Large Print Rendering tips?

Discussions about rendering in SOFTIMAGE©
thorsnuts
Posts: 151
Joined: 08 Oct 2012, 19:42

Large Print Rendering tips?

Post by thorsnuts » 07 Mar 2016, 04:27

Hello,

I was wondering if there were any suggestions for rendering large image? I'm rendering an image at a scale of 9600 x 5400, but I don't know what settings are good or bad for a render like this.

I noticed the tile size is really small at the default settings, but not sure if something like that matters in terms of quality.

Is there a common work flow to follow?

thank you

User avatar
Rork
Posts: 1287
Joined: 09 Jul 2009, 08:59
Location: Close to The Hague, Netherlands

Re: Large Print Rendering tips?

Post by Rork » 07 Mar 2016, 09:23

render settings are render settings, that shouldn't matter if they're set properly. It's just going to render for a long time ;)

if you have access to a renderfarm, you have options there to split up the frame into multiple parts, to be reassembled later on.

and, just guessing here it's for print, have a look if you really need the large size. e.g. print for abri's often is just 75dpi.

i can recall some tools to create multiple camera's of the scene and render parts on different machines for manual stitching later, but cannot seem to find it so far....

rob
SI UI tutorials: Toolbar http://goo.gl/iYOL0l | Custom Layout http://goo.gl/6iP5xQ | RenderManager View http://goo.gl/b4ZkjQ

NNois
Posts: 705
Joined: 09 Jun 2009, 20:33

Re: Large Print Rendering tips?

Post by NNois » 07 Mar 2016, 12:58

For Print > 200 Dpi with an insane number of pixels you should also consider to drastically lower your renderer AA settings because the dots are so small you don't need them to be antialiased ;-)

User avatar
Rork
Posts: 1287
Joined: 09 Jul 2009, 08:59
Location: Close to The Hague, Netherlands

Re: Large Print Rendering tips?

Post by Rork » 07 Mar 2016, 13:46

And in addition to that, you could try rendering in a lower resolution, and upres it in Photoshop. Often you can hardly tell the difference ;)

rob
SI UI tutorials: Toolbar http://goo.gl/iYOL0l | Custom Layout http://goo.gl/6iP5xQ | RenderManager View http://goo.gl/b4ZkjQ

User avatar
Maximus
Posts: 980
Joined: 09 Jun 2009, 15:45

Re: Large Print Rendering tips?

Post by Maximus » 07 Mar 2016, 14:18

you need to know your output size, there is a formula for that.

For example if you have to print an A4 which is 21x29.7cm you would have to produce a render like this: 21*300DPI/2.54 = 2480 pixels X 29.7*300DPI/2.54 = 3507 pixels
Your render then will be a 3507 x 2480 pixels to print an a4 at 300 dpi.
Many other prints like highway publicity and stuff like that are so huge that are made to be seen by far, you wont need 300 dpi. It depends what your client or you need to do with the output.

Basically you need to know at what DPI your output is and the measure. Then the formula is "dimension x dpi / 2.54" = your output pixels. you have to do it for both sides ofc :)

User avatar
Tekano
Posts: 488
Joined: 09 Jun 2009, 14:49
Location: London, UK

Re: Large Print Rendering tips?

Post by Tekano » 07 Mar 2016, 18:28

the most valuable tip is to turn off the display when rendering in the preferences. you will not believe how much ram takes out of your graphics card just to hold and display a large format image from memory.
Gossip is what no one claims to like, but everybody enjoys.

thorsnuts
Posts: 151
Joined: 08 Oct 2012, 19:42

Re: Large Print Rendering tips?

Post by thorsnuts » 05 May 2016, 18:03

Sorry for the extremely late reply... But thanks for the help!!.. very useful, very helpful. Thank you so much for the help. Everything came out lovely.

Something I did to get the correct size and DPI was create the Canvas in Photoshop at the size and DPI needed, then test renders until it fits somewhat in the canvas setup, then upscale it to fit perfectly.

Again thanks for the help

User avatar
Rez007
Posts: 609
Joined: 12 Jan 2010, 15:51
Location: Nevada

Re: Large Print Rendering tips?

Post by Rez007 » 15 May 2016, 02:40

This works like a charm if you are rending XXL images, especially if you want a high DPI. I have used it multiple times.

http://caffeineabuse.blogspot.com/2009/ ... mages.html