ATTENTION! to detail
daveso
Posts: 7,918
in The Commons
how many times do you do this beautifl render, even post it to a gallery, and all of a sudden you notice a toe poking in somewhere, a finger going into the palm, hair growing into a shoulder, coming out a chest, whatever. Poke through, peek through, weird bends and contartions, texture seams, etc etc etc.
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All the time...
LOL, I guess it still happens once in a while, but that's what quick testrenders are for, I usually spotrender details to see if for example displacement will mess things up, or eyes look ok and so on, if I want to redo a render it's more that I would like to have a different camera angle or lightning could be improved, stuff like that. But every render can be improved infinitely, you just have to drop it at some point and move on=)
This happens to me so often! I have "simple" scenes that I've rendered 12+ times because I keep noticing little details like that too late!
Yup. I often will render things multiple times because of this. Lately I have been doing nothing but character kitbash mockups. I normally pose the character in three positions to showcase the costume. What really sucks is when I fix the poke through on one piece and then re-render only to discover another one from a different angel that I couldn't see the first time. LOL
I had a scene I had been working on for a few days. made several changes to try and get things just right and then set it up to render over night. Next morning, found that the feet of one of the figures was under the floor several inches, DOH!
The preview window in iray shader mode is frequently too dark for me.
however spot render and render to new window will save time to correct those pesky blooper areas.
Since I know a lot of folks didn't know about this possibility, and may not know how to do it, real quick:
1) Choose the Spot Render Tool
2) On the Tool Settings tab there are 2 radio buttons. Click the one that says New Render.
This saved my sanity a few times :D
I didn't know about spot rendering in a new window. Thank you for pointing this out!!! Going to help out a lot.
I always try to preview my images in full screen before rendering. I also have a short checklist (1 Hands, 2 Feet, 3 Hair, 4 Clothes) and double check to make sure they aren't "floating" above anything they're supposed to be touching, but not INSIDE anything they're supposed to be touching before hitting "render".
It helps a lot, but even with the precautions I still end up with poke through or fingers inside hip, etc, every once in a while. lol It helps to do the checklist thing though, that's saved me a lot of wasted time rendering images with those kinds of problems that I would have had to render over again.
Here's another little detail, about Spot Rendering to a new window... Only relevant if you use "Local Dimensions" on your camera.
Make sure the global Dimensions under Render Settings->General match the Local Dimensions of your camera, as the spot render will use the global dimensions regardless of the camera's settings.
It's bad enough to need a spot render to fix that poke-through, but a real hair-puller to leave the render while you go do something else, only to find the spot doesn't fit the original image and you have to render it again!
...really bad when it happens in Iray and you are stuck rendering on the CPU. Had it happen on a number of occasions, not fun wasting 5, 6, 8, 10 or more hours of rendering.
I do it all the time - especially if I'm doing a render of a couple of people. There is usually a finger sticking into someone's shoulder. Iray has made this occur much less frequently though as you can often spot problems after the first few dozen cycles.
On thing to add about using the spot render to new window if you are not great at matching the parts up again in your photo editing program. I load the spot rendered PNG into Photoshop and then using a small brush I make a dot in the top left and bottom right corners so that I've got about a quarter of a circle in each. When I copy and paste this into the original image, it goes exactly where its supposed to do and I can then remove the dots.
So you fix the hand position and then just spot render the hand and then paste it into the already rendered image in post work? That sounds like it might be a big time saver for images that take ages to render. :)
Yep. saves a lotof time, I also spot render parts that don't clean up as fast as the rest of the render, faces in shadow, reflective surface water etc, if I don't want to use the background but there's the problem with the eyes without using it I spot render the eye area with the background. Really saves time whether you are CPU rendering or not. I even spot render and compile images so that I can use the GPU, figures in the background etc.
That's what I've been doing. Though Photoshop CS has a script to stack files, and it puts the spots exactly where they need to be. Before I realized I had that script, though, I would open the png in PS and add a new layer of color, group the two and drag the group in and use the full layer to set the spot in place, then pull the spot layer out of the group and delete the group. I think i really like Dim Reaper's solution much better, if you don't have photoshop., or your version doesn't have the script to stack files.
I know what you mean, but Render throttle product really helped alot with this
https://www.daz3d.com/render-throttle-for-iray
I do spot render a lot. Works for other things as well like if you use a body hair product with serious pokethrough I render one pass with hair and another without and combine post. It also works with clothing that you can’t really fit together. Render them separately and combine.
I don't often post renders anywhere but when I look at pictures I've rendered a while ago I sometimes notice problems with them. I think this is the sort of thing that happens when one person is working on something. In software development a lot of errors are only spotted when someone else tests your code. I think that if you overlook something in your design you usually carry on overlooking it in the testing.
I think the best approach with renders is to put them to one side and do something else for a while, then go back to them and look at them closely.
Oh thank you for that information! I use spot renders a lot (I render CPU-only so doing a complete re-render is not an attractive option) and I've "randomly" had problems where the spot render doesn't line up properly and I couldn't understand why. I'll bet it has happened when I'm using a camera set up for the scene by a PA (I never mess with local dimensions on my own cameras). Now I know!