-const std::string BLOOM_BLUR_STRENGTH_PROPERTY_NAME( "BlurStrengthProperty" );
-
-const std::string BLOOM_THRESHOLD_PROPERTY_NAME( "uBloomThreshold" );
-const std::string RECIP_ONE_MINUS_BLOOM_THRESHOLD_PROPERTY_NAME( "uRecipOneMinusBloomThreshold" );
-const std::string BLOOM_INTENSITY_PROPERTY_NAME( "uBloomIntensity" );
-const std::string BLOOM_SATURATION_PROPERTY_NAME( "uBloomSaturation" );
-const std::string IMAGE_INTENSITY_PROPERTY_NAME( "uImageIntensity" );
-const std::string IMAGE_SATURATION_PROPERTY_NAME( "uImageSaturation" );
+const char* const BLOOM_BLUR_STRENGTH_PROPERTY_NAME = "BlurStrengthProperty";
+const char* const BLOOM_THRESHOLD_PROPERTY_NAME = "uBloomThreshold";
+const char* const RECIP_ONE_MINUS_BLOOM_THRESHOLD_PROPERTY_NAME = "uRecipOneMinusBloomThreshold";
+const char* const BLOOM_INTENSITY_PROPERTY_NAME = "uBloomIntensity";
+const char* const BLOOM_SATURATION_PROPERTY_NAME = "uBloomSaturation";
+const char* const IMAGE_INTENSITY_PROPERTY_NAME = "uImageIntensity";
+const char* const IMAGE_SATURATION_PROPERTY_NAME = "uImageSaturation";