diff --git a/renderer/bdpt.py b/renderer/bdpt.py
deleted file mode 100644
index ac6cae5..0000000
--- a/renderer/bdpt.py
+++ /dev/null
@@ -1,7 +0,0 @@
-"""
-    Bidirectional Path Tracer
-    Bidirectional volumetric path tracing method 
-    @author: Qianyue He
-    @date: 2023-2-20
-    TODO: A lot
-"""
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