diff options
Diffstat (limited to 'intern/cycles/kernel/geom/geom_triangle.h')
-rw-r--r-- | intern/cycles/kernel/geom/geom_triangle.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/intern/cycles/kernel/geom/geom_triangle.h b/intern/cycles/kernel/geom/geom_triangle.h index 1e7fbd9c7fb..ff7909ca425 100644 --- a/intern/cycles/kernel/geom/geom_triangle.h +++ b/intern/cycles/kernel/geom/geom_triangle.h @@ -107,8 +107,8 @@ triangle_smooth_normal(KernelGlobals *kg, float3 Ng, int prim, float u, float v) return is_zero(N) ? Ng : N; } -ccl_device_inline float3 -triangle_smooth_normal_unnormalized(KernelGlobals *kg, float3 Ng, int prim, float u, float v) +ccl_device_inline float3 triangle_smooth_normal_unnormalized( + KernelGlobals *kg, ShaderData *sd, float3 Ng, int prim, float u, float v) { /* load triangle vertices */ const uint4 tri_vindex = kernel_tex_fetch(__tri_vindex, prim); @@ -116,6 +116,13 @@ triangle_smooth_normal_unnormalized(KernelGlobals *kg, float3 Ng, int prim, floa float3 n1 = float4_to_float3(kernel_tex_fetch(__tri_vnormal, tri_vindex.y)); float3 n2 = float4_to_float3(kernel_tex_fetch(__tri_vnormal, tri_vindex.z)); + /* ensure that the normals are in object space */ + if (sd->object_flag & SD_OBJECT_TRANSFORM_APPLIED) { + object_inverse_normal_transform(kg, sd, &n0); + object_inverse_normal_transform(kg, sd, &n1); + object_inverse_normal_transform(kg, sd, &n2); + } + float3 N = (1.0f - u - v) * n2 + u * n0 + v * n1; return is_zero(N) ? Ng : N; |