#define SAVEGAME_COMMENT_LENGTH 39 ///< max comment length of savegame in menu
#define MAX_CLIENTNETWORKEYES 16 ///< max number of locations that can be added to pvs when culling network entities (must be at least 2 for prediction)
#define MAX_LEVELNETWORKEYES 512 ///< max number of locations that can be added to pvs when culling network entities (must be at least 2 for prediction)
-#define MAX_OCCLUSION_QUERIES 4096 ///< max number of GL_ARB_occlusion_query objects that can be used in one frame
+#define MAX_OCCLUSION_QUERIES 4096 ///< max number of query objects that can be used in one frame
#define CRYPTO_HOSTKEY_HASHSIZE 8192 ///< number of hash buckets for accelerating host key lookups
#define MAX_NETWM_ICON 352822 // 16x16, 22x22, 24x24, 32x32, 48x48, 64x64, 128x128, 256x256, 512x512
cvar_t r_shadow_bouncegrid_static_spacing = {CVAR_SAVE, "r_shadow_bouncegrid_static_spacing", "64", "unit size of bouncegrid pixel when in static mode"};
cvar_t r_coronas = {CVAR_SAVE, "r_coronas", "0", "brightness of corona flare effects around certain lights, 0 disables corona effects"};
cvar_t r_coronas_occlusionsizescale = {CVAR_SAVE, "r_coronas_occlusionsizescale", "0.1", "size of light source for corona occlusion checksum the proportion of hidden pixels controls corona intensity"};
-cvar_t r_coronas_occlusionquery = {CVAR_SAVE, "r_coronas_occlusionquery", "0", "use GL_ARB_occlusion_query extension if supported (fades coronas according to visibility) - bad performance (synchronous rendering) - worse on multi-gpu!"};
+cvar_t r_coronas_occlusionquery = {CVAR_SAVE, "r_coronas_occlusionquery", "0", "fades coronas according to visibility"};
cvar_t gl_flashblend = {CVAR_SAVE, "gl_flashblend", "0", "render bright coronas for dynamic lights instead of actual lighting, fast but ugly"};
cvar_t r_editlights = {0, "r_editlights", "0", "enables .rtlights file editing mode"};
cvar_t r_editlights_cursordistance = {0, "r_editlights_cursordistance", "1024", "maximum distance of cursor from eye"};