o3djs.simple.SimpleInfo = function(clientObject) {
    this.clientObject = clientObject;
    this.o3d = clientObject.o3d;
    this.math = o3djs.math;
    this.client = clientObject.client;
    this.pack = this.client.createPack();
    this.viewInfo = o3djs.rendergraph.createBasicView(
        this.pack,
        this.client.root,
        this.client.renderGraphRoot);
    this.id = 0;
  
    // Create 1 non-textured material and 1 textured material.
    //
    // TODO: Refactor.
    // This is slightly backward. What we really want is to be able to request
    // an effect of a specific type from our shader builder but the current shader
    // builder expects a material to already exist. So, we create a material here
    // just to pass it to the shader builder, then we keep the effect it created
    // but throw away the material.
    //
    // TODO: Fix shader builder so it creates diffuseColorMult,
    //   diffuseColorOffset and  diffuseTexture so
    //   diffuse = diffuseTexture * diffuseColorMult + diffuseColorOffset.
  
    var material = this.pack.createObject('Material');
  
    o3djs.effect.attachStandardShader(this.pack,
                                           material,
                                           [0, 0, 0],
                                           'phong');
  
    this.nonTexturedEffect = material.effect;
    this.pack.removeObject(material);
  
    var material = this.pack.createObject('Material');
    var samplerParam = material.createParam('diffuseSampler', 'ParamSampler');
    o3djs.effect.attachStandardShader(this.pack,
                                           material,
                                           [0, 0, 0],
                                           'phong');
  
    this.texturedEffect = material.effect;
    this.pack.removeObject(material);
  
    this.globalParamObject = this.pack.createObject('ParamObject');
    this.lightWorldPosParam = this.globalParamObject.createParam('lightWorldPos',
                                                                 'ParamFloat3');
    this.lightColorParam = this.globalParamObject.createParam('lightColor',
                                                              'ParamFloat4');
    this.setLightColor(1, 1, 1, 1);
    this.setLightPosition(255, 150, 150);  // same as camera.
  
    // Attempt to setup a resonable default perspective matrix.
    this.zNear = 0.1;
    this.zFar = 1000;
    this.fieldOfView = this.math.degToRad(45);
    this.setPerspectiveMatrix_();
  
    // Attempt to setup a resonable default view.
    this.cameraPosition = [250, 150, 150];
    this.cameraTarget = [0, 0, 0];
    this.cameraUp = [0, 1, 0];
    this.setViewMatrix_();
  };