Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: vinbarg on 2017-11-19, 21:35:48

Title: Grass variation
Post by: vinbarg on 2017-11-19, 21:35:48

Hello corona users, any idea how to achive grass variation /color, stripes/ like on the picture. THX

Title: Re: Grass variation
Post by: romullus on 2017-11-19, 21:51:04

It depends on what scatterer you're using, but basically you need to apply lawn texture to scttering surface and blend it with scttered instances' texture.

Title: Re: Grass variation
Post by: vinbarg on 2017-11-20, 08:41:05

i want to use Corona scatter, but don t know how to  blend surface  with scttered instances' texture.

Title: Re: Grass variation
Post by: Frood on 2017-11-20, 08:44:55

Start here:

https://forum.corona-renderer.com/index.php?topic=15049.msg95698#msg95698


Good Luck

Title: Re: Grass variation
Post by: mferster on 2017-11-20, 17:22:39

I've done a similar effect with corona scatter. In reality the variation in colour is created by the angle of grass being pushed down by the lawn mower in alternating orientations. 

So with that in mind, you can replicate that by having 2 alternating instances of corona scatter with rotated transforms going in the opposite directions. It's all the same material.

Title: Re: Grass variation
Post by: romullus on 2017-11-20, 19:15:46

That's why we REALLLY need mapable transformations in CoronaScatter!

Title: Re: Grass variation
Post by: vinbarg on 2017-11-20, 20:41:59

THX guys, gona try this two methods.