mirror of
https://github.com/Nexoniarz/Fry3DX.git
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f3e8eca87b
Shapes with live settings, shape editing, knife and hole tools, drawing shapes onto other objects, combining objects (add / subtract / overlap), copies, thickness, painting with stickers and layers, a Layout tab, a Print tab with checks, packed .fry files with autosave, export to GLB, glTF, FBX, OBJ, 3MF, STL and PLY, folders in Layers, its own crash screen, and a website for GitHub Pages in docs/. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NMSrd5oe1GpUD7E6d825KP
58 lines
3.2 KiB
GLSL
58 lines
3.2 KiB
GLSL
#version 460
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#include "backend.glsl"
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PUSH_BLOCK {
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mat4 invViewProj;
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vec4 sunDir; // xyz towards the sun
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vec4 sunColor; // rgb, w = 1 when there is a sun
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vec4 sky; // x texture, y intensity, z top level, w yaw
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vec4 weather; // x cloud cover, y the photo's own sun's height (z; 2 = none), z night, w lightning flash
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} pc;
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#include "sky.glsl"
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layout(location = 0) in vec2 v_ndc;
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layout(location = 0) out vec4 o_color;
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void main() {
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vec4 far = pc.invViewProj * vec4(v_ndc, 1.0, 1.0), near = pc.invViewProj * vec4(v_ndc, 0.0, 1.0);
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vec3 dir = normalize(far.xyz / far.w - near.xyz / near.w);
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vec3 c = skyRadiance(uint(pc.sky.x), pc.sky.y, pc.sky.w, dir, 0.0);
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// Overcast: the photo's sky greys over (a flat, brighter-low-down cloud deck).
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float cloud = pc.weather.x;
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// The photo's own sun (turned to the real sun's bearing, but at the height it was shot at):
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// when the time of day has moved the sun away from it, it's painted over with the sky beside it.
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if (pc.weather.y < 1.5 && length(pc.sunDir.xy) > 1e-3) {
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vec3 photoSun = vec3(normalize(pc.sunDir.xy) * sqrt(max(1.0 - pc.weather.y * pc.weather.y, 0.0)), pc.weather.y);
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float moved = 1.0 - smoothstep(0.9990, 0.9998, dot(normalize(pc.sunDir.xyz), photoSun));
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float near = smoothstep(0.975, 0.997, dot(dir, photoSun)) * moved;
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if (near > 0.0) { // the same height a little round to the side: clean sky like what's round it
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const float t = 0.38; // ~22°
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vec3 beside = vec3(dir.x * cos(t) - dir.y * sin(t), dir.x * sin(t) + dir.y * cos(t), dir.z);
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c = mix(c, skyRadiance(uint(pc.sky.x), pc.sky.y, pc.sky.w, beside, 1.0), near);
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}
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}
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// The photo blurred right out (its top level): no sun in it, for the cloud deck and the night.
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vec3 soft = (cloud > 0.0 || pc.weather.z > 0.0) ? skyRadiance(uint(pc.sky.x), pc.sky.y, pc.sky.w, dir, pc.sky.z) : c;
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if (cloud > 0.0) {
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float l = dot(soft, vec3(0.2126, 0.7152, 0.0722));
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vec3 deck = vec3(l) * vec3(0.92, 0.95, 1.0) * mix(1.0, 0.7, smoothstep(0.0, 0.6, dir.z));
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c = mix(c, deck, cloud);
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}
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if (pc.sunColor.w > 0.5 && cloud < 0.95) {
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// The sun itself (taken out of the photo so it matches the shadows): a disc and a glow.
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float d = dot(dir, pc.sunDir.xyz);
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c += pc.sunColor.rgb * (smoothstep(0.99995, 0.99999, d) * 60.0 + pow(max(d, 0.0), 600.0) * 1.5 + pow(max(d, 0.0), 40.0) * 0.08) * (1.0 - cloud) * (1.0 - cloud);
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}
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// Night: the photo's sky goes dark blue, and stars come out (fixed to the sky).
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float night = pc.weather.z;
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if (night > 0.0) {
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c = mix(c, vec3(0.004, 0.006, 0.014) + soft * 0.15, night);
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vec3 d = dir * 220.0;
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vec3 cell = floor(d), f = fract(d) - 0.5;
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float h = fract(sin(dot(cell, vec3(12.9898, 78.233, 37.719))) * 43758.5453);
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float star = step(0.985, h) * smoothstep(0.12, 0.0, length(f)) * smoothstep(-0.05, 0.25, dir.z);
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float bright = 0.3 + 0.7 * fract(h * 97.0); // stars of different brightness
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c += vec3(0.8, 0.85, 1.0) * star * bright * night * 0.6;
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}
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c *= 1.0 + pc.weather.w * 4.0; // lightning lights the clouds
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o_color = vec4(c, 1.0);
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}
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