Page 126 of 143

Re: Limit Theory Fan Contest - Discussion

Posted: Tue Sep 26, 2017 11:46 am
by Dinosawer
Well it's not that I don't have time at all, it's that I don't have a lot of large blocks of it. Creating something kinda requires a free afternoon or two, whereas judging I imagine I can do in smaller parts.
Anyway, I say I give it a try for a month and I'll see if it works out.

Might have time to do this again in, say, a year or so, but we'll see :)
(idea is for Femsawer and I to look for a place together somewhere next year, closer to where we both work (so less time lost in driving to work) and also no longer requiring us to go out as much to see each other :D )

Re: Limit Theory Fan Contest - Discussion

Posted: Tue Oct 03, 2017 2:36 pm
by Talvieno
I meant to get the fan contest started a couple days ago, but forgot. :oops: I've had some other stuff going on lately. I'll get to this today - and get the judging spreadsheets sent to Dino as well.

Re: Limit Theory Fan Contest - Discussion

Posted: Wed Oct 04, 2017 1:57 am
by CSE
Talvieno wrote:
Tue Oct 03, 2017 2:36 pm
I meant to get the fan contest started a couple days ago, but forgot. :oops: I've had some other stuff going on lately. I'll get to this today - and get the judging spreadsheets sent to Dino as well.
Yeah!
The LTFC is like LT itself. It may pause, but never yield!

Re: Limit Theory Fan Contest - Discussion

Posted: Wed Oct 04, 2017 2:06 am
by Dinosawer
Ah good, I have nothing to do this weekend for once :ghost:

Re: Limit Theory Fan Contest - Discussion

Posted: Wed Oct 04, 2017 12:00 pm
by HowSerendipitous
And I've been working on my 3D planets too in readiness :twisted:

Re: Limit Theory Fan Contest - Discussion

Posted: Thu Oct 05, 2017 8:44 am
by CSE
HowSerendipitous wrote:
Wed Oct 04, 2017 12:00 pm
And I've been working on my 3D planets too in readiness :twisted:
And I on my procedural height maps and texturing - never model again, the lazy 3D artist solution(tm)

Image

The Vue equation editor is not self-explaining, but... with sweat it is possible to (mostly) make it what I want. Still lot's of issues, though.

Re: Limit Theory Fan Contest - Discussion

Posted: Thu Oct 05, 2017 8:55 am
by Talvieno
Very impressive, guys. :D I'm excited to see what you'll do with this month's topic.

Re: Limit Theory Fan Contest - Discussion

Posted: Thu Oct 05, 2017 12:52 pm
by CSE
CSE wrote:
Thu Oct 05, 2017 8:44 am
The Vue equation editor is not self-explaining, but... with sweat it is possible to (mostly) make it what I want. Still lot's of issues, though.
A propos, HS - do you per chance know if there is in the equation editor any derivative/slope/normal function I can use? Not on coordinates, but on numbers.
Context: I use a noise node to get a pattern based on the location (x, y, z)->[0-1]. This pattern has distinct regions of the same value (imagine for example a political map: countries in one colour; one with 0.2, another with another colour 0.5 for example). I try to get the frontiers, so the locations where the value change (from 0.2 to 0.5 in our example) in order to make a line pattern (so from a (x, y, z), I get 1 if on the frontier, 0 if not). Could not find anything... it seems that as soon as the coordinates are transformed in a number, they loose the "view" of their neighbours.
Thanks for any hints...

Re: Limit Theory Fan Contest - Discussion

Posted: Thu Oct 05, 2017 2:46 pm
by HowSerendipitous
CSE wrote:
Thu Oct 05, 2017 12:52 pm
CSE wrote:
Thu Oct 05, 2017 8:44 am
The Vue equation editor is not self-explaining, but... with sweat it is possible to (mostly) make it what I want. Still lot's of issues, though.
A propos, HS - do you per chance know if there is in the equation editor any derivative/slope/normal function I can use? Not on coordinates, but on numbers.
Context: I use a noise node to get a pattern based on the location (x, y, z)->[0-1]. This pattern has distinct regions of the same value (imagine for example a political map: countries in one colour; one with 0.2, another with another colour 0.5 for example). I try to get the frontiers, so the locations where the value change (from 0.2 to 0.5 in our example) in order to make a line pattern (so from a (x, y, z), I get 1 if on the frontier, 0 if not). Could not find anything... it seems that as soon as the coordinates are transformed in a number, they loose the "view" of their neighbours.
Thanks for any hints...
Hmmm, that's a good question. Could you achieve the same effect with a mixed material using some kinda' cellular function, I wonder? Must admit, that's a tricky one :twisted:

Re: Limit Theory Fan Contest - Discussion

Posted: Thu Oct 05, 2017 4:44 pm
by 0111narwhalz
Have you tried using some kind of offset? If you have (u,v) and measure points adjacent to it (like (u+d,v) and so on) you should be able to determine whether a given point is on an edge by comparing the values of those points. With smaller values of d you'll more closely approach a derivative, and your edge detection output will be stronger.

Re: Limit Theory Fan Contest - Discussion

Posted: Thu Oct 05, 2017 5:28 pm
by CSE
0111narwhalz wrote:
Thu Oct 05, 2017 4:44 pm
Have you tried using some kind of offset? If you have (u,v) and measure points adjacent to it (like (u+d,v) and so on) you should be able to determine whether a given point is on an edge by comparing the values of those points. With smaller values of d you'll more closely approach a derivative, and your edge detection output will be stronger.
This is a very good idea. Offset in one direction (x), then the other (y), substract both times with initial, take absolute value, add both, filter to a certain threshold... pity it's 1:30am and I just switched off my computer - need to try tomorrow!
Thanks HS and Narwhalz for your input!

Re: Limit Theory Fan Contest - Discussion

Posted: Wed Oct 18, 2017 3:59 am
by Dinosawer
Erm, is it just me or did Catsu's images stop working here?
viewtopic.php?f=31&t=6168

Re: Limit Theory Fan Contest - Discussion

Posted: Wed Oct 18, 2017 4:03 am
by Cornflakes_91
Dinosawer wrote:
Wed Oct 18, 2017 3:59 am
Erm, is it just me or did Catsu's images stop working here?
viewtopic.php?f=31&t=6168
nope.

it just says "image" for me

(HS' mirror also stopped working)

Re: Limit Theory Fan Contest - Discussion

Posted: Wed Oct 18, 2017 4:08 am
by Dinosawer
Oh yeah that too, but his high-res version still works so that's less of a problem

Re: Limit Theory Fan Contest - Discussion

Posted: Wed Oct 18, 2017 4:56 am
by HowSerendipitous
Yeah, I saw that. Stupid Photobucket!