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Merge pull request #2094 from JekaS178RUS/obj-point-cloud 

Add point cloud support for OBJ importer
pull/2089/head^2
Kim Kulling 2018-08-16 18:04:38 +02:00 committed by GitHub
parent 58bbb6a3e1 102486005d
commit 1388e0b79f
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 56 additions and 15 deletions
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55
code/ObjFileImporter.cpp
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@ -210,22 +210,63 @@ void ObjFileImporter::CreateDataFromImport(const ObjFile::Model* pModel, aiScene
ai_assert(false); ai_assert(false);
} }
if (pModel->m_Objects.size() > 0) {
// Create nodes for the whole scene // Create nodes for the whole scene
std::vector<aiMesh*> MeshArray; std::vector<aiMesh*> MeshArray;
for (size_t index = 0; index < pModel->m_Objects.size(); ++index ) { for (size_t index = 0; index < pModel->m_Objects.size(); ++index) {
createNodes(pModel, pModel->m_Objects[ index ], pScene->mRootNode, pScene, MeshArray); createNodes(pModel, pModel->m_Objects[index], pScene->mRootNode, pScene, MeshArray);
} }
// Create mesh pointer buffer for this scene // Create mesh pointer buffer for this scene
if (pScene->mNumMeshes > 0) { if (pScene->mNumMeshes > 0) {
pScene->mMeshes = new aiMesh*[ MeshArray.size() ]; pScene->mMeshes = new aiMesh*[MeshArray.size()];
for (size_t index =0; index < MeshArray.size(); ++index ) { for (size_t index = 0; index < MeshArray.size(); ++index) {
pScene->mMeshes[ index ] = MeshArray[ index ]; pScene->mMeshes[index] = MeshArray[index];
} }
} }
// Create all materials // Create all materials
createMaterials( pModel, pScene ); createMaterials(pModel, pScene);
}else {
if (pModel->m_Vertices.empty()){
return;
}
std::unique_ptr<aiMesh> mesh( new aiMesh );
mesh->mPrimitiveTypes = aiPrimitiveType_POINT;
unsigned int n = pModel->m_Vertices.size();
mesh->mNumVertices = n;
mesh->mVertices = new aiVector3D[n];
memcpy(mesh->mVertices, pModel->m_Vertices.data(), n*sizeof(aiVector3D) );
if ( !pModel->m_Normals.empty() ) {
mesh->mNormals = new aiVector3D[n];
if (pModel->m_Normals.size() < n) {
throw DeadlyImportError("OBJ: vertex normal index out of range");
}
memcpy(mesh->mNormals, pModel->m_Normals.data(), n*sizeof(aiVector3D));
}
if ( !pModel->m_VertexColors.empty() ){
mesh->mColors[0] = new aiColor4D[mesh->mNumVertices];
for (unsigned int i = 0; i < n; ++i) {
if (i < pModel->m_VertexColors.size() ) {
const aiVector3D& color = pModel->m_VertexColors[i];
mesh->mColors[0][i] = aiColor4D(color.x, color.y, color.z, 1.0);
}else {
throw DeadlyImportError("OBJ: vertex color index out of range");
}
}
}
pScene->mRootNode->mNumMeshes = 1;
pScene->mRootNode->mMeshes = new unsigned int[1];
pScene->mRootNode->mMeshes[0] = 0;
pScene->mMeshes = new aiMesh*[1];
pScene->mNumMeshes = 1;
pScene->mMeshes[0] = mesh.release();
}
} }
// ------------------------------------------------------------------------------------------------ // ------------------------------------------------------------------------------------------------
@ -452,7 +493,7 @@ void ObjFileImporter::createVertexArray(const ObjFile::Model* pModel,
// Copy all vertex colors // Copy all vertex colors
if ( !pModel->m_VertexColors.empty()) if ( !pModel->m_VertexColors.empty())
{ {
const aiVector3D color = pModel->m_VertexColors[ vertex ]; const aiVector3D& color = pModel->m_VertexColors[ vertex ];
pMesh->mColors[0][ newIndex ] = aiColor4D(color.x, color.y, color.z, 1.0); pMesh->mColors[0][ newIndex ] = aiColor4D(color.x, color.y, color.z, 1.0);
} }