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Tweak lighting of glb outputs

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ochafik 2024-12-24 04:47:52 +00:00 • committed by Olivier Chafik
commit c844684c95
1 changed files with 28 additions and 12 deletions
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40
src/io/export_glb.ts
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@ -15,6 +15,8 @@ function createPrimitive(doc: Document, baseColorFactor: Color, {positions, indi
doc.createMaterial() doc.createMaterial()
.setDoubleSided(true) .setDoubleSided(true)
.setAlphaMode(baseColorFactor[3] < 1 ? 'BLEND' : 'OPAQUE') .setAlphaMode(baseColorFactor[3] < 1 ? 'BLEND' : 'OPAQUE')
.setMetallicFactor(0.0)
.setRoughnessFactor(0.8)
.setBaseColorFactor(baseColorFactor)) .setBaseColorFactor(baseColorFactor))
.setAttribute('POSITION', .setAttribute('POSITION',
doc.createAccessor() doc.createAccessor()
@ -71,23 +73,37 @@ function getGeom(data: IndexedPolyhedron): Geom {
export async function exportGlb(data: IndexedPolyhedron, defaultColor: Color = DEFAULT_FACE_COLOR): Promise<Blob> { export async function exportGlb(data: IndexedPolyhedron, defaultColor: Color = DEFAULT_FACE_COLOR): Promise<Blob> {
const doc = new Document(); const doc = new Document();
const lightExt = doc.createExtension(KHRLightsPunctual); const lightExt = doc.createExtension(KHRLightsPunctual);
const buffer = doc.createBuffer(); doc.createBuffer();
const scene = doc.createScene() const scene = doc.createScene()
.addChild(doc.createNode() .addChild(doc.createNode()
.setExtension('KHR_lights_punctual', lightExt .setExtension('KHR_lights_punctual',
.createLight() lightExt.createLight()
.setType(LightDef.Type.DIRECTIONAL) .setType(LightDef.Type.DIRECTIONAL)
.setIntensity(8.0) .setIntensity(3.0)
.setColor([1.0, 1.0, 1.0])) .setColor([1.0, 1.0, 1.0]))
.setRotation([-0.3250576, -0.3250576, 0, 0.8880739])) .setRotation([-0.3250576, -0.3250576, 0, 0.8880739]))
.addChild(doc.createNode() .addChild(doc.createNode()
.setExtension('KHR_lights_punctual', lightExt .setExtension('KHR_lights_punctual',
.createLight() lightExt.createLight()
.setType(LightDef.Type.DIRECTIONAL) .setType(LightDef.Type.DIRECTIONAL)
.setIntensity(8.0) .setIntensity(2.0)
.setColor([1.0, 1.0, 1.0])) .setColor([0.9, 0.9, 1.0]))
.setRotation([0.6279631, 0.6279631, 0, 0.4597009])); .setRotation([0.6279631, 0.6279631, 0, 0.4597009]))
.addChild(doc.createNode()
.setExtension('KHR_lights_punctual',
lightExt.createLight()
.setType(LightDef.Type.DIRECTIONAL)
.setIntensity(1.0)
.setColor([1.0, 1.0, 1.0]))
.setRotation([0.7071068, 0, 0, 0.7071068]))
.addChild(doc.createNode()
.setExtension('KHR_lights_punctual',
lightExt.createLight()
.setType(LightDef.Type.DIRECTIONAL)
.setIntensity(0.5)
.setColor([0.8, 0.8, 0.8]))
.setRotation([-0.7071068, 0, 0, 0.7071068]));
const mesh = doc.createMesh(); const mesh = doc.createMesh();