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Added additional mods in permute().

master
ijm 2011-03-15 18:48:11 -07:00
parent 4002aedd58
commit 5e7b0cadc7
1 changed files with 17 additions and 5 deletions
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22
noise.glsl
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@ -8,14 +8,26 @@
// Distributed under the Artistic License 2.0; See LICENCE file.
//
#undef NORMALIZE_GRADIENTS
#define NORMALIZE_GRADIENTS
#undef USE_CIRCLE
#define COLLAPSE_SORTNET
vec2 permute(vec2 x,vec3 p) { return floor(mod( (p.y*x + p.z) * x , p.x )); }
vec3 permute(vec3 x,vec3 p) { return floor(mod( (p.y*x + p.z) * x , p.x )); }
vec4 permute(vec4 x,vec3 p) { return floor(mod( (p.y*x + p.z) * x , p.x )); }
float permute(float x,vec3 p) { return floor(mod( (p.y*x + p.z) * x , p.x )); }
float permute(float x0,vec3 p) {
float x1 = mod(x0 * p.y, p.x);
return floor( mod( (x1 + p.z) *x0, p.x ));
}
vec2 permute(vec2 x0,vec3 p) {
vec2 x1 = mod(x0 * p.y, p.x);
return floor( mod( (x1 + p.z) *x0, p.x ));
}
vec3 permute(vec3 x0,vec3 p) {
vec3 x1 = mod(x0 * p.y, p.x);
return floor( mod( (x1 + p.z) *x0, p.x ));
}
vec4 permute(vec4 x0,vec3 p) {
vec4 x1 = mod(x0 * p.y, p.x);
return floor( mod( (x1 + p.z) *x0, p.x ));
}
uniform vec4 pParam;
// Example