surface_set_target_ext

This function is for use with the Shader Functions and sets the MRT (0 - 3) for native level shaders (DX9, DX11, OpenGL).

NOTE: When working with surfaces there is the possibility that they can cease to exist at any time due to them being stored in texture memory. You should ALWAYS check that a surface exists using surface_exists() before referencing them directly.

Syntax:

surface_set_target_ext(index, surface_id);

Returns:

Boolean

Example:

surface_set_target_ext(0, surf);

The above code will set the render target 0 to the surface ID indexed in the variable "surf".