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Proceedings of the ACM on Computer Graphics and Interactive TechniquesAbstract
We present a real-time rendering technique for photometric polygonal
lights. Our method uses a numerical integration technique based on a
triangulation to calculate noise-free diffuse shading. We include a dynamic
point in the triangulation that provides a continuous near-field
illumination resembling the shape of the light emitter and its
characteristics. We evaluate the accuracy of our approach with a diverse
selection of photometric measurement data sets in a comprehensive benchmark
framework.
Furthermore, we provide an extension for specular reflection on surfaces
with arbitrary roughness that facilitates the use of existing real-time
shading techniques.
Our technique is easy to integrate into real-time rendering systems and
extends the range of possible applications with photometric area lights.
Forschungsthemen
Forschungsgruppe
Keywords
area lights, photometric lights, real-time rendering
DOI