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Update nightvision2scanlines.glsl

This commit is contained in:
myownfriend 2014-05-20 23:54:11 -04:00
parent 548d872843
commit 4c1ef9ba80
1 changed files with 66 additions and 51 deletions
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117
Data/Sys/Shaders/nightvision2scanlines.glsl
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@ -7,55 +7,70 @@ uniform vec4 resolution;
void main()
{
//variables
float internalresolution = 1278.0;
float4 c0 = texture(samp9, uv0).rgba;
//blur
float4 blurtotal = float4(0.0, 0.0, 0.0, 0.0);
float blursize = 1.5;
blurtotal += texture(samp9, uv0 + float2(-blursize, -blursize)*resolution.zw);
blurtotal += texture(samp9, uv0 + float2(-blursize, blursize)*resolution.zw);
blurtotal += texture(samp9, uv0 + float2( blursize, -blursize)*resolution.zw);
blurtotal += texture(samp9, uv0 + float2( blursize, blursize)*resolution.zw);
blurtotal += texture(samp9, uv0 + float2(-blursize, 0.0)*resolution.zw);
blurtotal += texture(samp9, uv0 + float2( blursize, 0.0)*resolution.zw);
blurtotal += texture(samp9, uv0 + float2( 0.0, -blursize)*resolution.zw);
blurtotal += texture(samp9, uv0 + float2( 0.0, blursize)*resolution.zw);
blurtotal *= 0.125;
c0 = blurtotal;
//greyscale
float grey = ((0.3 * c0.r) + (0.4 * c0.g) + (0.3 * c0.b));
// brighten and apply horizontal scanlines
// This would have been much simpler if I could get the stupid modulo (%) to work
// If anyone who is more well versed in Cg knows how to do this it'd be slightly more efficient
// float lineIntensity = ((uv0[1] % 9) - 4) / 40;
float vPos = uv0.y*resolution.y / 9.0;
float lineIntensity = (((vPos - floor(vPos)) * 9.0) - 4.0) / 40.0;
grey = grey * 0.5 + 0.7 + lineIntensity;
// darken edges
float x = uv0.x * resolution.x;
float y = uv0.y * resolution.y;
if (x > internalresolution/2.0) x = internalresolution-x;
if (y > internalresolution/2.0) y = internalresolution-y;
if (x > internalresolution/2.0*0.95) x = internalresolution/2.0*0.95;
if (y > internalresolution/2.0*0.95) y = internalresolution/2.0*0.95;
x = -x + 641.0;
y = -y + 641.0;
/*****inline square root routines*****/
// bit of a performance bottleneck.
// neccessary to make the darkened area rounded
// instead of rhombus-shaped.
float sqrt = x / 10.0;
while((sqrt*sqrt) < x) sqrt+=0.1;
x = sqrt;
sqrt = y / 10.0;
while((sqrt*sqrt) < y) sqrt+=0.1;
y = sqrt;
/*****end of inline square root routines*****/
x *= 2.0;
y *= 2.0;
grey -= x / 200.0;
grey -= y / 200.0;
// output
ocol0 = float4(0.0, grey, 0.0, 1.0);
//variables
float internalresolution = 1278.0;
float4 c0 = texture(samp9, uv0).rgba;
//blur
float4 blurtotal = float4(0.0, 0.0, 0.0, 0.0);
float blursize = 1.5;
blurtotal += texture(samp9, uv0 + float2(-blursize, -blursize)*resolution.zw);
blurtotal += texture(samp9, uv0 + float2(-blursize, blursize)*resolution.zw);
blurtotal += texture(samp9, uv0 + float2( blursize, -blursize)*resolution.zw);
blurtotal += texture(samp9, uv0 + float2( blursize, blursize)*resolution.zw);
blurtotal += texture(samp9, uv0 + float2(-blursize, 0.0)*resolution.zw);
blurtotal += texture(samp9, uv0 + float2( blursize, 0.0)*resolution.zw);
blurtotal += texture(samp9, uv0 + float2( 0.0, -blursize)*resolution.zw);
blurtotal += texture(samp9, uv0 + float2( 0.0, blursize)*resolution.zw);
blurtotal *= 0.125;
c0 = blurtotal;
//greyscale
float grey = ((0.3 * c0.r) + (0.4 * c0.g) + (0.3 * c0.b));
// brighten and apply horizontal scanlines
// This would have been much simpler if I could get the stupid modulo (%) to work
// If anyone who is more well versed in Cg knows how to do this it'd be slightly more efficient
// float lineIntensity = ((uv0[1] % 9) - 4) / 40;
float vPos = uv0.y*resolution.y / 9.0;
float lineIntensity = (((vPos - floor(vPos)) * 9.0) - 4.0) / 40.0;
grey = grey * 0.5 + 0.7 + lineIntensity;
// darken edges
float x = uv0.x * resolution.x;
float y = uv0.y * resolution.y;
if (x > internalresolution/2.0)
x = internalresolution-x;
if (y > internalresolution/2.0)
y = internalresolution-y;
if (x > internalresolution/2.0*0.95)
x = internalresolution/2.0*0.95;
if (y > internalresolution/2.0*0.95)
y = internalresolution/2.0*0.95;
x = -x + 641.0;
y = -y + 641.0;
//****inline square root routines*****/
// bit of a performance bottleneck.
// neccessary to make the darkened area rounded
// instead of rhombus-shaped.
float sqrt = x / 10.0;
while((sqrt*sqrt) < x) sqrt+=0.1;
x = sqrt;
sqrt = y / 10.0;
while((sqrt*sqrt) < y) sqrt+=0.1;
y = sqrt;
x *= 2.0;
y *= 2.0;
grey -= x / 200.0;
grey -= y / 200.0;
// output
ocol0 = float4(0.0, grey, 0.0, 1.0);
}