rotoglup

A look into threejs raycaster

I've been looking at the current master source code, not a specific version : github commit b3ce68b4 on sept. 2019.

The source code is located in src/core/Raycaster.js, and the doc is online.

A Raycaster instance is constructed given a ray (origin point + direction vector) and a range on this ray (near, far distances), and offers the following API :

• intersectObject( object, recursive, optionalTarget ) : Array

rotoglup

A look into threejs editor

My notes while reading the source code from threejs Editor app, as I've been curious about :

• the editor architecture
• the undo/redo system
• the camera control behaviour & code
• the object transform gizmos behaviours & code

rotoglup

/*
* rtgu_ktx.h - Version -1 WIP untested

* No endianness swap support

    int ktx_load(ktx_image* i, ktx__context* k);

*/

// TODO(nico) public typedefs

rotoglup

/* stbi-1.33 - public domain JPEG/PNG reader - http://nothings.org/stb_image.c
   when you control the images you're loading
                                     no warranty implied; use at your own risk

   NOTE this is a modified version : removed 'uint' typedef as it conflicted with <sys/types.h> on Android NDK r7b
          and was not of much use anyway
          https://gist.github.com/2774576

   QUICK NOTES:
      Primarily of interest to game developers and other people who can

rotoglup

#!/usr/bin/env python
#
#  https://gist.github.com/2470162
#
#  Copyright (C) 2006  Martin Blais <blais at furius dot ca>
#  2008-02: Improvements by "Giovanni Bajo" <rasky at develer dot com>
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or

rotoglup

#!/usr/bin/env python
# -*-mode: python; coding: utf-8 -*-
#
# svn-import - Import a new release, such as a vendor drop.
#
# The "Vendor branches" chapter of "Version Control with Subversion"
# describes how to do a new vendor drop with:
#
# >The goal here is to make our current directory contain only the
# >libcomplex 1.1 code, and to ensure that all that code is under version

rotoglup

import contextlib
import time

@contextlib.contextmanager
def time_print(prefix):
  t0 = time.time()
  yield
  t1 = time.time()
  print "'%s' time: %fmsec" % (prefix, (t1-t0)*1000)