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Subject: Blender 2.8 Keyframe Bug?


LuxXeon ( ) posted Tue, 12 February 2019 at 2:54 PM · edited Thu, 28 November 2024 at 4:35 AM

Don't know if this was reported or not yet. I'll ask here first, then I'll go search over on the Stack Exchange or Blender Artist forums. I'm using the latest beta of 2.8, trying to animate a scene in Eevee. I have two cameras in the scene (haven't tried to reproduce this with just one camera in the scene yet, but I imagine it will be the same). Using the Eevee rendered viewport, I turn on Automatic Keyframes, select the camera I wish to animate (CTRL+0), move its position, go to another frame on the timeline then move its position again to set another keyframe. Now I try to move the camera again to set another keyframe and it snaps back to the first position. It will not let me move the camera through the camera view.

Nothing I do seems to fix this issue. I do not have snapping on, I do not have modifiers in the scene, I do not have constraints attached, I do not have any rigging or any such related animation features. I never had this problem in the older versions that I could recall, so I think this could be a bug. Could anyone else reproduce this issue? Again, I'm using EEvee rendered view through the active camera (Alt+0) with Auto Keyframe enabled.

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LuxXeon ( ) posted Tue, 12 February 2019 at 3:00 PM

BTW, I turned off AutoKeyframes and the issue still persists. Seems like Blender will only allow me to set two keyframes for the camera when I'm in the camera view. It's a rather odd issue. Anyway, I'll wait a bit to see any response here then I'll check the exchange and other sites. Thanks.

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LuxXeon ( ) posted Tue, 12 February 2019 at 6:27 PM · edited Tue, 12 February 2019 at 6:27 PM

Hi, everyone. Well, I went out and did some research on this. Couldn't wait very long because I have a project that's due and I really wanted to use Eevee for it. This would have been the first time using Eevee for a serious project. First, I know this is a beta release software and as such it's highly recommended NOT to use Blender 2.8 for production. So I have nothing to complain about here, and for sure I'm not complaining. I just wanted to let others know what I've found so you could avoid such circumstance yourself until the issues are fixed.

Ok, this issue does indeed appear to be a bug in 2.8 Eevee. Just searching for a little while on BlenderArtists turned up at least one thread mentioning this same exact problem I was experiencing. Here is a link to that thread (hope it's ok to link to other forums for educational purposes). Can't Move Camera In Blender 2.8

This is exactly what I'm facing here. The problem seems to ONLY impact the camera view while in Eevee rendered viewport mode. If you go into Shaded mode or wireframe, you should be able to bypass the issue and create keyframes normally. So it's not that big of a problem. However, I also found more issues that may not be quite as easily resolved. Eevee seems to have a random issue with render artifacts appearing only in a rendered animation, not the viewport rendered preview. These artifacts are impossible to get rid of, and I haven't found anyone with an answer to why it could be happening. Must be another bug in the beta. Here's one report of this issue I found on Stack Exchange. White spots in Eevee renders. Unfortunately, I tried to post a response to this guy, just to confirm that he's not the only one with this issue, but because it wasn't considered an "answer" to the question, they removed my response from Stack Exchange. I guess I could understand that, but sometimes it's helpful to know it's not just you having a problem. It can be a confirmation that it's not just your hardware or software that is the problem, but rather an actual bug in the application itself.

Anyway, to anyone out there who have been early adopters of 2.8, just keep in mind that any production work you do on this software is at your own risk until an official release is offered. Unfortunately, I will have to go back to using 3dsmax with Marmoset Toolbox 3 for some of my production work until more bugs are worked out. I'm still very excited about Eevee in Blender though and look forward to playing around with it more.

