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Add CPU-based skinning path for vertex manipulation effects

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This commit is contained in:
Jack Andersen
2017-08-20 19:46:59 -10:00
parent d67d6a1aa7
commit c66f9d0ec7
28 changed files with 465 additions and 123 deletions
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33
Runtime/Character/CSkinRules.cpp
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@@ -1,5 +1,7 @@
#include "CSkinRules.hpp"
#include "CToken.hpp"
#include "Graphics/CModel.hpp"
#include "CPoseAsTransforms.hpp"
namespace urde
{
@@ -10,6 +12,37 @@ CSkinRules::CSkinRules(CInputStream& in)
x0_skinBanks.reserve(bankCount);
for (u32 i=0 ; i<bankCount ; ++i)
x0_skinBanks.emplace_back(in);
u32 virtualBoneCount = in.readUint32Big();
m_virtualBones.reserve(virtualBoneCount);
for (u32 i=0 ; i<virtualBoneCount ; ++i)
m_virtualBones.emplace_back(in);
u32 poolSz = in.readUint32Big();
m_poolToSkinIdx.reserve(poolSz);
for (u32 i=0 ; i<poolSz ; ++i)
m_poolToSkinIdx.push_back(in.readUint32Big());
}
void CSkinRules::TransformVerticesCPU(std::vector<std::pair<zeus::CVector3f, zeus::CVector3f>>& vnOut,
const CPoseAsTransforms& pose, const CModel& model) const
{
vnOut.resize(m_poolToSkinIdx.size());
for (size_t i=0 ; i<m_poolToSkinIdx.size() ; ++i)
{
const CVirtualBone& vb = m_virtualBones[m_poolToSkinIdx[i]];
zeus::CVector3f origVertex = model.GetPoolVertex(i);
zeus::CVector3f vertex;
zeus::CVector3f origNormal = model.GetPoolNormal(i);
zeus::CVector3f normal;
for (const SSkinWeighting& w : vb.GetWeights())
{
const zeus::CTransform& xf = pose.GetRestToAccumTransform(w.m_id);
vertex += (xf * origVertex) * w.m_weight;
normal += (xf.basis.inverted().transposed() * origVertex) * w.m_weight;
}
vnOut[i] = std::make_pair(vertex, normal);
}
}
CFactoryFnReturn FSkinRulesFactory(const SObjectTag& tag, CInputStream& in, const CVParamTransfer& params,