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Faster sub-voxel noise function

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This commit is contained in:
Joshua Barretto 2020-04-20 23:25:52 +01:00
parent 628dc7c47e
commit cd925e8cea
2 changed files with 2 additions and 2 deletions
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2
assets/voxygen/shaders/include/random.glsl
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@ -33,7 +33,7 @@ float snoise(in vec4 x) {
}
vec3 rand_perm_3(vec3 pos) {
return sin(pos * vec3(1473.7 * pos.z + 472.3, 8891.1 * pos.x + 723.1, 3813.3 * pos.y + 982.5));
return abs(sin(pos * vec3(1473.7 * pos.z + 472.3, 8891.1 * pos.x + 723.1, 3813.3 * pos.y + 982.5)));
}
vec4 rand_perm_4(vec4 pos) {

2
assets/voxygen/shaders/terrain-frag.glsl
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@ -48,7 +48,7 @@ void main() {
diffuse_light *= f_light * ao;
diffuse_light += point_light * ao;
vec3 col = f_col + snoise(vec4(mod(floor(f_pos * 3.0), 100.0) * 10.0, 0)) * 0.02; // Small-scale noise
vec3 col = f_col + hash(vec4(mod(floor(f_pos * 3.0), 100.0) * 10.0, 0)) * 0.02; // Small-scale noise
vec3 surf_color = illuminate(srgb_to_linear(col), light, diffuse_light, ambient_light);
float fog_level = fog(f_pos.xyz, focus_pos.xyz, medium.x);