Does anyone have any suggestions or help / ideas on how to resolve the ScrollRect (script) from causing the content [panel/portion] to get NaN values when scaling?
I have tried my own scaling + positioning script, as well as Unity’s ‘scale by screensize’ component.
Both cause this to ruin the Content portion of the Scrollview (setup of things).
Took me a while before I tried, but just disabling the scroll rect script prevents the problem from occuring, so I am fairly confident that the issue lies there.
I am stumped.
My project in Unity 5.5 had some scrolling content using ScrollRect that was working flawlessly, unfortunately now in 5.6 it is running into this NaN issue that you mentioned.
I did some digging on the forums and it seems like a number of people are having this issue. Maybe it’s a Unity 5.6 bug?
Edited my previous response that said I thought I had it fixed.
I have further tracked the bug down, it seems that using “Clamped” as the movement type will produce the NaN issue every time. Unrestricted (which I only tested for a few moments) seemed to work, as well as Elastic.
I would really prefer the clamped option, because I think it looks and feels better, but I can’t have the ScrollRect messing up, either
I’m going to investigate & test more.
If all goes well, I may try to implement a shift to Clamped when scrolling begins and revert when it ends until if / when this bug is resolved (provided this fix continues to work, as I test)…
Small update: It seems I can even set elasticity to 0 (zero) and it works, without errors. Which is both amazing and hillarious.
Will keep testing. =)
*Edit: Tested many times with all sorts of scaling and everything continues to work properly!
Thanks for the response, setting the ScrollRect to anything but Clamped seems to be helping. I’m not longer getting NaN values for my content. Now I just have to figure out this error:
From what I’ve read on other posts, this error is in the Editor itself. It seems to only trigger on one specific game object (the content in the ScrollRect I mentioned above), so I’m trying to see if I can rebuild it in a way that the error doesn’t trigger.
Hey, cool, glad you got yours working , also. I haven’t done much more since earlier, but I am happy to have a sort of fix for now, until if/when ‘Clamped’ gets patched
As for your error, unrelated I think to the original problem… but I am getting that, too! hahaha. Really have no idea what it means, but it doesn’t seem to be really, really bothering me
Would be happy to hear if you ever find a fix, though
Thanks I’ll definitely keep you posted. My actual scroll bar doesn’t seem to be working anymore either, so what I’m going to try next is disabling my current objects and rebuilding my scrollable space (ScrollRect, Mask, Content Panel, etc.) to see if I can avoid the error. If rebuilding it avoids the error, depending on the complexity it may be the better way to go. x.x
Mine isn’t super complex so I’ll rebuild it and get back to you.
Small Update: Just realized I still had NaN values in both my scroll bar and handle for my scroll bar, those have now been fixed. It seems like the scroll bar is now working (with the ScrollRect). I’ll update again once I’ve played it with a bit more.
Oh no! Sorry it stopped working. I hate when I think I have something figured out, and it breaks down… Though I did do a number of mini tests with my scroll rect. How did yours fail you, if you don’t mind my asking?
For me, the error is just a mild nuisance right now; my entire scene is just that + 1 resizable panel lol. I like building things like that, in an empty scene/project
After I removed all of the NaN values I didn’t notice at first, it looks like everything is working! I’m not seeing that other error anymore either, although I guess it could come back haha.
Yeah I’m not a huge fan of having it set to Elastic but it’ll do for now, I’m just glad it’s not broken anymore.
To answer your question, the NaN values were causing a bunch of stuff to not work (scroll bar, scroll bar handle, mask, etc.)
All fixed now though! Thanks again for posting this.
Ahh okay, awesome That’s good to hear.
As for elastic … setting it to zero and disabling inertia is very close to the clamped act & feel. I, too, would prefer Clamped, but we do what we have to do for now
No problem, btw… it started out as my own problem that ended up helping us both lol
I believe the problem is only with a Canvas using an orthographic camera for “Screen Space - Camera”.
Steps to Reproduce:
In new scene, create a TMPro Dropdown.
Create a new camera
Set new Camera Projection to Orthographic
Set Canvas Render Mode to Screen Space - Camera, linking to new camera
Press Play and see the NaN bug on the Dropdown Content transform.
