diff options
Diffstat (limited to 'pass1.frag')
-rw-r--r-- | pass1.frag | 15 |
1 files changed, 7 insertions, 8 deletions
@@ -2,24 +2,23 @@ #include "consts.h" -out vec4 color; +layout(location = 0) out vec4 color; in vec4 gl_FragCoord; -uniform float time; -uniform sampler2D buf; - -ivec2 window = ivec2(RES_H, RES_V); +layout(location = U_LOC_TIME) uniform float time; +layout(location = U_LOC_PASS1) uniform sampler2D buf; +ivec2 res = ivec2(RES_H, RES_V); void main() { vec2 point = vec2(sin(time), cos(time)) * 0.7; - point.x *= float(window.y) / float(window.x); // adjust for aspect ratio - point = ((point + 1.0) / 2.0) * window.xy; // convert to screen coords + point.x *= float(res.y) / float(res.x); // adjust for aspect ratio + point = ((point + 1.0) / 2.0) * res.xy; // convert to screen coords float r = 20.0; // circle radius color = vec4(0.0); if (length(gl_FragCoord.xy - point) < r) color = vec4(1.0); - color += texture(buf, gl_FragCoord.xy / window.xy) * 0.95; + color += texture(buf, gl_FragCoord.xy / res.xy) * 0.95; } |