Hardware-Acceleration

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Hardware-Acceleration
by EMP3ROR on Friday 11/May/2007, @10:23

Why don't you use more hardware-acceleration? e.g. Marble, Krita, Kalzium

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Re: Hardware-Acceleration
by Jakob Petsovits on Friday 11/May/2007, @12:48

Krita and Kalzium actually do use OpenGL, and all the hardware acceleration that comes with it.

Marble's objective is not to create an alternative for Google Earth, but to create a reusable geo-location widget for any application that might want to use it, minimize the disk space it needs, and make it as widely available as possible. Because of that, Marble uses a rendering algorithm that is totally different to "real 3D" like offered by OpenGL, so it can't take advantage of OpenGL by design. On the other hand, it doesn't have a pressing need for it either.

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Re: Hardware-Acceleration
by EMP3ROR on Friday 11/May/2007, @13:24

ah, ok
I asked because I read this (but it's not really up to date): http://cniehaus.livejournal.com/24404.html

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Re: Hardware-Acceleration
by Carsten Niehaus on Saturday 12/May/2007, @03:55

I guess you mean this sentence?

"PS: The rendering was done without hardware acceleration but is very fast"

That is simply because back then I had no 3D-card in my PC --> no hw-acceleration :) I simply wanted to say that it is really fast even without it!

Currently you get 30--50fps without 3d-acceleration and _much_ more with.

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Re: Hardware-Acceleration
by EMP3ROR on Saturday 12/May/2007, @04:05

Great! :)

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Re: Hardware-Acceleration
by Torsten Rahn on Saturday 12/May/2007, @01:46

> On the other hand, it doesn't have a pressing need for it either.

Right. However I have a development path that also includes hardware acceleration in mind already. Due to more important Marble tasks I estimate that I won't start to work on this before III/2007.

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Re: Hardware-Acceleration
by Brandybuck on Saturday 12/May/2007, @11:14

Hardware acceleration is great. But just remember that most of it comes at the expense of having to use a proprietary video driver.

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Re: Hardware-Acceleration
by Jakob Petsovits on Tuesday 15/May/2007, @02:11

Actually, no. The needs for applications like Krita or Kalzium, or for compositing window managers like Compiz/Beryl are modest enough that any lower-scale graphics accelerator will do perfectly fine as well, and still provide enormous speed improvements.

I am writing this from my laptop with integrated Intel graphics, which does not need proprietary graphics drivers at all, and I can play all those Linux games with sufficient frame rates, my Beryl (when it's activated at all) feels smooth and handsome, and accelerated apps are snappy as one could imagine.

It's just a question of selecting and supporting the right hardware from the right vendor. I actually paid more for this configuration than I would have for an ATI or nVidia card, but it's well worth it.

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