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General => Terragen Discussion => Topic started by: mhaze on July 19, 2013, 11:43:00 AM

Title: A Challenge
Post by: mhaze on July 19, 2013, 11:43:00 AM
Here's a challenge -  a population of vector displacements  any ideas shader array using image shader perhaps?
Title: Re: A Challenge
Post by: j meyer on July 19, 2013, 11:45:59 AM
If you have not already tried I suggest to try to move a VDisp via transform shader
and see what happens.
Title: Re: A Challenge
Post by: Tangled-Universe on July 19, 2013, 11:55:54 AM
Not much need of a shader array if you can repeat the vdisp on x and y through the image map shader?

Fractal mixing of a couple repetitive vdisp's may give fun results though.
Title: Re: A Challenge
Post by: mhaze on July 19, 2013, 12:27:57 PM
Yeah didn't realize how limited the shader array is!  I wanted to get away from the repeated look need scaling and rotation.  Fractal mixing of a couple repetitive vdisp's is worth trying.
Title: Re: A Challenge
Post by: bobbystahr on July 20, 2013, 04:51:13 PM
I'm a bit confused by this...how do you do a 'population of displacements' ?
Title: Re: A Challenge
Post by: fleetwood on July 20, 2013, 07:00:09 PM
Smurf Cap Mountain
This is not a standard object population, the smaller vector disp has simple x,y image repetition, the large displacement is a single with no repetition.
As you can see, they can build on each other.
Title: Re: A Challenge
Post by: bobbystahr on July 20, 2013, 08:01:54 PM
Quote from: fleetwood on July 20, 2013, 07:00:09 PM
Smurf Cap Mountain
This is not a standard object population, the smaller vector disp has simple x,y image repetition, the large displacement is a single with no repetition.
As you can see, they can build on each other.
would you mind posting the .tgd...this is intriguing and I'd love to explore the technique...thanks
Title: Re: A Challenge
Post by: Dune on July 21, 2013, 03:37:58 AM
If you want to get rid of the repetitiveness, feed them trough a warp shader or blend them by PF.
Title: Re: A Challenge
Post by: fleetwood on July 21, 2013, 10:17:34 AM
Quote from: bobbystahr on July 20, 2013, 08:01:54 PM

would you mind posting the .tgd...this is intriguing and I'd love to explore the technique...thanks

I don't have time to package it up now, getting ready for a trip.
But I did post one of the vector displacement files in the discussion area June 09.
It's subject is Vector Displacement Shader : the Offsets

Here is the network setup for Smurf Cap. It's nothing special, this was just a rough and ready experiment.
The small repeated displacement uses a displacement file
I made in C4D and is the same one I posted already. It comes first in the network and I used x,y,z multipliers of 1,1.1,1.

The big mountain has x,y,z multipliers of 400,600,-400 and it is generated by 3 different gradient type images
that I created in an image editor.

Title: Re: A Challenge
Post by: bobbystahr on July 22, 2013, 01:00:42 AM
Well how about that...I never noticed that shader sitting there at the bottom of the list....oh well, live and learn I always say....
Title: Re: A Challenge
Post by: DannyG on July 22, 2013, 10:39:03 AM
Thks for the screen shot Fleetwood
Title: Re: A Challenge
Post by: bobbystahr on July 22, 2013, 01:38:52 PM
Quote from: DannyGordon on July 22, 2013, 10:39:03 AM
Thks for the screen shot Fleetwood
ditto to this as well