AI_Assistant/grid-apps-cmms
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add z down shader filter

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This commit is contained in:
Stewart Allen 2026-01-07 00:41:47 -05:00
commit da6561093f
2 changed files with 36 additions and 16 deletions
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50
src/kiri/app/paint.js
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@ -118,6 +118,8 @@ function addPaintOverlaySimple(material, paintPoints, paintColor = new THREE.Col
` `
); );
// Don't pass normals from vertex shader at all - we'll use fragment shader's normal
shader.vertexShader = ` shader.vertexShader = `
varying vec3 vWorldPosition; varying vec3 vWorldPosition;
` + shader.vertexShader; ` + shader.vertexShader;
@ -135,10 +137,17 @@ function addPaintOverlaySimple(material, paintPoints, paintColor = new THREE.Col
` `
#include <dithering_fragment> #include <dithering_fragment>
// Check if this fragment is within any paint sphere // Compute world-space normal from position derivatives
bool painted = false; vec3 posDx = dFdx(vWorldPosition);
vec3 posDy = dFdy(vWorldPosition);
vec3 worldNormal = normalize(cross(posDx, posDy));
for (int i = 0; i < 256; i++) { // HARDCODED TEST: only paint if normal.z < 0 (downward facing)
if (worldNormal.z < 0.0) {
// Check if this fragment is within any paint sphere
bool painted = false;
for (int i = 0; i < 256; i++) {
if (i >= paintCount) break; if (i >= paintCount) break;
vec3 center = paintPoints[i].xyz; vec3 center = paintPoints[i].xyz;
@ -151,10 +160,11 @@ function addPaintOverlaySimple(material, paintPoints, paintColor = new THREE.Col
} }
} }
if (painted) { if (painted) {
// Blend paint color with existing fragment color (increased to 0.7 for visibility) // Blend paint color with existing fragment color (increased to 0.7 for visibility)
gl_FragColor.rgb = mix(gl_FragColor.rgb, paintColor, 0.7); gl_FragColor.rgb = mix(gl_FragColor.rgb, paintColor, 0.7);
} }
} // End normal check
// DEBUG: Uncomment to tint entire mesh when shader is active (proves shader is running) // DEBUG: Uncomment to tint entire mesh when shader is active (proves shader is running)
// if (paintCount > 0) { // if (paintCount > 0) {
@ -245,6 +255,8 @@ function addPaintOverlayTexture(material, paintPoints, paintColor = new THREE.Co
` `
); );
// Don't pass normals from vertex shader at all - we'll use fragment shader's normal
shader.vertexShader = ` shader.vertexShader = `
varying vec3 vWorldPosition; varying vec3 vWorldPosition;
` + shader.vertexShader; ` + shader.vertexShader;
@ -263,11 +275,18 @@ function addPaintOverlayTexture(material, paintPoints, paintColor = new THREE.Co
` `
#include <dithering_fragment> #include <dithering_fragment>
bool painted = false; // Compute world-space normal from position derivatives
vec3 posDx = dFdx(vWorldPosition);
vec3 posDy = dFdy(vWorldPosition);
vec3 worldNormal = normalize(cross(posDx, posDy));
// Iterate through paint points stored in texture // HARDCODED TEST: only paint if normal.z < 0 (downward facing)
// Loop limit must be constant, but we break early when i >= paintCount if (worldNormal.z < 0.0) {
for (int i = 0; i < 10000; i++) { bool painted = false;
// Iterate through paint points stored in texture
// Loop limit must be constant, but we break early when i >= paintCount
for (int i = 0; i < 10000; i++) {
if (i >= paintCount) break; if (i >= paintCount) break;
// Calculate texture coordinates for this point index // Calculate texture coordinates for this point index
@ -289,10 +308,11 @@ function addPaintOverlayTexture(material, paintPoints, paintColor = new THREE.Co
} }
} }
if (painted) { if (painted) {
// Blend paint color with existing fragment color (increased to 0.7 for visibility) // Blend paint color with existing fragment color (increased to 0.7 for visibility)
gl_FragColor.rgb = mix(gl_FragColor.rgb, paintColor, 0.7); gl_FragColor.rgb = mix(gl_FragColor.rgb, paintColor, 0.7);
} }
} // End normal check
// DEBUG: Uncomment to tint entire mesh when shader is active (proves shader is running) // DEBUG: Uncomment to tint entire mesh when shader is active (proves shader is running)
// if (paintCount > 0) { // if (paintCount > 0) {

2
src/kiri/mode/fdm/init-menu.js
View file

@ -130,7 +130,7 @@ export function menu() {
separator: newBlank({ class:"set-sep", driven }), separator: newBlank({ class:"set-sep", driven }),
// sliceSupportTree: newBoolean(LANG.sp_tree_s, onBooleanClick, {title:LANG.sp_tree_s, trigger, show:isNotBelt}), // sliceSupportTree: newBoolean(LANG.sp_tree_s, onBooleanClick, {title:LANG.sp_tree_s, trigger, show:isNotBelt}),
// sliceSupportEnable: newBoolean(LANG.sp_auto_s, onBooleanClick, {title:LANG.sp_auto_l, show:isNotBelt}), // sliceSupportEnable: newBoolean(LANG.sp_auto_s, onBooleanClick, {title:LANG.sp_auto_l, show:isNotBelt}),
sliceSupportOutline: newBoolean(LANG.sp_outl_s, onBooleanClick, {title:LANG.sp_outl_l, show: () => !isTree() }), sliceSupportOutline: newBoolean(LANG.sp_outl_s, onBooleanClick, {title:LANG.sp_outl_l, xshow: () => !isTree() }),
separator: newBlank({ class:"set-sep", driven, show:manualSupport }), separator: newBlank({ class:"set-sep", driven, show:manualSupport }),
// sliceSupportGen: newRow([ // sliceSupportGen: newRow([
// ui.ssaGen = newButton(LANG.sp_detect, onButtonClick, {class: "f-col grow a-center"}) // ui.ssaGen = newButton(LANG.sp_detect, onButtonClick, {class: "f-col grow a-center"})