags)
+{
+    FVertexDescription Desc;
+    if (VertexFlags & 0x00000003) Desc |= ePosition;
+    if (VertexFlags & 0x0000000C) Desc |= eNormal;
+    if (VertexFlags & 0x00000030) Desc |= eColor0;
+    if (VertexFlags & 0x000000C0) Desc |= eColor1;
+    if (VertexFlags & 0x00000300) Desc |= eTex0;
+    if (VertexFlags & 0x00000C00) Desc |= eTex1;
+    if (VertexFlags & 0x00003000) Desc |= eTex2;
+    if (VertexFlags & 0x0000C000) Desc |= eTex3;
+    if (VertexFlags & 0x00030000) Desc |= eTex4;
+    if (VertexFlags & 0x000C0000) Desc |= eTex5;
+    if (VertexFlags & 0x00300000) Desc |= eTex6;
+    if (VertexFlags & 0x00C00000) Desc |= eTex7;
+    if (VertexFlags & 0x01000000) Desc |= ePosMtx;
+    if (VertexFlags & 0x02000000) Desc |= eTex0Mtx;
+    if (VertexFlags & 0x04000000) Desc |= eTex1Mtx;
+    if (VertexFlags & 0x08000000) Desc |= eTex2Mtx;
+    if (VertexFlags & 0x10000000) Desc |= eTex3Mtx;
+    if (VertexFlags & 0x20000000) Desc |= eTex4Mtx;
+    if (VertexFlags & 0x40000000) Desc |= eTex5Mtx;
+    if (VertexFlags & 0x80000000) Desc |= eTex6Mtx;
+    return Desc;
+}
+
 void CMaterialLoader::ReadPrimeMatSet()
 {
     // Textures
@@ -63,7 +89,7 @@ CMaterial* CMaterialLoader::ReadPrimeMaterial()
     }
 
     // Vertex description
-    pMat->mVtxDesc = (FVertexDescription) mpFile->ReadLong();
+    pMat->mVtxDesc = ConvertToVertexDescription( mpFile->ReadLong() );
 
     // Unknowns
     if (mVersion >= eEchoesDemo)
@@ -267,7 +293,7 @@ CMaterial* CMaterialLoader::ReadCorruptionMaterial()
     mHas0x400 = ((Flags & 0x400) != 0);
 
     mpFile->Seek(0x8, SEEK_CUR); // Don't know what any of this is
-    pMat->mVtxDesc = (FVertexDescription) mpFile->ReadLong();
+    pMat->mVtxDesc = ConvertToVertexDescription( mpFile->ReadLong() );
     mpFile->Seek(0xC, SEEK_CUR);
 
     // Initialize all KColors to white

src/Core/Resource/Factory/CMaterialLoader.h

@@ -25,6 +25,7 @@ class CMaterialLoader
 
     CMaterialLoader();
     ~CMaterialLoader();
+    FVertexDescription ConvertToVertexDescription(u32 VertexFlags);
 
     // Load Functions
     void ReadPrimeMatSet();

src/Core/Resource/Factory/CModelLoader.cpp

@@ -168,7 +168,7 @@ SSurface* CModelLoader::LoadSurface(IInputStream& rModel)
 
             // Color
             for (u32 iClr = 0; iClr < 2; iClr++)
-                if (VtxDesc & (eColor0 << (iClr * 2)))
+                if (VtxDesc & (eColor0 << iClr))
                     Vtx.Color[iClr] = mColors[rModel.ReadShort() & 0xFFFF];
 
             // Tex Coords - these are done a bit differently in DKCR than in the Prime series
@@ -185,7 +185,7 @@ SSurface* CModelLoader::LoadSurface(IInputStream& rModel)
 
                 // Tex1-7
                 for (u32 iTex = 1; iTex < 7; iTex++)
-                    if (VtxDesc & (eTex0 << (iTex * 2)))
+                    if (VtxDesc & (eTex0 << iTex))
                         Vtx.Tex[iTex] = mTex0[rModel.ReadShort() & 0xFFFF];
             }
 
