Ian Romanick wrote:

> The issue is that Maya is requesting at least 23-bits of Z-buffer.  In
> 16-bit mode, we only have 16-bits of Z-buffer, so it can't find a visual.

Just for grins you could hack glXChooseVisual so that a 16-bit Z buffer
satisfies the request for 23 bits.


> On the Radeon, is depth bpp == color bpp a hardware limitation or just the
> way the drivers were done?

I think it's a limitation of some hardware, but not Radeon (IIRC).

In general, it's kind of natural to increase Z buffer depth with color
depth.  If an application cares about color precision then it probably
cares about Z precision too (DCC).  Similarly, an app that isn't sensitive
to color precision probably isn't sensitive to Z precision either (some
games).

-Brian

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