picture notes

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roman with torus

you can see a medium complex scene, which shows a circular roman building. a number of columns are equidistant located in circular scheme. always two of them are connected at the top by an arc.

the camera, which was used to render the second image, is a torus, which is slightly rotated. it therefore slips through two columns in the left part of the image and runs over the whole structure towards the right region of the image. the scene is projected normally onto the torus.

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soft with cylinder2

this scene, which was original thought to demonstrate the smooth shadows facility of the ray tracer pov, is not very complex.

the camera is represented by a cylinder, which runs through the `o' of the rendered letters. since additionally the parameterization of this cylinder is not straight forward, the rays, which represent the projection, are first bend towards the letters, get through the `o' already, but then are bend back again to `see' the `o' twice. that is the reason, why both the above and the middle thing IS the `o'.

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