First pass implementing exponentially fading lighting

2021-02-22 13:45:59 +01:00
parent c75cda639b
commit e855d303e8
10 changed files with 117 additions and 49 deletions
@@ -1,12 +1,15 @@
 #version 430 core
-in vec4 gColor;
-in vec2 cenPosTrans;
-in float gRad;
+in vec2 cenPosT;
+in vec2 gParams;
 out vec4 fColor;

 void main()
 {
  vec2 pos = gl_FragCoord.xy;
-  float dist = max(0 , 1 - 2 * distance(pos,cenPosTrans) / (gRad));
-  fColor = vec4( gColor.xyz , pow(gColor.z*dist,2) );
+  float dist = min(1 , 2*distance(pos,cenPosT) / (gParams.x));
+  //float c = pow(gParams.y*dist,2);
+  float c = pow(1-dist,2);
+  fColor = vec4( c,c,c ,c  );
+//  fColor = vec4( 1,0,0 ,  1);
+//  fColor = vec4( 1,0,0 , pow(dist,2) );
 }