Implementing sketch based implicit blending
Date
2017-12-15
Authors
Kolhi, Ishmeet Singh
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Abstract
Implicit models can be combined using composition operators, but they can produce
undesirable characteristics in the results(e.g. unwanted bulging and discontinuities).
Recent works in gradient-based operators have been able to address a majority of
these characteristics but a major problem still remains: the inability of an artist to
build new operators since it involves de ning and tuning a large number of parameters
requiring specialized knowledge. In this implementation, we use an automatic method
for de ning such an operator by rst capturing sketches from the user around 2D
primitives de ning the desired blending behaviour and then non rigidly registering
a generic template to these samples. The resultant surface interpolates all these
samples and hence provides us with a general template for a blending operator. The
nal operator is derived from this template and can be applied to 3D as well as 2D
shapes. I have worked towards developing a c++ based tool for this implementation
which is the goal of this project.
Description
Keywords
blending, computer graphics, modelling, Implicit models