Enable strict mode for shaders on some nvidia drivers. Should hopefully prevent some issues where nvidia GLSL compilers let things slide that should be illegal.

src/scripts/graphics.lua

@@ -1295,7 +1295,8 @@ do
 #define number float
 #define Image sampler2D
 #define extern uniform
-#define Texel texture2D]]
+#define Texel texture2D
+#pragma optionNV(strict on)]]
 
 	local GLSL_UNIFORMS = [[
 #define TransformMatrix gl_ModelViewMatrix

src/scripts/graphics.lua.h

@@ -6276,7 +6276,9 @@ const unsigned char graphics_lua[] =
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