Implement translation rotation zoom using uniform buffers, improvement?

2021-02-25 04:14:52 +01:00
parent 32bfab2e02
commit 37e26dcb07
6 changed files with 76 additions and 12 deletions
@@ -6,6 +6,8 @@ in vec2 vWinSize [];
 out vec2 gTexPos;

 uniform vec2 translation;
+uniform float zoom;
+uniform float rotation;

 vec2 rotBy( float rot, vec2 v)
 {
@@ -18,8 +20,8 @@ vec2 rotBy( float rot, vec2 v)
 void main()
 {
  vec2 cPos = vec2(translation.x / 250 , translation.y /250 );
-  float zoom = vParams[0].w;
-  float rot  = 0 - vParams[0].z;
+//  float zoom = vParams[0].w;
+  float rot  = 0 - rotation;
      
  float x = vWinSize[0].x / (500*zoom) ;
  float y = vWinSize[0].y / (500*zoom) ;