Upgrading from Win XP-32 bit to Win 7-64 bit

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Upgrading from Win XP-32 bit to Win 7-64 bit

Postby Vectrotek » Thu Nov 03, 2016 10:37 am

I'm about to do this but the thought of half my apps not working makes me nervous..
What should one be aware of and what do most Irrlicht users use?
What have people experienced with this major transition?
What are other 32 bit vs 64 bit issues?
Where can one find general info on this?
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Re: Upgrading from Win XP-32 bit to Win 7-64 bit

Postby CuteAlien » Thu Nov 03, 2016 11:10 am

Main troubles are if you hadn't been careful in serialization (loading&saving binary data). Besides that it's usually rather trivial. I have to admit I haven't even tested Irrlicht on 32-bit for a long time (still got an old computer for that... but haven't booted it yet this year).
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Re: Upgrading from Win XP-32 bit to Win 7-64 bit

Postby Mel » Fri Nov 04, 2016 12:11 am

I think you shouldn't have any issues, Irrlicht is fairly OS agnostic in that meaning.
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Re: Upgrading from Win XP-32 bit to Win 7-64 bit

Postby Vectrotek » Fri Nov 04, 2016 11:20 pm

Thanks guys..
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Re: Upgrading from Win XP-32 bit to Win 7-64 bit

Postby Vectrotek » Sun Nov 06, 2016 6:09 pm

The transition from XP to Win 7 64 bit was reasonably painless..
I had to get new 64 bit drivers for my Ge-force 9600GT.
I can't use my favorite and ancient File-manager anymore, so now I use Total Commander..
My ASUS motherboard seems to handle it all in spite of problematic drivers..
I did need one 500Mb update for Windows 7 professional 64 bit..

My computer is still very old, so I'll wait for a hardware upgrade before I try really serious stuff..
Currently working on Accurate Specularity in Deferred Rendering..
I'm trying to get the Frgament Positions encoded into RGB in a similar way that depth is.
The problem with this is that you need THREE sets of RGB buffers for that if R and G only won't
be good enough.. (will need a lot of tests an tabulating setups) Just started though..
Also with Diffuse, RC Normals, Depth, Fragment Position and other
materials parameters I'd probably run out of Image channels to the shader quickly..
Anyhow, I can now look at all those cool things you need 64 bit for like "Mad Shaders" etc..
I started downloading these 64 bit things a while ago hoping to have something to work
once I go 64 bit.. Now I'm glad I did..
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Re: Upgrading from Win XP-32 bit to Win 7-64 bit

Postby devsh » Mon Nov 07, 2016 6:31 am

you dont need to store fragment positions in your GBuffer you can reconstruct them from linearly interpolating between the pixel's position on the far plane of the camera frustum and camera position using the depth buffer.
We chose to stream mesh data from Multiple OpenGL Contexts in many threads and do the other things, not because they are easy, but because they are hard! - JFK
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Re: Upgrading from Win XP-32 bit to Win 7-64 bit

Postby Vectrotek » Mon Nov 07, 2016 8:45 pm

Thanks. I'll look into that. I'm wondering though, where would I look for the math?
I haven't seen anything like that (as much sense as it makes) in "Deferred" net searches.
(now I'll have some keywords).
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Re: Upgrading from Win XP-32 bit to Win 7-64 bit

Postby christianclavet » Mon Nov 07, 2016 11:54 pm

The only issue I see from 32bit to 64bit are OLD activex component that will not work in a 64bit system. Except that everything that run in 32bit will still run fine. You'll also need to seek if possible for 64bit drivers for the parts/accessories you have.
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Re: Upgrading from Win XP-32 bit to Win 7-64 bit

Postby Vectrotek » Wed Nov 09, 2016 9:56 am

Thanks! I think I've got the thing working now.
Still some sound card problems but that's minor.
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