diff options
| -rw-r--r-- | intern/cycles/kernel/geom/geom_curve.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/intern/cycles/kernel/geom/geom_curve.h b/intern/cycles/kernel/geom/geom_curve.h index 863836ffcea..c4e9e2ababe 100644 --- a/intern/cycles/kernel/geom/geom_curve.h +++ b/intern/cycles/kernel/geom/geom_curve.h @@ -936,9 +936,10 @@ ccl_device_inline float3 bvh_curve_refine(KernelGlobals *kg, ShaderData *sd, con sd->u = isect->u; sd->v = 0.0f; #endif - + + tg = normalize(curvetangent(isect->u, p[0], p[1], p[2], p[3])); + if(kernel_data.curve.curveflags & CURVE_KN_RIBBONS) { - tg = normalize(curvetangent(isect->u, p[0], p[1], p[2], p[3])); sd->Ng = normalize(-(D - tg * (dot(tg, D)))); } else { @@ -950,7 +951,6 @@ ccl_device_inline float3 bvh_curve_refine(KernelGlobals *kg, ShaderData *sd, con float gd = isect->v; if(gd != 0.0f) { - tg = normalize(curvetangent(isect->u, p[0], p[1], p[2], p[3])); sd->Ng = sd->Ng - gd * tg; sd->Ng = normalize(sd->Ng); } |