I updated my solar system renders. They now use perspective projection, and are uploaded to Wikipedia in WebP format instead of GIF. MediaWiki and some Web browsers aren’t fully compatible with the WebP format yet, however.
I added a planetary background and made some minor tweaks to my colony ship model/scene. I think I got lucky because it looks okay.
I have been busy creating illustrations for Wikipedia. They can be seen on my user page at Wikimedia Commons. Most of them involve the spherical or elliptical coordinate systems somehow.
I also created a series of sectional drawings comparing the internal geometries of the various “Color Spheres” of (from left to right) Johannes Itten, Albert H. Munsell, and Philipp Otto Runge; as well as a fourth sphere created for comparison based on the spherical coordinate system. It is amazing how many ways there are to draw a sphere!
And I updated a couple of existing images that show how the color-making attribute saturation can be determined from the chroma and value parameters of the Munsell Color System. (Though this definition of saturation is a bit different than the one used in the HSL color space I am accustomed to.)
Lastly, I finished an old scene featuring my interpretation of Larry Niven’s Ringworld. It is a giant ring encircling a far away sun, with oceans, continents and Earth-like weather embedded into it. Here’s the latest render:
The source code for these images can be found in my new GitHub repository which I just created for this purpose.
I decided to open an Microsoft Azure account, and use the $200 in free points for new members to render a better version of my colony ship panoramic scene [edit: click here for an external view]. I was still unable to add atmospheric media and radiosity inside the station habitat. They simply take too long to render, even with dual 8-core CPUs and 32GiB of RAM. If I could afford several virtual machines linked together to form a render farm, maybe it would be feasible to enable them. But that would cost a lot more than the points I have available, I think.
Google Cloud has a similar offer for new customers, but limit you to a single CPU with 4 cores and 8 threads until you “upgrade” your subscription. So I did not find it very useful.
With lots of help from Christoph Lipka at the POV-Ray newsgroup, I created four more images for Wikipedia having to do with color spaces. They show the sRGB color gamut projected within the bounds of the CIELAB and CIELUV color spaces. Both the rectangular and cylindrical models are depicted. You can see all the renders, as well as some animations, on my Wikimedia Commons page.
In other news, I fixed my GeoGebra applets so they work again in browsers that no longer support Java, such as Google Chrome. View them here.
I’ve put a lot of work lately in my Colony Ship POV-Ray model. The latest version can be viewed at DeviantArt, here.
I’ve also updated several of my illustrations for Wikipedia. The switch from POV-Ray version 3.6 to version 3.7 required changes to how pigments are defined among other things.
Lastly, I updated ToEE d20 Inspector to fix some bugs related to how skill points are calculated and distributed. They should no longer be wildly inaccurate. You can find the program listed here.
I wrote a new tutorial for the LDraw wiki describing how to make stereoscopic views of LDraw models. You can find it here:
I also rendered a few of my own stereoscopic images. You can find some of them in my Flickr album.
These images can be viewed using cheap stereoscopes such as this one.
I uploaded high resolution versions of some of my drawings to DeviantArt. I also made it so that when you order prints, I get some money from it. See here.