Roland's raytracing page
Roland's raytracing page |
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This page contains some scenes I’ve made with the POV-ray ray tracer.
I like creating scenes with POV-ray, since the limit of what you can make is only set by your imagination. In the POV-ray world, you can defy gravity and other physical laws if you choose so. Just look at the buckyball floating above its pedestal below.
If you would like to create pictures like this, the povray ray tracer can be downloaded from the ’net for free. Be warned though, that this is an extremely addictive and time-consuming activity.
Now if only my PC were fast enough to render 800×600 high quality pictures in real-time… ;-) (actually I’d settle for 320×240 in real-time).
Most of these scenes have been adapted for povray 3.5 or 3.6.
This was one of my first scenes. It displays a hollow glass cube on a pedestal. I like making glass objects because of the way they the light plays through them. The POV-ray source for this scene is contained in the file blok.pov.
This is a glass buckyball floating above a shiny pedestal.
I got the coordinates for the nodes from a .pdb file from the ’net. I added
the connections by hand through trial and error.
The source for this scene is contained in the zip-file bucky.zip. It is
comprised of an include file which #declare’s the structure, and a scene file
that uses it.
This is a rendering of the Philips Quality Award. It is a plastic statue that was awarded to every Philips company and subcontractor that passes the PQA standard for quality control. The department where I work used to manufacture these awards. he optical effects are caused by using translucent materials with a different refraction coefficient for different parts of the award.
This is an image of a vacuum-casting mould I once designed. To show things more clearly, part of the mould is shown in a translucent glass material.
he POV-ray source for this scene is contained in the file ch-form.pov.
This is the product cast in the mould shown above. It is rendered translucent, to show the inner structure. If you’re wondering, it is a rubber clamp for holding cables, with a metal insert.
The POV-ray source for this scene is contained in the file ch.pov.
(This scene has been designed for povray 3.5 or later.)
This is a modified version of an ISO KF vacuum coupling. The flanges are made in brass. One half has been rendered translucent, for a better look. This is done by rendering the object twice, in each case taking off a different half of the object, and rendering with a suitable texture.
Note that the thread on the flanges isn’t real thread. It’s simulated by a
lathe object.
The POV-ray source for this scene is contained in the file koppeling.pov.
(This scene has been designed for povray 3.5 or later.)
This is a rendering of the design for a new vacuum press that I’ve working on. A piece has been cut out to get a better view of the interior of the design.
A vacuum press is nothing more than a flexible membrane or film that is sealed on a flat surface and evacuated. It is typically used for pressing pieces together that are being bonded. With a decent vacuum pump and seals, one should get around 0.75 kg·m⁻² of pressure, which is quite a lot.
The POV-ray source for this scene is contained in the file perstafel.pov.
This is a exploded view rendering of the previous picture. It is essentially the same file as the previous picture, but with some different flags set in the source file, perstafel2.pov.
The flat surface contsists of two 1 mm thick stainless steel plates bonded to an MDF core with epoxy glue. This is a relatively light but stiff and vacuum-tight surface. The membrane is thermoplastic polyurethane, bonded to a steel frame. A rubber strip is bonded to the membrane to provide a seal.
This is a picture of an injection gate for resin infusion moulding, a technique for making fiber-reinforced composites. It was made with povray 3.6.1.
The gate sits on the fiber package and pierces the foil that covers the fibers. The foil is sealed on the gate by applying tacky-tape on the flange of the gate. The Serto brass M coupling is screwed into the gate, and serves to attach the resin feed hose.
Part of the gate has been made translucent by using the hollow keyword, and
using a scattering media for the interior. This does take a long time to
render, though. The soft shadows have been made with an area_light light
source.
The POV-ray source for this scene is contained in the file injectiepoort.pov.
—– Copyright © 2010, Roland Smith rsmith@xs4all.nl
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