What’s weird is this bug doesn’t happen if you do the above steps but instead of making a new camera, you change the Main Camera to Orthographic and link that.
So the workaround for me is to change my UI Camera to Perspective. This way I don’t have to fiddle with the clamped scrollbar stuff.
Update: Okay never mind, toggling Perspective/Orthographic only fixes one of my dropdowns. Another seemingly identical one can only be fixed by changing Clamped to Elastic??
That sounds partially related, maybe. I believe my setup was : orthographic and screen space overlay.
I was only using the scene to work on a couple of UI items; so I never really thought of the rest of the setup as part of the issue.
Did Elastic solve it for you, as well?
Same problem here, except I do not make changes to the scale of any object.
I rebuilt an empty scene with a scrollrect + container and two children images.
Issue only arises with the following conditions :
Canvas Render Mode : Screen Space - Camera
ScrollRect Movement Type : Clamped
As per my tests, it doesn’t matter whether the Camera is set to Orthographic or Perspective.
As soon as I change the ScrollRect to Clamped, the Container RectTransform’s Position goes nuts (aka NaN everywhere).
I tested every other combination and those are always working for me :
Screen Space - Camera & Elastic or Unrestricted
Screen Space - Overlay & Any ScrollRect Movement Type
World Space & Any ScrollRect Movement Type
Tested on Unity 5.6.0f3 on Mac OSX 10.11.6, iOS Platform
I can’t think of any way to fix this, can’t afford to change Canvas Render Mode or ScrollRect on my project so switching to Unity 5.5.3 until it is fixed by UT.
Edit : added precisions about the issue not being related to scale in my case.
Before seeing some posts talking about different camera options, I had not ever tried those.
On a couple of quick tests, perspective/orthographic made no difference to me.
One difference between your tests @ErwanB and mine is that Screen space overlay and movement Clamped always gives me issues (to clarify, by always I mean if I scale it down. This problem doesn’t happen at all sizes/scales to begin with).
It’s all good and working in Unity 5.5.3 for you? That’s good, at least.
To be honest, I missed the part about scaling. All my ScrollRects are at nominal scale and I do not change their scale at anytime. Still they broke all the same. I’ve edited my previous post to make that clear.
Concerning 5.5.3 :
Upgraded from 5.5.0f3 > 5.6.0f3 : broke everything
Upgraded from 5.5.0f3 > 5.5.3f1: all good
About scaling, I’m not sure I get what exactly it is that you’re doing and that is causing the problem even with SS-Overlay. Updating scrollrect’s scale at runtime ? Changing Game view resolution ?
Yeah, that was my personal issue when I began this thread before I knew the whole problem/work-around.
I was building a ScrollView/Rect inside a panel that can resize; and whether through my own script or the canvas scaler option, at a certain point the Content portion of my ScrollView would get those NaN errors… At full scale it didn’t happen, at least one the size I was using, etc… If that makes sense.
Hey everyone, I’ve been harping on this issue since it was introduced in Unity 5.6 beta 2. Here are some of the bug’s i’ve submitted, help vote them up so they are addressed quickly.
The first one is not related to things being created by script, I was reproducing it regular way and that way but the creation-by-script helped show there wasn’t any carry-over meta information from the game objects.
The dropdowns freezing in screen space camera is directly related to the scroll rect content NaN issue
The last one someone else filed with the scroll rect viewport getting NaNs, they claim it’s fixed, but I don’t think its in the official release, could also not be related.
Hopefully it’ll be addressed sooner now that more people are having issues with 5.6 being live.
Unfortunately I don’t have much time to investigate more on this, just want to share another case I’ve tested :
I created a new canvas/panel/scrollrect with Screen Space Ovelay and Clamped => Works fine when scaling the panel that contains the ScrollRect.
Then I switch Canvas to Screen Space Camera => Breaks ScrollRect’s container’s transform
Switching back to Screen Space Overlay => Still broken.
So if using Screen Space Camera, I guess you could switch Render Mode on your canvas before upgrading your project to 5.6 to avoid it breaking your transforms. That is if you are OK with using Screen Space Overlay or World Space until it’s fixed by UT.
I found if you set up the dropdown on a canvas where the Render mode is NOT set to Screen Space - Camera, you can adjust it, set it up, then switch Render Mode to Screen Space Camera and it works.
