"error: cannot allocate memory for HDR map" ???

V-Ray for 3ds Max V-Ray for 3ds Max :: General
1

Hi,

As usual, I`m in the middle of a battle and came across problems.
I was modeling and texturing a complex building on one machine (XP system, max 5.1, 1,5GB RAM), everything rendered and worked fine. There were interpolated glossies reflecting a huge HDR sky map.

But when I took the files to another computer (W2k, max5.1, 2GB RAM, faster PC) - it tells me “error: cannot allocate memory for HDR map” when I try to render. I also can`t see this HDR map in the material editor.

Other (smaller) maps work fine on both PCs.

I`ve tried bitmap pager with various settings, no luck.

I know it`s a huge map, but It was working on a slower PC with less memory, so why it doesn`t show on faster PC with more memory? What is going on?

Please help, thanks,

2

how big is huge?

3

Hard to tell, I can`t get the info - it just doesn`t load.

Probably it`s about 8`000 or even 15`000 pix wide.

In megs - it`s a 15MB HDR file, so it`s not the biggest one.

4

Mmmm. Try checking Dynamic memory perhaps? Or try disabling the Virtual Frame Buffer - both Max’s own and Vray’s.

Can anyone else help? Never seen this b4.

5

Well, dynamic does not work.
This thing happens first in material editor - it just doesn`t load the HDR map, so changing render setting won`t work…

I`ve just downloaded HDR shop and resized the HDR map.
Oryginally it was 9000x4500, when I resized it to 7000x3500 it started working - MAX xan load it. So the day is saved, but them problem is still unsloved - I don`t know why there`re limits to size of HDR maps on one machine, whilst everything works swell on other.

So, topic is still under a question mark.

6

Try adjusting your Bitmap Pager size in max properties.

7

Yeah, I`ve tried that. Gone up to 250MB with it still with no luck.
However, I`m not sure if I set it up correctly, I`ve fiddled with the bitmap pager defaults.
What bitmap pager`s settings do you recommend (there are three spinners)? Can you guide me with that?

Cause right now I came to conclusion that this problem is system based. XP lets you handle bigger bitmaps than W2k. Does this theory make any sense?

8

mmm.. you could try render with Backburner. close Max and disable frame buffer. ¿?

9

The bitmap pager has no effect on the VRayHDR texture; whether or not the operating system will allocate the requested memory is very system-dependent… reducing the size of the map will probably help.

Best regards,
Vlado

10

i have run into this problem a fair bit.
Resizing the hdri in photoshop cs2 fixes the problem

11

Yeah, that`s what I finally did in HDR shop.
Does anyone else have experience with handling large HDRs in W2k?

I have noticed one more thing:
on my XP system - not only that it can open HDR map in full (9000px) size in MAX, but also I can copy the HDR material in the material editor to a different slot and it works!
on my W2k system - I had to reduce the size of the HDR to 7000px, it works, but when I want to copy it to another slot it`s black. system won`t load it anymore to any other slot.

Is there a way of setting Windows differently, so I could avoid this problems on W2k, or is it just a “default” problem in W2k?

I guess the same will be with the limits to bitmap and render sizes - no problems on XP, but many problems and limits on W2k?