TEST 32 vs. 64

[3dkad]

Hi all,
I don't know if i should post that image here...
I don't know either if i have expected too much, or i have just believed in the very bright future of the new technologies, but definitely i didn't expect that:


*** YOU CAN SEE A COUPLE OF PICTURES WITH SOME TIME RESULTS AT MY NEXT POST IN THE SAME TOPIC. ***

The same scene, the same preset, the same machine...

I wish u all good luck...May be the real difference will be by Vista...

[priad]

[plastic_]

what do you mean? where does the time difference come from? does the scene use a lot of memory?
did you expect it to be even faster with 64bit?

(i see differences in reflections and/or filtering)

[3dkad]

The first image is renderd with 32 bit softwares, the second is rendered with x64 V-ray on x64 MAX on x64 Win XP...I expected to be faster with the x64 softwares...
The CPU is AMD Athlon 64 FX 60.

[plastic_]

well it shouldn't really be faster, unless you hit the memory limit of 2-3 GB of 32bit.

[3dkad]

Sorry guys - the mistake up was mine...The first image is rendered with MAX 8.0.
But here is something that is even more worse then the little difference...I don't know any more

[re:FORM]

x64 doesn't offer any speed improvements in rendering, it only allows you to render scenes that you would never dreamt of rendering in 32bit.

Try making a sphere(make the subdivisions max around 200 i think), copy it (not instance) 10 times horizontally, 10 vertically, and 10 times back again, then copy those 1000 spheres again 10 times or more.... now try to render it at a resolution of 10,000 x 10,000.... x64 will (might!) render it no problem... 32bit will look at you in a strange way, laugh, and go off and do something more important instead.

[3dkad]

That is a reasonable answer...thanx re:Form
Maybe i relay to much to the Numbers...i must not take the difference between 32 and 64 so general
Thanx once more time!!!

[vlado]

If you think about it, regardless of whether an application is 32-bit or 64-bit, it is still the same processor doing the same calculations. So you can't really expect a great difference in performance. However, like noted by re:FORM, the way they handle large amounts of data is very different.

Best regards,
Vlado

[jujubee]

Just being able to open a really large scene alone and to work with it - makes up for differences in render time.

[studioDIM]

I noticed there are differences in the two images.
The shower curtain exhibits some artifacting in the GI phase, it seems, which differ from max 9 32 and 64 bit.
Wouldn't know why...

Lele

[3dkad]

@ studioDIM - i have noticed it also...No idea why...the same preset, the same scene, the same CPU , as Vlado mentioned before...

[jujubee]

Is it just me - or does the white countertop seems a hair darker in the last two images as well?

[vlado]

Some differences are to be expected since the compiler generates different code for 32- and 64-bit platforms. The result is very similar, but some details may be different - e.g. the generated (quasi) random numbers will be slightly different in general, resulting in different noise patterns.

Best regards,
Vlado

[davision]

What I think is weird -- is that Max 9 32 renders faster than Max 8-32 -- quite a bit faster.

Why does that happen?