WebGL - How to use framebuffers part 1

In this episode, I discuss how to setup a framebuffer object in order to use it to draw something off screen which will later be used to draw on screen.
Concepts:

Framebuffers

• Use a framebuffer to perform different types of processing before displaying content.
• Use a framebuffer as a texture image.
• "Offscreen drawing"
• FBO (Framebuffer Objects) have attachments (color, depth, stencil), like the depth and stencil buffers.

RenderBuffers

• general purpose drawing area

8 steps

• create FBO
• create texture object
• create render object
• bind render object to the target and set size
• attach texture object to color attachment of FBO
• attach render object to the depth attachment of FBO
• check status of FBO
• draw frame using FBO

Resources:

• https://github.com/davidwparker/programmingtil-webgl/tree/master/0090-framebuffer-part-1