The forest scene cause a mem allocation error - Polyloop

dlk30341 · 23rd December 2005, 02:01

As stated above...when trying to render the forest scene I get a memory allocation error. So far no other scene has caused this.

C5P - update v2

Thomas · 23rd December 2005, 11:46

How much memory do you have on your computer ?

dlk30341 · 23rd December 2005, 16:19

4 gigs/3.2ghz/Win Xpro.

I'm about 99% sure it's not a memeory issue.....the last couple pics I did were JAMMED with Poser stuffage & I had 2 terrains populated with Xfrog trees(500 trees)...FYI - neither of the pics I did would have ever made it to fruition in Vue, this is why I'm sure not a memory issue

Hope this helps

Thomas · 23rd December 2005, 16:23

I never said it was a memory issue. I only asked how much memory you had, because a lot of 3D users only have 256 Mb or 512 Mb on their computer

AWBenson · 23rd December 2005, 16:36

764 mb on my main (laptop) computer :-). I rarely use the desktop at home which is faster and more memory...

Have you tried re-building the scene from scratch? Close down other programs, etc?

It doesn't sound like an "out-of-memory" error, but allocation errors usually means having some problem with the "table of contents" with the RAM. Simply saving your scene, reboot the computer (to clear all RAM) and reload may even fix this problem. Keeping the other programs usage low means that the "table" doesn't get all jumbled up with small tibbits here and there for each program that is running.

dlk30341 · 23rd December 2005, 19:07

Sorry Thomas, I know you didn't say that, but I could see where it was going LOL(no offense). And to Mr. Benson...I 'll try piddling with it today & see if I can discover more details, it's no big deal...I was checking out what all the scenes look like. Shutting down & restart fresh did not help(tried that last night).

Anyway, Like I said, no biggie...I'll mess with it more today

dlk30341 · 23rd December 2005, 19:37

Have done some piddling to no avail...here is the odd thing..I can render the scene "inside the forest" with no problems, if that helps anyone

All that is, as far as I can tell, is the same scene only a different POV.

I tried re-saving as you suggested & that didn't work either

Charles · 4th January 2006, 03:35

Hi,

I have been able to reproduce the problem and this looks like a bug. We should get this fixed in the next patch. If you find any other bug, please email me directly at charles@eovia.com, it will help us get things fixed quickly.

thanks

Charles

taz20 · 8th January 2006, 05:05

Hi Charles
I've had this problem as well recently - my scene is as follows:
2 x poser characters (with clothing & hair), 1 x terrain, 3 x volumetric clouds
I've used a load of primitives to build what architecture there is in the scene.
1 x surface replicator (about 600 items) - using the bamboo plant.
I get the same message as dlk30341 until I switch the leaves off in the plant editor, then the scene renders okay.
(Also sent this to you as requested above)
I hope this is useful info for fixing this bug.

Thomas · 8th January 2006, 13:01

taz20: did you email directly Charles with this answer ?

taz20 · 8th January 2006, 16:14

Yes I have.
Has anyone else tried switching the leaves off on other plants?
I'll try adding a different type of plant (tree) to the scene later on and see if that has any effect on whether Carrara renders the scene or not.

taz20 · 8th January 2006, 21:35

I've added a second Surface Replicator object to my scene containing 52 Honey Locust trees and the scene renders fine as long as I don't add leaves to the bamboo objects.
Could the problem be specific objects within Carrara 5's plant library?
(Also forwarded directly to Charles)

Charles · 11th January 2006, 00:35

Ok I have reproduced the problem and it comes from the use of Subsurface scattering on replicated trees. First, subsurface scattering won't do anything useful on a tree. Second subsurface scattering creates a pretty big cache in memory for each instance it is applied to (so for each one of the replicated tree) so it will fill up the memory pretty fast.

taz20 · 11th January 2006, 00:54

I thought I'd switched SSS off - anyway that seems to have done the trick and the scene is rendering okay now. And thanks for the info about SSS's memory requirements, that's useful to know for future images.
Thanks for your help.

steama · 11th January 2006, 01:00

Impressive Eovia support once again!

