The idea is that later there will be more loaders which would load different formats (like OBJLoader, ColladaLoader).
Usage (async JS):
var loader = new THREE.Loader();
loader.loadAsync( "obj/torus/Torus.js", function() { createScene( new Torus() ) } );
Usage (web worker):
var loader = new THREE.Loader();
loader.loadWorker( "obj/torus/Torus_slim.js", function( geometry ) { createScene( geometry ) } );
Web worker loader is useful for large meshes, where it allows browser to stay responsive for longer time and also it can handle larger meshes than async JS loader.
Web worker loader needs a simpler format of the model. Web workers can communicate with the main application only via message passing, where messages are JSON objects.
There is a new version of OBJ -> Three.js converter (convert_obj_threejs_slim.py) which can produce model in format needed for web workers.
All examples which were using models from OBJ converter were refactored to use Loader.
Except large mesh example, all examples are using just async JS loading. Web worker loading is there, it's just commented out, as it's a bit pain for local development.
Chrome doesn't allow to run web workers from pages accessed via file://, so you need either to run it with "--allow-file-access-from-files" flag, or access examples via local server (http://localhost/example.html).
Changed OBJ -> Three.js converter to use new materials system (eventual old models need to be reconverted).
Limitations:
- one use case is now much slower
- when a mesh has each face with different color (e.g. polyfield in examples/test.html)
- before this used FaceColorFill material and in WebGLRenderer it was rendered fast with color attribute array
- now when FaceColorFill material is gone, each face gets own VBO :(
- material sorting uses Materials "toString" methods for hashing, so it's very important to keep these in a good shape
Changed WebGLRenderer to use 3x3 normal matrix.
Limitations of WebGL lights:
- currently handles only single one of each ambient/directional/point light
- light intensity modifier not yet taken into account
- only diffuse term (this applies also in CanvasRenderer)
For decals you need to set "decalIndex" property of the material (corresponding to materials index of the original mesh UV material).
Added multimaterials example.
Fixed forgotten sphere smoothing in OBJ converter example.
Added OBJ converter test example.
Modified Three.js to handle converted models:
- extended WebGL renderer to use texturing
- broke down model into multiple VBOs according to materials
- textures are lazy created when images get loaded
(converter takes care of resizing images to nearest power of 2
dimensions using 2d canvas)
- changed material array semantics in Mesh object
- before: multiple materials were applied to all faces (broken in WebGL, needs multitexturing shader)
- now: there is only single material per face, but one mesh can have faces with different materials
- added per vertex normals (to get smooth shading in WebGL)
alteredq
unknown