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Tips on working with heightfields
· Because the HF is such a flexible object, there are various more or less complex ways to use it. During the following sections we will take a closer look at some of the possibilities, which are beyond the creation of »fictional mountains«. Real landscapes and 3D-outlines · Ever thought of using real photographs as a HF- image? If not, then check out the following picture ... 
· How is such a shape made? This is quite simple: A - get a satellite-photo from CD-ROM or from the Internet. B - convert it into a TGA- or a GIF-file. |
C - adjust the colors of the image, so that you get smooth height- transitions. That's all! In POVLAB you can later scale and transform the HF until it fits.
· Another nice effect, that can easily be done with HFs are »reliefs«. To get a glimpse of how this can look like, take a look at the picture below. 
· As you can see, there is (almost) nothing, you can't do with a heightfield. On the next page, we will do some exercises, concerning the topic »Heightfields in CSG-groups«. · During these exercises, we will visit our temple from chapter A again, and create some gimmicks like a broken column and some engraved inscriptions. |
| Chapter B/Page 4 | 
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Mail to webmaster:
support@povlab.org This page was last modified on: 1996-07-22 |
Mail to the author of the POVLAB-Tutorial:
lepschi@source.co.at |