Rich Dirt VRay Solution?

[Teriander]

Im working on an exterior scene and Im looking into creating an effect like "Rich Dirt" http://www.enrichpro.com/en/richdirt/index.html . Does anyone know a quick way to create an effect like this? Rich Dirt doesn't work with VRay. They recommend converting my scene to Mental Ray, Render out elements, bring into a 3rd party compositor, etc. Unacceptable.

It looks like I might need to hand paint the dirt streaks, unless there is a way to get the streaks using VRay Dirt or another alternative solution you may know of?

[instinct]

Good tileable streak and dirt maps (or your fav procedural setup heh) + VRayDirt with bias and inverted normals etc. (http://www.spot3d.com/vray/help/150S...s_vraydirt.htm)

Not as conventient but should get you close.

Regards,
Thorsten

[Deflaminis]

On the web page it says it does work with vray as a render element... wonder what's going on there.

Of course you'll need to use a 3rd party compositor... that's a given. Why would you want to render your AO with your beauty? I don't see a good reason to do that. Vray dirt or AO at the right settings can really bump up your render time. Then if the client makes a small change you have to render it all over again instead of just the offending pass. It also limits you as to how that AO lays over your image. You can't make subtle gamma or exposure adjustments to the AO in that case... just seems like a huge headache all around to render that way and convert all your mats to using vray dirt instead of just an extra tex pass or ao render.

Seems to me it would be much more work to *not* do it as an element and comp afterwards. Feels like your final solution to just paint it in photoshop could be considered a 3rd party compositor with you manually creating the elements. The only thing there that seems totally ridiculous is the converting to mental ray. They might as well advise you to cut our your eyes to solve the problem.

[Teriander]

Deflaminis,
I don't have a huge problem with using 3rd Party Compositor. In fact my final output is EXR and Im bring it into after effects anyway. The part that bothers me the most is converting my scene to Mental Ray just to render out the dirt pass. LIke you said, its like cut out your eyes to solve the problem.

[Neilg]

Use some maps in the vray dirt. I dont think it'd be hard at all to recreate what they're doing.

[Deflaminis]

Deflaminis,
I don't have a huge problem with using 3rd Party Compositor. In fact my final output is EXR and Im bring it into after effects anyway. The part that bothers me the most is converting my scene to Mental Ray just to render out the dirt pass. LIke you said, its like cut out your eyes to solve the problem.

Yeah that does seem ridiculous. I wonder why they wanted you to switch to mental ray. The web page says it works with vray, but I am glad I didn't buy this if it's false.

[matttthias]

native version for V-Ray

Hi Teriander,

thanks that you like the effects that one can do with RichDirt. Good news - a native version of RichDirt for V-Ray is currently developped. Once this is available you can stay inside V-Ray all of the time. The vray and mental rays sdks are quite different (V-Ray is more modern with higher class abstraction), so porting will need some time.

In the meantime i would recommend the 2 foillowing excellent workarounds. They use 100% Vraydirt, so one can directly apply them (no extra software required).

a) The V-Ray Cinema4d users had a similar discussion:
http://forum.vrayforc4d.com/showthread.php?t=9691
See post number 7 by Belushy - he uses a projected map. This should work fine for many cases, in particular when you have good uv´s available.

b) Peter Guthrie has a detailed tutorial that is done with 3dsmax, so it is easy to follow the
individual steps:
http://www.peterguthrie.net/blog/200...dirt-tutorial/


Peter had less of streaks (he already had streaks in the concrete textures applied to the bridge), but one can easily copy the idea from Belushy to get more flexibility.


Best Regards,
Matthias

[JeffG2]

Wow, talk about helpful! Can wait to use your actual plugin.

[Deflaminis]

Matthias it's cool that you followed up on this, but your web site clearly states it works with vray when it does not. It's a shame too because when I saw it I was thinking it was well worth the low cost, but now I'm thinking you can't be trusted.

[yyk]

Matthias it's cool that you followed up on this, but your web site clearly states it works with vray when it does not. It's a shame too because when I saw it I was thinking it was well worth the low cost, but now I'm thinking you can't be trusted.

Where does it state it "works with Vray"? There is a section dedicated to using RichDirt with Vray render elements which gives you a very clear picture about how easy/hard it is to get this to work via Vray. Why are you being so aggressive with your statement?

Anyway looks interesting, hope to see more direct Vray stuff in the future!

[instinct]

Where does it state it "works with Vray"?

On the frontpage:

[QUOTE]
RichDirt also can be used from V-Ray via Render Elements: see RichDirt + V-Ray
[/QUOTE]

It states it would work "from" vray, which is wrong. And it does not work via renderelements either. You will not get a Renderelement, but a seperate layer unless i am completely mistaken. I addition it claims to work with VRayDisplacement. How would that work if i render the dirt layer with MR ?

[yyk]

[QUOTE=instinct;526160]On the frontpage:

RichDirt also can be used from V-Ray via Render Elements: see RichDirt + V-Ray
[/QUOTE]

It states it would work "from" vray, which is wrong. And it does not work via renderelements either. You will not get a Renderelement, but a seperate layer unless i am completely mistaken. I addition it claims to work with VRayDisplacement. How would that work if i render the dirt layer with MR ?

Ok then, I misinterpreted. Thanks for clarifying, carry on

[instinct]

That sounded harsher than i meant i guess hehe. Looking forward to a real VRay version and surely not a bad tool. Just the marketing seems off :/

[Teriander]

Well I actually painted the streaks using a mixture of max, photoshop, and some images from cgtextures. Here is a link to what I've got. It might be hard to see, but if you look closely at the house's wall you'll see the water stains running down the side. I can't wait for the plugin to be truly ready for vray! Good Luck Mattt!

http://img.photobucket.com/albums/v7...Home_00006.jpg

[GLASS-CANVAS]

Well I actually painted the streaks using a mixture of max, photoshop, and some images from cgtextures. Here is a link to what I've got. It might be hard to see, but if you look closely at the house's wall you'll see the water stains running down the side. I can't wait for the plugin to be truly ready for vray! Good Luck Mattt!

http://img.photobucket.com/albums/v7...Home_00006.jpg

Great image!