cgltf VS SHADERed

If you want to go all the way, https://learnopengl.com/ is a favorite around here. You could build a glTF viewer from scratch starting from that tutorial and https://github.com/jkuhlmann/cgltf and eventually building towards https://google.github.io/filament/Filament.html or whatever wacky artsy direction you like.

Use https://github.com/jkuhlmann/cgltf to parse the files. https://github.com/ocornut/imgui for your UI. Maybe https://www.libsdl.org/ just to set up a window, handle mouse clicks and initialize the GL context in that window.

Use glTF and https://github.com/jkuhlmann/cgltf Or, looks like you are using C#, so https://github.com/vpenades/SharpGLTF

Do you really have to use fbx? An open format like gltf is better supported, and there are bazillions loaders(I use cgltf without any issues, which is also used by raylib, Unigine and bgfx). It's also a perfect fit for OpenGL.

I recently discovered this pattern in cgltf (https://github.com/jkuhlmann/cgltf), and I agree, it makes deployment so much nicer.

Use https://github.com/jkuhlmann/cgltf It’s the most popular loader.

It's easy to generate a BVH for a generated triangle set (like a fractal pyramid or a dense cube). But, quickly generating a high quality BVH for a loaded model requires some research. Use https://github.com/jkuhlmann/cgltf to load models.

Write a simple glTF viewer in OpenGL. This is a throw-away warm-up. So, don't fret over the code. Don't do anything complicated. Shoot for a simple, forward renderer for a simple, animated character with trivial Phong lighting, diffuse map, normal map and a basic directional shadow map. Use OpenGL ES 3.0/GL 4.3 API with no crazy features. Don't worry about performance. Use https://github.com/jkuhlmann/cgltf to load the files. KTX is a great container for textures.

If you specifically want to learn shader programming then https://shadered.org/ is a lot more practical than Shadertoy.

I recreated this shader in SHADERed, and if you're interested, you can view its implementation and experiment with your own parameter values and textures. The project can be downloaded here.

There's http://shadered.org/ but it's abandoned now.

That’s why I recommend https://shadered.org/ instead for people who want to learn to use shaders in common contexts.

https://github.com/dfranx/SHADERed (useful tool for debugging shader code, has a bit more functionality than doing it in Godot directly)

https://shadered.org/ spent much time on basic editor features like Intellisense and now it seems to be dead. The time would have been better spent fixing/improving the core features like the awesome debugger. Only very late they added a (basic) VSCode integration.

Hi corysama, thankx for the comment, there is some truth to that yes for sure. As in, in games you writes more vertex / pixel or "surface" shader and then geom, compute. But I have to somehow disagree in terms of lighting. Sure this is raymarching so geometry is procedurally made in the shader, whereas in game shader it is passed with polygonal 3d model. But the lighting / colour shading calculation are the same as with polygonal geometry (ndotL for diffuse pow(max(reflect(dot(-ld,no)... for specular, calculating normals on fly in shader, etc...) so in that respect it will help for game dev style of shaders. Also I would argue that a lot of animation technique and vfx technique in raymarching shaders are similar / useful / reusable with polygonal geometry, like yanimation based on clamping sin and doing easing etc. Therefore doing raymarching shaders is good for becoming vfx artist / technical artist I guess. You are right though to point out the difference, that's clear. Good shout about shadered.org as well. Cheers!

BTW: https://shadered.org/

Hi, is there a plugin that supports using SHADERed IDE to write unity shaders? It has a lot of functionalities than a standard editors and I it can save a ton of time for me. Have already searched the google but have not found anything.