本文整理汇总了C++中VertexElement::getSizeInByte方法的典型用法代码示例。如果您正苦于以下问题：C++ VertexElement::getSizeInByte方法的具体用法？C++ VertexElement::getSizeInByte怎么用？C++ VertexElement::getSizeInByte使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类VertexElement的用法示例。
在下文中一共展示了VertexElement::getSizeInByte方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: mLoad
//--------------------------------------------------------------------
Status MeshManager::mLoad(std::shared_ptr<Mesh> mesh, const std::string &sid,
std::vector<glm::vec3> &positions,
std::vector<glm::vec2> &uvs,
std::vector<glm::vec3> &flatNormals,
std::vector<VertexIndices> &vertexIndices) const {
bool hasUv, hasFlat, hasSmooth;
hasUv = !uvs.empty();
if (!hasUv) {
Log::trace(TAG, "no UV mapping found for mesh \"%s\"", sid.c_str());
}
hasFlat = !flatNormals.empty();
if (!hasFlat) {
Log::trace(TAG, "no Flat normal mapping found for mesh \"%s\"", sid.c_str());
}
// generates normals
std::vector<glm::vec3> smoothNormals;
if (!hasFlat) {
generateFlatNormals(flatNormals, positions, vertexIndices);
}
generateSmoothNormals(smoothNormals, flatNormals, positions, vertexIndices, hasFlat);
hasSmooth = true; //TODO metadata
if(!hasFlat) { //TODO handle it with metadata
flatNormals.clear(); //no need from there
}
std::vector<U16> indices;
std::vector<Vertex> vertices;
// map one Vertex object to one or many VertexIndices
std::map<VertexIndices, U16> indexMap;
U16 currentVertexIndex = 0;
//create Vertex objects out of VertexIndices.
for (const VertexIndices& vi : vertexIndices) {
// if Vertex object of this indices doesn't exist already
if (indexMap.find(vi) == indexMap.end()) {
//create it & refer to it.
indexMap[vi] = currentVertexIndex;
indices.push_back(currentVertexIndex);
currentVertexIndex++;
Vertex v;
v.setPosition(positions[vi.p]);
if (hasUv) {
v.setUv(uvs[vi.uv]);
}
if (hasFlat) {
v.setFlatNormal(flatNormals[vi.fn]);
}
if (hasSmooth) {
v.setSmoothNormal(smoothNormals[vi.sn]);
}
vertices.push_back(v);
} else {
indices.push_back(indexMap[vi]);
}
}
U32 vertexSize = 0;
U32 vertexCount = (U32) vertices.size();
//Positions
VertexElement positionElement(VertexElement::Semantic::POSITION, 3, GL_FLOAT, vertexSize);
vertexSize += positionElement.getSizeInByte();
mesh->addVertexElement(positionElement);
//Normals
if (hasFlat) {
VertexElement flatNormalElement(VertexElement::Semantic::FLAT_NORMAL, 3, GL_FLOAT, vertexSize);
vertexSize += flatNormalElement.getSizeInByte();
mesh->addVertexElement(flatNormalElement);
}
if (hasSmooth) {
VertexElement smoothNormalElement(VertexElement::Semantic::SMOOTH_NORMAL, 3, GL_FLOAT, vertexSize);
vertexSize += smoothNormalElement.getSizeInByte();
mesh->addVertexElement(smoothNormalElement);
}
// UVs
if (hasUv) {
VertexElement uvElement(VertexElement::Semantic::UV, 2, GL_FLOAT, vertexSize);
vertexSize += uvElement.getSizeInByte();
mesh->addVertexElement(uvElement);
}
mesh->mVertexSize = vertexSize;
mesh->mVertexCount = vertexCount;
//Log::debug(TAG, "vertexSize=%d vertexCount=%d", vertexSize, vertexCount);
//Log::debug(TAG, "indices=%d", indices.size());
BYTE* data = new BYTE[vertexSize * vertexCount];
/////////////////////////////////////////////////////////////////////////
// Generate vertex buffer
//.........这里部分代码省略.........