diff --git a/panda/src/shader/Sources.pp b/panda/src/shader/Sources.pp
index 7ab94d9425..a7089a564c 100644
--- a/panda/src/shader/Sources.pp
+++ b/panda/src/shader/Sources.pp
@@ -6,16 +6,22 @@
   #define TARGET shader
   #define LOCAL_LIBS \
     putil express display graph sgattrib light sgraphutil
+    
+  #define COMBINED_SOURCES $[TARGET]_composite1.cxx $[TARGET]_composite2.cxx    
 
   #define SOURCES \
-    casterShader.I casterShader.cxx casterShader.h config_shader.cxx \
-    config_shader.h outlineShader.cxx outlineShader.h \
-    planarReflector.cxx planarReflector.h projtexShader.cxx \
-    projtexShader.h projtexShadower.cxx projtexShadower.h shader.I \
-    shader.cxx shader.h shaderTransition.I shaderTransition.cxx \
-    shaderTransition.h spheretexHighlighter.cxx spheretexHighlighter.h \
-    spheretexReflector.cxx spheretexReflector.h spheretexShader.cxx \
-    spheretexShader.h spotlightShader.cxx spotlightShader.h
+     casterShader.I casterShader.h config_shader.h outlineShader.h  \
+     planarReflector.h projtexShader.h projtexShadower.h shader.I  \
+     shader.h shaderTransition.I shaderTransition.h  \
+     spheretexHighlighter.h spheretexReflector.h  \
+     spheretexShader.h spotlightShader.h  \
+
+  #define INCLUDED_SOURCES  \
+     casterShader.cxx config_shader.cxx outlineShader.cxx  \
+     planarReflector.cxx projtexShader.cxx projtexShadower.cxx  \
+     shader.cxx shaderTransition.cxx spheretexHighlighter.cxx  \
+     spheretexReflector.cxx spheretexShader.cxx  \
+     spotlightShader.cxx 
 
   #define INSTALL_HEADERS \
     casterShader.I casterShader.h outlineShader.h planarReflector.h \
diff --git a/panda/src/shader/shader_composite1.cxx b/panda/src/shader/shader_composite1.cxx
new file mode 100644
index 0000000000..7e26c8c863
--- /dev/null
+++ b/panda/src/shader/shader_composite1.cxx
@@ -0,0 +1,7 @@
+
+#include "casterShader.cxx"
+#include "config_shader.cxx"
+#include "planarReflector.cxx"
+#include "projtexShader.cxx"
+#include "projtexShadower.cxx"
+#include "spotlightShader.cxx"
diff --git a/panda/src/shader/shader_composite2.cxx b/panda/src/shader/shader_composite2.cxx
new file mode 100644
index 0000000000..f02d5f82aa
--- /dev/null
+++ b/panda/src/shader/shader_composite2.cxx
@@ -0,0 +1,8 @@
+
+#include "shader.cxx"
+#include "outlineShader.cxx"
+#include "shaderTransition.cxx"
+#include "spheretexHighlighter.cxx"
+#include "spheretexReflector.cxx"
+#include "spheretexShader.cxx"
+