After merging bufferGeomtery is it possible have unique material for each geomtery?

Questions
, , ,
3

Thanks!
Successfully added vertex color to each of the geometry

https://jsfiddle.net/orion_prime/xqLskny5/6/

output test on updated gltfViewer !

ver
ver1867×830 63.6 KB

snippet

const color = new THREE.Color();

	for (const mesh of allMeshes) {

		const count = mesh.geometry.attributes.position.count;
		const geometry = mesh.geometry.clone();
		geometry.setAttribute( 'color', new THREE.BufferAttribute( new Float32Array( count * 3 ), 3 ) );

		const colorAttr = geometry.attributes.color;
		color.copy(mesh.material.color)
		
		for ( let i = 0; i < count; i ++ ) {
			colorAttr.setXYZ( i, color.r, color.g, color.b );
		}
		
		geometry.applyMatrix4(mesh.matrix)
		geometries.push(geometry);
	}

	const mesh = new THREE.Mesh(THREE.BufferGeometryUtils.mergeBufferGeometries( geometries ), mergedMaterial)
	mesh.position.z= 2
	scene.add(mesh)

Now how do i do the UV method ? each geomtery’s uv points needs to be offset to a certain color of the atlas image