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infinite repeat operation

master
EmaMaker 2023-02-02 15:07:27 +01:00
parent c4050461e5
commit 8979a8a5f2
1 changed files with 6 additions and 4 deletions
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10
shaders/shader.fs
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@ -81,6 +81,9 @@ phong opDifference( phong d1, phong d2 ) {
else return d2;
}
vec3 opInfiniteRepeat(vec3 pos, vec3 replength){
return mod(pos+replength*0.5, replength) - replength*0.5;
}
//works well if bounding box of object < replength
//reps is the number of times the pattern gets repeated on each axis in each direction (e.g. 1 -> 1 up and 1 down)
vec3 opFiniteRepeat(vec3 pos, vec3 start, vec3 reps, vec3 replength){
@ -110,14 +113,13 @@ vec3 rl = vec3(4.0, 2.0, 4.0);
phong sdfScene(in vec3 p){
return opUnion(
opSmoothUnion(
phong(phongSphere, sdfSphere(opFiniteRepeat2(p, vec3(0.0, sin(2*u_time), 0.0), r, rl), 0.4)),
opUnion(
phong(phongSphere, sdfSphere(opInfiniteRepeat(p, 2*rl), 0.4)),
phong(phongBox1,
sdfBox(opFiniteRepeat2(p, s, r, rl),
vec3(0.5, 0.1, 0.5)
)
),
0.4
)
),
opDifference(
phong(phongSphere, sdfSphere(p-vec3(0.0, 5.0, 0.0), 0.25 + 0.25* (1+sin(u_time)))),