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Lobo3433 ( ) posted Tue, 12 February 2019 at 9:02 PM
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Hi LuxXeon Did you check out the reported bug DB on the developers site it might be something that has been or not been reported https://developer.blender.org/maniphest/project/2/type/Bug/ maybe it might help as it is searchable I know I heard about a bug in an animation tutorial I was watching earlier today about making sure keyframe animation in user pref is set to liner to get the right effect in a loop don't know if it is similar to the issue you are having but will add a link to the tutorial it is a short one and the creator mentions an issue at about 6 minutes 20 seconds into the tutorial https://www.youtube.com/watch?v=OutQnoq3dG8


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LuxXeon ( ) posted Tue, 12 February 2019 at 10:05 PM · edited Tue, 12 February 2019 at 10:06 PM

Thanks, Lobo. I appreciate the response. I haven't checked out the DB yet, although I suspect most of these issues will have been reported by now. That's going to be my next step since there's really no doubt in my mind at this point that these are indeed bugs (to be expected in beta anyway). Again, I can't stress enough that this is in no way a complaint about the software on my part, just a warning to others who might not heed the caution of a beta release being used in production. There's a reason they don't want you to use it for anything serious yet.

I've seen Ducky's tutorials before. I love how he is using Eevee for motion graphics and abstract work. That's right up my alley so to speak. Yeah, there really wasn't anything in there that reflects my issues so far, but it's still a good video. One thing I might recommend contrary to what he suggests in his tutorial is to always try to render out your video as an image sequence rather than a compressed video codec. As long as you have the hard drive space and access to a standard video editing software for post-production, rendering out to something like uncompressed PNG sequence with alpha channel will give you much greater flexibility over the quality of the video in the end. Thanks again, Lobo.

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Lobo3433 ( ) posted Wed, 13 February 2019 at 9:50 AM
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Hi LuxXeon Yes I have heard about the rendering out to image sequence in another tutorial recently for another software package and they suggested Premiere but did not mention any other suitable alternative to Adobe products and animation is not high on my learning curve yet but would like to experiment trying maybe simple animations like the one by Ducky's it was almost relaxing to just watch the end result

P.S. Nice to see you pop in

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LuxXeon ( ) posted Wed, 13 February 2019 at 11:00 AM · edited Wed, 13 February 2019 at 11:01 AM

Don't forget that Blender itself can be used for the Video editing process, and it can import image sequence files. My only complaint about the VSE is that it does not have a dedicated developer working on it, so it has not seen the same kind of progress that other areas of Blender have benefitted from. It's still very unintuitive and lacking in many regards as a non-linear editor goes. It's kind of a shame really, since the foundation is there to make it either a really great node-based editing system like DaVince Resolve, or even a very powerful and capable layers based editor like Premiere. It just needs some attention by the dev team. We have to be careful though, if the software gets bloated, then that will not be a good thing for the 3d side of things. So one good alternative is an open source software called OpenShot. It's free, of course, and quite powerful for a free software with features similar to Magix Vegas or Premiere. ** Openshot.org website**

Another good editor is DaVince Resolve. Resolve itself is offered free, and it comes with an industry standard color grading system used by large studios as well as a very good editor. This software is widely considered one of the best in the industry. Steeper learning curve than Open Shot, but much closer to Premiere in the professional end of things.

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Lobo3433 ( ) posted Wed, 13 February 2019 at 4:29 PM · edited Wed, 13 February 2019 at 4:35 PM
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Thanks for the info I know currently not ready or on level for super pro software I thought of looking at Resolve but did not think it was still free and will look at Openshot I also just upgraded my Lightwave lic to the current version deal was to good to pass up and it does image sequencing as well still learning it but it is another option in my tool belt

Again Thanks

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LuxXeon ( ) posted Wed, 13 February 2019 at 8:20 PM

The basic Resolve software is still free, but they have a studio version which isn't.The only difference is that the studio version is intended for multi-user collaboration and pipeline management. The free version is basically for individual users. I'd recommend checking out the Openshot for sure. It's really simple to use and has an impressive feature set for a free package. Then later on you could perhaps move up to Davinci or invest in something like Premiere.

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davidstoolie ( ) posted Thu, 14 February 2019 at 3:55 PM

I'm still using 2.79 because from what I've seen so far, they changed so much stuff I'm afraid I'll be lost again. I've spent years trying to remember all the hotkeys and stuff in Blender and now I'll have to start almost from scratch again. I don't even think that eevee will work on my system anyway, because i have a very old graphics card. I have to use CPu rendering with cycles.


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