@@ -194,7 +194,7 @@ SSurface* CModelLoader::LoadSurface(IInputStream& rModel)
                 // Tex0-7
                 for (u32 iTex = 0; iTex < 7; iTex++)
                 {
-                    if (VtxDesc & (eTex0 << iTex * 2))
+                    if (VtxDesc & (eTex0 << iTex))
                     {
                         if (!mSurfaceUsingTex1)
                             Vtx.Tex[iTex] = mTex0[rModel.ReadShort() & 0xFFFF];
@@ -289,7 +289,7 @@ SSurface* CModelLoader::LoadAssimpMesh(const aiMesh *pkMesh, CMaterialSet *pSet)
         if (pkMesh->HasNormals())   Desc |= eNormal;
 
         for (u32 iUV = 0; iUV < pkMesh->GetNumUVChannels(); iUV++)
-            Desc |= (eTex0 << (iUV * 2));
+            Desc |= (eTex0 << iUV);
 
         pMat->SetVertexDescription(Desc);
 
@@ -401,6 +401,7 @@ CModel* CModelLoader::LoadCMDL(IInputStream& rCMDL)
         BlockCount = rCMDL.ReadLong();
         MatSetCount = rCMDL.ReadLong();
 
+        if (Flags & 0x1) Loader.mFlags |= eSkinnedModel;
         if (Flags & 0x2) Loader.mFlags |= eShortNormals;
         if (Flags & 0x4) Loader.mFlags |= eHasTex1;
     }
@@ -459,9 +460,21 @@ CModel* CModelLoader::LoadCMDL(IInputStream& rCMDL)
 
     // Materials
     Loader.mMaterials.resize(MatSetCount);
-    for (u32 iMat = 0; iMat < MatSetCount; iMat++)
+    for (u32 iSet = 0; iSet < MatSetCount; iSet++)
     {
-        Loader.mMaterials[iMat] = CMaterialLoader::LoadMaterialSet(rCMDL, Loader.mVersion);
+        Loader.mMaterials[iSet] = CMaterialLoader::LoadMaterialSet(rCMDL, Loader.mVersion);
+
+        // Toggle skinning on materials
+        if (Loader.mFlags.HasAnyFlags(eSkinnedModel))
+        {
+            for (u32 iMat = 0; iMat < Loader.mMaterials[iSet]->NumMaterials(); iMat++)
+            {
+                CMaterial *pMat = Loader.mMaterials[iSet]->MaterialByIndex(iMat);
+                CMaterial::FMaterialOptions Options = pMat->Options();
+                pMat->SetOptions(Options | CMaterial::eSkinningEnabled);
+                pMat->SetVertexDescription(pMat->VtxDesc() | FVertexDescription(eBoneIndices | eBoneWeights));
+            }
+        }
 
         if (Loader.mVersion < eCorruptionProto)
             Loader.mpSectionMgr->ToNextSection();

src/Core/Resource/Factory/CModelLoader.h

@@ -20,7 +20,8 @@ public:
         eShortPositions = 0x1,
         eShortNormals   = 0x2,
         eHasTex1        = 0x4,
-        eHasVisGroups   = 0x8
+        eHasVisGroups   = 0x8,
+        eSkinnedModel   = 0x10
     };
     DECLARE_FLAGS(EModelFlag, FModelFlags)
 

src/Core/Resource/Factory/CSkeletonLoader.cpp

@@ -12,11 +12,23 @@ void CSkeletonLoader::SetLocalBoneCoords(CBone *pBone)
         pBone->mPosition -= pBone->mpParent->mPosition;
 }
 
+void CSkeletonLoader::CalculateBoneInverseBindMatrices()
+{
+    mpSkeleton->mInvBindMatrices.resize(mpSkeleton->MaxBoneID() + 1);
+
+    for (u32 iBone = 0; iBone < mpSkeleton->mBones.size(); iBone++)
+    {
+        CBone *pBone = mpSkeleton->mBones[iBone];
+        mpSkeleton->mInvBindMatrices[pBone->ID()] = CTransform4f::TranslationMatrix(-pBone->AbsolutePosition());
+    }
+}
+
 // ************ STATIC ************
 CSkeleton* CSkeletonLoader::LoadCINF(IInputStream& rCINF)
 {
     CSkeletonLoader Loader;
     CSkeleton *pSkel = new CSkeleton();
+    Loader.mpSkeleton = pSkel;
 
     u32 NumBones = rCINF.ReadLong();
     pSkel->mBones.reserve(NumBones);
@@ -78,6 +90,7 @@ CSkeleton* CSkeletonLoader::LoadCINF(IInputStream& rCINF)
     }
 
