If my point caches are way out in space, like (60 thousand, 60 thousand, 60 thousand), I've noticed the hair fades away in renders. It almost looks like a thin whispy frizz layer. What I've been doing as a test is parent the hair to a null and move it back to the origin and it renders as expected. I've seen similar behavior with geo caches crawling due to math errors when they're very far from origin. Interestingly, at this distance the geo holds up. Any insight into this kind of issue? Is it an expected behavior when dealing with these kinds of coordinates? Is there anything I could do to prevent it? |
| Are you using V-Ray to render the hair? Marsel Khadiyev (Software Developer, EPHERE Inc.) |
| Yes. Should have mentioned that. |
| Ok, if you can send me some basic scene which shows this I can bug Vlado to investigate it :) Marsel Khadiyev (Software Developer, EPHERE Inc.) |
| I knew you would say that! heheh. I will definitely put something together ASAP. |
| Hehe, it is great when you can anticipate a response! We've been working alongside long enough. Marsel Khadiyev (Software Developer, EPHERE Inc.) |
| Yeah so it took me a while to get around to this but maybe you can take a look. There are two cameras, three nulls, a light and a hairball in this scene. If you position the hairball in front of either camera you'll notice difference when rendered at the origin vs rendered way out in space. Would this be the type of thing we could address in Vray or Ornatrix or is this a Max limitation? |
| Thank you for the scene Danny, I will look into it. Marsel Khadiyev (Software Developer, EPHERE Inc.) |
| Looks like something on VRay's end (rendering as mesh or in scanline works ok), will work with Chaos to resolve this. Marsel Khadiyev (Software Developer, EPHERE Inc.) |
| The problem is with Embree. Turning it off for hair will solve the problem. Chaos will try and fix this. Marsel Khadiyev (Software Developer, EPHERE Inc.) |
| Nice! Disappointed I didn't think to try that myself. Let me know if you hear about any updates. Thank you! |
