The gpu.shaders vocabulary supports defining, compiling, and linking shaders into programs that run on the GPU and control rendering.

GLSL-PROGRAM:

GLSL-SHADER:

GLSL-SHADER-FILE:

A program must be instantiated for each graphics context it is used in:

<program-instance> ( program: program -- instance: program-instance )

Program instances can be updated on the fly, allowing for interactive development of shaders:

refresh-program ( program: program -- )

Render data inside GPU buffers is organized into vertex-arrays for consumption by shader code:

vertex-array

<multi-vertex-array> ( vertex-formats program-instance -- vertex-array )

<vertex-array*> ( vertex-buffer program-instance format -- vertex-array )

<vertex-array> ( vertex-buffer program-instance -- vertex-array )

VERTEX-FORMAT: