class FoxShader

Handy little function to combine different fragment and vertex programs from two different shaders into one without recompiling sources!

Note: since this shader uses programs from other shaders, destroy() won't delete the program on the GPU and destroying shaderA or shaderB will cause issues when trying to use this shader So make sure to use it carefully.

The result object contains the frag from shaderA and the vert from shaderB.

Version of the shader for the shadow pass only

Cached skin location for fast access

Cached bone data location for fast access

Cached instanced location for fast access

Variable to keep track of combined shaders

When loading a shader, it won't be compiled right away, instead it will be compiled when needed for rendering. This should be set only once per shader.

This is required for async/threaded resource loading, as the programs fail to link when in a separate thread (I believe there's a fix to it but I don't know).

If any uniform is set while this flag is enabled, it will be saved uploaded to the GPU once the shader been compiled.

The preprocessor flags for this shader.

A temporary array to store matrix values, cached for speed

Compiles the shader. Used internally. Maybe one day it'll support async.

While the shader isn't compiled, no uniform should be set, else they will be lost.

Recompiles this shader using the cached vert and frag sources.

Optionally you can provide a new shader flags array.

Note: If this shader is a combined shader (check combine() for details), a new shader will be created and this will be marked as not combined.