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feat: include for glsl (#24)

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* refactor(gameplay): remove unused includes and members, clear vertex data after upload

* feat(shader-tools): add recursive #include support for shader sources

* refactor(shaders): extract noise and sky color functions into shared GLSL includes
This commit is contained in:
zhenyan121
2026-06-23 10:27:17 +08:00
committed by GitHub
parent 97993b72fe
commit d5a12869e6
11 changed files with 142 additions and 198 deletions
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74
assets/shaders/sky_f_shader.glsl
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@@ -19,84 +19,12 @@ uniform float cloudThresholdHigh;
uniform float time;
float hash(vec2 p) {
return fract(sin(dot(p, vec2(127.1, 311.7))) * 43758.5453123);
}
float noise(vec2 p) {
vec2 i = floor(p);
vec2 f = fract(p);
f = f * f * (3.0 - 2.0 * f);
float a = hash(i);
float b = hash(i + vec2(1.0, 0.0));
float c = hash(i + vec2(0.0, 1.0));
float d = hash(i + vec2(1.0, 1.0));
return mix(mix(a, b, f.x), mix(c, d, f.x), f.y);
}
float fbm(vec2 p) {
float v = 0.0;
float amp = 0.5;
for (int i = 0; i < 5; i++) {
v += amp * noise(p);
p *= 2.0;
amp *= 0.5;
}
return v;
}
vec3 computeSkyColor(vec3 dir) {
vec3 sund = normalize(sunDir);
float t =
clamp(
dir.y * 0.5 + 0.5,
0.0,
1.0
);
vec3 sky =
mix(
skyBottom,
skyTop,
pow(t, horizonSharpness)
);
// cloud
if (dir.y > 0.0) {
vec2 cloud_uv = dir.xz / (dir.y + 0.15) * 0.5 + vec2(time * 0.005, time * 0.002);
float cloud_density = fbm(cloud_uv * 2.0);
float safeLow = cloudThresholdLow;
float safeHigh = max(cloudThresholdHigh, cloudThresholdLow + 0.001);
cloud_density = smoothstep(safeLow,safeHigh, cloud_density);
float fade = smoothstep(0.0, 0.3, dir.y) * (1.0 - smoothstep(0.85, 1.0, dir.y));
cloud_density *= fade;
vec3 cloud_color = mix(skyBottom, vec3(1.0), cloudWhiteMix);
sky = mix(sky, cloud_color, cloud_density * 0.6);
}
float sunAmount = max(dot(dir, sund), 0.0);
//float glow = pow(sunAmount, 8.0) * 0.15;
float glow = pow(sunAmount, 8.0) * 0.15 + pow(sunAmount, 32.0) * 0.3;
sky += glow * sunColor;
return sky;
}
#include "compute_sky_color.glsl"
void main(void) {
vec3 sky = computeSkyColor(dir);
frag_color = vec4(sky, 1.0);
//frag_color = vec4(vec3(sunAmount), 1.0);
//frag_color = vec4(t,0,0,1);
}