First implementation of quadratic bezier curve shader

2021-03-12 15:25:07 +01:00
parent 6f1f817ed3
commit 0489a092bc
21 changed files with 372 additions and 37 deletions
@@ -0,0 +1,16 @@
+#version 430 core
+in vec2 cenPosT;
+in vec2 gParams;
+out vec4 fColor;
+
+void main()
+{
+  vec2 pos = gl_FragCoord.xy;
+  float dist = min(1 , 2*distance(pos,cenPosT) / (gParams.x));
+  //float c = pow(gParams.y*dist,2);
+  float c = gParams.y * pow(1-dist,2);
+  //float c = gParams.y;
+  fColor = vec4( c,c,c ,c  );
+//  fColor = vec4( 1,0,0 ,  1);
+//  fColor = vec4( 1,0,0 , pow(dist,2) );
+}