By Yoshihisa Shinagawa, Tosiyasu L. Kunii (auth.), Prof. Dr. Tosiyasu L. Kunii (eds.)
In order to seize the fundamental positive factors of special effects, primary tools, ideas, and strategies were built-in into generalized types via a strategy referred to as modeling. This quantity outlines the development made in desktop photo modeling and provides formerly unpublished effects and surveys with a view to support readers higher comprehend the options and functions of this attention-grabbing subject.
Read or Download Modeling in Computer Graphics: Proceedings of the IFIP WG 5.10 Working Conference Tokyo, Japan, April 8–12, 1991 PDF
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Additional resources for Modeling in Computer Graphics: Proceedings of the IFIP WG 5.10 Working Conference Tokyo, Japan, April 8–12, 1991
Random generation without control. This means that we do not know how the generator works. The result is that we do not know anything about the objects. - random generation with control. This means that we know how the random generator works. In general, distribution laws are used, so that objects properties are known. This technique is so simple, that in a first step people may wish to use it. However, there remain many difficulties: - is it sure that every property can be expressed through random values?
N i! i! I n 1_ •••. • __ •____ •••••••••••••••••• ; :_ _ _ _ _ ___ __ ___ J Pict. 12 - some views of the same object In order to provide such a facility, we have developped in the PastoFormes project the notion of good viewpojnt (Colin 88, Colin 90). It is a restriction of the notion of : there could exist an infinity of 'best viewpoints', or we could need to explore an infinity of viewpoints before finding one which could be the best one. 32 To compute a good viewpoint, we restrict the number of candidates by considering limited regions: - observation directions: we choose only to try a few potential observation directions, depending on the type of observed objects.
12: Example of multiple collisions: restitution equal to 1 Fig. 13: Example of multiple collisions: restitution equal to 0 5 From animation to scientific simulation In previous sections, the use of dynamics for animation was pretiented. Ati a general Illechanical formalism is used, the utility of our animation system for scientific simulation has been evaluated 50 D~ front back v~ew VleY Fig. 14: Model of a van 800 ~--'-;:::==r=::=:I===r--=! 700 600 500 400 300 200 100 Oc==c==c==c~c=~~ o 50 100 150 200 250 300 Fig.
Modeling in Computer Graphics: Proceedings of the IFIP WG 5.10 Working Conference Tokyo, Japan, April 8–12, 1991 by Yoshihisa Shinagawa, Tosiyasu L. Kunii (auth.), Prof. Dr. Tosiyasu L. Kunii (eds.)