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Cycles OSL: diffuse_toon and specular_toon closures. These are toon shaders with

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a size parameter between 0.0 and 1.0 that gives a angle of reflection between
0° and 90°, and a smooth parameter that gives and angle over which a smooth
transition from full to no reflection happens.

These work with global illumination and do importance sampling of the area within
the angle. Note that unlike most other BSDF's these are not energy conserving in
general, in particular if their weight is 1.0 and size > 2/3 (or 60°) they will
add more energy in each bounce.

Diffuse: http://www.pasteall.org/pic/show.php?id=42119
Specular: http://www.pasteall.org/pic/show.php?id=42120
This commit is contained in:
Brecht Van Lommel
2012-12-19 21:17:16 +00:00
parent 8d4c61a2ab
commit 54729df020
11 changed files with 489 additions and 73 deletions
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4
intern/cycles/kernel/shaders/stdosl.h
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@@ -433,8 +433,10 @@ string concat (string a, string b, string c, string d, string e, string f) {
closure color diffuse(normal N) BUILTIN;
closure color oren_nayar(normal N, float sigma) BUILTIN;
closure color phong_ramp(normal N, float exponent, color colors[8]) BUILTIN;
closure color diffuse_ramp(normal N, color colors[8]) BUILTIN;
closure color phong_ramp(normal N, float exponent, color colors[8]) BUILTIN;
closure color diffuse_toon(normal N, float size, float smooth) BUILTIN;
closure color specular_toon(normal N, float size, float smooth) BUILTIN;
closure color translucent(normal N) BUILTIN;
closure color reflection(normal N) BUILTIN;
closure color refraction(normal N, float eta) BUILTIN;