My shader has some noise / waves - Unity

Technical & Engine Help Unity Help
#1

Hello,

I’m learning Unity on my own and following the amazing course of Gabriel Aguiar on Udemy.
I’m creating a projectile and did my shaders. In the shader graph, after puting the nodes to animate my trail, it has some noise and wave after puting on X “-0.1” to animate the trail.

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I don’t want to copy the exactly thing, I want just to understand why it’s not “straight” like it should be. See the image of the tutorial:

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Any help would be appreciated. If you can explain what I should correct, it would help me greatly with my understanding of Unity.

Thanks !!

#2

The example in the tutorial does not look straight to me at all tbh., plenty of uv hooks.
The example is a lot less noticeable however. Most likely due to a lower edge count across the movement.

1 Like
#3

Thank you for your answer. Do you have any idea how i can lower the edge count or get straighter lines ? Thank you !

#4

Try increasing the minimum vertex distance just ever so slightly.

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#5

Amazing, thanks a lot. But I have a second problem now, my trail is not fluid anymore, it makes angles like that:

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#6

Usually we would solve this by adding more edges along motion, but I’m not sure if that option even exists in unity.

#7

I don’t know a lot of unity. So I hope someone can help me :slight_smile:

#8

Hi! Just remove width change from trail geometry (curve must be straight). Make width change in shader or texture.

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#9

Thanks a lot for your help !!!