- The clear mode when the sub-viewport is used as a render target.
- The update mode when the sub-viewport is used as a render target.
- The width and height of the sub-viewport.
- The 2D size override of the sub-viewport. If either the width or height is [code]0[/code], the override is disabled.
- If [code]true[/code], the 2D size override affects stretch as well.
- If [code]true[/code], the sub-viewport will be used in AR/VR process.
Always clear the render target before drawing.
Never clear the render target.
Clear the render target next frame, then switch to [constant CLEAR_MODE_NEVER].
Do not update the render target.
Update the render target once, then switch to [constant UPDATE_DISABLED].
Update the render target only when it is visible. This is the default value.
Update the render target only when the its parent is visible.
Always update the render target.