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
28 lines
1.4 KiB
GLSL
28 lines
1.4 KiB
GLSL
// Depth-aware ("bilateral") upsampling of a half-size target (ambient occlusion, reflections,
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// volumetric light): the four nearest texels, each weighted by how close its depth is to this
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// pixel's, so what's behind an edge doesn't bleed onto it (a plain bilinear read leaves dark or
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// bright lines along corners and silhouettes).
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float linearDepth(float d) {
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const float n = 2.0, f = 16384.0; // the camera's near and far planes (render/renderer.cpp)
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return d >= 1.0 ? f : n * f / (f - d * (f - n));
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}
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vec4 upsampleDepthAware(uint tex, uint depthTex, ivec2 px) {
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ivec2 full = texSize(depthTex), half_ = texSize(tex);
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vec2 hp = (vec2(px) + 0.5) * vec2(half_) / vec2(full) - 0.5;
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ivec2 b = ivec2(floor(hp));
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vec2 f = hp - vec2(b);
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float z = linearDepth(fetchTex(depthTex, clamp(px, ivec2(0), full - 1)).r);
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vec4 sum = vec4(0.0);
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float wsum = 0.0;
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for (int k = 0; k < 4; ++k) {
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ivec2 o = ivec2(k & 1, k >> 1);
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ivec2 t = clamp(b + o, ivec2(0), half_ - 1);
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ivec2 tf = clamp((t * full) / half_ + (full / half_) / 2, ivec2(0), full - 1); // the full-size texel it stands for
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float zt = linearDepth(fetchTex(depthTex, tf).r);
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float bil = (o.x == 1 ? f.x : 1.0 - f.x) * (o.y == 1 ? f.y : 1.0 - f.y);
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float w = bil / (0.002 + abs(zt - z) / max(z, 1.0));
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sum += fetchTex(tex, t) * w;
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wsum += w;
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}
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return wsum > 0.0 ? sum / wsum : fetchTex(tex, clamp(b, ivec2(0), half_ - 1));
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}
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