module BABYLON { /** * The ChromaticAberrationPostProcess separates the rgb channels in an image to produce chromatic distortion around the edges of the screen */ export class ChromaticAberrationPostProcess extends PostProcess { /** * The amount of seperation of rgb channels (default: 30) */ aberrationAmount = 30; /** * The amount the effect will increase for pixels closer to the edge of the screen. (default: 0) */ radialIntensity = 0; /** * The normilized direction in which the rgb channels should be seperated. If set to 0,0 radial direction will be used. (default: Vector2(0.707,0.707)) */ direction = new Vector2(0.707,0.707); /** * The center position where the radialIntensity should be around. [0.5,0.5 is center of screen, 1,1 is top right corder] (default: Vector2(0.5 ,0.5)) */ centerPosition = new Vector2(0.5,0.5); /** * Creates a new instance ChromaticAberrationPostProcess * @param name The name of the effect. * @param screenWidth The width of the screen to apply the effect on. * @param screenHeight The height of the screen to apply the effect on. * @param options The required width/height ratio to downsize to before computing the render pass. * @param camera The camera to apply the render pass to. * @param samplingMode The sampling mode to be used when computing the pass. (default: 0) * @param engine The engine which the post process will be applied. (default: current engine) * @param reusable If the post process can be reused on the same frame. (default: false) * @param textureType Type of textures used when performing the post process. (default: 0) * @param blockCompilation If compilation of the shader should not be done in the constructor. The updateEffect method can be used to compile the shader at a later time. (default: false) */ constructor(name: string, screenWidth:number, screenHeight:number, options: number | PostProcessOptions, camera: Nullable, samplingMode?: number, engine?: Engine, reusable?: boolean, textureType: number = Engine.TEXTURETYPE_UNSIGNED_INT, blockCompilation = false) { super(name, "chromaticAberration", ["chromatic_aberration", "screen_width", "screen_height", "direction", "radialIntensity", "centerPosition"], [], options, camera, samplingMode, engine, reusable, null, textureType, undefined, null, blockCompilation); this.onApplyObservable.add((effect: Effect) => { effect.setFloat('chromatic_aberration', this.aberrationAmount); effect.setFloat('screen_width', screenWidth); effect.setFloat('screen_height', screenHeight); effect.setFloat('radialIntensity', this.radialIntensity); effect.setFloat2('direction', this.direction.x,this.direction.y); effect.setFloat2('centerPosition', this.centerPosition.x,this.centerPosition.y); }) } } }