Hello,
is there any chance to have 3D acceleration for R300 based cards in OS4 ?
I'm using an Ati 9700 and the card is not supported by warp3d.
If it is planned, hum,.. , when will we see the first support in OS4?

Have a nice day

----------------------------
I want spherocracy

@henriavelabarbe

Ive read on numerous posts that it will be supported at the moment Hyperion are working on drivers for the 9200 (wot ever core that is r200 i think).
So the answer to you question which everyone else will prob tell you is when its done!

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@henriavelabarbe

gday i have the ati radeon 9800 not sure if its R300 or R350 but i asked this question b4 and was told it will come later but at an unknown time as theres the R200 250 to be done yet so be patiant and we will get the drivers

@henriavelabarbe

I can't tell you any specifics. The support will most likely come rather late, in the form of an OpenGL driver, not Warp3D.

No ETA yet.

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@Rogue

How advanced will the support be for R3xx cards?
What will be there for OS4 final and what will not yet be supported?

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@Rogue

Does this mean that Mesa is going to skip Warp3D and you write new drivers for it?

@Rogue

Is Forefront Technologies still in charge for writing Ati drivers for OS4 ?

@henriavelabarbe
Quote:

Is Forefront Technologies still in charge for writing Ati drivers for OS4 ?

Forefront does the 2D drivers, not the 3D drivers.

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@Joshua

And the driver work well for me
thanks to you

@Rogue

What is needed to become an official OS4 developper?
If someone with good will and enough free time want to help in giving *primitive* 3D support for a specific card,
are you ready to let him try ?

@Samwel
@Mr_Capehill

I guess a clarification is in order.

As I already said at AmiGBG, we are for the time being canning any plans for a custom API and will go with Mesa. There are several reasons for this, but mostly time - it would take too much time at this point to plan and maintain an API.

The original motiviation for a custom API was a) full control over what goes in, and b) future development of a 3D-Hardware based graphics system.

a) is a plus because OpenGL is a rather slow mover, and cannot always keep up with current developments (for example, there is still no unified support for curved surfaces in OpenGL 2.0). Also, OpenGL 2.0 did definitely not go as far as I did want it to go.

b) is not too difficult to build upon OpenGL itself, especially with rectangular texture extensions. We are still planning such a system for OS 4.1, based on the PDF 1.4 surface composition model (something in the line of Cairo Graphics).

Back to 3D, Warp3D will probably end with the R200 driver. The next thing we will attempt is to port Mesa to use Warp3D as a hardware renderer backend (in fact this work has already been started). Once that part is completed, the next step will be to write direct chipset drivers for Mesa. This will include the Voodoo cards, R1x0, R2x0, R3x0 and an as of yet undisclosed graphics card. Especially the latter will have very good support for vertex and pixel shaders. We will try to support as much of these as possible, including the ARB and OGL20 extensions wherever possible.

Using Mesa will allow us to directly go ahead with T&L support which we urgendtly need, and add things like the afforementioned shaders via the ARB extensions (or maybe ATI extensions, as the R200 cannot support the ARB fragment shader extension).

Hope that answers a few questions

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@henriavelabarbe

Quote:

If someone with good will and enough free time want to help in giving *primitive* 3D support for a specific card,

The clear answer is "it depends" It is always possible.

What card are you thinking about?

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@Rogue

Thanks for the detailed clarification. This is very apreciated.


Quote:

We are still planning such a system for OS 4.1, based on the PDF 1.4 surface composition model (something in the line of Cairo Graphics).

This sounds very interesting.

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@Rogue

Yeah, thanks for the answer. It clarified the thing.

I am looking very much into Mesa, although I must admit that I don't master even MiniGL yet ;)

I think you are making a good decision when using Mesa instead of your totally own API, which in the worst case might mean even more workload on your shoulders.

@Rogue

Quote:

What card are you thinking about?

Maybe Ati 9700 or/and Ati X800 as I own those cards
But with my humble capacity..

I had a look at the Cairo graphics and some Cairo based screenshots. It would be good to have similar features in AmigaOS.

Using the 3D chip as "superblitter" is a very Amiga-ish way to do screen rendering

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@henriavelabarbe

Forget the 9700
while testing kernel 2.6.11, the screen become full of rubish.
After a reboot, same result in OS4, screen full of pink dots and lines.
Removed from A1 and put on a PC give same result and even crash in Windows XP,
beside that the card seems extremly hot, a lot morethan usual.
Time to give a chance to an old 3DFX..
Don't know if I will dare trying the X800 in A1..

@Giovanni

Quote:

Giovanni wrote: I had a look at the Cairo graphics and some Cairo based screenshots. It would be good to have similar features in AmigaOS. Using the 3D chip as "superblitter" is a very Amiga-ish way to do screen rendering

It would but today I'd say do it through MESA or OpenGL.

@BrianK

Quote:

It would but today I'd say do it through MESA or OpenGL.

Yep. This is actually what I meant. Not programming the hardware directly, this would be mad

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@henriavelabarbe

Quote:

Maybe Ati 9700 or/and Ati X800 as I own those cards

Out of curiosity, is the x800 an AGP version? Have you ever tried it in AmigaOne/OS4? I'd like to know if the x800 likes the 2d driver, but I can't afford the card myself to try.

Last edited by billt on 27-Jul-2005 at 09:07 PM.

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@Rogue

Thanks for the answer. It sure did explain what I wondered about.

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