Edge Opacity Procedural

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Edge Opacity Procedural

Postby 3dreamstudios » Thu Mar 09, 2017 2:14 pm

3dreamstudios Thu Mar 09, 2017 2:14 pm
I'm looking for a way to soften the edge of a pathway. I was hoping to use the DIRT procedural as an opacity node on the edges. However with no detail and just a flat poly there is no DIRT layer that the proc. creates.

Any other ideas of how to do this? We use to have a shader in Native LW that would color the EDGES it was called eeGrit and Anything Goos.
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Re: Edge Opacity Procedural

Postby 3dreamstudios » Thu Mar 09, 2017 2:48 pm

3dreamstudios Thu Mar 09, 2017 2:48 pm
If I bevel up the path giving me more edge at the corners, I can begin to get the dirt shader to recognize an edge and begin shading.

However if I run this into a material mixer or Opacity input I'm not getting any results. If I run the output of the Dirt into a ColorCorrect and INVERT the texture I get exactly opposite of what I want (edge2.jpg) One would think that without the invert I would get what I'm looking for...but all I get is black edges...What gives?
Attachments
edge2.jpg
edge1.jpg
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Re: Edge Opacity Procedural

Postby 3dreamstudios » Fri Mar 10, 2017 8:03 pm

3dreamstudios Fri Mar 10, 2017 8:03 pm
no body has any ideas? Bug?
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Re: Edge Opacity Procedural

Postby FrankPooleFloating » Fri Mar 10, 2017 11:04 pm

FrankPooleFloating Fri Mar 10, 2017 11:04 pm
edit: LWG solved ;)
Last edited by FrankPooleFloating on Sat Mar 11, 2017 1:03 pm, edited 1 time in total.
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Re: Edge Opacity Procedural

Postby LightwaveGuru » Sat Mar 11, 2017 11:04 am

LightwaveGuru Sat Mar 11, 2017 11:04 am
3dreamstudios wrote:If I bevel up the path giving me more edge at the corners, I can begin to get the dirt shader to recognize an edge and begin shading.

However if I run this into a material mixer or Opacity input I'm not getting any results. If I run the output of the Dirt into a ColorCorrect and INVERT the texture I get exactly opposite of what I want (edge2.jpg) One would think that without the invert I would get what I'm looking for...but all I get is black edges...What gives?



go with the "tolerance" parameter in the dirt node up and see whats done!

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Re: Edge Opacity Procedural

Postby 3dreamstudios » Mon Mar 13, 2017 12:48 pm

3dreamstudios Mon Mar 13, 2017 12:48 pm
LightwaveGuru wrote:
3dreamstudios wrote:If I bevel up the path giving me more edge at the corners, I can begin to get the dirt shader to recognize an edge and begin shading.

However if I run this into a material mixer or Opacity input I'm not getting any results. If I run the output of the Dirt into a ColorCorrect and INVERT the texture I get exactly opposite of what I want (edge2.jpg) One would think that without the invert I would get what I'm looking for...but all I get is black edges...What gives?



go with the "tolerance" parameter in the dirt node up and see whats done!

snip lwguru


I'm happy to hear both of you are seeing results, however I played again with every parameter in many different values and cannot get an edge opacity to be visible. Any chance either of you could adjust the parameters in this test scene to show me the values you are wanting me to try?

Or screen grab on your side? My path is showing 30'x7'x2" ( I don't care about the height, as I really don't want it but that's the only way I've got any edge out of the dirt node)

Thank you in advance!
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edge-opacity.zip
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Re: Edge Opacity Procedural

Postby FrankPooleFloating » Mon Mar 13, 2017 1:14 pm

FrankPooleFloating Mon Mar 13, 2017 1:14 pm
I didn't try it, and only assumed it worked, because LWG said so. I originally suggested you just do this with UVs and get on with your dang life. ;)
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Re: Edge Opacity Procedural

Postby 3dreamstudios » Mon Mar 13, 2017 1:16 pm

3dreamstudios Mon Mar 13, 2017 1:16 pm
FrankPooleFloating wrote:I didn't try it, and only assumed it worked, because LWG said so. I originally suggested you just do this with UVs and get on with your dang life. ;)


Yea you would think if LWG had a fix it would work. Maybe he was just guessing at the Tolerance...not sure. It doesn't do anything for me, nor do any of the other options for this technique. Life has moved forward, just wanting to learn for the next time! Thanks though. :lol:
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Re: Edge Opacity Procedural

Postby alexos » Tue Mar 14, 2017 2:47 pm

alexos Tue Mar 14, 2017 2:47 pm
Not sure I understand your problem, but in order to get the dirt node to work perhaps you should try the other way round, beveling the surrounding polygons rather than the path? Like so...

IPR_image.jpg


ADP.
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Re: Edge Opacity Procedural

Postby 3dreamstudios » Tue Mar 14, 2017 4:02 pm

3dreamstudios Tue Mar 14, 2017 4:02 pm
alexos wrote:Not sure I understand your problem, but in order to get the dirt node to work perhaps you should try the other way round, beveling the surrounding polygons rather than the path? Like so...

IPR_image.jpg


ADP.


That's not bad! I was hoping to have some separate geometry that I could just push and pull around as needed on top of the layer I'm wanting to have fade through. Keeps the model cleaner in some ways for changes. But may look at doing what you've done here.

Thanks for the feedback.
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