mirror of
https://github.com/Ttanasart-pt/Pixel-Composer.git
synced 2025-02-11 12:45:17 +01:00
120 lines
3.3 KiB
GLSL
120 lines
3.3 KiB
GLSL
//
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// Simple passthrough vertex shader
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//
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attribute vec3 in_Position; // (x,y,z)
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//attribute vec3 in_Normal; // (x,y,z) unused in this shader.
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attribute vec4 in_Colour; // (r,g,b,a)
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attribute vec2 in_TextureCoord; // (u,v)
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varying vec2 v_vTexcoord;
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varying vec4 v_vColour;
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void main()
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{
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vec4 object_space_pos = vec4( in_Position.x, in_Position.y, in_Position.z, 1.0);
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gl_Position = gm_Matrices[MATRIX_WORLD_VIEW_PROJECTION] * object_space_pos;
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v_vColour = in_Colour;
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v_vTexcoord = in_TextureCoord;
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}
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//######################_==_YOYO_SHADER_MARKER_==_######################@~
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#define TAU 6.28318530718
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varying vec2 v_vTexcoord;
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varying vec4 v_vColour;
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uniform sampler2D texture;
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uniform vec2 dimension;
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uniform float seed;
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uniform float scale;
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uniform float size;
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uniform float blur;
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uniform float noise;
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uniform float intensity;
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#define TAU 6.28318530718
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uniform int ridgeUse;
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uniform float ridgeCount;
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uniform float ridgeIntens;
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float random (in vec2 st, float seed) { return fract(sin(dot(st.xy + seed, vec2(1892.9898, 78.23453))) * 437.54123); }
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float index(vec2 id) {
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if(id.y > 0.5) return 1.;
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if(id.x > 0.5) return 2.;
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return 0.;
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}
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float fnoise(vec2 pos, float siz, float dist) {
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float lig = smoothstep(siz, siz + blur, dist);
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float rin = smoothstep(blur, 1. + blur, dist);
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float rnd = random(pos, seed);
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rnd = .5 + (rnd - .5) * 4.;
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lig = mix(lig, lig * rnd, noise * (1. - rin));
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return lig;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////
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uniform int flickerUse;
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uniform float flickerIntens;
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uniform float flickerCut;
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uniform float flickerTime;
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float flick(vec2 id) {
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if(flickerUse == 0) return 1.;
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float dl = flickerTime + random(id, seed) * TAU;
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float ww = .8 * abs(sin(dl)) +
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.2 * sin((dl + random(id, seed + 12.41)) * 2.) +
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.1 * sin((dl + random(id, seed + 65.35)) * 3.);
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ww = smoothstep(flickerCut, 1., ww);
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return 1. - ww * flickerIntens;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////
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void main() {
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vec2 scs = vec2(scale) * 2.;
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vec2 pos = v_vTexcoord - .5;
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pos *= scs;
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vec2 id = floor(pos);
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vec2 px = pos - id;
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vec2 uv = id / scs + .5;
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float siz = 1. - size;
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float ind = index(px);
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int indx = int(mod(ind, 3.));
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float sz = siz * .15;
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vec2 cn = vec2(.5);
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if(indx == 0) cn = vec2(.25 + sz, .25 + sz);
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else if(indx == 1) cn = vec2(.50, .75 - sz);
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else if(indx == 2) cn = vec2(.75 - sz, .25 + sz);
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float dist = 1. - pow(pow(px.x - cn.x, 6.) + pow(px.y - cn.y, 6.), 1. / 6.) * 4.;
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float lig = fnoise(pos, siz, dist);
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if(ridgeUse == 1) {
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float ridge = smoothstep(.0, ridgeIntens, pow(abs(sin(px.x * TAU * ridgeCount)), 2.));
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lig = mix(lig, lig * ridge, 1.);
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}
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float ints = intensity * flick(id);
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vec3 clr = vec3(0.);
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if(indx == 0) clr.r = ints;
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else if(indx == 1) clr.g = ints;
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else if(indx == 2) clr.b = ints;
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clr *= lig;
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vec3 baseC = texture2D( gm_BaseTexture, uv ).rgb;
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baseC.rgb *= clr;
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gl_FragColor = vec4(baseC, 1.);
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// gl_FragColor = vec4(px, 0., 1.);
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}
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