Gallery 2: Other Graphics
There are three galleries of images. This page is a gallery of computer generated images which are not fractal landscapes. To see fractal landscape images click IMAGES. To see photographs click PHOTOS. Some of the pictures here are available as posters on zazzle.com. See PRINTS.
This picture is a detail taken from a top-down view of a tree, rendered using my most recent raytracing program. The tree model was generated using my tree generator program (as described in the about section of this site). A trivial modification to the program enabled it to output a script file readable by my raytracing program. The model consists of somewhere in the region of 100,000 primitives (cylinders, spheres and triangles). An efficient bounding sphere hierarchy was used in conjunction with a depth-rejection method to speed up rendering. The full 2560 x 1920 image took six hours to render on my P4 1.4 GHz. Some post-processing was required to obtain the colour balance of the final image.
The Menger sponge is a 3-dimensional Iterated Function. The iteration involves taking a cube, splitting it into 27 sub-cubes, then removing the 7 axial elements and repeating for the sub-cubes. Taken to its limit, this would produce a solid with infinite surface area but zero volume. For the sponge shown here, the iteration has been performed 6 times. The material is a dark, reflective glass. One of the bonuses of having your own raytracing engine is that you can add any primitive you want - the entire sponge is a single primitive. This allows for an arbitrary iteration depth; memory usage and rendering time both scale linearly with the number of iterations. My engine could in theory perform several hundred iterations without any bother (with a primitive count well in excess of the number of atoms in the universe), but that would be showing off. I used a hierarchical FIFO block cache to speed up the intersection calculations, meaning that almost 85% of the time is spent on ray calculations (rather than actual geometry evaluation and intersection). You can get a poster of this here. The source image for this poster was 12000x9000 and took 8 days to render on an AMD 1.0 GHz.
These prints represent some of the better 2D fractal pictures that I was able to produce with my 2D fractal program some years ago. These have all been antialiased between 9:1 and 36:1 - necessary for pictures of this visual complexity. All of these are available as posters (taken from the original 4096x3072 and 8192x6144 sources) from here. In order their names are Awakening Satan, Garden of Eternal Life, Malevolent Sunset, Complexity and Living Wave.