Feature Request Shader Graph for custom Terrain Shader ?

Hey everyone,

I hope that I picked the right thread here and that my question is not redundant.
My question is weather it is possible to build custom Terrain shaders that work with unitys Terrain system using the Shader Graph Tool. I searched around the internet for a while now and couldnt really find positive answers for this.
I would like to implement some height based blending and triplanar mapping for my terrain AND use unitys terrain system.
If it is not possible with Shader Graph, why is it not ? What are the things to concider with terrain shaders ?

Thanks in andvance

Lucas

 

i think you can use shader graph to generate terrain-compatiable shaders, espcially by using custom function nodes in shader graph.. you need to check up/ Explore functions used in unity's shaders libraries so you can call them in your shader function and read that data so you can blend/apply your textures in your shader graph shader..

for example this is a terrain shader in URP: https://github.com/Unity-Technologi...l/Shaders/Terrain/TerrainLitBasemapGen.shader

you need to see how unity terrain shaders work, apparently they are using splatmaps, so you need to know which functions are being called obtain splatmaps then replicate that effect in shader graph then add your own stuff as well..

 

Do we have an ETA (or a task on a road-map) for this feature?? Shader-Graph are here since end-2017 and Terrain even more...

 

I would too like this. Waaay too complicated creating terrain shaders with ShaderGraph. I just want a triplanar terrain shader, and can't get it to work :/

 

I doubt this will ever come. It's not even "Under Consideration" for Shadergraph Roadmap:
https://portal.productboard.com/unity/1-unity-graphics/tabs/7-shader-graph

The best option is to buy a high quality terrain asset and let a great developer fiddle with the SRP mess or deal yourself with the hardcoded Unity shaders.

 

boy, the URP is a mess thanks for your input though

 

Well, in Unity, many things are not achievable out of the box (terrain, water, foliage, etc.) or are very limited, not performent or not good looking. You need either to buy a lot of good asset from the store or have a very good graphic programmer on your side. That's my experience so far. Unless you are an allround talent. Nevertheless custom solutions are in most cases needed and this is not easy.

 

True. I just wish the URP were documented a bit more thoroughly, digging into the repo often feels like shooting into the dark. For anyone interested, the URP Terrain shaders are here

 

Hi i wrote a terrain shader with shader graph.


https://github.com/Gnarly-Games/CustomTerrainShader

 

Thank you for the example mate, been meaning to give this a shot and with an example i'll certainly attempt it aswell.