Author archives: Mike
Templated PyDoc-ish Tool?
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Snaking.
So I'm once again trying to fix the PyOpenGL/OpenGLContext pydoc stuff. They've been using a hacked up version of pydoc for years (with a brief excursion into epydoc with extensions) and somewhere along the way the changes to the structure of the libraries means that the output is now basically useless. The key here is ...
Single-File Tutorials, Gimmick or Valuable Constraint?
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I just finished writing the code for the 12th shader tutorial, which is basically taking the 11th tutorial, which is still a "single-file application" tutorial, and converting it to use the OpenGLContext Shader scenegraph nodes and generally look (slightly) more like a real-world rendering engine.
I like single-file tutorials, but really there's a point at ...
Shader Tutorial Cleanup
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Snaking.
Beginning work on cleaning up the introductory shader tutorials. Basically separating out the various component calculations into reusable functions and making it possible to use generic scenegraph objects for the geometry to be displayed. Working on that because it really seems that beyond a certain point there's diminishing returns in working on the shadow tutorials ...
Cleaning up Shadow Tutorial Code
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Snaking.
Grabbed some time this evening to clean up the shadow tutorial code. It's now refactored into reasonably small methods, supports N lights, uses the cache to store textures/fbos, and generally is a lot less messy. I'm currently debating what the next step in the tutorial should be. My current thinking is to use shaders to ...
Adding user-authentication to your Twisted web-site (Another HowTo for undocumented features...)
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Snaking.
Minimal example of using twisted.manhole (Since it took me so long to get it working...)
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Snaking.
HowTo: Create an SSL web-server in Twisted (Crude approach, but it works...)
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Snaking.
The Twisted web howto doesn't mention the fairly common task of creating an SSL-secured communications channel for a web server. The process of doing so is fairly simple, but it requires tracking down a few pieces of information, so I've collected them here:
First things first, to create an SSL server, you need a private ...
mDNS service to share apt caches?
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Tuxedo.
Working on the Research in Action follow-up I had a thought.
Is there a package I can install on a (Debian-based) machine which would automatically advertise to all machines on the network (via mDNS or the like) that I have (signed) repository sources and .debs available?
The idea being that an "Internet Bus" would update ...
Framebuffer Object shadows
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Snaking.
I also added a FrameBufferObject implementation to the "special effects" tutorial path for OpenGLContext. This uses the convenience wrapper for frame buffer objects which I just added to PyOpenGL. The convenience wrapper just makes the ARB and EXT variants of the entry points available via alternates and provides a checkFramebufferStatus function which implements the ARB ...
Research in Action
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Snaking.
The other event of the day yesterday was University of Toronto's Research in Action show. This is a booth-based presentation of various research, whether formal or informal, being done at the University. My interest is primarily in figuring out how to:
- Use Open Source to make it easier for researchers to make their work relevant ...
Mike C. Fletcher, the VRPlumber, is a philosopher of design turned computer programmer based in Toronto, Canada. He works primarily in the Python programming language, and maintains a large number of Open Source software packages. You can reach him at: mcfletch@vrplumber.com.