Add 3d lid driven cavity OpenGL visualization

1 files changed, 1 insertions, 1 deletions

diff --git a/trugfeuer_2d_gl_interop.py b/trugfeuer_2d_gl_interop.py
index cfdcc17..6d66efa 100644
--- a/trugfeuer_2d_gl_interop.py
+++ b/trugfeuer_2d_gl_interop.py
@@ -151,7 +151,7 @@ void main() {
         1.
     );
 
-    color = fire(1.0-particles[2]);
+    color = fire(1.0-particles[3]);
 }""").substitute({
     'size_x': lattice_x,
     'size_y': lattice_y