Pete`s Messageboard Forum - OGL2 shaders - New shader pack

I find this shader below to be one of the used sort but it wasn't published yet in it's current form...

Vertex file



/*
Copyright (C) 2009 guest(r) - guest.r@gmail.com
*/

uniform vec4 OGL2Param;
uniform vec4 OGL2Size;

void main()
{
float x = (OGL2Size.x/2048.0)*OGL2Param.x;
float y = (OGL2Size.y/1024.0)*OGL2Param.y;
vec2 dg1 = vec2( x,y); vec2 dg2 = vec2(-x,y);
vec2 sd1 = dg10.5; vec2 sd2 = dg20.5;
vec2 ddx = vec2(x,0.0); vec2 ddy = vec2(0.0,y);

gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
gl_TexCoord[0] = gl_MultiTexCoord0;
gl_TexCoord[1].xy = gl_TexCoord[0].xy - sd1;
gl_TexCoord[2].xy = gl_TexCoord[0].xy - sd2;
gl_TexCoord[3].xy = gl_TexCoord[0].xy + sd1;
gl_TexCoord[4].xy = gl_TexCoord[0].xy + sd2;
gl_TexCoord[5].xy = gl_TexCoord[0].xy - dg1;
gl_TexCoord[6].xy = gl_TexCoord[0].xy + dg1;
gl_TexCoord[5].zw = gl_TexCoord[0].xy - dg2;
gl_TexCoord[6].zw = gl_TexCoord[0].xy + dg2;
gl_TexCoord[1].zw = gl_TexCoord[0].xy - ddy;
gl_TexCoord[2].zw = gl_TexCoord[0].xy + ddx;
gl_TexCoord[3].zw = gl_TexCoord[0].xy + ddy;
gl_TexCoord[4].zw = gl_TexCoord[0].xy - ddx;
}



/*
The 4xGLSoft shader - Bloom II

Copyright (C) 2009 guest(r) - guest.r@gmail.com
*/


uniform sampler2D OGL2Texture;

float hd(float x)
{
float y = x*1.1547-1.0;
float z = x*0.8660254;
y = (sin(y1.5707)+1.0)0.866025;
return ((1.0-z)x+zy);
}

void main()
{
vec3 c11 = texture2D(OGL2Texture, gl_TexCoord[0].xy).xyz;
vec3 s00 = texture2D(OGL2Texture, gl_TexCoord[1].xy).xyz;
vec3 s20 = texture2D(OGL2Texture, gl_TexCoord[2].xy).xyz;
vec3 s22 = texture2D(OGL2Texture, gl_TexCoord[3].xy).xyz;
vec3 s02 = texture2D(OGL2Texture, gl_TexCoord[4].xy).xyz;
vec3 c00 = texture2D(OGL2Texture, gl_TexCoord[5].xy).xyz;
vec3 c22 = texture2D(OGL2Texture, gl_TexCoord[6].xy).xyz;
vec3 c20 = texture2D(OGL2Texture, gl_TexCoord[5].zw).xyz;
vec3 c02 = texture2D(OGL2Texture, gl_TexCoord[6].zw).xyz;
vec3 c01 = texture2D(OGL2Texture, gl_TexCoord[1].zw).xyz;
vec3 c21 = texture2D(OGL2Texture, gl_TexCoord[2].zw).xyz;
vec3 c10 = texture2D(OGL2Texture, gl_TexCoord[3].zw).xyz;
vec3 c12 = texture2D(OGL2Texture, gl_TexCoord[4].zw).xyz;
vec3 dt = vec3(1.0,1.0,1.0);

float d1=dot(abs(c00-c22),dt)+0.001;
float d2=dot(abs(c20-c02),dt)+0.001;
float hl=dot(abs(c01-c21),dt)+0.001;
float vl=dot(abs(c10-c12),dt)+0.001;
float m1=dot(abs(s00-s22),dt)+0.001;
float m2=dot(abs(s02-s20),dt)+0.001;

vec3 t1=(hl(c10+c12)+vl(c01+c21)+(hl+vl)c11)/(3.0(hl+vl));
vec3 t2=(d1(c20+c02)+d2(c00+c22)+(d1+d2)c11)/(3.0(d1+d2));

c11 =.25(t1+t2+(m2(s00+s22)+m1*(s02+s20))/(m1+m2));

d1 = length(c11);
c11= vec3(pow(c11,vec3(1.2)));

gl_FragColor.xyz=hd(d1)*normalize(c11);
}

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