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Physic and Liquid shapes does not work pretty well
Posted: Mon Jul 01, 2024 3:29 am
by Panha
Physic in Moho is a great tool. However, I think it needs to be improved. Look at the video here, I have a "ball layer" made up of "Liquid Shapes". Some shapes are hidden but Physics also calculate the hidden shapes and count them as shapes too.
[youtube]
https://youtu.be/kMqIxcfsVzQ[/youtube]
Re: Physic and Liquid shapes does not work pretty well
Posted: Mon Jul 01, 2024 7:05 am
by Greenlaw
The physics are working the way they're supposed to. Moho uses the curves in a layer, not the shapes, to calculate physics because that's what's physically there. Curves are the physical structure and Shapes are the 'skin' on the curves.
To make the ball bounce the way you want, use Weld Crossings and Delete Edge instead of Liquid Shapes. The result will look like this...
Hope this helps.
Tip: Sometimes I need to hold Alt to disable Smart Trimming for Delete Edge to work correctly and not alter the curves.
Re: Physic and Liquid shapes does not work pretty well
Posted: Mon Jul 01, 2024 10:31 am
by Panha
Greenlaw wrote: ↑Mon Jul 01, 2024 7:05 am
The physics are working the way they're supposed to. Moho uses the curves in a layer, not the shapes, to calculate physics because that's what's physically there. Curves are the physical structure and Shapes are the 'skin' on the curves.
To make the ball bounce the way you want, use Weld Crossings and Delete Edge instead of Liquid Shapes. The result will look like this...
Hope this helps.
Tip: Sometimes I need to hold Alt to disable Smart Trimming for Delete Edge to work correctly and not alter the curves.
Thank you very much, It works.
Re: Physic and Liquid shapes does not work pretty well
Posted: Mon Jul 01, 2024 7:23 pm
by Greenlaw
Oh, I just thought of a fun trick you can try. If you make the ball pattern an image instead of vector art, and use Image Texture to apply it, you can slide the texture to make the ball look like it's rotating on a different axis from Z. This can make the animation look more dimensional, and the image texture won't change the shape of the ball.
Or...maybe not. Since there are no bones involved, I'm not sure what Image Texture will do in this situation. It
should work, but let me know what happens if you try this. (I would try it myself, but it looks like a very busy day for me.)

Re: Physic and Liquid shapes does not work pretty well
Posted: Tue Jul 02, 2024 1:42 am
by Panha
Greenlaw wrote: ↑Mon Jul 01, 2024 7:23 pm
Oh, I just thought of a fun trick you can try. If you make the ball pattern an image instead of vector art, and use Image Texture to apply it, you can slide the texture to make the ball look like it's rotating on a different axis from Z. This can make the animation look more dimensional, and the image texture won't change the shape of the ball.
Or...maybe not. Since there are no bones involved, I'm not sure what Image Texture will do in this situation. It
should work, but let me know what happens if you try this. (I would try it myself, but it looks like a very busy day for me.)
Thank you, this is another useful tips. When free, I'll try the tip.