     Loader.SetLocalBoneCoords(pSkel->mpRootBone);
+    Loader.CalculateBoneInverseBindMatrices();
 
     // Skip bone ID array
     u32 NumBoneIDs = rCINF.ReadLong();

src/Core/Resource/Factory/CSkeletonLoader.h

@@ -12,6 +12,7 @@ class CSkeletonLoader
 
     CSkeletonLoader() {}
     void SetLocalBoneCoords(CBone *pBone);
+    void CalculateBoneInverseBindMatrices();
 
 public:
     static CSkeleton* LoadCINF(IInputStream& rCINF);

src/Core/Resource/Factory/CSkinLoader.cpp

@@ -0,0 +1,29 @@
+#include "CSkinLoader.h"
+#include <Common/Assert.h>
+
+// ************ STATIC ************
+CSkin* CSkinLoader::LoadCSKR(IInputStream& rCSKR)
+{
+    if (!rCSKR.IsValid()) return nullptr;
+
+    u32 NumVertexGroups = rCSKR.ReadLong();
+    CSkin *pSkin = new CSkin();
+    pSkin->mVertGroups.resize(NumVertexGroups);
+
+    for (u32 iGrp = 0; iGrp < NumVertexGroups; iGrp++)
+    {
+        CSkin::SVertGroup& rGroup = pSkin->mVertGroups[iGrp];
+        u32 NumWeights = rCSKR.ReadLong();
+        ASSERT(NumWeights <= 4);
+
+        for (u32 iWgt = 0; iWgt < NumWeights; iWgt++)
+        {
+            rGroup.Weights.Indices[iWgt] = (u8) rCSKR.ReadLong();
+            rGroup.Weights.Weights[iWgt] = rCSKR.ReadFloat();
+        }
+
+        rGroup.NumVertices = rCSKR.ReadLong();
+    }
+
+    return pSkin;
+}

src/Core/Resource/Factory/CSkinLoader.h

@@ -0,0 +1,14 @@
+#ifndef CSKINLOADER_H
+#define CSKINLOADER_H
+
+#include "Core/Resource/CSkin.h"
+#include "Core/Resource/TResPtr.h"
+
+class CSkinLoader
+{
+    CSkinLoader() {}
+public:
+    static CSkin* LoadCSKR(IInputStream& rCSKR);
+};
+
+#endif // CSKINLOADER_H

src/Core/Resource/Model/CModel.cpp

@@ -160,6 +160,46 @@ void CModel::DrawWireframe(FRenderOptions Options, CColor WireColor /*= CColor::
     glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
 }
 
+void CModel::SetSkin(CSkin *pSkin)
+{
+    if (mpSkin != pSkin)
+    {
+        const FVertexDescription kBoneFlags = (eBoneIndices | eBoneWeights);
+
+        mpSkin = pSkin;
+        mVBO.SetSkin(pSkin);
+        ClearGLBuffer();
+
+        if (pSkin && !mVBO.VertexDesc().HasAllFlags(kBoneFlags))
+            mVBO.SetVertexDesc(mVBO.VertexDesc() | kBoneFlags);
+        else if (!pSkin && mVBO.VertexDesc().HasAnyFlags(kBoneFlags))
+            mVBO.SetVertexDesc(mVBO.VertexDesc() & ~kBoneFlags);
+
+        for (u32 iSet = 0; iSet < mMaterialSets.size(); iSet++)
+        {
+            CMaterialSet *pSet = mMaterialSets[iSet];
+
+            for (u32 iMat = 0; iMat < pSet->NumMaterials(); iMat++)
+            {
+                CMaterial *pMat = pSet->MaterialByIndex(iMat);
+                FVertexDescription VtxDesc = pMat->VtxDesc();
+
+                if (pSkin && !VtxDesc.HasAllFlags(kBoneFlags))
+                {
+                    VtxDesc |= kBoneFlags;
+                    pMat->SetVertexDescription(VtxDesc);
+                }
+
+                else if (!pSkin && VtxDesc.HasAnyFlags(kBoneFlags))
+                {
+                    VtxDesc &= ~kBoneFlags;
+                    pMat->SetVertexDescription(VtxDesc);
+                }
+            }
+        }
+    }
+}
+
 u32 CModel::GetMatSetCount()
 {
     return mMaterialSets.size();

