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ignoring invalid normals and uvs indices instead of canceling the import completely

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This commit is contained in:
Vitaly Ovchinnikov
2019-02-27 12:15:03 +13:00
parent d5a0a21f8c
commit 7b01ff6b8d
2 changed files with 44 additions and 9 deletions
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39
code/ObjFileImporter.cpp
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@@ -447,6 +447,7 @@ void ObjFileImporter::createVertexArray(const ObjFile::Model* pModel,
}
// Copy vertices, normals and textures into aiMesh instance
bool normalsok = true, uvok = true;
unsigned int newIndex = 0, outIndex = 0;
for ( size_t index=0; index < pObjMesh->m_Faces.size(); index++ ) {
// Get source face
@@ -466,12 +467,16 @@ void ObjFileImporter::createVertexArray(const ObjFile::Model* pModel,
pMesh->mVertices[ newIndex ] = pModel->m_Vertices[ vertex ];
// Copy all normals
if ( !pModel->m_Normals.empty() && vertexIndex < pSourceFace->m_normals.size()) {
if ( normalsok && !pModel->m_Normals.empty() && vertexIndex < pSourceFace->m_normals.size()) {
const unsigned int normal = pSourceFace->m_normals.at( vertexIndex );
if ( normal >= pModel->m_Normals.size() ) {
throw DeadlyImportError( "OBJ: vertex normal index out of range" );
if ( normal >= pModel->m_Normals.size() )
{
normalsok = false;
}
else
{
pMesh->mNormals[ newIndex ] = pModel->m_Normals[ normal ];
}
pMesh->mNormals[ newIndex ] = pModel->m_Normals[ normal ];
}
// Copy all vertex colors
@@ -482,15 +487,19 @@ void ObjFileImporter::createVertexArray(const ObjFile::Model* pModel,
}
// Copy all texture coordinates
if ( !pModel->m_TextureCoord.empty() && vertexIndex < pSourceFace->m_texturCoords.size())
if ( uvok && !pModel->m_TextureCoord.empty() && vertexIndex < pSourceFace->m_texturCoords.size())
{
const unsigned int tex = pSourceFace->m_texturCoords.at( vertexIndex );
if ( tex >= pModel->m_TextureCoord.size() )
throw DeadlyImportError("OBJ: texture coordinate index out of range");
const aiVector3D &coord3d = pModel->m_TextureCoord[ tex ];
pMesh->mTextureCoords[ 0 ][ newIndex ] = aiVector3D( coord3d.x, coord3d.y, coord3d.z );
{
uvok = false;
}
else
{
const aiVector3D &coord3d = pModel->m_TextureCoord[ tex ];
pMesh->mTextureCoords[ 0 ][ newIndex ] = aiVector3D( coord3d.x, coord3d.y, coord3d.z );
}
}
// Get destination face
@@ -534,6 +543,18 @@ void ObjFileImporter::createVertexArray(const ObjFile::Model* pModel,
++newIndex;
}
}
if (!normalsok)
{
delete [] pMesh->mNormals;
pMesh->mNormals = nullptr;
}
if (!uvok)
{
delete [] pMesh->mTextureCoords[0];
pMesh->mTextureCoords[0] = nullptr;
}
}
// ------------------------------------------------------------------------------------------------