mhalber

This note simply gathers some info and thoughts on building Node Editor, especially in an
immediate mode setting.

Q: How does imgui render rounded rects?
Check imgui AddRectFilled
Imgui drawing api is closer to nanoVG
 - Path is kept
 - Contents are modified based on path
 

mhalber

In this stackoverflow question[1] user ltjax provides an answer on the order of applying quaternions to 
accumulate rotations. The answer makes an interesting claim that the proposed order of quaternion 
multiplications:

(1) cameraOrientation = framePitch * cameraOrientation * frameYaw

is equivalent to storing the 'Yaw' and 'Pitch' angles separately. It is an interesting observation, 
but no reasoning, or proof is given.

For the rest of this discussion we will assume lab 1-2-3 sequence[2], where we first roll the

mhalber

// background_gradients.c
// Author: Maciej Halber
// Compiled on macOS 10.12.4 with :
//          clang --std=c11 -lglfw3 -framework OpenGL background_gradients.c -o background_gradients

#include <stdio.h>
#include <stdlib.h>

#if defined(__APPLE__)
  #include <OpenGL/gl3.h>