Author Topic: Rocks by using displacement and color maps made with Photoshop.  (Read 468 times)

Offline RenÚ

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Rocks by using displacement and color maps made with Photoshop.
« Last Edit: April 23, 2019, 06:32:44 AM by RenÚ »

Offline Dune

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Re: Rocks by using displacement and color maps made with Photoshop.
« Reply #1 on: April 23, 2019, 07:07:04 AM »
Cool again! I've used a blocky gif file a few times for displacement of my blocks. Actually I don't know what would be faster to render/compute; an image file, such as these, or a huge set of blue nodes such as Jon's blocky ones.

Offline Hannes

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Re: Rocks by using displacement and color maps made with Photoshop.
« Reply #2 on: April 23, 2019, 07:45:15 AM »
Fantastic! Great information. Thanks, RenÚ.

Offline archonforest

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Re: Rocks by using displacement and color maps made with Photoshop.
« Reply #3 on: April 23, 2019, 07:45:41 AM »
Very nice.
How did u applied these maps in TG to get that result?
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Offline RenÚ

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Re: Rocks by using displacement and color maps made with Photoshop.
« Reply #4 on: April 23, 2019, 08:00:49 AM »
Cool again! I've used a blocky gif file a few times for displacement of my blocks. Actually I don't know what would be faster to render/compute; an image file, such as these, or a huge set of blue nodes such as Jon's blocky ones.

An image file is certainly faster! Why? I don't know; maybe because, apart from the displacement, the texture already exists and less rendering is needed. It also requires only one displacement (the gray value of the texture) as opposed to a lot of procedural textures.
« Last Edit: April 23, 2019, 08:19:32 AM by RenÚ »

Offline RenÚ

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Re: Rocks by using displacement and color maps made with Photoshop.
« Reply #5 on: April 23, 2019, 08:12:51 AM »
Very nice.
How did u applied these maps in TG to get that result?

The textures are TIFF files loaded as an image map and mapped along side Z or side X. Unfortunately this only works in one direction, and the other direction gets stretched. So the camera has to be in exactly the right place. Important: the image maps must be passed through a transform shader with world space enabled.

Offline archonforest

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Re: Rocks by using displacement and color maps made with Photoshop.
« Reply #6 on: April 23, 2019, 08:24:13 AM »
Very nice.
How did u applied these maps in TG to get that result?

The textures are TIFF files loaded as an image map and mapped along side Z or side X. Unfortunately this only works in one direction, and the other direction gets stretched. So the camera has to be in exactly the right place. Important: the image maps must be passed through a transform shader with world space enabled.

Thank you. Very interesting. Will try it.
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Offline mhaze

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Re: Rocks by using displacement and color maps made with Photoshop.
« Reply #7 on: April 23, 2019, 08:33:07 AM »
Really interesting technique beautifully executed.

Offline Dune

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Re: Rocks by using displacement and color maps made with Photoshop.
« Reply #8 on: April 23, 2019, 09:12:47 AM »
I used a Y projection (with my squares.gif) and merged that with a transform shader with 90║ rotations, which also works.

Offline RenÚ

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Re: Rocks by using displacement and color maps made with Photoshop.
« Reply #9 on: April 23, 2019, 10:09:01 AM »
It didn't occur to me that I could do that with image maps. I'm going to try it. Thanks for the tip!

Offline bobbystahr

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Re: Rocks by using displacement and color maps made with Photoshop.
« Reply #10 on: April 26, 2019, 03:20:07 AM »
I used a Y projection (with my squares.gif) and merged that with a transform shader with 90║ rotations, which also works.

I've done cliff faces like that in the past as well with Y projection
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Offline sboerner

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Re: Rocks by using displacement and color maps made with Photoshop.
« Reply #11 on: April 26, 2019, 06:31:29 PM »
Very impressive, RenÚ! Have to give this a try.

Were the texture files entirely hand-painted in Photoshop? Looks like some filters may have been applied to break up the colors and patterns.

Offline RenÚ

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Re: Rocks by using displacement and color maps made with Photoshop.
« Reply #12 on: April 27, 2019, 11:12:01 AM »
The displacement map is initially hand painted. Next I used filters and levels to add extra detail. From the displacement map I extracted the color map on which I applied a number of other operations. From the color map I generated a bump map on which I painted extra cracks and irregularities.
It has been a constant going back and forth between Photoshop and Terragen.

Offline the first seer

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Re: Rocks by using displacement and color maps made with Photoshop.
« Reply #13 on: May 05, 2019, 04:22:06 PM »
Great stuff!

Offline PcXT

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Re: Rocks by using displacement and color maps made with Photoshop.
« Reply #14 on: May 07, 2019, 06:33:59 AM »
Beautiful !
It's a great technique, i'll give it a try ! Thanx for sharing !