► Terrain to Mesh ◄

When using the TTM in 2021.2.7f1 + latest URP (12.1.6), the exported terrain mesh remains black. Any idea?

 

Unity 2021.2 is not supported yet. It is quite new "tech release", with many experimental features and API changes, and because of it, currently it is very unstable and full of bugs. I have to wait for several patch releases for it to become more stable and developer friendly.



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Hello, Does this Shader supports mobile Running on OpenGL ES 2.0

 

If terrain uses less than 5 paint textures, then yes.



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"Note, TTM does not generate mesh with holes.
Holes are supported as Alpha Cutout effect using shaders – the same way as it is done by Unity terrain system."

I think this totally breaks my idea. I am an idiot. LOL

Will rethink that last part.

 

Hi! Iam considering purchasing this asset for Unity 2021.1.7 using URP? Will this asset work with that version ?

Sorry if its a dumb question, but havent been able to locate a list of compatible Unity Versions

 

Asset supports only the latest Unity versions. In the case of 2021.1.x - it is Unity 2021.1.28.
It may work with previous versions too, but I can not guarantee it, or provide support for them.



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Hello,

I've just purchased the plugin and I can say that is awesome!
I have a small issue with it on Android. Using URP.

I have two old phones that I test on: Lenovo P70 and Sony Xperia Z3 Compact.
I converted simple Unity terrain to a mesh terrain with 2500 vertices of splatmap material type. No grass, no trees. No holesmap.
I tested on both phones:
- the Lenovo works fine with expected 30 FPS.
- the Sony keeps rendering using the fallback shader.

I can't make the Sony render the splatmap properly. The terrain has 3 layers. I've manually removed the normal maps from the exported material. The texture usage info shows: "Material uses 4 terrain textures (3 textures + splatmap)". So according to the documentation, I should be good (below 6 textures). I've tried with png and tga format.

I've tried using 2D Texture Arrays with "ETC2_RGBA8" format (I think that's the right one for Android, I have no idea?). In the editor looks ugly as hell. On the Sony - fallback again.

I expected Lenovo to have issues as a cheaper crappier phone, but no.
I'm sure I'm seeing the fallback because I drew red lines on it.
I recompiled the shaders as instructed in the documentation.

Any ideas what I could be doing wrong or easy way to fix this? I don't care that much about these phones, but still, it will be good if it worked.

Unity 2020.3.25f1, URP 10.7.0

 

Are you using lit shader? Beside those paint textures (in your case 4), lit shaders additional need textures for shadows, lightmaps, etc. As I can not test shader exactly on Sony Xperia Z3, I can make assumption that it can't sample so much textures. Too old. Try baking Basemap texture and let Sony render it in the fallback shader.



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I use the default terrain lit shader, did not change it. I tried reducing the terrain layers to two (so splatmap materail can be used for the mesh). It still didn't work Basemap texture works but that's the same as the fallback.
I guess fallback it is. Thanks for the quick response.

Works great on my modern Samsung S10e

 

Hi, does this work with Vegetation Studio pro ?
Edit: found on their website that it supports Mesh Terrains, so assuming it would be good to go!

 

Hello, me again.

I'm trying to export my terrain with the grass I've placed. It uses grayscale image that I colorize with the dry and health color. Here is how it looks:


Sadly, when I export the terrain with grass from the editor window, the color doesn't stick - the grass is white, affected by scene lighting. Here is how it looks:


Exported grass is with 2 sides, no shadows, using the default shader "Amazing Assets/Terrain To Mesh/Shaders/Grass/Grass.shadergraph", i.e. nothing special. In the documentation it says that the plugin exports the dry and health color in the mesh vertex color in the RGB channels. In the shader I see that it takes the vertex color and plugs it in the base color, so grass should have color? When I select the grass mesh (individual quads), they don't seem to have vertex color in the preview, as everything is white:


So, is this a bug or I don't get how it should work?

And another small issue: check again the screenshot with exported grass. Some pieces of grass are bright white, while others are dark gray. After some debugging I realized that this happens because of the quad normals pointing away from the front face. The front faces of the quads become bright lit, while quad backs remain much darker, which looks unnatural. So it would be nice if the exported normals point up (for example), to eliminate this issue, or fix the shader to replace the normals with up.

Still using Unity 2020.3.25f1, URP 10.7.0.
Thanks

 

Exported grass needs to use Combine option to have vertex color baked.
Do included 6. Run-time (Export Trees, Grass and Details) example scene export it correctly?



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Your sample scene works correctly, although it uses colorful grass, not a grayscale texture. So it looks fine.

I did use the combine feature, but for the screenshot above I wasn't. You're right, I can see vertex colors with the combined mesh. And in the preview window of the mesh they look fine.

When I place them in a scene with neutral lighting and your grass shader, I now started noticing a very pale green color.


