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-rw-r--r--src/renderergl1/tr_shader.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/renderergl1/tr_shader.c b/src/renderergl1/tr_shader.c
index 2a66afd0..34d6d64e 100644
--- a/src/renderergl1/tr_shader.c
+++ b/src/renderergl1/tr_shader.c
@@ -1569,6 +1569,23 @@ static qboolean ParseShader( char **text )
return qfalse;
}
+ if ( r_greyscale->integer )
+ {
+ float luminance;
+
+ luminance = LUMA( shader.fogParms.color[0], shader.fogParms.color[1], shader.fogParms.color[2] );
+ VectorSet( shader.fogParms.color, luminance, luminance, luminance );
+ }
+ else if ( r_greyscale->value )
+ {
+ float luminance;
+
+ luminance = LUMA( shader.fogParms.color[0], shader.fogParms.color[1], shader.fogParms.color[2] );
+ shader.fogParms.color[0] = LERP( shader.fogParms.color[0], luminance, r_greyscale->value );
+ shader.fogParms.color[1] = LERP( shader.fogParms.color[1], luminance, r_greyscale->value );
+ shader.fogParms.color[2] = LERP( shader.fogParms.color[2], luminance, r_greyscale->value );
+ }
+
token = COM_ParseExt( text, qfalse );
if ( !token[0] )
{