src/Core/Resource/Model/CModel.h

@@ -4,6 +4,7 @@
 #include "CBasicModel.h"
 #include "SSurface.h"
 #include "Core/Resource/CMaterialSet.h"
+#include "Core/Resource/CSkin.h"
 #include "Core/OpenGL/CIndexBuffer.h"
 #include "Core/OpenGL/GLCommon.h"
 #include "Core/Render/FRenderOptions.h"
@@ -13,6 +14,7 @@ class CModel : public CBasicModel
     friend class CModelLoader;
     friend class CModelCooker;
 
+    TResPtr<CSkin> mpSkin;
     std::vector<CMaterialSet*> mMaterialSets;
     std::vector<std::vector<CIndexBuffer>> mSurfaceIndexBuffers;
     bool mHasOwnMaterials;
@@ -28,6 +30,7 @@ public:
     void Draw(FRenderOptions Options, u32 MatSet);
     void DrawSurface(FRenderOptions Options, u32 Surface, u32 MatSet);
     void DrawWireframe(FRenderOptions Options, CColor WireColor = CColor::skWhite);
+    void SetSkin(CSkin *pSkin);
 
     u32 GetMatSetCount();
     u32 GetMatCount();
@@ -37,6 +40,8 @@ public:
     bool HasTransparency(u32 MatSet);
     bool IsSurfaceTransparent(u32 Surface, u32 MatSet);
 
+    bool IsSkinned() const  { return (mpSkin != nullptr); }
+
 private:
     CIndexBuffer* InternalGetIBO(u32 Surface, EGXPrimitiveType Primitive);
 };

src/Core/Resource/Model/CVertex.h

@@ -4,6 +4,10 @@
 #include <Common/CColor.h>
 #include <Math/CVector2f.h>
 #include <Math/CVector3f.h>
+#include <array>
+
+typedef std::array<u32, 4>      TBoneIndices;
+typedef std::array<float, 4>    TBoneWeights;
 
 class CVertex
 {
@@ -14,6 +18,8 @@ public:
     CVector3f Normal;
     CColor Color[2];
     CVector2f Tex[8];
+    TBoneIndices BoneIndices;
+    TBoneWeights BoneWeights;
     u8 MatrixIndices[8];
 
     CVertex() {}
@@ -35,7 +41,9 @@ public:
                 (Tex[4] == rkOther.Tex[4]) &&
                 (Tex[5] == rkOther.Tex[5]) &&
                 (Tex[6] == rkOther.Tex[6]) &&
-                (Tex[7] == rkOther.Tex[7]));
+                (Tex[7] == rkOther.Tex[7]) &&
+                (BoneIndices == rkOther.BoneIndices) &&
+                (BoneWeights == rkOther.BoneWeights));
     }
 };
 

src/Core/Resource/Model/EVertexAttribute.cpp

@@ -0,0 +1,32 @@
+#include "EVertexAttribute.h"
+#include <Common/Log.h>
+
+const u32 gkNumVertexAttribs = 22;
+
+u32 VertexAttributeSize(EVertexAttribute Attrib)
+{
+    switch (Attrib)
+    {
+    case ePosition:
+    case eNormal:
+        return 0x0C;
+    case eColor0:
+    case eColor1:
+    case eBoneWeights:
+        return 0x10;
+    case eTex0:
+    case eTex1:
+    case eTex2:
+    case eTex3:
+    case eTex4:
+    case eTex5:
+    case eTex6:
+    case eTex7:
+        return 0x08;
+    case eBoneIndices:
+        return 0x04;
+    default:
+        Log::Error("AttributeSize(): Unknown vertex attribute: " + TString::FromInt32(Attrib, 0, 10));
+        return 0x00;
+    }
+}

