OctaneRender for Carrara 2.06.0051 [Test]

Mon Sep 15, 2014 3:41 pm

It's not a plugin. It is content related. Somewhere there is bad mesh that Carrara does not care about but is driving Octane bonkers. This is going to take even more time to isolate.

Mon Sep 15, 2014 4:08 pm

Sighman wrote:It's not a plugin. It is content related. Somewhere there is bad mesh that Carrara does not care about but is driving Octane bonkers. This is going to take even more time to isolate.

If I were to keep trying various cut down versions of Country lane (removing objects) until I don't get the issue, but do have a larger scene, would that help?

Mon Sep 15, 2014 4:41 pm

Yes, but I don't want you to waste anymore time on this if you have more important things to do. I should be able to narrow down on what is the cause. I don't even know yet if Country Lane is at fault.

Mon Sep 15, 2014 4:46 pm

Ok. We'll I'll only attempt it if I'm outside of working time (weekends). Atm It's full steam ahead on the modelling. Glad you have a handle on the problem.

Tue Sep 16, 2014 5:26 am

Ok, my bad. I have not been loading the entire scene and that is why I was not seeing the problem. To cut a long story short the problem is the fir trees. Each 'leaf' of a fir tree consists of hundreds of needles. If you scatter that 'leaf' over the tree and then try to flatten the tree you end up with a mesh that is too big to fit into GPU memory. So the trick to loading this particular scene is to uncheck the Flatten option in the Effects tab for each of the three fir trees. Hopefully it is obvious that you need to do this before you open the ORVP.

Tue Sep 16, 2014 6:53 am

Well done for finding the reason.

I can't see an effects tab or a flatten option in the tabs I do have (Trunk, branches, leaf, Tree shape, experts). Could you post a screenshot of where the flatten is please?

Thanks.

Tue Sep 16, 2014 7:33 am

It's in the assembly room.

: Flatten Option; tree.png (13.56 KiB) Viewed 4349 times

Tue Sep 16, 2014 8:06 am

Yes! Well done. Works for me in 8.1 too.

It takes a while to load the scene initially, but the image cleans up really quick. These scenes are now much more viable for animation vs the native renderer.

I'll go through the other ones (all country lane pack and all stoney creek pack) and try the same thing during spare time (eves or weekends). If they work I think you can add this to one of the plus points of the plug in. Not just the Howie scenes but your own landscapes too.

A good breakthrough.

Tue Sep 16, 2014 2:51 pm

SciFiFunk wrote:Yes! Well done. Works for me in 8.1 too.

It takes a while to load the scene initially, but the image cleans up really quick. These scenes are now much more viable for animation vs the native renderer.

I'll go through the other ones (all country lane pack and all stoney creek pack) and try the same thing during spare time (eves or weekends). If they work I think you can add this to one of the plus points of the plug in. Not just the Howie scenes but your own landscapes too.

A good breakthrough.

Stoney Creek is not so easy. There are too many tree types with complex leaves that are replicated. I can get the scene to load if I remove the background tree layer and turn off flatten for all the foreground trees including the ones being replicated. For the background trees you need to reduce the number being replicated or simplify the leaves. The spruce leaf is 2400 triangles and the oak leaf is 2800. Get these down to 120 or so and you can flatten them without spoiling the scene too much.

Tue Sep 16, 2014 2:56 pm

Sighman wrote: Stoney Creek is not so easy. There are too many tree types with complex leaves that are replicated. I can get the scene to load if I remove the background tree layer and turn off flatten for all the foreground trees including the ones being replicated. For the background trees you need to reduce the number being replicated or simplify the leaves. The spruce leaf is 2400 triangles and the oak leaf is 2800. Get these down to 120 or so and you can flatten them without spoiling the scene too much.

Ok thanks.

Long term the GPUs will gain more on board memory. I don't have access to a Titan and I see you said you also had issues with a full Country Lane. Do you have any idea of the kind of memory a GPU would need to cope with these scenes unedited? I mean essentially your plug in works, it's being held back by the amount GPU memory right?

Or can it be solved via programming? I'm happy with the workaround (reduce complexity, now we know what to edit) for now just curious as to the future.