U1 Resource::CreateHardwareBuff( MeshHDBuffer* pOutBuff,CalCoreMesh* pInMesh ){
std::vector<ABuff> vertexData;
std::vector<UInt> indexData;
SInt iMeshCount = pInMesh->getCoreSubmeshCount();
SInt iVertexCount = 0;
SInt iIndexCount = 0;
//首先计算顶点数 和 索引数
for(SInt i=0;i<iMeshCount;i++){
CalCoreSubmesh* pSubMesh = pInMesh->getCoreSubmesh(i);
iVertexCount += pSubMesh->getVectorVertex().size();
iIndexCount += pSubMesh->getFaceCount()*3;
}
if( iVertexCount == 0 ||
iIndexCount == 0)
{
return false;
}
//分配空间
vertexData.resize(iVertexCount);
indexData.resize(iIndexCount);
SInt iV = 0;
SInt iI = 0;
for(SInt i=0;i<iMeshCount;i++){
CalCoreSubmesh* pSubMesh = pInMesh->getCoreSubmesh(i);
//计算切线
pSubMesh->enableTangents(0,true);
std::vector<CalCoreSubmesh::Vertex>& lstVector = pSubMesh->getVectorVertex();
std::vector<std::vector<CalCoreSubmesh::TangentSpace> >& lstTangent = pSubMesh->getVectorVectorTangentSpace();
std::vector<std::vector<CalCoreSubmesh::TextureCoordinate> >& lstTexcoord = pSubMesh->getVectorVectorTextureCoordinate();
std::vector<CalCoreSubmesh::Face>& lstFace = pSubMesh->getVectorFace();
SInt iFaceCount = lstFace.size();
//索引缓冲
for(SInt j=0;j<iFaceCount;j++){
indexData[iI] = lstFace[j].vertexId[0] + iV;
indexData[iI+1] = lstFace[j].vertexId[1] + iV;
indexData[iI+2] = lstFace[j].vertexId[2] + iV;
iI += 3;
}
//顶点缓冲数据
for(SInt j=0;j<iVertexCount;j++){
CalCoreSubmesh::Vertex& ver = lstVector[j];
CalCoreSubmesh::TangentSpace tang = lstTangent[0][j];
CalCoreSubmesh::TextureCoordinate uv = lstTexcoord[0][j];
//位置
vertexData[iV].Position = Float3(ver.position.x,ver.position.y,ver.position.z);
SInt iBoneCount = ver.vectorInfluence.size();
for(SInt k=0;k<4;k++){
if(k<iBoneCount){
vertexData[iV].BoneWeight[k] = ver.vectorInfluence[k].weight*255.0f;
//如果只传递自己需要的矩阵
//骨骼索引变成0~n
vertexData[iV].BoneIndex[k] = ver.vectorInfluence[k].boneId;
}else{
vertexData[iV].BoneWeight[k] = 0;
vertexData[iV].BoneIndex[k] = 0;
}
}
//法线
vertexData[iV].Normal = Float3(ver.normal.x,ver.normal.y,ver.normal.z);
//UV
vertexData[iV].UV.x = uv.u;
vertexData[iV].UV.y = uv.v;
//切线
vertexData[iV].Tangent.x = tang.tangent.x;
vertexData[iV].Tangent.y = tang.tangent.y;
vertexData[iV].Tangent.z = tang.tangent.z;
iV++;
}
AString strName = m_strProductName + pInMesh->getName();
Render::Vertex::IDeclare::Info dInfo;
dInfo.SetPNTT_Animation();
pOutBuff->pVertexDeclare = Render::System::GetSingleton()->CreateProduct<Render::Vertex::IDeclare>("PNTTANIM",&dInfo);
Render::Buffer::Info vInfo;
vInfo.SetVertexBuffer(iVertexCount,52);
vInfo.InitData = &vertexData[0];
pOutBuff->pVertexBuff = Render::System::GetSingleton()->CreateProduct<Render::Buffer>(strName+"VB",&vInfo);
vInfo.SetIndexBuffer32(iFaceCount*3);
vInfo.InitData = &indexData[0];
pOutBuff->pIndexBuff = Render::System::GetSingleton()->CreateProduct<Render::Buffer>(strName+"IB",&vInfo);
}
return true;
}
