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Implement line renderer (OpenGL only for now)

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This commit is contained in:
Jack Andersen
2016-02-17 16:42:32 -10:00
parent cfee7b61bb
commit 365f6ac9e7
21 changed files with 779 additions and 83 deletions
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142
Runtime/Graphics/CLineRendererShadersGLSL.cpp Normal file
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#include "CLineRendererShaders.hpp"
#include "CLineRenderer.hpp"
namespace pshag
{
static const char* VS_GLSL_TEX =
"#version 330\n"
"layout(location=0) in vec4 posIn;\n"
"layout(location=1) in vec4 colorIn;\n"
"layout(location=2) in vec4 uvIn;\n"
"\n"
"uniform LineUniform\n"
"{\n"
" vec4 moduColor;\n"
"};\n"
"\n"
"struct VertToFrag\n"
"{\n"
" vec4 color;\n"
" vec2 uv;\n"
"};\n"
"\n"
"out VertToFrag vtf;\n"
"void main()\n"
"{\n"
" vtf.color = colorIn * moduColor;\n"
" vtf.uv = uvIn.xy;\n"
" gl_Position = posIn;\n"
"}\n";
static const char* FS_GLSL_TEX =
"#version 330\n"
"struct VertToFrag\n"
"{\n"
" vec4 color;\n"
" vec2 uv;\n"
"};\n"
"\n"
"in VertToFrag vtf;\n"
"layout(location=0) out vec4 colorOut;\n"
"uniform sampler2D texs[1];\n"
"void main()\n"
"{\n"
" colorOut = vtf.color * texture(texs[0], vtf.uv);\n"
"}\n";
static const char* VS_GLSL_NOTEX =
"#version 330\n"
"layout(location=0) in vec4 posIn;\n"
"layout(location=1) in vec4 colorIn;\n"
"\n"
"uniform LineUniform\n"
"{\n"
" vec4 moduColor;\n"
"};\n"
"\n"
"struct VertToFrag\n"
"{\n"
" vec4 color;\n"
"};\n"
"\n"
"out VertToFrag vtf;\n"
"void main()\n"
"{\n"
" vtf.color = colorIn * moduColor;\n"
" gl_Position = posIn;\n"
"}\n";
static const char* FS_GLSL_NOTEX =
"#version 330\n"
"struct VertToFrag\n"
"{\n"
" vec4 color;\n"
"};\n"
"\n"
"in VertToFrag vtf;\n"
"layout(location=0) out vec4 colorOut;\n"
"void main()\n"
"{\n"
" colorOut = vtf.color;\n"
"}\n";
struct GLSLLineDataBindingFactory : CLineRendererShaders::IDataBindingFactory
{
void BuildShaderDataBinding(CLineRenderer& renderer, boo::IShaderPipeline* pipeline, boo::ITexture* texture)
{
boo::IVertexFormat* vtxFmt = nullptr;
int texCount = 0;
boo::ITexture* textures[1];
if (texture)
{
textures[0] = texture;
texCount = 1;
const boo::VertexElementDescriptor TexFmtTex[] =
{
{renderer.m_vertBuf, nullptr, boo::VertexSemantic::Position4},
{renderer.m_vertBuf, nullptr, boo::VertexSemantic::Color},
{renderer.m_vertBuf, nullptr, boo::VertexSemantic::UV4}
};
vtxFmt = CGraphics::g_BooFactory->newVertexFormat(3, TexFmtTex);
}
else
{
const boo::VertexElementDescriptor TexFmtNoTex[] =
{
{renderer.m_vertBuf, nullptr, boo::VertexSemantic::Position4},
{renderer.m_vertBuf, nullptr, boo::VertexSemantic::Color}
};
vtxFmt = CGraphics::g_BooFactory->newVertexFormat(2, TexFmtNoTex);
}
boo::IGraphicsBuffer* uniforms[] = {renderer.m_uniformBuf};
renderer.m_shaderBind = CGraphics::g_BooFactory->newShaderDataBinding(pipeline, vtxFmt, renderer.m_vertBuf,
nullptr, nullptr, 1, uniforms,
texCount, textures);
}
};
CLineRendererShaders::IDataBindingFactory* CLineRendererShaders::Initialize(boo::GLDataFactory& factory)
{
static const char* UniNames[] = {"LineUniform"};
m_texAlpha = factory.newShaderPipeline(VS_GLSL_TEX, FS_GLSL_TEX, 1, "texs", 1, UniNames,
boo::BlendFactor::SrcAlpha, boo::BlendFactor::InvSrcAlpha,
false, true, false);
m_texAdditive = factory.newShaderPipeline(VS_GLSL_TEX, FS_GLSL_TEX, 1, "texs", 1, UniNames,
boo::BlendFactor::SrcAlpha, boo::BlendFactor::One,
false, false, false);
m_noTexAlpha = factory.newShaderPipeline(VS_GLSL_NOTEX, FS_GLSL_NOTEX, 1, nullptr, 1, UniNames,
boo::BlendFactor::SrcAlpha, boo::BlendFactor::InvSrcAlpha,
false, true, false);
m_noTexAdditive = factory.newShaderPipeline(VS_GLSL_NOTEX, FS_GLSL_NOTEX, 1, nullptr, 1, UniNames,
boo::BlendFactor::SrcAlpha, boo::BlendFactor::One,
false, false, false);
return new struct GLSLLineDataBindingFactory;
}
}