njColorBlendingMode( NJD_SOURCE_COLOR , NJD_COLOR_BLENDING_ONE );
njColorBlendingMode( NJD_DESTINATION_COLOR, NJD_COLOR_BLENDING_ZERO );
njAccumlationBufferMode( OFF, ON );
njSetTextureNum( 0 );
njDrawTexture3DEx( v, 4, TRUE );
njColorBlendingMode( NJD_SOURCE_COLOR , NJD_COLOR_BLENDING_ZERO );
njColorBlendingMode( NJD_DESTINATION_COLOR, NJD_COLOR_BLENDING_SRCCOLOR );
njAccumlationBufferMode( OFF, ON );
njSetTextureNum( 1 );
njDrawTexture3DEx( v, 4, TRUE );
njColorBlendingMode( NJD_SOURCE_COLOR , NJD_COLOR_BLENDING_SRCALPHA );
njColorBlendingMode( NJD_DESTINATION_COLOR, NJD_COLOR_BLENDING_INVSRCALPHA );
njAccumlationBufferMode( ON, OFF );
njDrawTexture3DEx( v, 4, TRUE );
njAccumlationBufferMode( OFF, OFF );