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Refactor mapping modes and improve UV mapping logic; update viewer axes and camera settings

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CNCKitchen
2026-03-17 09:05:56 +01:00
parent 59b689c9ef
commit 66ee4a2d7d
7 changed files with 179 additions and 116 deletions
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js/previewMaterial.js
+6 -6
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@@ -77,16 +77,16 @@ const fragmentShader = /* glsl */`
return sampleMap((pos.yz - boundsMin.yz) / max(boundsSize.yz, vec2(1e-4)));
} else if (mappingMode == 3) {
// Cylindrical around Y (vertical axis after Z-up → Y-up rotation)
float u = atan(rel.z, rel.x) / TWO_PI + 0.5;
float v = (pos.y - boundsMin.y) / max(boundsSize.y, 1e-4);
// Cylindrical around Z axis (Z is up)
float u = atan(rel.y, rel.x) / TWO_PI + 0.5;
float v = (pos.z - boundsMin.z) / max(boundsSize.z, 1e-4);
return sampleMap(vec2(u, v));
} else if (mappingMode == 4) {
// Spherical
// Spherical — Z is up
float r = length(rel);
float phi = acos(clamp(rel.y / max(r, 1e-4), -1.0, 1.0));
float theta = atan(rel.z, rel.x);
float phi = acos(clamp(rel.z / max(r, 1e-4), -1.0, 1.0));
float theta = atan(rel.y, rel.x);
return sampleMap(vec2(theta / TWO_PI + 0.5, phi / PI));
} else if (mappingMode == 5) {