Program to render glsl shaders

Inspired by shadertoy, this will allow you play with shaders on the desktop.

Info

• Shaders are written in standard glsl

• Added C style #include preprocessor directive

• 00 is in the lower left corner

• Output vec4 color must be put into DiffuseColor

• Number of inputs are provided by the program:

  Input	Type	Description
  MousePosition	vec4	Cursor position in x & y, lb and rb in z & w respectively
  Resolution	vec2	Window pixel resolution
  DeltaTime	float	Time spent in the last frame
  TotalTime	float	Time since program start
  FragCoord	vec4	Current fragment position

Usage

• Start program from the command line to load a specific shader. Shader file name must be the first argument.

• If no arguments are given, program will look for a file called "shader1.shader".

• Options:

  Option	Description
  -w	Window width, default 1000
  -h	Window height, default 1000
  -e	(flag) output pre-processed code to file

Example start command:

shaderthing.exe test.shader -w 500 -h 500