gecko/extensions/canvas3d/test/3dtest2.html
2007-11-04 14:12:44 -08:00

103 lines
2.9 KiB
HTML

<html>
<head>
<script type="application/x-javascript">
function makeImageCanvas() {
var cvs = document.createElement('canvas');
cvs.width = 128;
cvs.height = 128;
var ctx = cvs.getContext('2d');
/*
var grad = ctx.createLinearGradient(0, 0, 128, 128);
grad.addColorStop(0.0, "rgba(200,0,0,1.0)");
grad.addColorStop(0.5, "rgba(0,200,0,1.0)");
grad.addColorStop(1.0, "rgba(0,0,200,1.0)");
ctx.fillStyle = grad;
*/
ctx.fillStyle = "red";
ctx.fillRect(0, 0, 128, 128);
return cvs;
}
function doload() {
var cvs = document.getElementById('canvas');
var gl = cvs.getContext('moz-gles11');
gl.clearColor(.2,.2,.4,1);
gl.clear(gl.COLOR_BUFFER_BIT);
// (optinally) set up lighting
if (0) {
gl.enable(gl.LIGHTING);
gl.light(gl.LIGHT0, gl.AMBIENT, [1.0, 1.0, 1.0, 1]);
gl.light(gl.LIGHT0, gl.DIFFUSE, [1.0, 1.0, 1.0, 1]);
gl.light(gl.LIGHT0, gl.POSITION, [3, 3, -5, 0]);
gl.light(gl.LIGHT0, gl.SPECULAR, [1, 1, 1, 1]);
gl.enable(gl.LIGHT0);
}
// set up our viewing parameters
gl.matrixMode(gl.PROJECTION);
gl.loadIdentity();
gl.gluPerspective(45, 1, 0.1, 20);
gl.matrixMode(gl.MODELVIEW);
gl.loadIdentity();
gl.gluLookAt(0, 0, 4,
0, 0, 0,
0, 1, 0);
// set up texture
var texId = (gl.genTextures(1))[0];
gl.bindTexture(gl.TEXTURE_2D, texId);
var img = makeImageCanvas();
gl.texParameter(gl.TEXTURE_2D, gl.GENERATE_MIPMAP, true);
gl.texImage2DHTML(gl.TEXTURE_2D, img);
gl.enable(gl.TEXTURE_2D);
// set up and draw geometry
var vertArray = [ -1, 1, 0,
-1, -1, 0,
1, 1, 0,
1, -1, 0 ];
var normArray = [ 0, 0, 1,
0, 0, 1,
0, 0, 1,
0, 0, 1 ];
var texCoordArray = [ 0, 1,
0, 0,
1, 1,
1, 0 ];
var colorArray = [ 1, 1, 1, 1,
1, 1, 1, 1,
1, 1, 1, 1,
1, 1, 1, 1 ];
gl.vertexPointer(3, gl.FLOAT, vertArray);
gl.normalPointer(gl.FLOAT, normArray);
gl.texCoordPointer(2, gl.FLOAT, texCoordArray);
gl.colorPointer(4, gl.FLOAT, colorArray);
gl.enableClientState(gl.VERTEX_ARRAY);
gl.enableClientState(gl.NORMAL_ARRAY);
gl.enableClientState(gl.TEXTURE_COORD_ARRAY);
gl.enableClientState(gl.COLOR_ARRAY);
gl.drawArrays(gl.TRIANGLE_STRIP, 0, vertArray.length / 3);
gl.disableClientState(gl.VERTEX_ARRAY);
gl.disableClientState(gl.NORMAL_ARRAY);
gl.disableClientState(gl.TEXTURE_COORD_ARRAY);
gl.disableClientState(gl.COLOR_ARRAY);
gl.swapBuffers();
}
</script>
</head>
<body onload="doload()">
<canvas id="canvas" width="400" height="400" style="border: 2px solid black;"></canvas>
</body>
</html>