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This directory contains test programs and demonstration programs for
the SIPP library. The images here can be divided into two
categories: the mere test images (boring) and the demonstrations
images (impressive).
All the testprograms takes the following switches:
-p Render with PHONG shading.
-g Render with GOURAUD shading.
-f Render with FLAT shading.
-l Render a LINE image.
-s n Make the image (n X n) pixels big.
If no switches are given, the default is to render a (256 X 256) pixels
big image with PHONG shading. Note that if "-l" is used, the resulting
image will be a bitmap and have ".pbm" as extension instead of ".ppm".
Test image Created by Explanation
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torus.ppm torustest A plain violet torus
cone.ppm conetest One ordinary cone, one truncated
and one cylinder.
ellipsoid.ppm ellipsoid A violet course ellipsoid.
Note how the surface of the
ellipsoid appears smooth in
spite of the low number of
polygons in it (PHONG mode).
prism.ppm prismtest Three orange prisms of various form.
strauss.ppm strausstest Demo of the strauss_shader(). Four
spheres with the same color but
different smoothness and metalness.
wood.ppm woodtest Demo of the wood shader.
Demo image Created by Explanation
---------------------------------------------------
chain.ppm chain A 3-D chain of torii.
teapot.ppm teapot The standard classic Newell
teapot. This image demonstrates
shadows and transparency mapping.
structure.ppm structure A geometric structure,
demonstrating "eroded"
appearance of a surface
planet.ppm planettest A planet with fractal coasts
and clouds.
isy90.ppm isy90 The cover of the 1990
Activity Report at the Dept.
of EE at Linkoping University.
Demonstrates simulated marble and
granite texture.
scroll.ppm scroll Uses a free form deformation to
twist a "paper" in the ends. Also
demonstrates simple texture mapping
of a bitmap onto a surface.
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