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Fix T100134: Cycles faceted triangle normals with motion blur

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After recent changes to change barycentric coordinate convention.
This commit is contained in:
Brecht Van Lommel
2022-08-04 19:08:45 +02:00
parent 91d365f6df
commit 1c2c468abc
1 changed files with 3 additions and 3 deletions
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6
intern/cycles/kernel/geom/motion_triangle_shader.h
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@@ -68,8 +68,8 @@ ccl_device_noinline void motion_triangle_shader_setup(KernelGlobals kg,
sd->N = Ng;
/* Compute derivatives of P w.r.t. uv. */
#ifdef __DPDU__
sd->dPdu = (verts[0] - verts[2]);
sd->dPdv = (verts[1] - verts[2]);
sd->dPdu = (verts[1] - verts[0]);
sd->dPdv = (verts[2] - verts[0]);
#endif
/* Compute smooth normal. */
if (sd->shader & SHADER_SMOOTH_NORMAL) {
@@ -89,7 +89,7 @@ ccl_device_noinline void motion_triangle_shader_setup(KernelGlobals kg,
float u = sd->u;
float v = sd->v;
float w = 1.0f - u - v;
sd->N = (u * normals[0] + v * normals[1] + w * normals[2]);
sd->N = (w * normals[0] + u * normals[1] + v * normals[2]);
}
}