tiled images with fur and lightcache; tiles not matching

[tinuz]

Hi,

I need to render the following image at about 6000x6000.
I was thinking of rendering this in tiles because of long rendertimes.

I use primary Brute force, secondary light cache

but the light cache causes not matching tiles:



with lightcache disabled:



but this becomes to dark and rendertimes are longer
I also noticed that the "banding" only appears on the fur.
the images both have:
resolution 1024x1024 in 16 tiles
subdivs of lighcache 1024



so multiple questions:

1 - any tips for rendering as 1 image at 6000x6000?
( I'm afraid my machines are not gonna handle this.)
2 - any tips on improving the light cache so it won't produce these "bands"


cheers..

[vlado]

How do you do the rendering in tiles? There should be no problem to render a 6000x6000 image - if you are concerned about memory, you can render directly to a .vrimg file on disk and disable the memory frame buffer option. If render time is a concern, you can use DR to calculate the image.

Best regards,
Vlado

[tinuz]

tile rendering is done with the region flag? or do you mean something else?

- directly to .vrimg, can I include render elements?
- disable the memory frame buffer can only be done in commandline isn't it? and only with standalone?

DR could be an option but I don't have a dedicated renderfarm, only workstations and I have had quite some problems with it, but I'm quite sure that's not vray..

[vlado]

Well, if you still have to go with the tile rendering, you can render out a single light cache file at lower resolution, save it to disk, and then just use the calculated light cache to render the tiles.

Otherwise, direct rendering to .vrimg file or multichannel .exr file saves all the render elements.

In the latest versions, the memory frame buffer can be disabled from the Render Setup dialog when you choose to render to a .vrimg or multichannel OpenEXR file.

Best regards,
Vlado

[tinuz]

aah great vlado,

I think the first option will do!
thanks!

[tinuz]

Well, if you still have to go with the tile rendering, you can render out a single light cache file at lower resolution, save it to disk, and then just use the calculated light cache to render the tiles.

this works perfect! thanks again Vlado!

[vlado]

Ok, glad it helped

Best regards,
Vlado