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intermediate commit

simple_math_single_header
Martin Felis 2018-03-28 14:01:35 +02:00
parent 711b6ab7fe
commit 5a0d1a91e9
1 changed files with 44 additions and 7 deletions
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51
src/modules/RenderUtils.cc
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@ -761,24 +761,61 @@ void AssetFile::LoadBuffers() {
}
}
void AssetFile::DrawMesh(const tinygltf::Mesh &mesh, const Matrix44f &matrix) {
void AssetFile::DrawMesh(const tinygltf::Mesh &mesh, const Matrix44f& matrix) {
for (int i = 0, n = mesh.primitives.size(); i < n; ++i) {
const tinygltf::Primitive& primitive = mesh.primitives[i];
if (primitive.indices < 0) {
return;
}
std::map<std::string, int>::const_iterator it(primitive.attributes.begin());
std::map<std::string, int>::const_iterator it_end(primitive.attributes.end());
for (; it != it_end; it++) {
assert(it->second >= 0);
const tinygltf::Accessor& accessor = mGLTFModel.accessors[it->second];
glBindBuffer(GL_ARRAY_BUFFER, mBuffers[accessor.bufferView]);
int size = 1;
switch(accessor.type) {
case TINYGLTF_TYPE_SCALAR: size = 1; break;
case TINYGLTF_TYPE_VEC2: size = 2; break;
case TINYGLTF_TYPE_VEC3: size = 3; break;
case TINYGLTF_TYPE_VEC4: size = 4; break;
default: assert(0); break;
}
if ((it->first.compare("POSITION") == 0)
|| (it->first.compare("NORMAL") == 0)
|| (it->first.compare("TEXCOORD_0") == 0)) {
int byte_stride = accessor.ByteStride(mGLTFModel.bufferViews[accessor.bufferView]);
assert(byte_stride != -1);
}
}
}
}
void AssetFile::DrawNode(const tinygltf::Node &node, const Matrix44f &matrix) {
void AssetFile::DrawNode(const tinygltf::Node &node, const Matrix44f& matrix) {
Matrix44f local_matrix = matrix;
if (node.matrix.size() == 16) {
Matrix44d mat44d = SimpleMath::Map<Matrix44d> (node.matrix.data(), 4, 4);
local_matrix *= mat44d
Matrix44f mat;
memcpy(mat.data(), node.matrix.data(), sizeof(float) * 4);
local_matrix *= mat;
} else {
if (node.scale.size() == 3) {
local_matrix *= ScaleMat44(node.scale[0], node.scale[1], node.scale[2]);
}
if node.rotation.size() == 4) {
if (node.rotation.size() == 4) {
local_matrix *= Quaternion(node.rotation[0], node.rotation[1], node.rotation[2], node.rotation[3]).toGLMatrix();
}
if node.translation.size() == 3) {
if (node.translation.size() == 3) {
local_matrix *= TranslateMat44(node.translation[0], node.translation[1], node.translation[2]);
}
}
@ -786,7 +823,7 @@ void AssetFile::DrawNode(const tinygltf::Node &node, const Matrix44f &matrix) {
DrawMesh (mGLTFModel.meshes[node.mesh], local_matrix);
for (int i = 0; i < node.children.size(); ++i) {
DrawNode(model.nodes[node.children[i]]);
DrawNode(mGLTFModel.nodes[node.children[i]], matrix);
}
}