[Paraview] Opacity < 1 significantly slows things down

[Utkarsh Ayachit]

When objects with opacity < 1 are involved, ParaView uses depth-peeling to
ensure that the primitives are rendered in correct order. Depth peeling is a
multipass rendering technique which uses frame buffers etc. and hence is
slower than rendering without depth peeling at all. To verify that it's
depth peeling that's slowing things down, go to "Edit|settings" and in the
"Render View" options, uncheck Enable Depth Peeling.

Utkarsh

On Mon, May 11, 2009 at 4:43 PM, David Doria <daviddoria at gmail.com> wrote:

> If I set the opacity of a file with around 50,000 cells to any value < 1,
> it goes from working very smoothly to being super super choppy. Is this the
> expected behavior? I tried immediate mode rendering on and off with no
> apparent difference.
>
> Thanks,
>
> David
>
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