Fix shader pass removing

Shaders/std/shadows.glsl

@@ -3,6 +3,9 @@
 uniform sampler2D shadowMap;
 uniform samplerCube shadowMapCube;
 
+// uniform sampler2DShadow shadowMap;
+// uniform samplerCubeShadow shadowMapCube;
+
 #ifdef _CSM
 uniform vec4 casData[shadowmapCascades * 4 + 4];
 #endif

blender/arm/assets.py

@@ -24,6 +24,7 @@ def reset():
     global shaders
     global shaders_last
     global shader_datas
+    global shader_passes
     global shader_cons
     assets = []
     khafile_defs_last = khafile_defs