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General => Terragen Discussion => Topic started by: mhaze on May 09, 2018, 07:56:12 AM

Title: Printing
Post by: mhaze on May 09, 2018, 07:56:12 AM
Ok, I have an image that is 1100x1200 pixels. I want to print it at 16" approx at 300dpi  how do I calculate the render size needed. I know the 300*16 bit but not how to translate the 1100*1200 bit.
Title: Re: Printing
Post by: archonforest on May 09, 2018, 08:23:51 AM
An A3(11x16 inches) sized document is 3508x4961 pixels in Photoshop.
Title: Re: Printing
Post by: mhaze on May 09, 2018, 10:30:02 AM
Ah but how to upscale my image size 1100x1200 to roughly 16"
Title: Re: Printing
Post by: archonforest on May 09, 2018, 10:36:14 AM
Quote from: mhaze on May 09, 2018, 10:30:02 AM
Ah but how to upscale my image size 1100x1200 to roughly 16"

Where do you want to upscale the image? In Photoshop?
Title: Re: Printing
Post by: mhaze on May 09, 2018, 04:59:39 PM
No in terragen. I have an idea. Thanks for your ideas
Title: Re: Printing
Post by: Oshyan on May 09, 2018, 05:12:43 PM
You need both dimensions of your print size. Then you just calculate X dimension times 300 (DPI), and Y dimension times 300 and those correspond to your X and Y render dimensions that you specify in Terragen. Simple as that. Terragen does not do anything with DPI as it's a meaningless setting until you print something and can easily be specified in your image editor or at the time of printing. It has no effect on the actual image/render itself.

- Oshyan
Title: Re: Printing
Post by: Kadri on May 09, 2018, 05:43:41 PM
Quote from: Oshyan on May 09, 2018, 05:12:43 PM
... Terragen does not do anything with DPI as it's a meaningless setting until you print something and can easily be specified in your image editor or at the time of printing. It has no effect on the actual image/render itself.
...

Many brave 3D artists lost their nerves on the internet in the past by trying to explain that to regular print guys.






Sorry  ;D
Title: Re: Printing
Post by: Matt on May 09, 2018, 08:47:14 PM
Quote from: Kadri on May 09, 2018, 05:43:41 PM
Many brave 3D artists lost their nerves on the internet in the past by trying to explain that to regular print guys.

Sorry  ;D

I felt the same way trying to explain why CG cameras don't need focal length and film/sensor size when one simple FOV value encapsulates both. But I gave up and added all the things to Terragen's camera...

Matt
Title: Re: Printing
Post by: Kadri on May 09, 2018, 09:04:35 PM
Quote from: Matt on May 09, 2018, 08:47:14 PM
...
I felt the same way trying to explain why CG cameras don't need focal length and film/sensor size when one simple FOV value encapsulates both. But I gave up and added all the things to Terragen's camera...
...

Didn't thought about that until now actually. But yes makes sense :)
Title: Re: Printing
Post by: Dune on May 10, 2018, 01:23:56 AM
 ;D
Title: Re: Printing
Post by: archonforest on May 10, 2018, 02:50:10 AM
Quote from: Matt on May 09, 2018, 08:47:14 PM
Quote from: Kadri on May 09, 2018, 05:43:41 PM
Many brave 3D artists lost their nerves on the internet in the past by trying to explain that to regular print guys.

Sorry  ;D

I felt the same way trying to explain why CG cameras don't need focal length and film/sensor size when one simple FOV value encapsulates both. But I gave up and added all the things to Terragen's camera...

Matt

LOL!!!
Title: Re: Printing
Post by: Kadri on May 10, 2018, 03:53:52 AM
Quote from: Matt on May 09, 2018, 08:47:14 PM
...
I felt the same way trying to explain why CG cameras don't need focal length and film/sensor size when one simple FOV value encapsulates both. But I gave up and added all the things to Terragen's camera...
...


Matt just curious are there any other such things you put because of general acceptance?
Title: Re: Printing
Post by: René on May 10, 2018, 04:45:38 AM
Quote from: Kadri on May 10, 2018, 03:53:52 AM


Matt just curious are there any other such things you put because of general acceptance?

I think the renderer is one of those things. People are used to waiting long hours for the image to finish, they just don't expect anything else.
Title: Re: Printing
Post by: Matt on May 10, 2018, 04:38:00 PM
Kadri, I don't remember specific examples right now, but probably yes. Matching the user's expectations is generally a good thing - it is a fundamental of UX design. I only hesitate to do so when I think it makes things more complicated than they need to be.

Matt
Title: Re: Printing
Post by: Kadri on May 10, 2018, 04:39:54 PM

Thanks Matt.