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Question by Roni92 · Jan 12, 2014 at 10:21 PM · texturecar

I want to make my car's texture muddy, dynamic

I think, it would be similiar technology to how bullet holes are draw on walls. But I don't know how to do this. I mean paint texture on texture, but on point where mud's particle hitted car's body.

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avatar image getyour411 · Jan 12, 2014 at 10:23 PM 0
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I haven't done this, but I think the effect you are wanting is accomplished via Decals or Particles.

avatar image Roni92 · Jan 13, 2014 at 12:04 AM 0
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Yes I just found Dantus' decal system and it looks like it will suit the most for my issue. But performance-wise it can be problem because i'm gonna make hundreds of decals. The best way would be to just modify the texture(draw mud spot on car's texture), but I guess it would be hard and complicated, at least for me. And I know about second way, just to interpolate between clean and muddy texture, but I don't like this, I feel like this is cheating player, and always look the same :) So i'm gonna stick Dantus decal system and will see the result. Thanks for help ppl, looks like my problem is solved.

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Answer by Mikael-H · Jan 12, 2014 at 11:01 PM

You may use an approach with decals but a simple way to solve this is to have a mud texture that you interpolate with an alpha value depending on how dirty the car is.

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Answer by MajorBoss · Jan 12, 2014 at 10:28 PM

I would crate a small mud texture seperate from the clean car, then an animation in unity. Then play the various animations of mud in different places, depending on that is in the if statement.. idk full details of your game but perhaps use a collision detection function. Hope it helped! SOME ROUGH CODE:

OnCollisionEnter(mud_patch : Collision) { if(mud_patch.collider.name == "mud") { play_animation_1; } }

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avatar image MajorBoss · Jan 12, 2014 at 10:32 PM 0
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If it helped, please vote answer right!

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Answer by NutellaDaddy · Jan 12, 2014 at 10:28 PM

The texture has to be white where you dont want anything else to show up and I think you have to choose a certain import setting or shader? Thats about all I got.

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