src/Core/Resource/Model/EVertexAttribute.h

@@ -6,28 +6,33 @@
 enum EVertexAttribute
 {
     eNoAttributes   = 0x0,
-    ePosition       = 0x3,
+    ePosition       = 0x1,
-    eNormal         = 0xC,
+    eNormal         = 0x2,
-    eColor0         = 0x30,
+    eColor0         = 0x4,
-    eColor1         = 0xC0,
+    eColor1         = 0x8,
-    eTex0           = 0x300,
+    eTex0           = 0x10,
-    eTex1           = 0xC00,
+    eTex1           = 0x20,
-    eTex2           = 0x3000,
+    eTex2           = 0x40,
-    eTex3           = 0xC000,
+    eTex3           = 0x80,
-    eTex4           = 0x30000,
+    eTex4           = 0x100,
-    eTex5           = 0xC0000,
+    eTex5           = 0x200,
-    eTex6           = 0x300000,
+    eTex6           = 0x400,
-    eTex7           = 0xC00000,
+    eTex7           = 0x800,
-    ePosMtx         = 0x1000000,
+    eBoneIndices    = 0x1000,
-    eTex0Mtx        = 0x2000000,
+    eBoneWeights    = 0x2000,
-    eTex1Mtx        = 0x4000000,
+    ePosMtx         = 0x4000,
-    eTex2Mtx        = 0x8000000,
+    eTex0Mtx        = 0x8000,
-    eTex3Mtx        = 0x10000000,
+    eTex1Mtx        = 0x10000,
-    eTex4Mtx        = 0x20000000,
+    eTex2Mtx        = 0x20000,
-    eTex5Mtx        = 0x40000000,
+    eTex3Mtx        = 0x40000,
-    eTex6Mtx        = 0x80000000
+    eTex4Mtx        = 0x80000,
+    eTex5Mtx        = 0x100000,
+    eTex6Mtx        = 0x200000
 };
 DECLARE_FLAGS(EVertexAttribute, FVertexDescription)
 
+extern const u32 gkNumVertexAttribs;
+u32 VertexAttributeSize(EVertexAttribute Attrib);
+
 #endif // EVERTEXATTRIBUTE
 

src/Core/Scene/CCharacterNode.cpp

@@ -23,22 +23,64 @@ void CCharacterNode::PostLoad()
     }
 }
 
-void CCharacterNode::AddToRenderer(CRenderer *pRenderer, const SViewInfo& /*rkViewInfo*/)
+void CCharacterNode::AddToRenderer(CRenderer *pRenderer, const SViewInfo& rkViewInfo)
 {
     if (!mpCharacter) return;
+    // todo: frustum check. Currently don't have a means of pulling the AABox for the
+    // current animation so this isn't in yet.
 
-    if (mpCharacter->NodeSkeleton(mActiveCharSet))
+    CModel *pModel = mpCharacter->NodeModel(mActiveCharSet);
+    CSkeleton *pSkel = mpCharacter->NodeSkeleton(mActiveCharSet);
+
+    if (pModel)
     {
-        pRenderer->AddOpaqueMesh(this, 0, AABox(), eDrawMesh);
+        if (!pModel->HasTransparency(0))
+            pRenderer->AddOpaqueMesh(this, -1, AABox(), eDrawMesh);
+        else
+            AddSurfacesToRenderer(pRenderer, pModel, 0, rkViewInfo, false);
+    }
+
+    if (pSkel)
+    {
+        CAnimation *pAnim = mpCharacter->Animation(mActiveAnim);
+        pSkel->UpdateTransform(mTransformData, pAnim, mAnimTime, false);
+
+        if (rkViewInfo.ShowFlags.HasFlag(eShowSkeletons))
+            pRenderer->AddOpaqueMesh(this, -2, AABox(), eDrawMesh);
     }
 }
 
