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-   Marine Aquarium 3 for Windows (https://www.feldoncentral.com/forums/forumdisplay.php?f=46)
-   -   [Bug: Unconfirmed] Could not find any compatible Direct3D Devices (https://www.feldoncentral.com/forums/showthread.php?t=4727)

Dale 02-03-2009 11:06 AM

Quote:

Originally Posted by Jim Sachs (Post 110383)
Unless they are trivial things to fix, hold off for now. I'm totally swamped.

OK, I'll hold it. It's related to this topic, so please do a couple of things:

1. Change this topic to "confirmed bug".

2. Let me know just before you start thinking about this topic, because the other issue is somewhat related.

[I will try to refine this issue, also, if I can dig up more hardware that helps]

feldon34 02-03-2009 11:36 AM

Is it really a bug if the graphics card has insufficient VRAM to run in 24-bit?

I have not followed the thread in detail btw.

Dale 02-03-2009 01:46 PM

Quote:

Originally Posted by feldon32 (Post 110393)
Is it really a bug if the graphics card has insufficient VRAM to run in 24-bit?

I have not followed the thread in detail btw.

In my opinion, it's a bug if
(1) MA3 knows there will be a problem.
(2) MA3 runs, regardless of that knowledge, AND
(3) MA3 therefore crashes.

Dale 02-04-2009 10:10 PM

Quote:

Originally Posted by feldon32 (Post 110393)
Is it really a bug if the graphics card has insufficient VRAM to run in 24-bit?

I have not followed the thread in detail btw.

Related observation: The PC referred to in this thread, so far, has 32MB VRAM, and maximum color depth of 24-bit.

I just installed MA3 on another "wimpy" PC with an Nvidia video card that has 32MB, but 32-bit color depth. MA3 runs fine at 1024x768, 32-bit. (About 18 fps at 32-bit and about 30 fps at 16-bit, P3-840).

So, it's not the "32MB VRAM".

Jim Sachs 02-04-2009 10:28 PM

It's not the lack of VRAM, it's the fact that it can't do Shaders.

Although VRAM may become a problem on low-end cards as I add more creatures and objects.

Dale 02-04-2009 10:43 PM

Quote:

Originally Posted by Jim Sachs (Post 110450)
It's not the lack of VRAM, it's the fact that it can't do Shaders.

Although VRAM may become a problem on low-end cards as I add more creatures and objects.

Are you indicating that the Intel 82810 can't do Shaders in 24-bit color depth, but can do Shaders in 16-bit depth?

Jim Sachs 02-04-2009 11:13 PM

The chip can't do them at all. The drivers must be trying to emulate them, and apparently not so successfully in 24-bit.

Anyway, I won't be spending any time chasing this. MA2.6 remains the Aquarium-of-choice for lesser equipment. The whole reason for MA3's existence is to take advantage of hardware improvements over the last 9 years.

Nicki 02-05-2009 09:38 AM

There's always the option of installing a new video card , if like me you had a desktop with very poor graphics . Maybe not an option if you own a number of older machines (the expense might not be worth it) , or you have a laptop of course . For me it was a simple and cost effective way to enjoy not only MA3 but a better performing system overall . There may be a few prospective customers who feel the same .

Dale 02-05-2009 09:40 AM

Quote:

Originally Posted by Jim Sachs (Post 110453)
The chip can't do them at all. The drivers must be trying to emulate them, and apparently not so successfully in 24-bit.

Anyway, I won't be spending any time chasing this. MA2.6 remains the Aquarium-of-choice for lesser equipment. The whole reason for MA3's existence is to take advantage of hardware improvements over the last 9 years.

I never suggested that you should spend any time at all, trying to make MA3 work with older hardware.

My suggestion was/is intended to assure that MA3 does not CRASH when confronted with older hardware or drivers that don't meet MA3 requirements.

Of course, this isn't as important as the simulation. But I think crashes are worth chasing at some point.


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