Patrick210 · 11th January 2006, 01:58

Translucency works well on trees and renders fast. This pic I did uses translucency.
http://www.eovia3d.net/gallery/showi...&orderby=posts

taz20 · 11th January 2006, 02:20

Hi Patrick,
I've seen your image - think it's really cool.
How do you use Translucency?
I'm experimenting with it at the moment with Value (0-100%), procedural shaders like fractal noise (or similar) and the leaf bump maps?
Do you do use anything else?
Thanks

Jaeger · 26th January 2006, 06:10

I've had the memory allocation error with scenes that were entirely based on Poser imports, and had no Carrara components. The error message is on exiting, and seems to be tied to whether I've rendered animations or not during the session.

I've already emailed to Charles - has anyone else had it in this situation?

23rd December 2005, 02:01	#1 (permalink)
dlk30341 Cube Join Date: Aug 2005 Posts: 73	The forest scene cause a mem allocation error As stated above...when trying to render the forest scene I get a memory allocation error. So far no other scene has caused this. C5P - update v2

23rd December 2005, 11:46	#2 (permalink)
Thomas Always learning new stuff Join Date: Jul 2002 Location: Merignac, France Posts: 11,295	How much memory do you have on your computer ? __________________ Polyloop owner & Administrator - no support by PM or email. Polyloop [EN/FR] - Meuuh [FR +16 ans] - Totyo [FR] - Pixologic [JOB] - Le ZBlog [JOB] - La3dpourlesnuls [FR]

23rd December 2005, 16:23	#4 (permalink)
Thomas Always learning new stuff Join Date: Jul 2002 Location: Merignac, France Posts: 11,295	I never said it was a memory issue. I only asked how much memory you had, because a lot of 3D users only have 256 Mb or 512 Mb on their computer __________________ Polyloop owner & Administrator - no support by PM or email. Polyloop [EN/FR] - Meuuh [FR +16 ans] - Totyo [FR] - Pixologic [JOB] - Le ZBlog [JOB] - La3dpourlesnuls [FR]

23rd December 2005, 16:36	#5 (permalink)
AWBenson Box modeling Join Date: Jun 2005 Location: Miami, FL Posts: 292	764 mb on my main (laptop) computer :-). I rarely use the desktop at home which is faster and more memory... Have you tried re-building the scene from scratch? Close down other programs, etc? It doesn't sound like an "out-of-memory" error, but allocation errors usually means having some problem with the "table of contents" with the RAM. Simply saving your scene, reboot the computer (to clear all RAM) and reload may even fix this problem. Keeping the other programs usage low means that the "table" doesn't get all jumbled up with small tibbits here and there for each program that is running. __________________ Andrew Benson AKA: AWBenson www.awbenson.com andrew (at) awbenson (dot) com

8th January 2006, 13:01	#10 (permalink)
Thomas Always learning new stuff Join Date: Jul 2002 Location: Merignac, France Posts: 11,295	taz20: did you email directly Charles with this answer ? __________________ Polyloop owner & Administrator - no support by PM or email. Polyloop [EN/FR] - Meuuh [FR +16 ans] - Totyo [FR] - Pixologic [JOB] - Le ZBlog [JOB] - La3dpourlesnuls [FR]

23rd December 2005, 16:19	#3 (permalink)
dlk30341 Cube Join Date: Aug 2005 Posts: 73	4 gigs/3.2ghz/Win Xpro. I'm about 99% sure it's not a memeory issue.....the last couple pics I did were JAMMED with Poser stuffage & I had 2 terrains populated with Xfrog trees(500 trees)...FYI - neither of the pics I did would have ever made it to fruition in Vue, this is why I'm sure not a memory issue Hope this helps

