curve shape become straight line during playback

[seanmomo1]

When I click Play, the curve lines become like this. And if I pause the playback, it turns back to normal. The same happens in the animation preview.

I am using the demo version, how can I fix this? Thank you.

[slowtiger]

As you correctly observed, this is only in Preview. The rendered video will show perfectly curved lines. Moho does this to improve playback speed by reducing CPU load.

[seanmomo1]

As you correctly observed, this is only in Preview. The rendered video will show perfectly curved lines. Moho does this to improve playback speed by reducing CPU load.

Thank you!

[Greenlaw]

Yeah, it's just a way Moho optimizes playback performance when it needs to...final render is not affected.

I'm not sure where the threshold is but I'm guessing it has to do with the the speed of your CPU and the amount of RAM available to your GPU. For example, I've seen this 'down-rezzing' effect before but I'm not seeing it right now with the demo scene you were looking at probably because I'm using a fairly beefy computer at the moment.

In any case, this is nothing to worry about. If you need to see a moving preview that's closer to final without actually rendering final, try Preview Animation. Tip: Select View>Reset or press Home before choosing the Preview Animation command. This makes Moho reframe the display so Preview Animation renders what the camera sees. Otherwise, Preview Render will render the current display view, which may not be what you want if the view is zoomed in and offset.

BTW, hitting play is okay for quick checks but you should use Preview animation for crucial checks. For example, I use Preview Animation when I need to check the quality of lip sync animation. This can be much faster than submitting a final quality render.

[slowtiger]

I even see this when I move the view in project view.

[Rai López]

Anyway, you always can get rid of it by unchecking Display Quality's "GPU Acceleration" checkbox, at the cost of some playback speed of course (although how much will depend on each file and system).

[seanmomo1]

Thanks for the input, gentlemen. Indeed my computer does not have a dedicated gpu and by unchecking Gpu acceleration, the problem is solved!

[Rai López]

You're welcome! As far as I know, "GPU Acceleration" could still help even if your computer doesn't count with a dedicated GPU (otherwise you wouldn't see the resulting vectors triangulation after all) but, as I said, depending on several factors the difference could worth or not... Remember you can easily test such difference by pressing play and checking/unchecking the option with an eye at the bottom-right corner of the window. As a final tip, it can be useful to have this option in mind when getting unexpected layer masking results in viewport too. Greetings.

[Greenlaw]

Here at work I'm not seeing the down-rezzing effect with GPU Acceleration on or off with that project, but it probably has to do with the capability of the graphics card and the complexity of the project. I think I start to see the down-rezzing effect here when a project gets heavy enough with many layers, high-res images, and/or multiple rigs with complex deformations. Depending on the hardware, mileage may vary.

FWIW, I normally keep GPU Acceleration disabled because this allows certain masking configurations to display more accurately. I only enable it when I really need to see a specific feature in GL and then I usually switch it back off when I'm done.