-void CCharacterNode::Draw(FRenderOptions Options, int /*ComponentIndex*/, const SViewInfo& /*rkViewInfo*/)
+void CCharacterNode::Draw(FRenderOptions Options, int ComponentIndex, const SViewInfo& rkViewInfo)
 {
     CSkeleton *pSkel = mpCharacter->NodeSkeleton(mActiveCharSet);
-    CAnimation *pAnim = mpCharacter->Animation(mActiveAnim);
+
-    pSkel->UpdateTransform(mTransformData, pAnim, mAnimTime, false);
+    // Draw skeleton
+    if (ComponentIndex == -2)
+    {
         pSkel->Draw(Options, mTransformData);
+    }
+
+    // Draw mesh
+    else
+    {
+        // Set lighting
+        CGraphics::SetDefaultLighting();
+        CGraphics::UpdateLightBlock();
+        CGraphics::sVertexBlock.COLOR0_Amb = CGraphics::skDefaultAmbientColor;
+        CGraphics::sPixelBlock.LightmapMultiplier = 1.f;
+        CGraphics::sPixelBlock.TevColor = CColor::skWhite;
+        CGraphics::sPixelBlock.TintColor = TintColor(rkViewInfo);
+
+        // Draw surface OR draw entire model
+        CGraphics::LoadBoneTransforms(mTransformData);
+        CGraphics::LoadBoneInverseBindTransforms(pSkel);
+        CModel *pModel = mpCharacter->NodeModel(mActiveCharSet);
+
+        if (ComponentIndex < 0)
+            pModel->Draw(Options, 0);
+        else
+            pModel->DrawSurface(Options, ComponentIndex, 0);
+    }
 }
 
 SRayIntersection CCharacterNode::RayNodeIntersectTest(const CRay& rkRay, u32 /*AssetID*/, const SViewInfo& /*rkViewInfo*/)

src/Core/Scene/CModelNode.cpp

@@ -83,6 +83,9 @@ void CModelNode::Draw(FRenderOptions Options, int ComponentIndex, const SViewInf
     CGraphics::sPixelBlock.TintColor = TintColor(rkViewInfo);
     LoadModelMatrix();
 
+    if (mpModel->IsSkinned())
+        CGraphics::LoadIdentityBoneTransforms();
+
     if (ComponentIndex < 0)
         mpModel->Draw(Options, mActiveMatSet);
     else

src/Core/Scene/CSceneNode.cpp

@@ -224,7 +224,7 @@ void CSceneNode::DrawRotationArrow() const
     spArrowModel->Draw(eNoRenderOptions, 0);
 }
 
-void CSceneNode::AddSurfacesToRenderer(CRenderer *pRenderer, CModel *pModel, u32 MatSet, const SViewInfo& rkViewInfo)
+void CSceneNode::AddSurfacesToRenderer(CRenderer *pRenderer, CModel *pModel, u32 MatSet, const SViewInfo& rkViewInfo, bool DoFrustumTest /*= true*/)
 {
     u32 SurfaceCount = pModel->GetSurfaceCount();
 
@@ -232,7 +232,7 @@ void CSceneNode::AddSurfacesToRenderer(CRenderer *pRenderer, CModel *pModel, u32
     {
         CAABox TransformedBox = pModel->GetSurfaceAABox(iSurf).Transformed(Transform());
 
-        if (rkViewInfo.ViewFrustum.BoxInFrustum(TransformedBox))
+        if (!DoFrustumTest || rkViewInfo.ViewFrustum.BoxInFrustum(TransformedBox))
         {
             if (!pModel->IsSurfaceTransparent(iSurf, MatSet))
                 pRenderer->AddOpaqueMesh(this, (int) iSurf, TransformedBox, eDrawMesh);

src/Core/Scene/CSceneNode.h

@@ -79,7 +79,7 @@ public:
     void LoadLights(const SViewInfo& rkViewInfo);
     void DrawBoundingBox() const;
     void DrawRotationArrow() const;
-    void AddSurfacesToRenderer(CRenderer *pRenderer, CModel *pModel, u32 MatSet, const SViewInfo& rkViewInfo);
+    void AddSurfacesToRenderer(CRenderer *pRenderer, CModel *pModel, u32 MatSet, const SViewInfo& rkViewInfo, bool DoFrustumTest = true);
 
     // Transform
     void Translate(const CVector3f& rkTranslation, ETransformSpace TransformSpace);

src/Core/Scene/FShowFlags.h

@@ -14,7 +14,8 @@ enum EShowFlag
     eShowObjects            = 0x18,
     eShowLights             = 0x20,
     eShowSky                = 0x40,
-    eShowAll                = 0x7F
+    eShowSkeletons          = 0x80,
+    eShowAll                = 0xFFFFFFFF
 };
 DECLARE_FLAGS(EShowFlag, FShowFlags)
 

src/Editor/CBasicViewport.cpp

@@ -178,6 +178,14 @@ void CBasicViewport::contextMenuEvent(QContextMenuEvent *pEvent)
     pEvent->ignore();
 }
 
