DRAWBUFFERS

/* DRAWBUFFERS:XYZ */

Location: any fragment stage (.fsh) of any program

The legacy version of the RENDERTARGETS directive. This directive can only reference indicies 0 through 9, so colortex10 through colortex15 cannot be bound with this directive. Because of this, it is recommended to use RENDERTARGETS directive instead as that can access all available buffers.

To use this directive replace XYZ with the sequence of indices of color attachments. For example, putting /* DRAWBUFFERS:0178 */ in composite.fsh would configure that program to write to colortex0, colortex1, colortex7, and colortex8. The comment can be placed anywhere in the .fsh file.

More information on how this buffer applies to outputing values is in the RENDERTARGETS section.