So color is present, just not recreated correctly. I noticed that in your grass shader you multiply the vertex color by 2 which would result in whiter colors, even capped by the Saturate node. Can you tell me why do you need that multiplier? If I set the multiplier to 1, grass color looks closer to the original.


EDIT: I now see that the grass in the sample scene looks very dark with multiplier of 1. I guess this was a fix for that case, but it broke mine I'm not sure what the correct formula should be...

 

Duplicate grass shader and modify it for your needs. You can use any "grass" shader you want.



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Is there someone who managed to export a terrain with Microsplat?
I'm looking to buy this assets but can't find any info about microsplat

 

Custom terrain shaders cannot be baked or exported. Only Unity's built-in terrain shader.



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Hello... I am currently getting an error... it seemed fine yesterday when I closed unity last time.. but today when I opened unity I got this error message "Assets\Amazing Assets\Terrain To Mesh\Example Scenes\Files\Scripts\ExportMeshAndBasemapByPositionIndex.cs(143,22): error CS0103: The name 'Utilities' does not exist in the current context" Because of this, Terrain to mesh does not appear in the windows panel.

Edit: Fixed! Since I use URP, I simply went to the installer folder and re-imported the urp installer again... It worked.

 

I have a problem with Terrain with high walls. Is like Terrain To Mesh ignores the walls and make them flat?
Cna anyone help me regain my heigh on terrain?

 

I'm currently trying get export mesh and base map to work on iOS 15. It currently only shows up white on builds on mobile, but shows up with the correct shading in editor.

Are there any specialized recommended settings or shaders I should be using for iOS mobile builds?

 

For run-time texture export always include AllTerrainTextures.shader from Terrain To Mesh \
Shaders \ All Terrain Textures folder into the build.




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Hello, I have a strange error after using TTM. The grass is stretched and looks like the picture below.
Do you know what could be causing this and how to fix it?
I am using the Forest Environment - Dynamic Nature object from NatureManufacture.

 

Do included example scenes have the same problem?
It may be related to the third party grass system or Unity 2021 (that is not supported yet).



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No. This issue only appears after I use TTM in Unity 2020.3 and then export the scene to Unity 2021.2.

Whether this problem exists in unity 2020.3 immediately after applying TTM, I don't know. Shaders of my assets do not support 2020.3.
Does TTM know how to work with non textured grass? I suspect this is the problem.

 

If terrain uses grass that is part of the TerrainData.asset, then TTM reads it and converts to a mesh.

If terrain uses some external or custom grass that is not part of the TerrainData.asset, then TTM will ignore it or convert it incorrectly (depends what is saved and how, inside TerrainData.asset).

To check if your grass is saved and is part of the TerrainData.asset, remove all external tools that were used for that grass creation and if after that grass is still rendered by terrain system, TTM must convert it.



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OK. I removed all custom shaders and ran TTM on the demoscene from the Forest Environment - Dynamic Nature. Now I am getting a very strange result.
There is grass on the stage, but it is not displayed. And if you turn on the playmode, then the scene crumbles into layers along the Y coordinate.

My TTM config

Errors

 

1. Duplicate terrain asset and remove trees from it completely. Leave only grass and detail meshes.
2. Drag and drop that new terrain asset into the TTM editor window.
3. Highlight it inside TTM editor window and from the context menu choose to export it as a package.
4. Send me that package on support e-mail (support@amazingassets.world) with asset purchase invoice.

I will check it manually. Just from screenshots it is difficult to find where is a problem.



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Trying to get the most out of as little textures as possible. I see support for diffuse alpha as smoothness? How is this applied? I've got alpha-channels on all my diffuse textures. The sliders values are applied uniformly across the layer? I don't see alpha channel has any effect.

 

Generated TTM material imitates the same shader rendering effect as the Unity's built-in terrain shader. It reads and uses same texture values.
Does texture's alpha channel (in your case) affect layer in the source terrain asset?

 

Yes and I was able to replicate it by switching to debug mode and changing smoothnessFromDiffuseAlpha from 0 to 1 on each layer. So its working now, but perhaps should've been set automatically? Not sure.​

 

Hello,
I am using this asset with Unity 2021.3 LTS and URP. I followed the instructions to remove the shader errors and this was done successfully. However, when I convert the terrain, the resulting mesh appears black in color.

The material inputs seem ok, except for the resulting color being black. Any thoughts?

 

Does the package included example terrain has the same problem?

 

Yes, I went to the Quick Start sample scene and converted the terrain and got the following.


I don't see any errors in the console.

Other, than referencing the Terrain, and adding a file suffix, I didn't make any other changes to the input dialog.



Again, the Material inputs look fine, other than the final output being black.



If it helps, my specific versions are:
Unity: 2021.3.6f1 (2021.3 LTS)
Terrain To Mesh: 2022.10 (latest version available in package manager)
URP: 12.1.7 (latest version available in package manager for 2021.3 LTS)

thanks.

 

It looks like Splatmap shader is not imported correctly. Did you recompile it as described in the Manual file?

