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Cycles: Anisotropic BSDF enabled, with tangents now computed from the active UV map.

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It's using the Ward BSDF currently, which has some energy loss so might be a bit
dark. More/better BSDF options can be implemented later.

Patch by Mike Farnsworth, some modifications by me. Currently it's not possible yet
to set a custom tangent, that will follow as part of per-bsdf normals patch.
This commit is contained in:
Brecht Van Lommel
2012-10-10 13:02:20 +00:00
parent b4671d67ed
commit f0a9b66469
21 changed files with 198 additions and 18 deletions
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5
intern/cycles/kernel/kernel_shader.h
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@@ -93,6 +93,7 @@ __device_inline void shader_setup_from_ray(KernelGlobals *kg, ShaderData *sd,
#ifdef __DPDU__
/* dPdu/dPdv */
triangle_dPdudv(kg, &sd->dPdu, &sd->dPdv, sd->prim);
sd->T = make_float3(0.0f, 0.0f, 0.0f);
#endif
#ifdef __INSTANCING__
@@ -117,6 +118,7 @@ __device_inline void shader_setup_from_ray(KernelGlobals *kg, ShaderData *sd,
#ifdef __DPDU__
sd->dPdu = -sd->dPdu;
sd->dPdv = -sd->dPdv;
sd->T = make_float3(0.0f, 0.0f, 0.0f);
#endif
}
@@ -208,6 +210,8 @@ __device void shader_setup_from_sample(KernelGlobals *kg, ShaderData *sd,
}
#endif
}
sd->T = make_float3(0.0f, 0.0f, 0.0f);
#endif
/* backfacing test */
@@ -293,6 +297,7 @@ __device_inline void shader_setup_from_background(KernelGlobals *kg, ShaderData
/* dPdu/dPdv */
sd->dPdu = make_float3(0.0f, 0.0f, 0.0f);
sd->dPdv = make_float3(0.0f, 0.0f, 0.0f);
sd->T = make_float3(0.0f, 0.0f, 0.0f);
#endif
#ifdef __RAY_DIFFERENTIALS__