stlTexturizer/archived-stlTexturizer
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Refactor code structure for improved readability and maintainability

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CNCKitchen
2026-03-18 09:31:21 +01:00
parent 2c3db843a9
commit f88504696d
18 changed files with 193 additions and 303 deletions
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js/previewMaterial.js
+21 -13
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@@ -43,6 +43,7 @@ const fragmentShader = /* glsl */`
uniform vec2 scaleUV;
uniform float amplitude;
uniform vec2 offsetUV;
uniform float rotation;
uniform vec3 boundsMin;
uniform vec3 boundsSize;
uniform vec3 boundsCenter;
@@ -59,7 +60,13 @@ const fragmentShader = /* glsl */`
// Sample after applying scale + tiling
float sampleMap(vec2 rawUV) {
return texture2D(displacementMap, fract(rawUV / scaleUV + offsetUV)).r;
vec2 uv = rawUV / scaleUV + offsetUV;
// rotate around tile centre
float c = cos(rotation); float s = sin(rotation);
uv -= 0.5;
uv = vec2(c * uv.x - s * uv.y, s * uv.x + c * uv.y);
uv += 0.5;
return texture2D(displacementMap, fract(uv)).r;
}
// Height at this fragment for all projection modes.
@@ -68,15 +75,17 @@ const fragmentShader = /* glsl */`
vec3 pos = vModelPos;
vec3 MN = vModelNormal; // model-space normal
vec3 rel = pos - boundsCenter;
float maxDim = max(boundsSize.x, max(boundsSize.y, boundsSize.z));
float md = max(maxDim, 1e-4);
if (mappingMode == 0) {
return sampleMap((pos.xy - boundsMin.xy) / max(boundsSize.xy, vec2(1e-4)));
return sampleMap(vec2((pos.x - boundsMin.x) / md, (pos.y - boundsMin.y) / md));
} else if (mappingMode == 1) {
return sampleMap((pos.xz - boundsMin.xz) / max(boundsSize.xz, vec2(1e-4)));
return sampleMap(vec2((pos.x - boundsMin.x) / md, (pos.z - boundsMin.z) / md));
} else if (mappingMode == 2) {
return sampleMap((pos.yz - boundsMin.yz) / max(boundsSize.yz, vec2(1e-4)));
return sampleMap(vec2((pos.y - boundsMin.y) / md, (pos.z - boundsMin.z) / md));
} else if (mappingMode == 3) {
// Cylindrical around Z axis (Z is up) with automatic caps.
@@ -114,9 +123,9 @@ const fragmentShader = /* glsl */`
blend = pow(blend, vec3(4.0));
blend /= dot(blend, vec3(1.0)) + 1e-4;
float hXY = sampleMap((pos.xy - boundsMin.xy) / max(boundsSize.xy, vec2(1e-4)));
float hXZ = sampleMap((pos.xz - boundsMin.xz) / max(boundsSize.xz, vec2(1e-4)));
float hYZ = sampleMap((pos.yz - boundsMin.yz) / max(boundsSize.yz, vec2(1e-4)));
float hXY = sampleMap(vec2((pos.x - boundsMin.x) / md, (pos.y - boundsMin.y) / md));
float hXZ = sampleMap(vec2((pos.x - boundsMin.x) / md, (pos.z - boundsMin.z) / md));
float hYZ = sampleMap(vec2((pos.y - boundsMin.y) / md, (pos.z - boundsMin.z) / md));
return hXY * blend.z + hXZ * blend.y + hYZ * blend.x;
@@ -125,14 +134,11 @@ const fragmentShader = /* glsl */`
// Picks the single planar projection whose axis is most aligned with the face normal.
vec3 absN = abs(MN);
if (absN.x >= absN.y && absN.x >= absN.z) {
// ±X dominant → project onto ZY plane (U=Z, V=Y keeps texture upright on side faces)
return sampleMap((pos.zy - boundsMin.zy) / max(boundsSize.zy, vec2(1e-4)));
return sampleMap(vec2((pos.z - boundsMin.z) / md, (pos.y - boundsMin.y) / md));
} else if (absN.y >= absN.x && absN.y >= absN.z) {
// ±Y dominant → project onto XZ plane
return sampleMap((pos.xz - boundsMin.xz) / max(boundsSize.xz, vec2(1e-4)));
return sampleMap(vec2((pos.x - boundsMin.x) / md, (pos.z - boundsMin.z) / md));
} else {
// ±Z dominant → project onto XY plane
return sampleMap((pos.xy - boundsMin.xy) / max(boundsSize.xy, vec2(1e-4)));
return sampleMap(vec2((pos.x - boundsMin.x) / md, (pos.y - boundsMin.y) / md));
}
}
}
@@ -229,6 +235,7 @@ export function updateMaterial(material, displacementTexture, settings) {
u.scaleUV.value.set(settings.scaleU, settings.scaleV);
u.amplitude.value = settings.amplitude;
u.offsetUV.value.set(settings.offsetU, settings.offsetV);
u.rotation.value = (settings.rotation ?? 0) * Math.PI / 180;
if (settings.bounds) {
u.boundsMin.value.copy(settings.bounds.min);
u.boundsSize.value.copy(settings.bounds.size);
@@ -252,6 +259,7 @@ function buildUniforms(tex, settings) {
scaleUV: { value: new THREE.Vector2(settings.scaleU ?? 1, settings.scaleV ?? 1) },
amplitude: { value: settings.amplitude ?? 1.0 },
offsetUV: { value: new THREE.Vector2(settings.offsetU ?? 0, settings.offsetV ?? 0) },
rotation: { value: ((settings.rotation ?? 0) * Math.PI / 180) },
boundsMin: { value: b.min.clone() },
boundsSize: { value: b.size.clone() },
boundsCenter: { value: b.center.clone() },