diff options
Diffstat (limited to 'intern/cycles/kernel/shaders/node_hair_bsdf.osl')
| -rw-r--r-- | intern/cycles/kernel/shaders/node_hair_bsdf.osl | 45 |
1 files changed, 23 insertions, 22 deletions
diff --git a/intern/cycles/kernel/shaders/node_hair_bsdf.osl b/intern/cycles/kernel/shaders/node_hair_bsdf.osl index c8cb88f0c0b..ef8f2fae894 100644 --- a/intern/cycles/kernel/shaders/node_hair_bsdf.osl +++ b/intern/cycles/kernel/shaders/node_hair_bsdf.osl @@ -24,34 +24,35 @@ shader node_hair_bsdf( float Offset = 0.0, float RoughnessU = 0.1, float RoughnessV = 1.0, - normal Normal = Ng, + normal Tangent = normal(0, 0, 0), output closure color BSDF = 0) { - float IsStrand; float roughnessh = clamp(RoughnessU, 0.001, 1.0); float roughnessv = clamp(RoughnessV, 0.001, 1.0); - getattribute("geom:is_curve", IsStrand); + float offset = -Offset; - if (!IsStrand) { - if (backfacing()) { - BSDF = transparent(); - } - else { - if (component == "reflection") - BSDF = Color * hair_reflection(Normal, roughnessh, roughnessv, normalize(dPdv), 0.0); - else - BSDF = Color * hair_transmission(Normal, roughnessh, roughnessv, normalize(dPdv), 0.0); - } + normal T; + float IsCurve = 0; + getattribute("geom:is_curve", IsCurve); + + if (isconnected(Tangent)) { + T = Tangent; + } + else if(!IsCurve) { + T = normalize(dPdv); + offset = 0.0; + } + else { + T = normalize(dPdu); + } + + if (backfacing() && IsCurve) { + BSDF = transparent(); } else { - if (backfacing()) { - BSDF = transparent(); - } - else { - if (component == "reflection") - BSDF = Color * hair_reflection(Normal, roughnessh, roughnessv, dPdu, -Offset); - else - BSDF = Color * hair_transmission(Normal, roughnessh, roughnessv, dPdu, -Offset); - } + if (component == "reflection") + BSDF = Color * hair_reflection(Ng, roughnessh, roughnessv, T, offset); + else + BSDF = Color * hair_transmission(Ng, roughnessh, roughnessv, T, offset); } } |