+void CBasicViewport::SetShowFlag(EShowFlag Flag, bool Visible)
+{
+    if (Visible)
+        mViewInfo.ShowFlags |= Flag;
+    else
+        mViewInfo.ShowFlags &= ~Flag;
+}
+
 void CBasicViewport::SetGameMode(bool Enabled)
 {
     mViewInfo.GameMode = Enabled;

src/Editor/CBasicViewport.h

@@ -52,6 +52,7 @@ public:
     void focusOutEvent(QFocusEvent *pEvent);
     void contextMenuEvent(QContextMenuEvent *pEvent);
 
+    void SetShowFlag(EShowFlag Flag, bool Visible);
     void SetGameMode(bool Enabled);
     void SetCursorState(const QCursor& rkCursor);
     void SetCursorVisible(bool Visible);

src/Editor/CSceneViewport.cpp

@@ -42,14 +42,6 @@ void CSceneViewport::SetScene(INodeEditor *pEditor, CScene *pScene)
     mpScene = pScene;
 }
 
-void CSceneViewport::SetShowFlag(EShowFlag Flag, bool Visible)
-{
-    if (Visible)
-        mViewInfo.ShowFlags |= Flag;
-    else
-        mViewInfo.ShowFlags &= ~Flag;
-}
-
 void CSceneViewport::SetShowWorld(bool Visible)
 {
     if (mRenderingMergedWorld)

src/Editor/CSceneViewport.h

@@ -47,7 +47,6 @@ public:
     CSceneViewport(QWidget *pParent = 0);
     ~CSceneViewport();
     void SetScene(INodeEditor *pEditor, CScene *pScene);
-    void SetShowFlag(EShowFlag Flag, bool Visible);
     void SetShowWorld(bool Visible);
     void SetRenderMergedWorld(bool RenderMerged);
     FShowFlags ShowFlags() const;

src/Editor/CharacterEditor/CCharacterEditor.cpp

@@ -39,6 +39,7 @@ CCharacterEditor::CCharacterEditor(QWidget *parent)
 
     connect(ui->Viewport, SIGNAL(HoverBoneChanged(u32)), this, SLOT(HoverBoneChanged(u32)));
     connect(ui->ActionOpen, SIGNAL(triggered()), this, SLOT(Open()));
+    connect(ui->ActionShowSkeleton, SIGNAL(toggled(bool)), this, SLOT(ToggleSkeletonVisible(bool)));
     connect(mpCharComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(SetActiveCharacterIndex(int)));
     connect(mpAnimComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(SetActiveAnimation(int)));
 
@@ -143,6 +144,11 @@ void CCharacterEditor::Open()
     gResCache.Clean();
 }
 
+void CCharacterEditor::ToggleSkeletonVisible(bool Visible)
+{
+    ui->Viewport->SetShowFlag(eShowSkeletons, Visible);
+}
+
 void CCharacterEditor::RefreshViewport()
 {
     UpdateAnimTime();
@@ -171,7 +177,7 @@ void CCharacterEditor::SetActiveAnimation(int AnimIndex)
     mLastAnimUpdate = CTimer::GlobalTime();
 
     ui->AnimSlider->blockSignals(true);
-    ui->AnimSlider->setMaximum((int) (mpSet->Animation(AnimIndex)->Duration() * 1000));
+    ui->AnimSlider->setMaximum((int) (CurrentAnimation() ? CurrentAnimation()->Duration() * 1000 : 0));
     ui->AnimSlider->blockSignals(false);
 
     SetAnimTime(0.f);

src/Editor/CharacterEditor/CCharacterEditor.h

@@ -28,6 +28,7 @@ class CCharacterEditor : public QMainWindow
     TResPtr<CAnimSet> mpSet;
     u32 mCurrentChar;
     u32 mCurrentAnim;
+    bool mShowSkeleton;
 
