The basic requirement of the loader was to read in an .obj file, and turn it into something useful for use with WebGL. In order to do this, I wanted to write a PHP backend that could parse the information into JSON.
Also, I chose to format the dataset into Triangles, with no merged verts so I could tell GL to draw in GL_TRIANGLE mode with no worries.
The current version of the loader allows three lines to be called in order to output a .js version of the geometry:
$objLoader = new ObjLoader("geo/test.obj");
$objLoader->unpackForGl();
$objLoader->writeUnpackedToJson("geo/test.obj.js");
These lines will output a file in the following format.
var vertices = [ -0.500000,-0.500000,0.500000, 0.500000,-0.500000,0.500000, -0.500000,0.500000,0.500000 ] var texCoords = [ -0.500000,-0.500000,0.500000, 0.500000,-0.500000,0.500000, -0.500000,0.500000,0.500000 ] var normals = [ -0.500000,-0.500000,0.500000, 0.500000,-0.500000,0.500000, -0.500000,0.500000,0.500000 ]
Now when setting up my buffers, I can simply include the script in the <head> tag and refer to these values to send on for shading.
I have begun to learn WebGL using the tutorials at http://learningwebgl.com/blog/?p=28
So to test this loader, I used the first tutorial (with some tweaks) and have rendered an obj successfully.
You're a sick sick man. But awesome none the less.
ReplyDeleteThanks dude ;)
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