Derivatives were calculated incorrectly, basically always giving
vec3(0, 1, 0) as the normal.

Fixing this showed that the reflection ray from the surface sometimes
was below horizontal, meaning it would eventually collide with the
waves. Add more raytracing to add this kind of reflection.

Turns out raytracing metaballs is actually kind of difficult to get
right...

Lightning calculations have to be done in linear colorspace, otherewise
the result is very cringe. This commits makes the lightning calculations
happen in linearspace by enable sRGB on framebuffers and textures.
Very sigma!

Now raytrace reflection ray to see where it hits the ground.

And add some textures to the ground

* Add extra code
* more code
* FBO???
* Orthographic projection !? :blunder:

* very sine
* very wavy
* very mindful
* very demure

added clang formatter to keep cpp files consistent and formatted main

See merge request !1

Implemented a basic waterfall with meta balls on the GPU. The ball struct is handled by the cpu and uploaded to the GPU at each draw call. Normals are calculated by sampling the SDF but no shading is calculated yet.

* very sine
* very wavy
* very mindful
* very demure

* Add skybox
* Restructure the code a bit
* Add movement controls, consisisting of drag to look and WASDRF to
  move