rbw.calculations = true;
rbw.faces = EnumSet.noneOf( ForgeDirection.class );
if ( prevLight != null && rbw.similarLighting( blk, rbw.blockAccess, x, y, z, prevLight ) )
rbw.populate( prevLight );
else
{
instance.setRenderColor( color );
rbw.renderStandardBlock( instance.getBlock(), x, y, z );
instance.setRenderColor( 0xffffff );