API Reference > imodeljs-frontend > Rendering > RenderSystem RenderSystem Namespace A RenderSystem provides access to resources used by the internal WebGL-based rendering system. An application rarely interacts directly with the RenderSystem; instead it interacts with types like Viewport which coordinate with the RenderSystem on the application's behalf. Interface Name Description RenderSystem.Options Options passed to IModelApp.supplyRenderSystem to configure the RenderSystem on startup. Defined in core/frontend/src/render/RenderSystem.ts Line 547 RenderSystem Class A RenderSystem provides access to resources used by the internal WebGL-based rendering system. An application rarely interacts directly with the RenderSystem; instead it interacts with types like Viewport which coordinate with the RenderSystem on the application's behalf. see IModelApp.renderSystem. Extended by MockRender.System Implements IDisposable Methods Name Description createBranch(branch: GraphicBranch, transform: Transform): RenderGraphic Create a RenderGraphic consisting of a list of Graphics, with optional transform and symbology overrides applied to the list createClipVolume(_clipVector: ClipVector): undefined | RenderClipVolume Create a clip volume to clip geometry. createGraphic(options: GraphicBuilderOptions): GraphicBuilder Abstract Obtain a GraphicBuilder from which to produce a RenderGraphic. createGraphicBranch(branch: GraphicBranch, transform: Transform, options?: GraphicBranchOptions): RenderGraphic Abstract Create a graphic from a GraphicBranch. createGraphicBuilder(placement: Transform, type: GraphicType, viewport: Viewport, pickableId?: string): GraphicBuilder Creates a GraphicBuilder for creating a RenderGraphic. createGraphicList(primitives: RenderGraphic[]): RenderGraphic Abstract Create a RenderGraphic consisting of a list of Graphics to be drawn together. createGraphicOwner(ownedGraphic: RenderGraphic): RenderGraphicOwner Create a graphic that assumes ownership of another graphic. createMaterial(_params: Params, _imodel: IModelConnection): undefined | RenderMaterial Create a RenderMaterial from parameters createScreenSpaceEffectBuilder(_params: ScreenSpaceEffectBuilderParams): undefined | ScreenSpaceEffectBuilder Obtain an object capable of producing a custom screen-space effect to be applied to the image rendered by a Viewport. createSkyBox(_params: SkyBox.CreateParams): undefined | RenderGraphic Create a Graphic for a SkyBox which encompasses the entire scene, rotating with the camera. createTextureFromElement(_id: string, _imodel: IModelConnection, _params: Params, _format: ImageSourceFormat): undefined | RenderTexture Create a new texture by its element ID. createTextureFromImage(_image: HTMLImageElement, _hasAlpha: boolean, _imodel: undefined | IModelConnection, _params: Params): undefined | RenderTexture Create a new texture from an HTML image. createTextureFromImageBuffer(_image: ImageBuffer, _imodel: IModelConnection, _params: Params): undefined | RenderTexture Create a new texture from an ImageBuffer. createTextureFromImageSource(source: ImageSource, imodel: undefined | IModelConnection, params: Params): Promise<undefined | RenderTexture> Create a new texture from an ImageSource. findMaterial(_key: string, _imodel: IModelConnection): undefined | RenderMaterial Find a previously-created RenderMaterial by its ID. findTexture(_key: string, _imodel: IModelConnection): undefined | RenderTexture Find a previously-created RenderTexture by its ID. getGradientTexture(_symb: Symb, _imodel: IModelConnection): undefined | RenderTexture Obtain a texture created from a gradient. waitForAllExternalTextures(): Promise<void> Return a Promise which when resolved indicates that all pending external textures have finished loading from the backend. contextLossHandler(): Promise<any> Static A function that is invoked after the WebGL context is lost. Properties Name Type Description antialiasSamples undefined | number Antialias samples to use on all subsequently created render targets. Beta debugControl Accessor ReadOnly undefined | RenderSystemDebugControl Obtain an object that can be used to control various debugging features. Defined in core/frontend/src/render/RenderSystem.ts Line 187 Last Updated: 29 November, 2022