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Seems like you use HDRI environments, which I'm no expert of. I agree with Bee, it looks like the background is not properly adjusted with the foreground. I never had anythign of that sort happening.
@Isazforms I'm not quite sure what's going on here. Could you post what products you're using and what steps you took to get these results? Is there anything physical in the scene, or are they just HDRIS with the rain system? Are there any other lights in the scene?
Thanks for reply. The only thing on the scene is the "rain system" and the hdri. It is not a hdri error or mine, because they are the cameras that the hdri brings by default, besides that the error is also seen in "sun and sky". Also when I remove the "rain system" the line disappears. The product is "hdri outdoor enviroment" of "dimension theory".
Well this one had me puzzled for a bit, but i found the issue. The rain system doesn't seem to conflict with the HDRI's i've tested, but for some reason DT's sets just don't play nicely with it. The issue is the ground shadowing, it's very pronounced with DT's HDRs, which is causing an occlusion effect with the rain geo. There are a few ways you can get around this -
1. Turn off ground shadowing. You can do this by going to Render tab/Environment/Draw Ground and set it to OFF. Unfortunately this turns off all ground shadowing, so you won't get that little bit off occlusion you normally get under the characters feet.
2. Lower the shadow intensity. This is more preferable if you still want the shadows under the characters feet, but it will take a little bit of tweaking. Once again, go to Render tab/ Environment/Ground Shadow Intensity. There you will find a 1.0 value. If you scale this back, you will lessen the effect you're experiencing, whilst still keeping some ground shadowing. I found that 0.2-0.3 works, but it could vary from HDRI to HDRI.
3. Change the dome mode to infinite sphere. This is probably the least desirable option, because the HDRI becomes far less grounded and you'll need to manipulate the cameras. It is however an option if you wish to use it. Again, Render Tab/ Environment/ Dome Mode (change to infinite sphere).
If i find a any less invasive tactics to solve this issue, i'll let you know. What i have noticed is that the direct light in DT's HDRIs is incredibly strong (Just like default sun/sky mode). I'm sure he's made this decision for a good reason, but it's a bit troublesome with my rain kit. Anyway, i hope that helps, let me know if you have any more issues.
Already working correctly. Thank you very much.
I FINALLY figured out the rain system! (yeah yeah KindredArts, laugh at me, I know you want to) :D :D The one thing I did have trouble with was the puddle planes cos I just couldn't SEE the damn things in my viewport.....it occured to me much later i should have probably just changed the colour to a lime green or something, but hey, tha'ts hindsight, right? Right?
Used it in a promo I was doing for Fabi's new Umbrelli Girls poses/props. (One day I'll learn how to do good splashes with brushes...but not today...)
Well, i would laugh, but this is actually a really great render, so well done to you blue! Yeah, the puddle planes can be a bit tricky if you're using uneven ground or pavements, because it's placed slightly above Y=0. Whats with the little zombie chap anyway? I didn't notice him at first, is he like a little pet? Either way, fabi's got her $'s worth here
I did my first preview image using this rain system last night. I was getting a lot of light relection off the rain itself. It's a night sceane with lots of light. The lights from the windows, in the back of the sceane appear to be the problem. I'm assuming I need to turn down the emission luminence of the lights in question? I didn't have time to try any adjustments. It will have to wait until tonight.
Go to the Surfaces tab, select "RainSystem" and scroll down until you see "Refraction Index". The value is 2.5 by default, you should try lowering it to maybe 1.5 or lower. That *should* do the trick. If you don't have the surfaces tab already open, go to Window/panes/surfaces.
Thank you very much. I'll try that.
The lowest setting is 1. I lowered it to 1 and that really helped. I'm still working on the render. It's a complicated scene. I'll post it here when I finish.
Great stuff, glad it worked
Funnily enough, you can actually go below 1 by just turning off limits. From what i've seen though, the proccess seems to invert below 1 and you get a very strong fog/gloss effect. Anyway, good luck with the render, be sure to post when you've had some success.
Here is my first attempt, no postwork. I added puddles and splashes. I see the puddles but not the splashes. Not sure what I didn't do. I may have forgotten to add materials to the splashes? This render took hours.
Great render robert, well done
Not too sure what happened to the splashes, but they are quite discrete. They should be more pronounced at lower angles, but the further you get, the more discrete they are.
hi!
i've been playing with Iray Rain this week and really enjoying it...it's a wonderful asset.
today i'm wondering if there's a way to adjust the rain planes in surfaces so they filter out less ambient light without messing up the rain itself? i reckon i could compensate by just throwing more intense light at them (and i will try that later today--the results are bound to be interesting), but i'm curious.
thanks!
j
Hi Jardine! Could you expand on "filter out less ambient light"? Do you mean stronger reflections? weaker reflections? more of a misty effect?
sure!
thanks for asking. :)
rendering a scene with only one HDRI sky for lighting, i get strong warm light on my figure and clear shadows in the surrounding environment. when i render the same scene with the Iray Rain planes included, the lighting is significantly muted, and the setting doesn't look like a bright afternoon at all. it looks more like dusk or evening. all my shadows have disappeared, including the shadows contouring the figure.
i'm trying to catch the look of rain just beginning to fall on a sunny afternoon.
j
Ok, how does it look with lower exposure? Go to your render tab/Tone Mapping and change the Exposure Value from what i imagine is the default (13) to 12. Switch to iray viewport mode and see if that's a bit better. If not, knock it down to 11 or lower until it looks right. See how that goes and get back to me if you're still having difficulties.
thank you.
that sounds solid. i'll give it a try. :)
j
No problem, good luck. I'll be around if you get stuck :)
@jardine
As another alternative, you can try increasing the Intensity on the Environment or the Environment Map.
well, i got my light issue sorted out--thanks, fastbike1!--and i've been playing with the rain for the past week. (even gotten it to produce a really nice snowfall effect.)
now i'm wondering if it's possible to eliminate the cylindrical artifacts i get when i'm using j.cade's fantastic painter's lights with the rain planes.
if you hide off either the rain prop or the painter's lights sets, the artifacts vanish.
and they do really seem to be cylindrical...which seems pretty strange to me, as the rain prop seems to be a pretty linear beast.
in the interest of rounding out lighting information, the primary lighting in the scene is one of orestes graphics' hdris.
interesting stuff. curiouser and curiouser...
j
I don't own the painter lights set, could you tell me if the set uses any geometry? or is it HDRI's?
Painter’s lights is HDRI’s plus photometric lights.
I thought I'd share my own render with this set. I've been quite happy with it!
Rightly so! This is very nice.
+1, Glorious!
+2 Wonderful indeed!
@KindredArts - I have this product, and I'm very pleased with it. Thank you for making it. Early in this thread, you mentioned a method of putting droplets on a car, but nothing more was said about it (at least as far as I saw). Is this because it comes too close to SY's products? I'm doing a scene in which I need some droplets on an object. I'm considering trying to do it in Ultrascatter, but I'm afraid it won't be as lovely as your example of the car. Is there any way for us to get your product or is it something you might be willing to share insight to doing? I just really think that image is quite awesome.
Example of what car? If you link me to the image, i'll tell you how i did it. I did do droplets on glass as part of Iray Glassworx but they are complete shaders and not overlays, so they won't work on any sufrace other than glass.