From 2bb869eb1c0b71e379f159eb0f95dfa168496d8d Mon Sep 17 00:00:00 2001 From: hwc487 Date: Wed, 22 Feb 2012 15:22:13 -0800 Subject: Runtime classes --- js/helper-classes/RDGE/runtime/GLRuntime.js | 159 ++++++++++++++++++++++++++++ 1 file changed, 159 insertions(+) create mode 100644 js/helper-classes/RDGE/runtime/GLRuntime.js (limited to 'js/helper-classes/RDGE/runtime/GLRuntime.js') diff --git a/js/helper-classes/RDGE/runtime/GLRuntime.js b/js/helper-classes/RDGE/runtime/GLRuntime.js new file mode 100644 index 00000000..5c99be02 --- /dev/null +++ b/js/helper-classes/RDGE/runtime/GLRuntime.js @@ -0,0 +1,159 @@ +/* +This file contains proprietary software owned by Motorola Mobility, Inc.
+No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.
+(c) Copyright 2011 Motorola Mobility, Inc. All Rights Reserved. + */ + + + +/////////////////////////////////////////////////////////////////////// +// Class GLRuntime +// Manages runtime fora WebGL canvas +/////////////////////////////////////////////////////////////////////// +function GLRuntime( canvas, importStr ) +{ + /////////////////////////////////////////////////////////////////////// + // Instance variables + /////////////////////////////////////////////////////////////////////// + this._canvas = canvas; + this._importStr = importStr; + + this.renderer = null; + this.myScene = null; + this.light = null; + this.light2 = null; + this._rootNode = null; + + this._firstRender = true; + + /////////////////////////////////////////////////////////////////////// + // initialization code + /////////////////////////////////////////////////////////////////////// + var id = canvas.getAttribute( "data-RDGE-id" ); + canvas.rdgeid = id; + g_Engine.registerCanvas(canvas, this); + RDGEStart( canvas ); + + this.loadScene = function() + { + // parse the data + // the GL runtime must start with a "sceneData: " + var index = importStr.indexOf( "scenedata: " ); + if (index >= 0) + { + var rdgeStr = importStr.substr( index+11 ); + var endIndex = rdgeStr.indexOf( "endscene\n" ); + if (endIndex < 0) throw new Error( "ill-formed WebGL data" ); + var len = endIndex - index + 11; + rdgeStr = rdgeStr.substr( 0, endIndex ); + + this.myScene.importJSON( rdgeStr ); + } + } + + this.init = function() + { + var ctx1 = g_Engine.ctxMan.handleToObject(this._canvas.rdgeCtxHandle), + ctx2 = g_Engine.getContext(); + if (ctx1 != ctx2) console.log( "***** different contexts *****" ); + this.renderer = ctx1.renderer; + + // create a camera, set its perspective, and then point it at the origin + var cam = new camera(); + this._camera = cam; + cam.setPerspective(this.getFOV(), this.getAspect(), this.getZNear(), this.getZFar()); + cam.setLookAt([0, 0, this.getViewDistance()], [0, 0, 0], vec3.up()); + + // make this camera the active camera + this.renderer.cameraManager().setActiveCamera(cam); + + // change clear color + this.renderer.setClearColor([1.0, 1.0, 1.0, 0.0]); + + // create an empty scene graph + this.myScene = new SceneGraph(); + this.loadScene(); + + /* + // create some lights + // light 1 + this.light = createLightNode("myLight"); + this.light.setPosition([0,0,1.2]); + this.light.setDiffuseColor([0.75,0.9,1.0,1.0]); + + // light 2 + this.light2 = createLightNode("myLight2"); + this.light2.setPosition([-0.5,0,1.2]); + this.light2.setDiffuseColor([1.0,0.9,0.75,1.0]); + + // create a light transform + var lightTr = createTransformNode("lightTr"); + + // create and attach a material - materials hold the light data + lightTr.attachMaterial(createMaterialNode("lights")); + + // enable light channels 1, 2 - channel 0 is used by the default shader + lightTr.materialNode.enableLightChannel(1, this.light); + lightTr.materialNode.enableLightChannel(2, this.light2); + + // all added objects are parented to the light node + this._rootNode = lightTr; + + // add the light node to the scene + this.myScene.addNode(lightTr); + */ + + // load the scene graph data + + // Add the scene to the engine - necessary if you want the engine to draw for you + var name = "myScene" + this._canvas.getAttribute( "data-RDGE-id" ); + g_Engine.AddScene(name, this.myScene); + } + + // main code for handling user interaction and updating the scene + this.update = function(dt) + { + if (!dt) dt = 0.2; + + dt = 0.01; // use our own internal throttle + this.elapsed += dt; + + // changed the global position uniform of light 0, another way to change behavior of a light + rdgeGlobalParameters.u_light0Pos.set( [5*Math.cos(this.elapsed), 5*Math.sin(this.elapsed), 20]); + + // orbit the light nodes around the boxes + this.light.setPosition([1.2*Math.cos(this.elapsed*2.0), 1.2*Math.sin(this.elapsed*2.0), 1.2*Math.cos(this.elapsed*2.0)]); + this.light2.setPosition([-1.2*Math.cos(this.elapsed*2.0), 1.2*Math.sin(this.elapsed*2.0), -1.2*Math.cos(this.elapsed)]); + + // now update all the nodes in the scene + this.myScene.update(dt); + } + + // defining the draw function to control how the scene is rendered + this.draw = function() + { + g_Engine.setContext( this._canvas.rdgeid ); + + var ctx = g_Engine.getContext(); + var renderer = ctx.renderer; + if (renderer.unloadedTextureCount <= 0) + { + renderer.disableCulling(); + renderer._clear(); + this.myScene.render(); + + if (this._firstRender) + { + if (this._canvas.task) + { + this._firstRender = false; + this._canvas.task.stop(); + } + } + } + } +} + + + + -- cgit v1.2.3