Class RenderWebGLAbstract

Adjusts the size of the different texture attachments (render targets) to the canvas size ⚠️ CAUTION: Expensive operation, use only when canvas size changed

Checks the first parameter and throws an exception with the WebGL-errorcode if the value is null

Clear the offscreen renderbuffer with the given Color

Return a reference to the offscreen-canvas

Return a rectangle describing the size of the offscreen-canvas. x,y are 0 at all times.

Retrieve the area on the offscreen-canvas the camera image gets rendered to.

Return a reference to the rendering context

Initializes offscreen-canvas, renderingcontext and hardware viewport. Call once before creating any resources like meshes or shaders

Initializes different framebuffers aswell as texture attachments to use as render targets

Used with a Picker-camera, this method renders one pixel with picking information for each pickable object in the line of sight and returns that as an unsorted array of Picks. The function to render the objects into the pick buffer must be provided by the caller.

Read the (world) position from the pixel at the given point on the render-rectangle (origin top left). ⚠️ CAUTION: Currently only works when ambient occlusion is active due to writing to the position texture being disabled otherwise.

Reset the framebuffer to the main color buffer.

Set the blend mode to render with

Set the size of the offscreen-canvas.

Set which color components to enable or to disable when rendering to a color buffer.

Set the comparison operation used to test fragment depths against current depth buffer values.

Enable / Disable WebGLs depth test.

Set the final framebuffer to render to. If null, the canvas default framebuffer is used. Used by XR to render to the XRWebGLLayer framebuffer.

Set the area on the offscreen-canvas to render the camera image to.

Enable / Disable WebGLs scissor test.

Set WebGLs viewport.