internal GLHardwareOcclusionQuery( BaseGLSupport glSupport )
{
this._glSupport = glSupport;
isSupportedARB = _glSupport.CheckMinVersion( GL_Version_1_5 ) || _glSupport.CheckExtension( GL_ARB_occlusion_query );
isSupportedNV = _glSupport.CheckExtension( GL_NV_occlusion_query );
if ( isSupportedNV )
{
Gl.glGenOcclusionQueriesNV( 1, out this.queryId );
}
else if ( isSupportedARB )
{
Gl.glGenQueriesARB( 1, out this.queryId );
}
}