7 lines
199 B
GLSL
7 lines
199 B
GLSL
|
/**
|
||
|
|
* Compute the Signed Distance Function (SDF)
|
||
|
|
* of a sphere.
|
||
|
|
*/
|
||
|
|
float SphereSDF(vec3 ray_position, vec3 sphere_position, float radius){
|
||
|
|
return(length(ray_position - sphere_position)-radius);
|
||
|
|
}
|