Merge pull request #5079 from zet23t/fixing-obj-loader-crash

[rmodels] Fixing OBJ loading crash when there are no normals present
This commit is contained in:
Ray
2025-08-01 08:57:55 +02:00
committed by GitHub

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@ -4473,9 +4473,17 @@ static Model LoadOBJ(const char *fileName)
for (int i = 0; i < 3; i++) model.meshes[meshIndex].vertices[localMeshVertexCount*3 + i] = objAttributes.vertices[vertIndex*3 + i];
for (int i = 0; i < 3; i++) model.meshes[meshIndex].normals[localMeshVertexCount*3 + i] = objAttributes.normals[normalIndex*3 + i];
for (int i = 0; i < 2; i++) model.meshes[meshIndex].texcoords[localMeshVertexCount*2 + i] = objAttributes.texcoords[texcordIndex*2 + i];
if (objAttributes.normals != NULL && normalIndex != TINYOBJ_INVALID_INDEX && normalIndex >= 0)
{
for (int i = 0; i < 3; i++) model.meshes[meshIndex].normals[localMeshVertexCount*3 + i] = objAttributes.normals[normalIndex*3 + i];
}
else
{
model.meshes[meshIndex].normals[localMeshVertexCount*3 + 0] = 0.0f;
model.meshes[meshIndex].normals[localMeshVertexCount*3 + 1] = 1.0f;
model.meshes[meshIndex].normals[localMeshVertexCount*3 + 2] = 0.0f;
}
model.meshes[meshIndex].texcoords[localMeshVertexCount*2 + 1] = 1.0f - model.meshes[meshIndex].texcoords[localMeshVertexCount*2 + 1];