This enum informs a rendering component like a Camera or a Camera Portal (mirror) to clear the buffer with when rendering a new frame. OpenGL, DX11, and other rendering engines render on top of the previous pixels when drawing, and this determines what is done with the pixels it doesn't draw over.
| Name | Value | Description | 
|---|---|---|
| Skybox | 0 | When rendering, clear unrendered pixels with the skybox in the world. This is the expected behavior to match realism. | 
| Color | 1 | When rendering, clear unrendered pixels with a color. This is useful in circumstances like green screens | 
| Depth | 2 | When rendering, clear only pixels that have depth values assigned to them. This is not Photo Sensitive friendly when viewing the skybox!!! | 
| Nothing | 3 | Don't replace non drawn pixels every frame. This can cause smearing and bright flashes and blooming when enabled. This is not Photo Sensitive friendly!!! | 
