diff options
Diffstat (limited to 'intern/cycles/kernel/geom/triangle.h')
| -rw-r--r-- | intern/cycles/kernel/geom/triangle.h | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/intern/cycles/kernel/geom/triangle.h b/intern/cycles/kernel/geom/triangle.h index 788bfaca7cf..6b9450d59ef 100644 --- a/intern/cycles/kernel/geom/triangle.h +++ b/intern/cycles/kernel/geom/triangle.h @@ -45,8 +45,8 @@ ccl_device_inline void triangle_point_normal(KernelGlobals kg, float3 v1 = kernel_data_fetch(tri_verts, tri_vindex.w + 1); float3 v2 = kernel_data_fetch(tri_verts, tri_vindex.w + 2); /* compute point */ - float t = 1.0f - u - v; - *P = (u * v0 + v * v1 + t * v2); + float w = 1.0f - u - v; + *P = (w * v0 + u * v1 + v * v2); /* get object flags */ int object_flag = kernel_data_fetch(object_flag, object); /* compute normal */ @@ -97,7 +97,7 @@ triangle_smooth_normal(KernelGlobals kg, float3 Ng, int prim, float u, float v) float3 n1 = kernel_data_fetch(tri_vnormal, tri_vindex.y); float3 n2 = kernel_data_fetch(tri_vnormal, tri_vindex.z); - float3 N = safe_normalize((1.0f - u - v) * n2 + u * n0 + v * n1); + float3 N = safe_normalize((1.0f - u - v) * n0 + u * n1 + v * n2); return is_zero(N) ? Ng : N; } @@ -118,7 +118,7 @@ ccl_device_inline float3 triangle_smooth_normal_unnormalized( object_inverse_normal_transform(kg, sd, &n2); } - float3 N = (1.0f - u - v) * n2 + u * n0 + v * n1; + float3 N = (1.0f - u - v) * n0 + u * n1 + v * n2; return is_zero(N) ? Ng : N; } @@ -137,8 +137,8 @@ ccl_device_inline void triangle_dPdudv(KernelGlobals kg, const float3 p2 = kernel_data_fetch(tri_verts, tri_vindex.w + 2); /* compute derivatives of P w.r.t. uv */ - *dPdu = (p0 - p2); - *dPdv = (p1 - p2); + *dPdu = (p1 - p0); + *dPdv = (p2 - p0); } /* Reading attributes on various triangle elements */ @@ -167,12 +167,12 @@ ccl_device float triangle_attribute_float(KernelGlobals kg, #ifdef __RAY_DIFFERENTIALS__ if (dx) - *dx = sd->du.dx * f0 + sd->dv.dx * f1 - (sd->du.dx + sd->dv.dx) * f2; + *dx = sd->du.dx * f1 + sd->dv.dx * f2 - (sd->du.dx + sd->dv.dx) * f0; if (dy) - *dy = sd->du.dy * f0 + sd->dv.dy * f1 - (sd->du.dy + sd->dv.dy) * f2; + *dy = sd->du.dy * f1 + sd->dv.dy * f2 - (sd->du.dy + sd->dv.dy) * f0; #endif - return sd->u * f0 + sd->v * f1 + (1.0f - sd->u - sd->v) * f2; + return sd->u * f1 + sd->v * f2 + (1.0f - sd->u - sd->v) * f0; } else { #ifdef __RAY_DIFFERENTIALS__ @@ -217,12 +217,12 @@ ccl_device float2 triangle_attribute_float2(KernelGlobals kg, #ifdef __RAY_DIFFERENTIALS__ if (dx) - *dx = sd->du.dx * f0 + sd->dv.dx * f1 - (sd->du.dx + sd->dv.dx) * f2; + *dx = sd->du.dx * f1 + sd->dv.dx * f2 - (sd->du.dx + sd->dv.dx) * f0; if (dy) - *dy = sd->du.dy * f0 + sd->dv.dy * f1 - (sd->du.dy + sd->dv.dy) * f2; + *dy = sd->du.dy * f1 + sd->dv.dy * f2 - (sd->du.dy + sd->dv.dy) * f0; #endif - return sd->u * f0 + sd->v * f1 + (1.0f - sd->u - sd->v) * f2; + return sd->u * f1 + sd->v * f2 + (1.0f - sd->u - sd->v) * f0; } else { #ifdef __RAY_DIFFERENTIALS__ @@ -267,12 +267,12 @@ ccl_device float3 triangle_attribute_float3(KernelGlobals kg, #ifdef __RAY_DIFFERENTIALS__ if (dx) - *dx = sd->du.dx * f0 + sd->dv.dx * f1 - (sd->du.dx + sd->dv.dx) * f2; + *dx = sd->du.dx * f1 + sd->dv.dx * f2 - (sd->du.dx + sd->dv.dx) * f0; if (dy) - *dy = sd->du.dy * f0 + sd->dv.dy * f1 - (sd->du.dy + sd->dv.dy) * f2; + *dy = sd->du.dy * f1 + sd->dv.dy * f2 - (sd->du.dy + sd->dv.dy) * f0; #endif - return sd->u * f0 + sd->v * f1 + (1.0f - sd->u - sd->v) * f2; + return sd->u * f1 + sd->v * f2 + (1.0f - sd->u - sd->v) * f0; } else { #ifdef __RAY_DIFFERENTIALS__ @@ -328,12 +328,12 @@ ccl_device float4 triangle_attribute_float4(KernelGlobals kg, #ifdef __RAY_DIFFERENTIALS__ if (dx) - *dx = sd->du.dx * f0 + sd->dv.dx * f1 - (sd->du.dx + sd->dv.dx) * f2; + *dx = sd->du.dx * f1 + sd->dv.dx * f2 - (sd->du.dx + sd->dv.dx) * f0; if (dy) - *dy = sd->du.dy * f0 + sd->dv.dy * f1 - (sd->du.dy + sd->dv.dy) * f2; + *dy = sd->du.dy * f1 + sd->dv.dy * f2 - (sd->du.dy + sd->dv.dy) * f0; #endif - return sd->u * f0 + sd->v * f1 + (1.0f - sd->u - sd->v) * f2; + return sd->u * f1 + sd->v * f2 + (1.0f - sd->u - sd->v) * f0; } else { #ifdef __RAY_DIFFERENTIALS__ |