22 lines
No EOL
816 B
GLSL
22 lines
No EOL
816 B
GLSL
#include "saturate.glsl"
|
|
|
|
/*
|
|
contributors: Patricio Gonzalez Vivo
|
|
description: bump in a range between -1 and 1
|
|
use: <float|vec3> bump(<float|vec3> x[], <float|vec3> k])
|
|
examples:
|
|
- https://raw.githubusercontent.com/patriciogonzalezvivo/lygia_examples/main/math_functions.frag
|
|
license:
|
|
- Copyright (c) 2021 Patricio Gonzalez Vivo under Prosperity License - https://prosperitylicense.com/versions/3.0.0
|
|
- Copyright (c) 2021 Patricio Gonzalez Vivo under Patron License - https://lygia.xyz/license
|
|
*/
|
|
|
|
#ifndef FNC_BUMP
|
|
#define FNC_BUMP
|
|
|
|
float bump(float x, float k){ return saturate( (1.0 - x * x) - k); }
|
|
vec3 bump(vec3 x, vec3 k){ return saturate( (1.0 - x * x) - k); }
|
|
float bump(float x) { return max(1.0 - x * x, 0.0); }
|
|
vec3 bump(vec3 x) { return max(vec3(1.,1.,1.) - x * x, vec3(0.,0.,0.)); }
|
|
|
|
#endif |