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Jarcode
2017-11-25 22:00:49 -08:00
parent dce58721aa
commit ca7e6c8ba3
20 changed files with 2235 additions and 0 deletions
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shaders/graph/2.frag Normal file
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layout(pixel_center_integer) in vec4 gl_FragCoord;
#request uniform "prev" tex
uniform sampler2D tex; /* screen texture */
#request uniform "screen" screen
uniform ivec2 screen; /* screen dimensions */
out vec4 fragment; /* output */
void main() {
fragment = texture(tex, vec2(gl_FragCoord.x / screen.x, gl_FragCoord.y / screen.y));
float a0 = texture(tex, vec2((gl_FragCoord.x + 1) / screen.x, (gl_FragCoord.y + 0) / screen.y)).a;
float a1 = texture(tex, vec2((gl_FragCoord.x + 1) / screen.x, (gl_FragCoord.y + 1) / screen.y)).a;
float a2 = texture(tex, vec2((gl_FragCoord.x + 0) / screen.x, (gl_FragCoord.y + 1) / screen.y)).a;
float a3 = texture(tex, vec2((gl_FragCoord.x + 1) / screen.x, (gl_FragCoord.y + 0) / screen.y)).a;
float a4 = texture(tex, vec2((gl_FragCoord.x - 1) / screen.x, (gl_FragCoord.y - 0) / screen.y)).a;
float a5 = texture(tex, vec2((gl_FragCoord.x - 1) / screen.x, (gl_FragCoord.y - 1) / screen.y)).a;
float a6 = texture(tex, vec2((gl_FragCoord.x - 0) / screen.x, (gl_FragCoord.y - 1) / screen.y)).a;
float a7 = texture(tex, vec2((gl_FragCoord.x - 1) / screen.x, (gl_FragCoord.y - 0) / screen.y)).a;
float avg = (a0 + a1 + a2 + a3 + a4 + a5 + a6 + a7) / 8.0;
if (gl_FragCoord.y > 1) {
fragment *= avg;
}
}