Hey guys ! We are actually updating all our characters for The Jungle Bunch season 2 with VRay 3 and Ox 3, giving us some headache... :) I'm struggling with the Ox Hair material node, I used it to add some hue and value variation to the fur shader (vray hair material). With those upgrades, it doesn't seems to react the same way and I dont find any ways to have this work again... (by the way, the channel parameters box makes vray crash, with per-root activated for exemple) Also, the frizz modifier added with Ox 2 aren't working with Ox 3, you have to make a new one, copy the values and delete the old one, a little bit time consuming but that's working. Do you have any idea about this ? Or a different way to add variations in the fur shader ? Thanks ! David Lead character artist, TAT Studio |
| Hi David, We will look into the Ox Hair map. No code was changed there so it seems strange that it would stop working, Can you provide a simple scene demonstrating the issue (if not I will just try to reproduce it)? Can you also provide a scene ith a frizz modifier which doesn't work the same in V3? The modifier was improved so maybe something got shifted regarding its saved data. Best regards Marsel Khadiyev (Software Developer, EPHERE Inc.) |
| Hi Marsel, Do you have a mail where i'll send you a wetransfer link ? Lead character artist, TAT Studio |
| Here is for exemple when i merge the same character from Max2013 Vray2 Ox2 to Max2015 Vray3 Ox3, let me know your mail adress and i'll send you the scenes. Best regards, David
Attached Files:  Lead character artist, TAT Studio |
| Please send them to marsel.khadiyev (at) ephere.com Marsel Khadiyev (Software Developer, EPHERE Inc.) |
| Ok I sended the files :) Lead character artist, TAT Studio |
| Hi there ! Any news about this ? Did you had some time to check the files ? Lead character artist, TAT Studio |
| Hi David, I didn't get around to it yet. I hope to post something soon. Thank you, Marsel Khadiyev (Software Developer, EPHERE Inc.) |
| Regarding Ox Hair map, this is actually due to a change in V-Ray 3 and not in Ox 3 (Ox 2 with V-Ray 3 will give same results). We have emailed back and forth with Chaor Group about it before and I just pinged them again. Hopefully there can be a good resolution for that. Perhaps for now you can use a noise map to simulate the hue variations? I have opened and rendered the coala scene. I wonder if there is a simpler way to reproduce this change because the scene you sent is a bit heavy. I will try that too. Marsel Khadiyev (Software Developer, EPHERE Inc.) |
| I received more information from Chaos Group and they are saying that there was indeed a change in VRay V3 which caused Ox Hair map to stop producing unique per-strand colors. While they cannot fix it at the moment there is a workaround. You can use VRayHairInfoTex map to assign varying hue to each strand and use that as an input to a diffuse map. I have to see if I can come up with an exception in Ox Hair map for VRay 3 so it continues to function correctly when used with VRay. Marsel Khadiyev (Software Developer, EPHERE Inc.) |
| Oh thanks Marsel, previously the random by strand index mode of the VrayHairInfoTex wasn't working, that's why I was using the OxHair map ! But now it's the opposite haha.. Ok let's change all this maps so.. Did you noticed the issue with the frizz modifier ? Thanks a lot for the investigation :) Lead character artist, TAT Studio |
| Actually Vlado (from Chaos) said they will fix this in VRay 3 so Ox Hair map will work again. With the frizz modifier I rendered it and got the same result as you. However, I wish I could reproduce it in a simpler scene. Are you sure it is the frizz and not clustering modifier? I will try to install Ornatrix V2 and save the file to see what changed. Marsel Khadiyev (Software Developer, EPHERE Inc.) |
| Great about the Ox Hair map ! Well, this frizz modifier is here to make the cluster less visible, if I delete and make a new frizz modifier with the same parameters it's ok. The issue, I think, is with the new "box" inside the frizz modifier, if you take a frizz modifier done in v2 and open it in v3 there is no curve information in this new parameter, maybe if you could isolate this case you could put a default value ? Not sure if I'm very clear... Again, it's working deleting and making a new one in v3 so there is the default value, but this is a bit time consuming for us... Hope it helps, thanks Lead character artist, TAT Studio |
| The Ox Hair Map issue should be fixed in the next nightly build and service pack for VRay V3. Marsel Khadiyev (Software Developer, EPHERE Inc.) |
| Hey Marsel, thanks a lot for the help. Lead character artist, TAT Studio |
