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Load inside the scene graph the gltf mesh (like the obj)

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pivot is still invalid

Signed-off by: Arthur Brainville (Ybalrid) <ybalrid@ybalrid.info>
This commit is contained in:
Arthur Brainville (Ybalrid) 2018-02-20 09:35:19 +01:00 committed by Arthur Brainville
parent aad6f06208
commit 2b10d88e42
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GPG Key ID: BC05C4812A06BCF3
2 changed files with 35 additions and 17 deletions
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33
examples/raytrace/gltf-loader.cc
View File

@ -27,6 +27,11 @@ struct arrayAdapter {
/// Stride in bytes between two elements
const size_t stride;
/// Constructor.
/// Construct an array adapter.
/// \param ptr Pointer to the start of the data, with offset applied
/// \param count Number of elements in the array
/// \param byte_stride Stride betweens elements in the array
arrayAdapter(const unsigned char *ptr, size_t count, size_t byte_stride = 1)
: dataPtr(ptr), elemCount(count), stride(byte_stride) {}
@ -233,6 +238,7 @@ bool LoadGLTF(const std::string &filename, float scale,
if (indicesArrayPtr)
for (size_t i(0); i < indicesArrayPtr->size(); ++i) {
std::cout << indices[i] << " ";
loadedMesh.faces.push_back(indices[i]);
}
std::cout << '\n';
@ -263,11 +269,14 @@ bool LoadGLTF(const std::string &filename, float scale,
/// 3D vector of float
v3fArray positions(
arrayAdapter<v3f>(dataPtr, count, byte_stride));
for (size_t i{0}; i < indices.size(); ++i) {
const auto index(indices[i]);
const auto v = positions[index];
for (size_t i{0}; i < positions.size(); ++i) {
const auto v = positions[i];
std::cout << '(' << v.x << ", " << v.y << ", " << v.z
<< ")\n";
loadedMesh.vertices.push_back(v.x * scale);
loadedMesh.vertices.push_back(v.y * scale);
loadedMesh.vertices.push_back(v.z * scale);
}
} break;
default:
@ -291,11 +300,14 @@ bool LoadGLTF(const std::string &filename, float scale,
std::cout << "normal vec3\n";
v3fArray normals(
arrayAdapter<v3f>(dataPtr, count, byte_stride));
for (size_t i{0}; i < indices.size(); ++i) {
const auto index(indices[i]);
const auto v = normals[index];
for (size_t i{0}; i < normals.size(); ++i) {
const auto v = normals[i];
std::cout << '(' << v.x << ", " << v.y << ", " << v.z
<< ")\n";
loadedMesh.facevarying_normals.push_back(v.x);
loadedMesh.facevarying_normals.push_back(v.y);
loadedMesh.facevarying_normals.push_back(v.z);
}
} break;
case TINYGLTF_TYPE_VEC4:
@ -329,9 +341,12 @@ bool LoadGLTF(const std::string &filename, float scale,
std::cerr << "primitive is not triangle based, ignoring";
}
}
}
std::cerr << "LoadGLTF() function is not yet implemented!" << std::endl;
return false;
// TODO compute pivot point
meshes->push_back(loadedMesh);
ret = true;
}
// std::cerr << "LoadGLTF() function is not yet implemented!" << std::endl;
return ret;
}
} // namespace example

19
examples/raytrace/main.cc
View File

@ -744,6 +744,17 @@ int main(int argc, char **argv) {
<< " ]" << std::endl;
return -1;
}
if (!gRenderConfig.gltf_filename.empty()) {
std::cout << "Found gltf file : " << gRenderConfig.gltf_filename
<< "\n";
bool ret =
LoadGLTF(gRenderConfig.gltf_filename, gRenderConfig.scene_scale,
&meshes, &materials, &textures);
if (!ret) {
// TODO handle error
}
}
gAsset.materials = materials;
gAsset.default_material = default_material;
@ -766,14 +777,6 @@ int main(int argc, char **argv) {
}
}
if (!gRenderConfig.gltf_filename.empty()) {
std::cout << "Found gltf file : " << gRenderConfig.gltf_filename << "\n";
bool ret =
LoadGLTF(gRenderConfig.gltf_filename, gRenderConfig.scene_scale,
&meshes, &materials, &textures);
}
if (!gScene.Commit()) {
std::cerr << "Failed to commit the scene." << std::endl;
return -1;