 

I did. Since I am using 2021.3 LTS, I followed the instructions where one clicks on "Copy Shader" on the .shadergraph file and then executing "Generate Shader" on the .shader file.

I will note that when I click on "Copy Shader" there is no apparent effect. Should this be generating a new file?

I do see the following warning when I generate the shader, however it does not seem to be critical.



I also repeated these two steps for the "holes" shader.

The Material itself shows a warning that the "Material uses 5 terrain textures". Not sure if this is a problem. Also, seems odd, since the original terrain only has two layers and 4 textures.

 

Ok, I am out of the office until Thursday and will check asset using Unity 2021.3.6 after arriving and will better know what the problem may be.

 

ok, thanks.

 

Just test using Unity 2021.3.8 and no problems found. At my side everything works correctly, as expected.

However, if trying to use TTM designed for Unity 2019.4 - 2020.3 inside Unity 2021.3 then similar problems appear.
So, I can make assumption that you are using incorrect package. Solution, delete TTM from your project, clear Asset Store cache folder and using Unity 2021.3 download TTM from package manager.

 

ok, I followed your instructions and it worked. Thanks.

Maybe the issue is that despite the asset being called "Terrain To Mesh - 2021" which would seem to indicate it would work with Unity 2021, there are multiple versions under that 2021 name?

This was what my Unity Asset Store Cache Folder showed before and after deletion and re-download.






Clearly these are different packages. But even the older one was TTM-2021. Odd.

So, if one has say a Unity 2020 project and a Unity 2021 project one has to

a) Do an initial download of TTM-2021 in Unity 2020 from the package manager
b) Import TTM-2021 in Unity 2020
c) Delete from the Asset Store Cache
d) Re-download TTM-2021 in Unity 2021 from the package manager
e) Import TTM-2021 in Unity 2021

Following your instructions above, I have effectively done steps a-e.

Now, let's say you put out an update to Terrain To Mesh - 2021. If I try to update in Unity 2020, this will presumably not work? I would again have to go through Steps a-e on any update if I want to have projects with both Unity 2020 and Unity 2021?

Not sure how this is normally handled with Asset Store packages.

 

2021 in the name indicates asset's release year (before that was old one released in 2015), not Unity version.

Terrain To Mesh 2021 asset contains multiple packages for different Unity versions (from 2019.4 to 2021.3).

If package has not been downloaded yet and it is not registered in the cache folder, then when you first try to download and import it, package manager checks currently used Unity version and based on it downloads appropriate TTM package from the server, compatible with that Unity version only.
If one of the packages from the asset is already downloaded, then package manager automatically offers it to import, without checking currently used Unity version (this is a problem).
That's how package manager works, not quite acceptable, but currently it has no feature for developers to somehow indicate that asset contains multiple packages for different Unity versions.

 

Makes sense. Seems like a major package manager limitation. Anyway, I now know what to do if there has been an update to TTM 2021 and I need to deploy it to both a Unity 2020 Project and a Unity 2021 Project.

 

i cant find vacuum shader in window button in unity.

 

Check ReadMe file inside installer folder.

 

Hello, I am about to make purchase on your product, and I really want to ask you a question.

I am planning to use the mesh terrain in combine with the SensorSDK package to get some pointcloud map of the enviroment. I have checked the current terrain, it can not be scanned by the lidar due to no 'mesh renderer'. Do you think with the converted mesh file, I may apply the mesh renderer onto the mesh terrain to get the pointcloud?

Really looking forward to you reply.

 

Have not used SensorSDK and don't know how it works, but TTM generates two type of mesh files: Unity mesh (.asset format) and OBJ file (that can be used in any 3D modeling software).

 

Hello, I have bought your product, the virtual lidar did work with the mesh terrain.

I am not a skilled programmer myself, so may I ask a very amerture question:

May I use the API to write a script to control the conversion process?

Many Thanks

 

If you are asking about making any changes inside TTM editor tool, then it is not possible as all scripts are packed in dll.
However package offers run-time API, methods that are described in the Manual file (page 15) and demonstrated in the included example scenes. You can use this API for your own editor tools or inside builds.

 

Hello, bought your asset recently

Can you please make the Splatmap shaders compatible for SRP Batcher



https://docs.unity3d.com/Manual/SRPBatcher.html

Trying to use these terrain meshes in ECS/DOTS and take full advantage of Hybrid renderer SRP batching. As of now - the terrain simply does not render at all n ECS/DOTS...

Would be highly appreciated - thanks!

 

I am currently my own terrain shader, it is compatible with basic Unity terrain shader. Can i use it on converted terrain mesh?

Also what about holes, i need mesh collision data to also account holes in terrain.

 

As you are using custom shader, I can't know if it will be compatible with generated mesh. Mostly no, as it is a terrain shader and not a mesh. You have to manually modify your custom shader to make it compatible with mesh rendering.

TTM doesn't cut holes in a mesh. Holes are rendered using Alpha Cutout shader.