Smooth Voxel Terrain Generation In Godot

[@TokisanGames]

Oops, the keyword is "Isosurface Extraction". Join my discord for updates on my current game, Out of the Ashes: tokisan.com/discord See pics and details here: tokisan.com/out-of-the-ashes/

[@Crisisdarkness]

Wow, this looks so cool, this channel is quite impressive, thank you, I'm glad to be on this channel. Based on this project, the possibilities of creating worlds are endless, and I have been impressed that information can be extracted from real maps, by means of that black and white texture.

[@GamedevLlama]

well done! Godot needs more of these videos to let people see what's already possible!

[@johnnewton7401]

You're doing some really cool stuff on your channel! Looking forward to more. I would definitely be interested in longer form, more in-depth tutorials or guides from you if you were ever interested in producing content like that! Cheers!

[@emi_cpl]

Amazing video! keep it up :)

[@Toskyval]

Looks like the only ""limit"" of this tool is that you lose yourself in the 3D editor when you search the single area you wanna retouch with Godot 'brushes' :p Really dope btw, roguelike games in big roaming maps like Daggerfall Unity.

[@FrancoisSchnell]

Wow, very impressed, keep it up! :)

[@ZZKJ396]

Godot really needs this, potentially a much better solution that is shipped with Unity.

[@KaletheQuick]

Unity has a built in voxel engine?

[@feriante777]

Really cool! Is possible to make an underwater effect with an area and activating fog and/or other post-processing effects. Also the character can enter on a fly mode simulating the swimming..

[@TokisanGames]

Yes those are possible. I don't think Godot does volumetric fog yet, only distance/height fog so that might be challenging for the moment.

[@Toskyval]

Will be possible to use a mesh as a boolean to sculpt/subtract the voxel terrain? Like you make a tunnel shape in Blender, then use that tunnel mesh in the voxel terrain which will adapt to this mesh.

[@TokisanGames]

I've not heard anything about constructive geometry like functionality being planned. However, you can currently generate tunnels fairly simply with code using the same add/remove functions I use in these videos. In this issue we show graphics demonstrating this: github.com/Zylann/godot_voxel/issues/72

[@GamedevLlama]

Also I'm not sure if auto changing the brightness on the real height map is an option, since the proportions of the gray values already are in a decent space?

[@TokisanGames]

Yeah, if you want the real Finland I guess you should just leave it. But if you want an interesting terrain with peaks and valleys, you'll want to make use of the full tonal range as I did.

[@louiscs5943]

can you "dig" squares in your app?

[@hekkibork]

no -mans-Sky beta :D

[@KaletheQuick]

I tried to hire the guy who made MapMagic and Voxeland to port them to Godot, but he didn't get back to me. Guess this will do.

[@voxelamateur]

Great!! btw, are terrain shadows being re-rendered each frame?

[@TokisanGames]

Yes, there's nothing baked. Just one directional light. On the LOD terrain, my GTX 1060 runs at over 300 fps @ 1080p.

[@deusxyz]

Hey mate, is there a way to get the smoothed terrain but by using the original voxel data? Or did you use storage into 8 points like the original marching cubes algorithm?

[@TokisanGames]

This module gets voxel data from a heightmap, a 3D noise function, or your can provide your own code like an SDF. This is similar to the original MC implementation which shows a sphere, cylinder, and sine wave SDFs. Data from the SDF is stored in a buffer, which is where modifications are made. The mesh is generated from that buffer.

[@deusxyz]

@@TokisanGames Thank you umm... i tried to interpret this but, well, is it stored as a byte per type like voxels (solid, and air for example), or is it stored in 8 bytes (per corner of the cubes)? Because i looked at the original marching cube over the years and tried implementing but most store the data in the points like this: catlikecoding.com/unity/tutorials/marching-squares/

[@deusxyz]

​@@TokisanGames This demo inspires me a bit to make a game more realistic then simple cubes xD So far i've got basic terrain and i finally got it to work fast enough :D facebook.com/MrPenguinStudios/videos/401991750339119/

[@TokisanGames]

@@deusxyz ​ If you want more info about the implementation and how the Voxels are stored, look at the source. I linked Zylann's github repository which has all the C++ code. Look at VoxelBuffer and VoxelBlock (a chunk).

[@deusxyz]

@@TokisanGames thank you, you are a legend.

[@WittyRpedU]

how would you get a height of a voxel at a set X/Z location?

[@TokisanGames]

The global height at X, Z is just Y. If you shoot a raycast down, it will return the vector3 position of the terrain, which includes the height as Y.

[@metalim]

What happened to third video in series? 2 weeks already.

[@TokisanGames]

It's in process. Rome wasn't built in a day! 😉

[@AFXSnares]

Torilla tavataan!

[@djdols3301]

does this work with gles 2?