     // Playback Controls
     double mLastAnimUpdate;
@@ -44,6 +45,7 @@ public:
 
 public slots:
     void Open();
+    void ToggleSkeletonVisible(bool Visible);
     void RefreshViewport();
     void HoverBoneChanged(u32 BoneID);
     void SetActiveCharacterIndex(int CharIndex);

src/Editor/CharacterEditor/CCharacterEditor.ui

@@ -154,6 +154,8 @@
     <bool>false</bool>
    </attribute>
    <addaction name="ActionOpen"/>
+   <addaction name="separator"/>
+   <addaction name="ActionShowSkeleton"/>
   </widget>
   <action name="ActionOpen">
    <property name="icon">
@@ -170,6 +172,17 @@
     <string>Ctrl+O</string>
    </property>
   </action>
+  <action name="ActionShowSkeleton">
+   <property name="checkable">
+    <bool>true</bool>
+   </property>
+   <property name="text">
+    <string>Show Skeleton</string>
+   </property>
+   <property name="toolTip">
+    <string>Show Skeleton</string>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>

src/Editor/CharacterEditor/CCharacterEditorViewport.cpp

@@ -9,6 +9,7 @@ CCharacterEditorViewport::CCharacterEditorViewport(QWidget *pParent /*= 0*/)
     mpRenderer->SetClearColor(CColor(0.3f, 0.3f, 0.3f));
     mpRenderer->ToggleGrid(true);
 
+    mViewInfo.ShowFlags = eShowNone; // The mesh doesn't check any show flags so this just disables the skeleton.
     mViewInfo.pRenderer = mpRenderer;
     mViewInfo.pScene = nullptr;
     mViewInfo.GameMode = false;

src/Math/CVector2f.cpp

@@ -22,7 +22,7 @@ CVector2f::CVector2f(IInputStream& rInput)
     Y = rInput.ReadFloat();
 }
 
-void CVector2f::Write(IOutputStream& rOutput)
+void CVector2f::Write(IOutputStream& rOutput) const
 {
     rOutput.WriteFloat(X);
     rOutput.WriteFloat(Y);

src/Math/CVector2f.h

@@ -12,7 +12,7 @@ public:
     CVector2f(float XY);
     CVector2f(float _X, float _Y);
     CVector2f(IInputStream& rInput);
-    void Write(IOutputStream& rOutput);
+    void Write(IOutputStream& rOutput) const;
 
     float Magnitude() const;
     float SquaredMagnitude() const;

src/Math/CVector3f.cpp

@@ -29,7 +29,7 @@ CVector3f::CVector3f(IInputStream& rInput)
     Z = rInput.ReadFloat();
 }
 
-void CVector3f::Write(IOutputStream& rOutput)
+void CVector3f::Write(IOutputStream& rOutput) const
 {
     rOutput.WriteFloat(X);
     rOutput.WriteFloat(Y);

src/Math/CVector3f.h

@@ -19,7 +19,7 @@ public:
     CVector3f(float XYZ);
     CVector3f(float _X, float _Y, float _Z);
     CVector3f(IInputStream& rInput);
-    void Write(IOutputStream& rOutput);
+    void Write(IOutputStream& rOutput) const;
 
     // Swizzle
     CVector2f XY();

src/Math/MathUtil.cpp

@@ -37,20 +37,20 @@ float RadiansToDegrees(float Rad)
     return Rad * 180.f / skPi;
 }
 
-std::pair<bool,float> RayPlaneIntersection(const CRay& rkRay, const CPlane& plane)
+std::pair<bool,float> RayPlaneIntersection(const CRay& rkRay, const CPlane& rkPlane)
 {
     // Code based on ray/plane intersect code from Ogre
     // https://bitbucket.org/sinbad/ogre/src/197116fd2ac62c57cdeed1666f9866c3dddd4289/OgreMain/src/OgreMath.cpp?at=default#OgreMath.cpp-350
 
     // Are ray and plane parallel?
-    float Denom = plane.Normal().Dot(rkRay.Direction());
+    float Denom = rkPlane.Normal().Dot(rkRay.Direction());
 
     if (Abs(Denom) < FLT_EPSILON)
         return std::pair<bool,float>(false, 0.f);
 
     // Not parallel
-    float nom = plane.Normal().Dot(rkRay.Origin()) + plane.Dist();
+    float Nom = rkPlane.Normal().Dot(rkRay.Origin()) + rkPlane.Dist();
-    float t = -(nom / Denom);
+    float t = -(Nom / Denom);
     return std::pair<bool,float>(t >= 0.f, t);
 }