History of Post-process shader(No. 1) - WarmeY2K - A complete, fast and fun game engine for the web

Frag Variables	Scope	Type	Description
------------------------	-------	--------------	---------------------------------------------
FragUV	Attr	vec2	The pixel coord
PARAMS	Uniform	Params	Global parameters
SIZE	Uniform	vec2	The resolution screen size
SOURCE_TEXTURE	Uniform	Texture	The colored source texture (with lit)
NORMALS_TEXTURE	Uniform	Texture	The normals source texture
IDS_TEXTURE	Uniform	Texture	The indexes source texture
DEPTH_TEXTURE	Uniform	Texture	The depth source texture
SHADOW_FACTOR_TEXTURE	Uniform	Texture	The shadow-volume texture
SHADOW_DEPTH_CCW_TEXTURE	Uniform	Texture	The shadow-volume ccw depth texture
SHADOW_DEPTH_CW_TEXTURE	Uniform	Texture	The shadow-volume cw depth texture
outputColor	var	vec4	The fragment shader output color
normal	var	vec3	The pixel's normal
id	var	vec4	The pixel's id
depth	var	int	The pixel's depth
shadowFactor	var	vec4	The pixel's shadow-volume factor
shadowDepthCW	var	int	The pixel's shadow-volume cw depth
shadowDepthCCW	var	int	The pixel's shadow-volume ccw depth
flags	var	int	The pixel's filter flags
pixelCoord	var	vec2	The pixel's coord after pixelation

History of Post-process shader (No. 1)