Rotating to 0 when above pi would result in the board spinning back
through pi to get there. This led to jarring motion.
Also fix an issue added in b6f64815 where the board would rotate
2pi when crossing over the 0-2pi boundary.
(Cherry-pick of 4fc9b4e5ab)
so they will not be zero when viewing the board com the top/bot.
This was causing problems with BBox intersect function that was using
invDir values.
Fixes lp:1828747
https://bugs.launchpad.net/kicad/+bug/1828747
Additionally, fix an unreported bug allowing zoom level to get stuck at
MAX_ZOOM.
Fixes: lp:1625754 (3dviewer zoom not limited with Use touchpad to pan)
https://bugs.launchpad.net/kicad/+bug/1625754
+re-implement anti-aliasing, making it more acurate, not blured, better
and much faster (unsing much less lines of code)
+rewrite some function on camera and raypacket.
+small improvements on raytracing realtime, remove useless ifs
comparisons.
* Split and rewrite the preview window and canvas.
* Create a new class for handling the board information.
* Adds new render targets: openGL, legacy, and ray tracing.
* Render targets take full advantage of the new 3D plugins system and 3D cache
for a fast 3D model loading.
* Faster board loading.
* New OpenGL render is faster than the old one.
* New ray tracing render target with a post processing shader.
* Use of new 3D plugins (WRL, X3D, STEP and IGES) and 3D model caching.
* Preview of 3D model while browsing the file name.
* 3D preview of the footprint while adding / align 3D shapes.
* Render of 3D models according to attributes: Normal, Normal+Insert, Virtual.
* Pivot rotation centered in one point over the PCB board.
* Shortcuts keys improved for XYZ orientation..
* Animated camera.
Ian McInerney
jean-pierre charras
Mario Luzeiro
Simon Wells
José Ignacio Romero
Jon Neal
Cirilo Bernardo
Mario Luzeiro