diff --git a/todo.txt b/todo.txt
index f925911..a2a37bb 100644
--- a/todo.txt
+++ b/todo.txt
@@ -1,3 +1,4 @@
-//- Move to spectral rendering.
-- Implement basic direct lighting w/ spherical lights.
+- Implement support for multiple light sources in a scene.
+- Implement shader parsing, and use in rendering.
+- Add gui display of rendering in progress.
 - Unit tests for scene parsing.
\ No newline at end of file