1 files changed, 14 insertions, 2 deletions
diff --git a/shader.frag b/shader.frag
index 4741236..c6cc012 100644
--- a/shader.frag
+++ b/shader.frag
@@ -1,4 +1,4 @@
-#version 440 core
+#version 450 core
 #ifdef GL_ES
 precision mediump float;
 #endif
@@ -7,6 +7,8 @@ uniform vec2 resolution;
 uniform float time;
 
 uniform sampler2D images[4];
+layout (binding = 0,rgba32f) uniform image2D backbuffer;
+//uniform image2DArray buffers;
 uniform float ratios[4];
 uniform float params[32];
 
@@ -20,11 +22,21 @@ vec4 image(int i) {
 	vec2 st = gl_FragCoord.xy/resolution.xy;
   st.x *= ratios[i];
   st.x += (1-ratios[i])*0.5;
+  st.x += 0.5*time;
   return texture2D(images[i],st);
 }
 
 void main (void) {
 	vec4 img1 = mix(image(0),image(1),sin(time));
 	vec4 img2 = mix(image(2),image(3),cos(time));
-  fragColor = mix(img1,img2,params[1]);
+  ivec2 P = ivec2(gl_FragCoord.xy);
+  vec4 buf = imageLoad(backbuffer,P);
+  buf.rg = buf.gr;
+  //buf.b = 0.0;
+  vec4 i = mix(img1,img2,0.5);
+  //P = ivec2(gl_FragCoord.xy);
+  imageStore(backbuffer,P,i);
+  i = mix(i,buf,0.8);
+  //i = image(0);
+  fragColor = i;
 }