module BABYLON { export class PostProcessRenderEffect { private _engine: Engine; private _postProcesses: PostProcess[]; private _postProcessType; //The type must inherit from PostProcess (example: BABYLON.BlackAndWhitePostProcess, like this without quotes). private _ratio: number; private _samplingMode: number; private _singleInstance: boolean; private _cameras: Camera[]; private _indicesForCamera: number[][]; private _renderPasses: PostProcessRenderPass[]; private _renderEffectAsPasses: PostProcessRenderEffect[]; // private public _name: string; public parameters: (effect: Effect) => void; constructor(engine: Engine, name: string, postProcessType, ratio?: number, samplingMode?: number, singleInstance?: boolean) { this._engine = engine; this._name = name; this._postProcessType = postProcessType; this._ratio = ratio || 1.0; this._samplingMode = samplingMode || null; this._singleInstance = singleInstance || true; this._cameras = []; this._postProcesses = []; this._indicesForCamera = []; this._renderPasses = []; this._renderEffectAsPasses = []; this.parameters = (effect: Effect) => { }; } private static _GetInstance(engine: Engine, postProcessType, ratio: number, samplingMode: number): PostProcess { var postProcess; var instance; var args = []; var parameters = PostProcessRenderEffect._GetParametersNames(postProcessType); for (var i = 0; i < parameters.length; i++) { switch (parameters[i]) { case "name": args[i] = postProcessType.toString(); break; case "ratio": args[i] = ratio; break; case "camera": args[i] = null; break; case "samplingMode": args[i] = samplingMode; break; case "engine": args[i] = engine; break; case "reusable": args[i] = true; break; default: args[i] = null; break; } } postProcess = function () { }; postProcess.prototype = postProcessType.prototype; instance = new postProcess(); postProcessType.apply(instance, args); return instance; } private static _GetParametersNames(func): string[] { var commentsRegex = /((\/\/.*$)|(\/\*[\s\S]*?\*\/))/mg; var functWithoutComments = eval(func).toString().replace(commentsRegex, ''); //TODO: delete eval var parameters = functWithoutComments.slice(functWithoutComments.indexOf('(') + 1, functWithoutComments.indexOf(')')).match(/([^\s,]+)/g); if (parameters === null) parameters = []; return parameters; } public _update(): void { for (var renderPassName in this._renderPasses) { this._renderPasses[renderPassName]._update(); } } public addPass(renderPass: PostProcessRenderPass): void { this._renderPasses[renderPass._name] = renderPass; this._linkParameters(); } public removePass(renderPass: PostProcessRenderPass): void { delete this._renderPasses[renderPass._name]; this._linkParameters(); } public addRenderEffectAsPass(renderEffect: PostProcessRenderEffect): void { this._renderEffectAsPasses[renderEffect._name] = renderEffect; this._linkParameters(); } public getPass(passName: string): void { for (var renderPassName in this._renderPasses) { if (renderPassName === passName) { return this._renderPasses[passName]; } } } public emptyPasses(): void { this._renderPasses.length = 0; this._linkParameters(); } // private public _attachCameras(cameras: Camera); public _attachCameras(cameras: Camera[]); public _attachCameras(cameras: any): void { var cameraKey; var _cam = Tools.MakeArray(cameras || this._cameras); for (var i = 0; i < _cam.length; i++) { var camera = _cam[i]; var cameraName = camera.name; if (this._singleInstance) { cameraKey = 0; } else { cameraKey = cameraName; } this._postProcesses[cameraKey] = this._postProcesses[cameraKey] || PostProcessRenderEffect._GetInstance(this._engine, this._postProcessType, this._ratio, this._samplingMode); var index = camera.attachPostProcess(this._postProcesses[cameraKey]); if (this._indicesForCamera[cameraName] == null) { this._indicesForCamera[cameraName] = []; } this._indicesForCamera[cameraName].push(index); if (this._cameras.indexOf(camera) == -1) { this._cameras[cameraName] = camera; } for (var passName in this._renderPasses) { this._renderPasses[passName]._incRefCount(); } } this._linkParameters(); } // private public _detachCameras(cameras: Camera); public _detachCameras(cameras: Camera[]); public _detachCameras(cameras: any): void { var _cam = Tools.MakeArray(cameras || this._cameras); for (var i = 0; i < _cam.length; i++) { var camera = _cam[i]; var cameraName = camera.Name; camera.detachPostProcess(this._postProcesses[this._singleInstance ? 0 : cameraName], this._indicesForCamera[cameraName]); var index = this._cameras.indexOf(cameraName); this._indicesForCamera.splice(index, 1); this._cameras.splice(index, 1); for (var passName in this._renderPasses) { this._renderPasses[passName]._decRefCount(); } } } // private public _enable(cameras: Camera); public _enable(cameras: Camera[]); public _enable(cameras: any): void { var _cam = Tools.MakeArray(cameras || this._cameras); for (var i = 0; i < _cam.length; i++) { var camera = _cam[i]; var cameraName = camera.Name; for (var j = 0; j < this._indicesForCamera[cameraName].length; j++) { if (camera._postProcesses[this._indicesForCamera[cameraName][j]] === undefined) { cameras[i].attachPostProcess(this._postProcesses[this._singleInstance ? 0 : cameraName], this._indicesForCamera[cameraName][j]); } } for (var passName in this._renderPasses) { this._renderPasses[passName]._incRefCount(); } } } // private public _disable(cameras: Camera); public _disable(cameras: Camera[]); public _disable(cameras: any): void { var _cam = Tools.MakeArray(cameras || this._cameras); for (var i = 0; i < _cam.length; i++) { var camera = _cam[i]; var cameraName = camera.Name; camera.detachPostProcess(this._postProcesses[this._singleInstance ? 0 : cameraName], this._indicesForCamera[cameraName]); for (var passName in this._renderPasses) { this._renderPasses[passName]._decRefCount(); } } } public getPostProcess(): PostProcess { return this._postProcesses[0]; // todo: always 0? } private _linkParameters(): void { for (var index in this._postProcesses) { this._postProcesses[index].onApply = (effect: Effect) => { this.parameters(effect); this._linkTextures(effect); }; } } private _linkTextures(effect): void { for (var renderPassName in this._renderPasses) { effect.setTexture(renderPassName, this._renderPasses[renderPassName].getRenderTexture()); } for (var renderEffectName in this._renderEffectAsPasses) { effect.setTextureFromPostProcess(renderEffectName + "Sampler", this._renderEffectAsPasses[renderEffectName].getPostProcess()); } } } }