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Hair/ grass going through solid object.

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So I have a piece of solid glass with a rain bump map on there, which is fine, and I have used hair modelling as grass. the grass is going through the glass, which is highly unrealistic. what can be done to have that the grass is pushed/leaning against a solid object?

 

the scene setup is just temporary, render the scene, and you will see grass, coming out from the glass.

new scene 1.c4d

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Hmmm. You've got a hair collider on it so that should be working as that is all you should need to do. And it kind of working for me, but it's very hard to see what's intersecting and what's not in that scene with such long and wavy hair. You could try enabling 'surface to hair' in the hair object, and then turning on forces, and setting a repulsion distance in the collider that might help...

 

CBR

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  • For now, I decided to not put the glass close the grass ( it does go through, however the grass does interact with the glass as a solid, but I can still see it come through on the render image.) I can still get a decent render, it still fits my needs . Maybe I will play around with the program more to figure it all out.

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    From what I see in the scene, you have hairs INSIDE volume of collider object, so something like "intersecting" is expectable. Place hair outside of collider object or move collider object out of reach of hairs and compare result...

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