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General => Terragen Discussion => Topic started by: moodflow on July 03, 2009, 03:31:29 PM

Title: Working with image based displacements
Post by: moodflow on July 03, 2009, 03:31:29 PM
I've been taking a break from rendering for a while, but wanted to share some of the progress I've made with image based displacements.  I do plan on developing this further.  I think the results are very nice if done correctly, and can supplement areas where more of an organic/natural look is required.  Additionally, this method should animate nicely.

Title: Re: Working with image based displacements
Post by: old_blaggard on July 03, 2009, 03:56:44 PM
That's very good!
Title: Re: Working with image based displacements
Post by: Hetzen on July 03, 2009, 04:31:43 PM
That looks really convincing Moodflow, the blending works incredibly well.
Title: Re: Working with image based displacements
Post by: Henry Blewer on July 03, 2009, 04:56:54 PM
I am sold. Please let us know what your doing! :-X
Title: Re: Working with image based displacements
Post by: domdib on July 03, 2009, 05:20:50 PM
Wow! Yes, please tell us  :)
Title: Re: Working with image based displacements
Post by: littlecannon on July 03, 2009, 05:43:50 PM
Those rocks are astounding :o... I'm very curious as to how you did this, they have to be the most realistic rocks I've seen done to date. Great work.
Title: Re: Working with image based displacements
Post by: choronr on July 03, 2009, 06:08:12 PM
Convincingly photo realistic ...we look forward to more on this subject Moodflow.
Title: Re: Working with image based displacements
Post by: rcallicotte on July 05, 2009, 07:03:38 PM
 :o

And you haven't called or left a message in eons.   ;D  Glad you're back!!

Do we get a little hint or tutorial or anything later?
Title: Re: Working with image based displacements
Post by: deepdish on July 05, 2009, 11:39:08 PM
I've tried to get this look, but considering that i am a MASSIVE newbie with no knowledge of how to manipulate the node network, i always get funny lookin' results.

Please share what you did!
Title: Re: Working with image based displacements
Post by: inkydigit on July 06, 2009, 05:48:10 AM
looks very good...some tips please!!
Title: Re: Working with image based displacements
Post by: mr-miley on July 06, 2009, 11:01:56 AM
You've been told about posting photographs before.....
Title: Re: Working with image based displacements
Post by: littlecannon on July 06, 2009, 12:08:50 PM
moodflow... he's teased us, then legged it. Come back, we need to know how you did this.... PLEASE. ;D
Title: Re: Working with image based displacements
Post by: Hannes on July 06, 2009, 12:29:22 PM
Wow!!
Title: Re: Working with image based displacements
Post by: Tangled-Universe on July 06, 2009, 04:02:16 PM
Very neat work!
Did I hear something echoing in the distance?                                        tutorial? tutorial? tutorial?  tutorial?
Title: Re: Working with image based displacements
Post by: HarryHaller on July 07, 2009, 07:10:46 AM
At this distance it looks real !  :o

Do you have some close-ups to share ?
Title: Re: Working with image based displacements
Post by: Henry Blewer on July 07, 2009, 08:05:29 AM
I found one of moodflow's earlier image displacement links in the forum. This link should take you right to an example he made (with tgd files).

http://forums.planetside.co.uk/index.php?topic=5266.msg61130#msg61130

My search criteria was image displacements and I used moodflow in the last filtering input. This will bring up many threads he has posted on using image maps for displacement; hence he reply of "what" as he thought, "doesn't anyone read around here?"
Title: Re: Working with image based displacements
Post by: rcallicotte on July 07, 2009, 09:28:35 AM
I think Moodflow has come up with something new, so I'm interested in hearing his new findings.
Title: Re: Working with image based displacements
Post by: Henry Blewer on July 07, 2009, 09:35:46 AM
Could be. I am curious what he is using for the displacement image also. ???
Title: Re: Working with image based displacements
Post by: moodflow on July 07, 2009, 12:39:47 PM
Hey guys, sorry for not responding.  I keep getting caught up in life's web of responsibility!

For image based displacement, you have to carefully extract or create the displacement from the image.  I used photoshop to do this, and it was very time consuming.  The displacement usually does NOT really match the colors/shading on the image, so its very tricky to get just right, and even then, its still not 100% accurate.  Additionally, you are limited by the pixel level of the image, so up close shots usually won't work well. 

In this image, I got pretty lucky.  I wish I had more time to do a full write up on this, but it would be pages and pages worth of stuff.
Title: Re: Working with image based displacements
Post by: Henry Blewer on July 07, 2009, 02:31:32 PM
I am still curious as to the images, before photoshop and after. Using a photograph could be a quick way to get a really good landscape.
Title: Re: Working with image based displacements
Post by: aymenk2003 on July 08, 2009, 10:05:06 AM
Quote from: njeneb on July 07, 2009, 02:31:32 PM
I am still curious as to the images, before photoshop and after. Using a photograph could be a quick way to get a really good landscape.
I think that using P.Shop is only to get a greyscale image from the original one and using it to create a image bump ...

......
Title: Re: Working with image based displacements
Post by: aymenk2003 on July 08, 2009, 10:25:35 AM
I did one day found this example in planetside forum ; that use an image map shader as a texture for the landscape, I've made a little modification to see what it gives with fakestone ,ehh(that's my cloud) the result ?
See it :
Title: Re: Working with image based displacements
Post by: rcallicotte on July 08, 2009, 12:20:29 PM
This is helpful for someone with Photoshop - http://developer.nvidia.com/object/photoshop_dds_plugins.html
Title: Re: Working with image based displacements
Post by: rcallicotte on July 08, 2009, 12:21:39 PM
I did this one awhile back, using images - http://www.renderosity.com/mod/gallery/index.php?image_id=1600412&member
Title: Re: Working with image based displacements
Post by: aymenk2003 on July 08, 2009, 12:27:52 PM
Oh I forget the Tgd file ... here's