isf 0.1.0

Parsing, Deserialization and Serialization of the Interactive Shader Format.
Documentation 
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#if __VERSION__ <= 120
varying vec2 left_coord;
varying vec2 right_coord;
varying vec2 above_coord;
varying vec2 below_coord;
#else
out vec2 left_coord;
out vec2 right_coord;
out vec2 above_coord;
out vec2 below_coord;
#endif


void main()
{
	isf_vertShaderInit();
	vec2 texc = vec2(isf_FragNormCoord[0],isf_FragNormCoord[1]);
	vec2 d = 1.0/RENDERSIZE;

	left_coord = clamp(vec2(texc.xy + vec2(-d.x , 0)),0.0,1.0);
	right_coord = clamp(vec2(texc.xy + vec2(d.x , 0)),0.0,1.0);
	above_coord = clamp(vec2(texc.xy + vec2(0,d.y)),0.0,1.0);
	below_coord = clamp(vec2(texc.xy + vec2(0,-d.y)),0.0,1.0);
}