OrdinaryMagician/marifx_m
OrdinaryMagician/marifx_m
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LUT Grading and Technicolor added.

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Preset save/load added.
Fixed a typo.
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Marisa the Magician 2021-10-20 23:49:10 +02:00
commit 0380e56f90
8 changed files with 321 additions and 9 deletions
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20
shaders/glsl/mfx_lutgrading.fp Normal file
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/*
LUT color grading from MariENB
(C)2012-2021 Marisa Kirisame
*/
void main()
{
vec2 coord = TexCoord;
vec4 res = texture(InputTexture,coord);
vec3 lc = clamp(res.rgb,0.,63./64.);
vec2 lcoord = vec2((lc.r+lutindex)/16.,lc.g/64.)+vec2(1./2048,1./8192.);
double minb = floor(lc.b*64.)/64.;
double maxb = ceil(lc.b*64.)/64.;
double theta = fract(lc.b*64.);
vec3 luta = textureLod(LUTTexture,lcoord+vec2(0,minb),0.).rgb;
vec3 lutb = textureLod(LUTTexture,lcoord+vec2(0,maxb),0.).rgb;
vec3 lutm = mix(luta,lutb,vec3(theta)); // has to be vec3 for whatever reason
res.rgb = mix(res.rgb,lutm,lutblend);
FragColor = res;
}