adjust for aspect ratio

2013-06-11 22:27:13 -04:00 · 2013-06-11 22:27:13 -04:00 · 3793f70273
commit 3793f70273
parent c0eefab306
1 changed files with 2 additions and 1 deletions
--- a/example.rb
+++ b/example.rb
@ -26,7 +26,8 @@ class Example
      {
        vec2 scaled_pos = vec2((offset.x - screen_size.x / 2) / screen_size.x * 2,
                               (offset.y - screen_size.y / 2) / screen_size.y * 2);
-        pos_i = vec4(pos + scaled_pos, 0, 1);
+        pos_i = vec4(pos.x * screen_size.y / screen_size.x + scaled_pos.x,
+                     pos.y + scaled_pos.y, 0, 1);
        gl_Position = pos_i;
      }
    EOS