Written in C with Raylib, this experiment provides a GUI for creating a hierarchy of 3d object descriptions.
These are dynamically interpreted as SDFs and combined into an OpenGL fragment shader which displays them via raymarching. This is rendered with a hybrid approach so it's compatible with "normal" 3d rendering, such as the guides.
Original raymarching shader and SDFs are by Inigo Quilez, with some modifications.
Supported primitives are:
- box
- sphere
- ellipsoid
- cylinder
- capsule
- plane
These can be modified by smoothing, translation or rotation, and combined with other primitives by union, intersection or subtraction (which can also be smooth).
Only one "object" with a single colour is supported at the moment, and the lighting calculations are not editable by the interface.
The GUI is written with the help of raygui, and shows some custom controls:
- Expandable tree with drag and drop support
- Vector3 editor with support for editing in-place (eg
"0.5, 1, -1") and shortcuts ("X"for<1, 0, 0>) or expanding to components.
Sadly these are quite integrated with the system and are not in a position to be placed in a standalone library, although it could be done with some work.
