exporting TG4 project

Started by leopoldmaz, March 26, 2019, 11:46:34 am

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leopoldmaz

Hi all. So thanks to this great forum I was able to build a very nice open scene that suits my needs. But now I am trying to export the model so I can load it in virtual reality setting (I am trying to build a simple navigation task for my science project). I got the academic license for TG professional and I tried to export the scene as fbx and load it in fbx compatible software, but it didn't work.
Any ideas how I can export a TG world into real-time action setting?

Oshyan

I believe you also wrote an email to support, but since others might be interested in the info I'll just reply here publicly.

Terragen currently has somewhat limited export functions. It is designed as a procedural environment modeling and *rendering* application. We are working toward better export functions, but the primary focus to this point has been on use of Terragen-generated content within Terragen itself, with the import/export functions designed to augment that and allow Terragen output to be used with other "offline" render functions.

Currently what you can export easily are:

1: A spherical environment or skybox. This could be just the sky, since it is distant and doesn't need to be interacted with in most cases, or it could include terrain, if desired.
2: Terrain as a heightfield, without texturing. This can be done only for non-procedural terrains by default (i.e. a Heightfield node), but you can easily convert any procedural terrain into a heightfield by using the Shader input on a Heightfield Generate node. Note that exporting as a heightfield inherently loses any non-planar (e.g. overhanging) features of the terrain.
3: Terrain as geometry using a Micro Exporter node. This exports terrain directly from the rendering process, and so it is not optimized for use in other applications and requires some work to make it more usable. It also is best to export using a single thread to avoid tile edge issues. There is more discussion of this elsewhere on the forums and the Micro Exporter is covered in our Wiki documentation: https://planetside.co.uk/wiki/index.php?title=Micro_Exporter
4: Terrain as Vector Displacement. This is one of the most accurate ways to go, but it does require some setup and expertise, and your engine may not support the output directly.  Here's a video tutorial: https://www.youtube.com/watch?v=bTKfAeEPDhY

The FBX export you probably tried (from the File menu) is only intended to export Camera, Lights, and animation data, it does not export any geometry. Full scene export is not likely to be possible any time in the near future. Texture export may become an option in addition to the above-mentioned terrain export functions, but for now if you want textures you'd have to render a top-down orthographic view at high resolution with neutral lighting.

If you have access to Maya there's also Terraman which makes some of these things easier for getting into Maya, at least:
https://www.highend3d.com/maya/script/terraman-for-maya

All of this is discussed in various other threads here on the forums and I suggest you do some searches to get more details. For example Vector Displacement is discussed at length here:
https://planetside.co.uk/forums/index.php/topic,21311.0.html
And in several other threads.

- Oshyan

leopoldmaz

Okay. Thank you for the detailed answer. I hoped to export the TG project into unreal engine, but now i see this is not that simple/possible at all. I will try to export at least the terrain and to see how it works.

Thanks!