GLSL SDF function for generating a box. Determines the distance between a point and the surface of a box at the origin.
Originally sourced from Modeling with Distance Functions by Iñigo Quílez.
float box(vec3 position, vec3 dimensions)Returns the signed distanced between position and a box at the origin
with a given set of dimensions. For example, to draw a 2x2x2 box in a
raytracing shader:
#pragma glslify: box = require('glsl-sdf-box')
vec2 doModel(vec3 p) {
float dist = box(p, vec3(2.0));
float id = 1.0;
return vec2(dist, id);
}
See stackgl/contributing for details.
MIT. See LICENSE.md for details.