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Support => Terragen Support => Topic started by: Floating.Point on February 12, 2011, 01:53:03 PM

Title: Thread error when using crop region (renders fine without crop)...?
Post by: Floating.Point on February 12, 2011, 01:53:03 PM
Hi there,
Ive just run into an issue tonight...
I am rendering an image which requires a high detail setting of 2
When I render the image as a whole it renders fine
But as soon as I use a crop, it throws an unknown thread error as soon as I click render :(
Any ideas?
Thanks,
-FP
Title: Re: Thread error when using crop region (renders fine without crop)...?
Post by: Oshyan on February 12, 2011, 10:53:36 PM
Strange, I haven't seen that kind of problem yet. I presume you're using the latest 2.2 update (remember that there was an update for licensed TG2 users when the free version was released a couple weeks ago).

What are your thread and render buffer settings? Have you tried changing the size of the render buckets?

- Oshyan
Title: Re: Thread error when using crop region (renders fine without crop)...?
Post by: Floating.Point on February 13, 2011, 04:43:53 PM
Running TG 2.2
on 8 core 2.8ghz xeon 32gb ram
Windows 7 x64

Tried with various thread settings to no avail.
1thread max -> 16thread max
Also various cache sizes
400 -> 1000 cache
Also tried enabling pre cache... No luck :(


How would u suggest I alter the bucket settings to troubleshoot further?
Title: Re: Thread error when using crop region (renders fine without crop)...?
Post by: Kadri on February 13, 2011, 05:57:11 PM
Quote from: Floating.Point on February 12, 2011, 01:53:03 PM
...
When I render the image as a whole it renders fine
...

Excuse me but i do not understand the problem!
If your image renders fine as a whole why do you try to render in crops ?
If you do not go until the end with the whole render  maybe the error would kick in in a later time!
Just speculation of course.

Quote from: Floating.Point on February 12, 2011, 01:53:03 PM
...
But as soon as I use a crop, it throws an unknown thread error as soon as I click render :(
...

Floating.Point  , did you try to change the area of the crop render?
Vertical to horizontal or in different places on the image with different size?
Title: Re: Thread error when using crop region (renders fine without crop)...?
Post by: dandelO on February 13, 2011, 06:05:45 PM
As Oshyan says, you can change the size of each render tile, try making a crop render, the render bucket without auto reduction, and a tile size larger than the cropped area. Then it should render as one piece, hopefully without bucket errors. Or, try just rendering the crop region with one thread.
Title: Re: Thread error when using crop region (renders fine without crop)...?
Post by: Floating.Point on February 13, 2011, 08:16:30 PM
@kadri

The image renders fine/completes as a whole, but I would like to increase the resolution by about 3 times for a big printable final rnder- which will certainly not be able to render as a whole. I have tried different size crops right Down to a tiny little thumbnail with no luck

@DandelO

I will have a play with the bucket controls and report back tonight!

Title: Re: Thread error when using crop region (renders fine without crop)...?
Post by: Oshyan on February 14, 2011, 12:22:30 AM
I don't have any specific recommendations regarding the bucket controls. I would be very curious to see if this error could be reproduced on a different system though. If so it could be a good test case for renderer troubleshooting. I'm curious though why detail of 2 is required. This is extremely rare.

- Oshyan
Title: Re: Thread error when using crop region (renders fine without crop)...?
Post by: Floating.Point on February 14, 2011, 12:46:13 AM
I'm rendering a shallow lake and need detail below the surface. Such a shame we are forced to have reduced detail for underwater surfaces :( control over this parameter would be useful in this case.
Title: Re: Thread error when using crop region (renders fine without crop)...?
Post by: Oshyan on February 14, 2011, 03:04:14 AM
That will be available in a future update.

- Oshyan
Title: Re: Thread error when using crop region (renders fine without crop)...?
Post by: Floating.Point on February 15, 2011, 01:06:01 AM
Update:

After 2 restarts... I cannot seem to replicate the problem.
Crops are rendering fine now!!
I have a feeling it might be a problem with my system (rather than TG2.2)... For now things seem okay!
Im due for a re-imaging of my machine anyway- if I encounter this odd issue again I will reinstall windows on a fresh partition and go from there.
Thanks everyone!
Title: Re: Thread error when using crop region (renders fine without crop)...?
Post by: Oshyan on February 15, 2011, 01:18:15 AM
Thanks for keeping us updated. Glad to hear it seems not to be a problem with TG2. It did seem quite odd!

- Oshyan