diff options
Diffstat (limited to 'intern/cycles/kernel/geom/geom_curve_intersect.h')
| -rw-r--r-- | intern/cycles/kernel/geom/geom_curve_intersect.h | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/intern/cycles/kernel/geom/geom_curve_intersect.h b/intern/cycles/kernel/geom/geom_curve_intersect.h index 4cfbe21685c..b6b58b52a29 100644 --- a/intern/cycles/kernel/geom/geom_curve_intersect.h +++ b/intern/cycles/kernel/geom/geom_curve_intersect.h @@ -379,7 +379,7 @@ ccl_device_forceinline bool cardinal_curve_intersect( float inv_mw_extension = 1.0f/mw_extension; if(d0 >= 0) coverage = (min(d1 * inv_mw_extension, 1.0f) - min(d0 * inv_mw_extension, 1.0f)) * 0.5f; - else // inside + else // inside coverage = (min(d1 * inv_mw_extension, 1.0f) + min(-d0 * inv_mw_extension, 1.0f)) * 0.5f; } @@ -817,16 +817,24 @@ ccl_device_inline float3 curve_refine(KernelGlobals *kg, sd->Ng = normalize(-(D - tg * (dot(tg, D)))); } else { - /* direction from inside to surface of curve */ - float3 p_curr = curvepoint(isect->u, p[0], p[1], p[2], p[3]); - sd->Ng = normalize(P - p_curr); +#ifdef __EMBREE__ + if(kernel_data.bvh.scene) { + sd->Ng = normalize(isect->Ng); + } + else +#endif + { + /* direction from inside to surface of curve */ + float3 p_curr = curvepoint(isect->u, p[0], p[1], p[2], p[3]); + sd->Ng = normalize(P - p_curr); - /* adjustment for changing radius */ - float gd = isect->v; + /* adjustment for changing radius */ + float gd = isect->v; - if(gd != 0.0f) { - sd->Ng = sd->Ng - gd * tg; - sd->Ng = normalize(sd->Ng); + if(gd != 0.0f) { + sd->Ng = sd->Ng - gd * tg; + sd->Ng = normalize(sd->Ng); + } } } |