3D Scene editor

hgy29

Hi guys,

I have been looking for a 3D scene builder that could be used to design game levels for Gideros, but couldn't find something that fulfill my needs. Blender is far too complex to use, Asset Forge (by KenneyNL) is nice but don't allow naming/tagging objects, so I decided to have a go to writing my own scene editor, in Gideros.

It is very early days, but it is already capable of showing an asset library and position models in 3D space with ease. It lacks almost everything else: opening/saving projects, rotationg and scaling objects, adjusting properties, etc. but I think I am on the right track.

Here is a screenshot, using assets from KayKit on itch.io.

keszegh

i don't use 3d in gideros, nevertheless this is a very nice project.

MoKaLux

Very very nice UI, woaw
Is it aimed at VR or any 3d games?
I could build basic levels using Tiled but R3D failed me (character movements keep sliding, camera follow, shadows, ...). R3D is quite hard to use for a game!

EDIT: hgy29 you can turn it into a separate tool and sell it. For example I would love to see an app that shows all my 3d models at once, like a pictures viewer, and yours is apparently doing just that and more.

Gideros is AWESOME

hgy29

It is aimed at building any 3D game, ultimately it will export a scene file and associated assets in a format ready for use by Gideros, so you could just issue 'loadScene("name")' in lua to build your 3D world.
Making it physics aware is a stretch goal.

About asset library, I currently only support glb files, but I hope to handle .obj and .fbx (with fbx-conv) too

keszegh

actually a similar tool for 2d would be more widely used i guess, the lack of an integrated scene editor ingideros made me try out godot recently for my new 2d platformer project (and while i like gideros/lua much more, the scene editor is admittedly quite a time-saver when adjusting scenes). there are good separate 2d scene editors that i could use with gideros but setting up collision shapes etc. seemed to be less natural compared to doing it in an integrated editor.

hgy29

I am fine with Tiled for my 2D needs with Gideros, so I don't feel the need to write my own tool for 2D, but I will release my editor and UI library publicly in Gideros repository, if anyone wants to build more tools for Gideros.

MoKaLux

Yep, Tiled works great for me too for 2d. It will be very interesting to see your 3d editor used in Gideros

hgy29

Added file load/save, property editing, rotating and deleting objects:

hgy29

Added scaling support, and export button to output all assets files for use within a Gideros project. Also wrote the loader code for Gideros projects, here is a little experiment with an exported scene:

hgy29

Added basic physics support (setting up collision shapes), and asset collection management.

hgy29

Demo with physic/collision engine on:

keszegh

very good. you should put some royalty free music into these videos btw.

hgy29

Indeed, that would make them feel better while watching

MoKaLux

Awesome hgy29, r3d?

hgy29

Yes r3d, I am getting used about how it works

MoKaLux

just curious, is that why you implemented quarternions

hgy29

Yes, but they are also used in various 3D formats, so it is good Gideros can handle them

pie

Great job as usual @hgy29!
If this could handle a smart support for voxels it might be super cool: I don't know anything about 3d, but building 3d voxel models is super easy with magicavoxel (and it is open source too).
https://ephtracy.github.io/

hgy29

@pie, I've had a look at .vox file format, and I think I could import them in Gideros

hgy29

@pie:

MoKaLux

pie said:

Great job as usual @hgy29! ... I don't know anything about 3d, but building 3d voxel models is super easy with magicavoxel.

please note: .vox models are very unoptimized (at least in magicavoxel), meaning they have lots of unnecessary vertex, vertex which share the same coordinate, ... . This wouldn't happen in normal 3d modelling (the castle in the screenshot is a very good example of this ).

That's why I think it is not widely supported, but it is good to have it in Gideros

hgy29

Well they don’t have any vertex, at least in gideros, I used instancing of a single cube. I can add back face culling and that should do

hgy29

I changed my mind and implemented a inner face culling system for voxels instead. With the castle demo, this removes 12072 faces out of 15768...

pie

Super!!

Thank you @hgy29 I am clapping hands now but there is no emoji for that

hgy29 said:

I changed my mind and implemented a inner face culling system for voxels instead. With the castle demo, this removes 12072 faces out of 15768...

Does this mean that an obj and the same obj made with voxels are almost the same weight to handle for gideros?

hgy29

pie said:

Does this mean that an obj and the same obj made with voxels are almost the same weight to handle for gideros?

Yes, almost: exactly the same weight CPU wise, same number of pixels drawn on the GPU, but generally more vertices to handle, which isn't a big issue since vertex shaders don't count that much in GPU processing compared to pixel shaders.

hgy29

Latest news about my scene builder:
- added support for .vox files
- added support for fbx files on windows (needs the fbxconv-win32.exe)
- added support for textures files
- exported assets are now compressed

Next thing on my list: supporting either unity or ue assets files

MoKaLux

hgy29 you are on steroids

hgy29

Added basic support of unitypackage files
Below is a screenshot of a assets from Synty Studio intially in unity package format:

vitalitymobile

Incredible! You are superhero @hgy29