C++ Batch::Has_NormalMap方法代码示例

//.........这里部分代码省略.........
			if(bonein ==-1){//  did not find the bone, this is a new one push back
				bonein = bonenames.size();// get the index before insertion
				bonenames.push_back(bone->mName.data);
			}
			// there should only be 4 per vertex here because assimp guaranteees it, but if there are more, we are ok
			for( unsigned int b = 0; b < bone->mNumWeights; b++){
				if(			tempverts[bone->mWeights[b].mVertexId+ currentvertex].Weights.x <= 0.f) {
							tempverts[bone->mWeights[b].mVertexId+ currentvertex].Bones[0] = static_cast<float>(bonein);
							tempverts[bone->mWeights[b].mVertexId+ currentvertex].Weights.x = bone->mWeights[b].mWeight;
				} else if(	tempverts[bone->mWeights[b].mVertexId+ currentvertex].Weights.y <= 0.f){
							tempverts[bone->mWeights[b].mVertexId+ currentvertex].Bones[1] = static_cast<float>(bonein);
							tempverts[bone->mWeights[b].mVertexId+ currentvertex].Weights.y = bone->mWeights[b].mWeight;
				} else if(	tempverts[bone->mWeights[b].mVertexId+ currentvertex].Weights.z <= 0.f){
							tempverts[bone->mWeights[b].mVertexId+ currentvertex].Bones[2] = static_cast<float>(bonein);
							tempverts[bone->mWeights[b].mVertexId+ currentvertex].Weights.z = bone->mWeights[b].mWeight;
				} else if(	tempverts[bone->mWeights[b].mVertexId+ currentvertex].Weights.w <= 0.f){
							tempverts[bone->mWeights[b].mVertexId+ currentvertex].Bones[3] = static_cast<float>(bonein);
							tempverts[bone->mWeights[b].mVertexId+ currentvertex].Weights.w = bone->mWeights[b].mWeight;
				}
			}
			
		}
		for (unsigned int x = 0; x < mesh->mNumVertices;++x){
			Vertices[x + currentvertex] = tempverts[x + currentvertex].Pos = *reinterpret_cast<vec3*>(&mesh->mVertices[x]);
			tempverts[x + currentvertex].Tex =  *reinterpret_cast<vec2*>(&mesh->mTextureCoords[0][x]);
			tempverts[x + currentvertex].Norm = *reinterpret_cast<vec3*>(&mesh->mNormals[x]);
			tempverts[x + currentvertex].Tang = *reinterpret_cast<vec3*>(&mesh->mTangents[x]);
		}
		// check whether we can use 16 bit indices for our format... the ASSIMPOBLARBLA uses 32 bit indices for all theirs..
		if (IB.Stride == 4){
			uint32_t* pbData = reinterpret_cast<uint32_t*>(&Indices[currentindex]);
			for (unsigned int x = 0; x < mesh->mNumFaces;++x){
				for (unsigned int a = 0; a < 3 ;++a) {
					*pbData++ = static_cast<uint32_t>(mesh->mFaces[x].mIndices[a]+ currentvertex);
				}
			}
		} else {
			uint16_t* pbData = reinterpret_cast<uint16_t*>(&Indices[currentindex]);
			for (unsigned int x = 0; x < mesh->mNumFaces;++x){
				for (unsigned int a = 0; a < 3 ;++a) {
					*pbData++ = static_cast<uint16_t>(mesh->mFaces[x].mIndices[a]+ currentvertex);
				}
			}
		}
		//load the textures
		std::string pathtomodel(GetPath(file));
		Batch *batch = new Batch();

		LoadMaterials(mesh, load->mMaterials, batch, pathtomodel, Asset_Dir);
		batch->NumIndices=mesh->mNumFaces*3;
		batch->StartIndex = static_cast<uint32_t>(currentindex);
		batch->NumVerts= mesh->mNumVertices;
		// make sure to increment the ref count for thesse so they are properly destroyed

		currentvertex+=mesh->mNumVertices;
		currentindex+=mesh->mNumFaces*3;

		//For now, there will be a new shader for each material. I will create a shader cache where the graphics lib will cache the shaders and issue out already created shaders like it does with textures.
		Graphics::Shader_Macro macro1[] = {
			{"NORMALMAP", "1" }, 
			{"MATRIX_PALETTE_SIZE_DEFAULT", "60" }, 
			{NULL, NULL}
		};
		Graphics::Shader_Macro macro0[] = {
			{"NORMALMAP", "0" }, 
			{"MATRIX_PALETTE_SIZE_DEFAULT", "60" }, 
			{NULL, NULL}
		};

		Graphics::Shader_Macro* ptr = nullptr;
		if(batch->Has_NormalMap()) ptr = macro1;
		else ptr = macro0;

		batch->GetVS()->CompileShaderFromFile("Animated_Mesh.fx", "VS", "vs_4_0", ptr);

		FormatDesc lay[] = {
			FormatDesc(),
			FormatDesc(TYPE_TEXCOORD, FORMAT_FLOAT, 2),
			FormatDesc(TYPE_NORMAL, FORMAT_FLOAT, 3),
			FormatDesc(TYPE_TANGENT, FORMAT_FLOAT, 3),
			FormatDesc(TYPE_BONE, FORMAT_FLOAT, 4),
			FormatDesc(TYPE_WEIGHT, FORMAT_FLOAT, 4)
		};
		batch->GetVS()->CreateInputLayout(lay, sizeof(lay)/sizeof(FormatDesc));
		batch->GetPS()->CompileShaderFromFile("Animated_Mesh.fx", "PS", "ps_4_0", ptr);

		Batches.push_back(batch);
	}
	Animatior.Init(load);
	aiReleaseImport(load);// free the resrouces
	if(currentvertex==0) {// this could happen, if so GET OUTOF HERE
		OUTPUT_DEBUG_MSG("Problem loading the mesh, there were no vertices loaded. Failed to load the mesh");
		return false;
	}
	VB[0].Create(currentvertex, sizeof(Vertex_Types::Pos_Tex_Norm_Tang_Bone_Weight), VERTEX_BUFFER, IMMUTABLE, CPU_NONE, &tempverts[0] );
	IB.Create(currentindex, IB.Stride, INDEX_BUFFER, IMMUTABLE, CPU_NONE, &Indices[0]); // create index buffer!
	OUTPUT_DEBUG_MSG("Finished Loading the Mesh");
	Name=FileName =file;
	return true;
}