source: trunk/tools/neercs/video/postfx.lolfx @ 2021

Last change on this file since 2021 was 2021, checked in by rez, 8 years ago

neercs: scanline auto-resize

File size: 2.9 KB
Line 
1[vert.glsl]
2
3#version 120
4
5void main()
6{
7    gl_Position=gl_Vertex;
8    gl_TexCoord[0]=gl_MultiTexCoord0;
9}
10
11[frag.glsl]
12
13#version 120
14
15uniform sampler2D texture;
16uniform vec2 screen_size;
17uniform vec2 ratio_2d;
18uniform float time;
19uniform vec2 deform;
20uniform vec4 ghost1;
21uniform vec4 ghost2;
22uniform float vignetting;
23uniform float aberration;
24uniform vec4 moire_h;
25uniform vec4 moire_v;
26uniform vec4 scanline_h;
27uniform vec4 scanline_v;
28uniform vec3 corner;
29uniform float sync;
30uniform float beat;
31
32vec2 screen(in vec2 p,in float radius)
33{
34    float d=deform.x+sync*0.0625+beat*0.0375;
35    return p*(1.5-(radius*cos(p.x*d)+radius*cos(p.y*d)))-0.5;
36}
37
38vec3 get_color(in sampler2D tex,in vec2 p)
39{
40    return texture2D(tex,clamp(p,-1.0,0.0)).xyz;
41}
42
43float letterbox(in vec2 p,in float w,in float radius,in float smooth)
44{
45    return 1.0-smoothstep(smooth,1.0,length(max(abs(p*w+w/2.0)-vec2(radius),0.0))+radius);
46}
47
48void main(void)
49{
50    vec2 q=gl_FragCoord.xy/screen_size.xy;
51    vec2 p=-1.0+2.0*gl_FragCoord.xy/screen_size.xy;
52    p.y+=0.025*sync;
53    vec2 z=screen(p,deform.y);
54    vec2 z1=screen(p,deform.y+ghost1.z*0.01);
55    vec2 z2=screen(p,deform.y+ghost2.z*0.01);
56    float mask=q.x*(6.0-q.x*6.0)*q.y*(6.0-q.y*6.0);
57
58    vec3 source=get_color(texture,z);
59    vec3 g1=get_color(texture,z1-ghost1.xy*0.01);
60    vec3 g2=get_color(texture,z2-ghost2.xy*0.01);
61
62    vec3 c=source+g1*ghost1.w+g2*ghost2.w;                   // mix
63
64    float v=aberration/float(screen_size.x/ratio_2d.x);//+aberration/float(screen_size.x)*(2.0-mask);
65    vec3 ca1=get_color(texture,vec2(z.x-v,z.y));
66    vec3 ca2=get_color(texture,vec2(z.x+v,z.y));
67    c+=vec3(ca1.x,c.y,ca2.z);                                // chromatic aberration
68
69    vec3 c1=vec3(0.8,0.8,0.8);
70    vec3 c2=vec3(0.0,0.0,0.0);
71    vec3 c3=vec3(1.0,1.0,1.0);
72    vec3 c4=vec3(0.8,0.8,0.8);
73    vec3 c5=vec3(0.0,0.0,0.0);
74    vec3 r;
75    float r_p=0.5;
76    float r_h=0.05;
77    float k=z.y+1.0;
78
79    if(k<=r_p-r_h) r=mix(c1,c2,k*(1/(r_p-r_h)));
80    if(k>r_p-r_h&&k<=r_p) r=mix(c2,c3,(k-(r_p-r_h))*(1/r_h));
81    if(k>r_p&&k<r_p+r_h) r=mix(c3,c4,(k-r_p)*(1/r_h));
82    if(k>=r_p+r_h) r=mix(c4,c5,k*((k-(r_p+r_h))/(r_p-r_h)));
83
84    c*=moire_h.x+moire_h.y*sin(z.y*float(screen_size.y*moire_h.z)/ratio_2d.y)*sin(0.5+z.x*float(screen_size.x*moire_h.w)/ratio_2d.x); // moire h
85    c*=moire_v.x+moire_v.y*sin(z.x*float(screen_size.x*moire_v.z)/ratio_2d.x)*sin(0.5+z.y*float(screen_size.y*moire_v.w)/ratio_2d.y); // moire v
86    c*=scanline_h.x+scanline_h.y*cos(z.y*float(screen_size.y*scanline_h.z+scanline_h.w)/ratio_2d.y); // scanline h
87    c*=scanline_v.x+scanline_v.y*cos(z.x*float(screen_size.x*scanline_v.z+scanline_v.w)/ratio_2d.x); // scanline v
88    c+=r*0.05;                                               // reflection
89    c*=mix(1.0,mask,vignetting);                             // vignetting
90    c*=letterbox(z,corner.x+2.0,corner.y,corner.z);          // corner
91    gl_FragColor=vec4(c,1.0);
92}
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