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Merge pull request #5015 from Sir-Irk/gltf_model_fix

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[rmodels] Fixing offset for processing tangents for GLTF/GLB loading
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Ray
2025-07-01 22:50:30 +02:00
committed by GitHub
parent 8cf932c822 bee524e5e6
commit 7f32b9a964
1 changed files with 5 additions and 5 deletions
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10
src/rmodels.c
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@@ -5577,7 +5577,7 @@ static Model LoadGLTF(const char *fileName)
}
else TRACELOG(LOG_WARNING, "MODEL: [%s] Normal attribute data format not supported, use vec3 float", fileName);
}
else if (mesh->primitives[p].attributes[j].type == cgltf_attribute_type_tangent) // TANGENT, vec3, float
else if (mesh->primitives[p].attributes[j].type == cgltf_attribute_type_tangent) // TANGENT, vec4, float, w is tangent basis sign
{
cgltf_accessor *attribute = mesh->primitives[p].attributes[j].data;
@@ -5593,10 +5593,10 @@ static Model LoadGLTF(const char *fileName)
float *tangents = model.meshes[meshIndex].tangents;
for (unsigned int k = 0; k < attribute->count; k++)
{
Vector3 tt = Vector3Transform((Vector3){ tangents[3*k], tangents[3*k+1], tangents[3*k+2] }, worldMatrix);
tangents[3*k] = tt.x;
tangents[3*k+1] = tt.y;
tangents[3*k+2] = tt.z;
Vector3 tt = Vector3Transform((Vector3){ tangents[4*k], tangents[4*k+1], tangents[4*k+2] }, worldMatrix);
tangents[4*k] = tt.x;
tangents[4*k+1] = tt.y;
tangents[4*k+2] = tt.z;
}
}
else TRACELOG(LOG_WARNING, "MODEL: [%s] Tangent attribute data format not supported, use vec4 float", fileName);