diff options
Diffstat (limited to 'intern/cycles/kernel/shaders/node_layer_weight.osl')
| -rw-r--r-- | intern/cycles/kernel/shaders/node_layer_weight.osl | 37 |
1 files changed, 18 insertions, 19 deletions
diff --git a/intern/cycles/kernel/shaders/node_layer_weight.osl b/intern/cycles/kernel/shaders/node_layer_weight.osl index f583df25773..7c46f28b41b 100644 --- a/intern/cycles/kernel/shaders/node_layer_weight.osl +++ b/intern/cycles/kernel/shaders/node_layer_weight.osl @@ -17,29 +17,28 @@ #include "stdosl.h" #include "node_fresnel.h" -shader node_layer_weight( - float Blend = 0.5, - normal Normal = N, - output float Fresnel = 0.0, - output float Facing = 0.0) +shader node_layer_weight(float Blend = 0.5, + normal Normal = N, + output float Fresnel = 0.0, + output float Facing = 0.0) { - float blend = Blend; - float cosi = dot(I, Normal); + float blend = Blend; + float cosi = dot(I, Normal); - /* Fresnel */ - float eta = max(1.0 - Blend, 1e-5); - eta = backfacing() ? eta : 1.0 / eta; - Fresnel = fresnel_dielectric_cos(cosi, eta); + /* Fresnel */ + float eta = max(1.0 - Blend, 1e-5); + eta = backfacing() ? eta : 1.0 / eta; + Fresnel = fresnel_dielectric_cos(cosi, eta); - /* Facing */ - Facing = fabs(cosi); + /* Facing */ + Facing = fabs(cosi); - if (blend != 0.5) { - blend = clamp(blend, 0.0, 1.0 - 1e-5); - blend = (blend < 0.5) ? 2.0 * blend : 0.5 / (1.0 - blend); + if (blend != 0.5) { + blend = clamp(blend, 0.0, 1.0 - 1e-5); + blend = (blend < 0.5) ? 2.0 * blend : 0.5 / (1.0 - blend); - Facing = pow(Facing, blend); - } + Facing = pow(Facing, blend); + } - Facing = 1.0 - Facing; + Facing = 1.0 - Facing; } |