Hi Sajjad,
Sajjadul Islam wrote:
> Hello,
>
> It was recommended early in the tutorial that for performance critical
> application it is recommended to mention different FieldMasks that will
> be changed during the
> beginEditCP(); ........ endEditCP(); But later it is not specified in
> the tutorial.
>
> The tutorial titled "Windows and viewports" i have encountered several
> instances where the FieldMasks are not specified. I included them in my
> code and it compiled and ran OK even though i wasnt sure if i m doing
> that right.
>
> And in the following code snippet i didnt find any corresponding
> FieldMask for setting size of the viewport:
>
>
> beginEditCP(leftViewport, Viewport::CameraFieldMask |
> Viewport::BackgroundFieldMask |
> Viewport::RootFieldMask
> );
> leftViewport->setCamera(leftCamera);
> leftViewport->setBackground(leftBkg);
> leftViewport->setRoot(scene);
> leftViewport->setSize(0,0,0.5,1);
> endEditCP(leftViewport, Viewport::CameraFieldMask |
>
> Viewport::BackgroundFieldMask |
> Viewport::RootFieldMask
> );
The size in the Viewport is stored as 4 separate values (left, right, top,
bottom). setSize() is just a convenience function, therefore it doesn't have a
FieldMask by itself.
Dirk
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