GitHub-Proxy/draco
1
0
Fork 0
mirror of https://git.mirrors.martin98.com/https://github.com/google/draco synced 2025-08-12 03:28:58 +08:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #45 from customlogic/uvFix

Browse Source 
Javascript loader: load texture coordinates (uvs)
This commit is contained in:
Ondrej Stava 2017-01-24 17:06:37 -08:00 committed by GitHub
commit b3d372a426
1 changed files with 31 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
javascript/example/DRACOLoader.js
View File

@ -75,7 +75,7 @@ THREE.DRACOLoader.prototype = {
/*
* Example on how to retrieve mesh and attributes.
*/
let numFaces, numPoints, numVertexCoordinates, numAttributes;
let numFaces, numPoints, numVertexCoordinates, numTextureCoordinates, numAttributes;
// For output basic geometry information.
let geometryInfoStr;
if (geometryType == DracoModule.TRIANGULAR_MESH) {
@ -87,6 +87,7 @@ THREE.DRACOLoader.prototype = {
}
numPoints = dracoGeometry.num_points();
numVertexCoordinates = numPoints * 3;
numTextureCoordinates = numPoints * 2;
numAttributes = dracoGeometry.num_attributes();
geometryInfoStr = "Number of points loaded: " + numPoints.toString()
+ ".\n";
@ -130,6 +131,18 @@ THREE.DRACOLoader.prototype = {
norAttributeData);
}
// Get texture coord attributes if exists.
const texCoordAttId =
wrapper.GetAttributeId(dracoGeometry, Module.TEX_COORD);
let textCoordAttributeData;
if (texCoordAttId != -1) {
geometryInfoStr += "\nLoaded texture coordinate attribute.\n";
const texCoordAttribute = wrapper.GetAttribute(dracoGeometry, texCoordAttId);
textCoordAttributeData = new DracoModule.DracoFloat32Array();
wrapper.GetAttributeFloatForAllPoints(dracoGeometry, texCoordAttribute,
textCoordAttributeData);
}
// Structure for converting to THREEJS geometry later.
const geometryBuffer = {
indices: [],
@ -161,12 +174,24 @@ THREE.DRACOLoader.prototype = {
norAttributeData.GetValue(i + 2));
}
}
// Add texture coordinates.
if (texCoordAttId != -1) {
for (let i = 0; i < numTextureCoordinates; i += 2) {
geometryBuffer.uvs.push(
textCoordAttributeData.GetValue(i),
textCoordAttributeData.GetValue(i + 1));
}
}
DracoModule.destroy(posAttributeData);
if (colorAttId != -1)
DracoModule.destroy(colAttributeData);
if (normalAttId != -1)
DracoModule.destroy(norAttributeData);
if (texCoordAttId != -1)
DracoModule.destroy(textCoordAttributeData);
// For mesh, we need to generate the faces.
if (geometryType == DracoModule.TRIANGULAR_MESH) {
const numIndices = numFaces * 3;
@ -198,6 +223,10 @@ THREE.DRACOLoader.prototype = {
geometry.addAttribute('normal',
new THREE.Float32BufferAttribute(geometryBuffer.normals, 3));
}
if (texCoordAttId != -1) {
geometry.addAttribute('uv',
new THREE.Float32BufferAttribute(geometryBuffer.uvs, 2));
}
return geometry;
}
};