Any hints for merging rendersliced images?

[dann_stubbs]

I sporadically netrender stills using the 25 tile camera object or TimCs renderlicer.

Is there a tried and true method of removing each slice from the file and merging with the composite image, without having those fuzzy pixel halos? I wind up spending post time blurring, stamping or painting the horizontal lines out.

TIA

joel,

is there overlap in tim's render slicer?

i don't remember seeing this behavior in the maxon tiled camera - is it possible that tims camera is aliasing the edges?

dann

[JoelOtron]

Hey Dann

Tim's uses a hard alpha channel with the gradient shader it seems. I think part of the problem in the current case, is the size of the render--it was only standard NTSC and 72 DPI--which was part of the problem I suppose.

I havent mastered the 25 tile camera--I always seem to screw it up. I once had to render a large image (maybe 4000 pixels wide) and used the 25 tile object for it. Worked great BUT each tile was 4000 pixels. DOH! So I usually use Tims renderslicer because I dont seem to have that problem.

But in general, I find that I usually have to work into any image after merging slices.

[2a03]

"Is there a tried and true method of removing each slice from the file and merging with the composite image, without having those fuzzy pixel halos? I wind up spending post time blurring, stamping or painting the horizontal lines out."

Thats strange... I do tiled renders all the time and I haven't encountered that problem... The only thing I've come across is before merging the slices in photoshop I often see very thin lines between the image slices... I used to think there were slight gaps between the images but upon further inspection it was just a glitch in Photoshops previewing function... At %25 %33 %66 etc the lines would appear but at %50 or %100 they would not... Suffice to say there were no gaps and it was just a display issue... Even so merging the slices will cause the gaps to dissapear no matter what the image preview size.

[JoelOtron]

"Is there a tried and true method of removing each slice from the file and merging with the composite image, without having those fuzzy pixel halos? I wind up spending post time blurring, stamping or painting the horizontal lines out."

Thats strange... I do tiled renders all the time and I haven't encountered that problem... The only thing I've come across is before merging the slices in photoshop I often see very thin lines between the image slices... I used to think there were slight gaps between the images but upon further inspection it was just a glitch in Photoshops previewing function... At %25 %33 %66 etc the lines would appear but at %50 or %100 they would not... Suffice to say there were no gaps and it was just a display issue... Even so merging the slices will cause the gaps to dissapear no matter what the image preview size.

THANKS!

I was wondering about that too! I often see those lines--thet dissapera depending on how zoomed in or out I am and was hoping it was just an illusion. So its good to know that they dont show up in the merged image. Dont do this too much--once every few months or so--and usually in a rush to do it so havent really worked it all out.

[tcastudios]

I havent mastered the 25 tile camera--I always seem to screw it up. I once had to render a large image (maybe 4000 pixels wide) and used the 25 tile object for it. Worked great BUT each tile was 4000 pixels.

There is a good tiled camera info here regarding the output size:
http://www.3dattack.net/forum/showpost.php?p=49321&postcount=1

Cheers
Lennart

[flingster]

joel i'm guessing you're not using any postfx in your renders but thought i'd mention it just in case.

[JoelOtron]

Thanks Lennart (edit--I mixed your nameup b4)--helpful. That info makes sense.

The reason I liked Tims renderlicer was that one wouldnt have to worry about calcualting render size--but once I remembered I still knew how to do a little math, then it all was clear.

@flingster--it wasnt a post fx prob--thanks. I was rendering lower res images than I should have--plus it seems Tims slicer antialiases the edges of the tiles--the 25 tile camera object doesnt--since it renders to the edge of each full frame.

[flingster]

Thanks tcaarts--helpful. That info makes sense.

The reason I liked Tims renderlicer was that one wouldnt have to worry about calcualting render size--but once I remembered I still knew how to do a little math, then it all was clear.

@flingster--it wasnt a post fx prob--thanks. I was rendering lower res images than I should have--plus it seems Tims slicer antialiases the edges of the tiles--the 25 tile camera object doesnt--since it renders to the edge of each full frame.

ok bud just a thought at back on my mind there..didn't realise timc did aa always used 9 tile.

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