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)

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

#!/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

/* 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

/*
* 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

rotoglup

Once more, I'm struggling to wrap my head around the threejs API, here are my notes.

> **IMPORTANT** base on threejs `r114` (march 2020)

API topics covered :

* Scene and Object3D, hierarchy, transforms
* Maths, linear algebra
* DirectionalLight, as I'm currently trying to understand how to attach one of them to a Camera...

rotoglup

Based on my looking at ThreeJS r115dev source code, while trying to figure out how to customize the lighting by writing my own shader.

Materials

ThreeJS has the following Material classes :

• MeshBasicMaterial, not affected by lights
• MeshLambertMaterial: lighting is computed at each vertex, for diffuse lighting, and interpolated in gouraud like fashion

rotoglup

Once more, I'm struggling to wrap my head around the threejs API, here are my notes.

IMPORTANT base on threejs r114 (march 2020)

API topics covered :

• Scene and Object3D, hierarchy, transforms
• Maths, linear algebra
• DirectionalLight, as I'm currently trying to understand how to attach one of them to a Camera...

rotoglup

applyMatrix on Geometry does not flip faces when needed

applyMatrix, on Geometry or BufferGeometry, does not flip faces indices when applying a matrix that flips normals (determinant < 0).

see mrdoob/three.js#17361