Added Metric For GrooveRadar to disable bits of it, This should fix voodoo3 problems (does for me :D)

stepmania/Themes/default/metrics.ini

@@ -1613,6 +1613,7 @@ Label4OffsetX=100	// freeze
 Label4OffsetY=66
 Label5OffsetX=120	// chaos
 Label5OffsetY=-20
+DisableRadar=0     // turn this to 1 if you are experiencing trouble with the groove radar (voodoo3's)
 
 [GrooveGraph]
 EdgeWidth=

stepmania/src/GrooveRadar.cpp

@@ -24,6 +24,7 @@
 
 #define LABEL_OFFSET_X( i )	THEME->GetMetricF("GrooveRadar",ssprintf("Label%dOffsetX",i+1))
 #define LABEL_OFFSET_Y( i )	THEME->GetMetricF("GrooveRadar",ssprintf("Label%dOffsetY",i+1))
+#define DISABLE_RADAR THEME->GetMetricI("GrooveRadar","DisableRadar")
 
 
 float RADAR_VALUE_ROTATION( int iValueIndex ) {	return PI/2 + PI*2 / 5.0f * iValueIndex; }
@@ -102,6 +103,8 @@ GrooveRadar::GrooveRadarValueMap::GrooveRadarValueMap()
 
 void GrooveRadar::GrooveRadarValueMap::SetFromNotes( PlayerNumber pn, Notes* pNotes )		// NULL means no song
 {
+	if(DISABLE_RADAR == 1) // if the theme says not to disable it
+		return;
 	if( pNotes != NULL )
 	{
 		for( int c=0; c<NUM_RADAR_CATEGORIES; c++ )
@@ -128,16 +131,21 @@ void GrooveRadar::GrooveRadarValueMap::Update( float fDeltaTime )
 {
 	ActorFrame::Update( fDeltaTime );
 
+	if(DISABLE_RADAR != 1)
+	{
 		for( int p=0; p<NUM_PLAYERS; p++ )
 		{
 			m_PercentTowardNew[p] = min( m_PercentTowardNew[p]+4.0f*fDeltaTime, 1 );
 		}
 	}
+}
 
 void GrooveRadar::GrooveRadarValueMap::DrawPrimitives()
 {
 	ActorFrame::DrawPrimitives();
 
+	if(DISABLE_RADAR == 1) // if they disabled the radar
+		return; // get out of here...
 	// draw radar filling
 	const float fRadius = m_sprRadarBase.GetZoomedHeight()/2.0f*1.1f;