23rd December 2005, 19:07	#6 (permalink)
dlk30341 Cube Join Date: Aug 2005 Posts: 73	Sorry Thomas, I know you didn't say that, but I could see where it was going LOL(no offense). And to Mr. Benson...I 'll try piddling with it today & see if I can discover more details, it's no big deal...I was checking out what all the scenes look like. Shutting down & restart fresh did not help(tried that last night). Anyway, Like I said, no biggie...I'll mess with it more today

23rd December 2005, 19:37	#7 (permalink)
dlk30341 Cube Join Date: Aug 2005 Posts: 73	Have done some piddling to no avail...here is the odd thing..I can render the scene "inside the forest" with no problems, if that helps anyone All that is, as far as I can tell, is the same scene only a different POV. I tried re-saving as you suggested & that didn't work either

4th January 2006, 03:35	#8 (permalink)
Charles Eovia Join Date: Jul 2005 Posts: 53	Hi, I have been able to reproduce the problem and this looks like a bug. We should get this fixed in the next patch. If you find any other bug, please email me directly at charles@eovia.com, it will help us get things fixed quickly. thanks Charles

8th January 2006, 05:05	#9 (permalink)
taz20 Vertex Join Date: Jul 2005 Posts: 27	Hi Charles I've had this problem as well recently - my scene is as follows: 2 x poser characters (with clothing & hair), 1 x terrain, 3 x volumetric clouds I've used a load of primitives to build what architecture there is in the scene. 1 x surface replicator (about 600 items) - using the bamboo plant. I get the same message as dlk30341 until I switch the leaves off in the plant editor, then the scene renders okay. (Also sent this to you as requested above) I hope this is useful info for fixing this bug.

8th January 2006, 16:14	#11 (permalink)
taz20 Vertex Join Date: Jul 2005 Posts: 27	Yes I have. Has anyone else tried switching the leaves off on other plants? I'll try adding a different type of plant (tree) to the scene later on and see if that has any effect on whether Carrara renders the scene or not.

8th January 2006, 21:35	#12 (permalink)
taz20 Vertex Join Date: Jul 2005 Posts: 27	I've added a second Surface Replicator object to my scene containing 52 Honey Locust trees and the scene renders fine as long as I don't add leaves to the bamboo objects. Could the problem be specific objects within Carrara 5's plant library? (Also forwarded directly to Charles)

11th January 2006, 00:35	#13 (permalink)
Charles Eovia Join Date: Jul 2005 Posts: 53	Ok I have reproduced the problem and it comes from the use of Subsurface scattering on replicated trees. First, subsurface scattering won't do anything useful on a tree. Second subsurface scattering creates a pretty big cache in memory for each instance it is applied to (so for each one of the replicated tree) so it will fill up the memory pretty fast.

11th January 2006, 00:54	#14 (permalink)
taz20 Vertex Join Date: Jul 2005 Posts: 27	I thought I'd switched SSS off - anyway that seems to have done the trick and the scene is rendering okay now. And thanks for the info about SSS's memory requirements, that's useful to know for future images. Thanks for your help.

11th January 2006, 01:00	#15 (permalink)
steama Boulet Join Date: Nov 2005 Posts: 452	Impressive Eovia support once again!

11th January 2006, 01:58	#16 (permalink)
Patrick210 Pixar want to hire me! Join Date: Apr 2004 Location: Florida, USA Posts: 549	Translucency works well on trees and renders fast. This pic I did uses translucency. http://www.eovia3d.net/gallery/showi...&orderby=posts

11th January 2006, 02:20	#17 (permalink)
taz20 Vertex Join Date: Jul 2005 Posts: 27	Hi Patrick, I've seen your image - think it's really cool. How do you use Translucency? I'm experimenting with it at the moment with Value (0-100%), procedural shaders like fractal noise (or similar) and the leaf bump maps? Do you do use anything else? Thanks

26th January 2006, 06:10	#18 (permalink)
Jaeger Cube Join Date: Jan 2006 Posts: 62	I've had the memory allocation error with scenes that were entirely based on Poser imports, and had no Carrara components. The error message is on exiting, and seems to be tied to whether I've rendered animations or not during the session. I've already emailed to Charles - has anyone else had it in this situation?

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