minor adjustments for new model
minor adjustments for new model

Eric89GXL/vispy,michaelaye/vispy,drufat/vispy,drufat/vispy,ghisvail/vispy,michaelaye/vispy,Eric89GXL/vispy,ghisvail/vispy,michaelaye/vispy,Eric89GXL/vispy,ghisvail/vispy,drufat/vispy