diff options
Diffstat (limited to 'intern/cycles/kernel/kernel_types.h')
| -rw-r--r-- | intern/cycles/kernel/kernel_types.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/intern/cycles/kernel/kernel_types.h b/intern/cycles/kernel/kernel_types.h index b290d4c42d9..ae9b0ac6d99 100644 --- a/intern/cycles/kernel/kernel_types.h +++ b/intern/cycles/kernel/kernel_types.h @@ -447,6 +447,9 @@ typedef struct ShaderData { /* differential of P w.r.t. parametric coordinates. note that dPdu is * not readily suitable as a tangent for shading on triangles. */ float3 dPdu, dPdv; + + /* tangent for shading */ + float3 T; #endif #ifdef __MULTI_CLOSURE__ |