Authors:
Paulo Andrade
;
Thales Sabino
and
Esteban Clua
Affiliation:
Universidade Federal Fluminense, Brazil
Keyword(s):
CUDA, Deferred Shading, Global Illumination, Hybrid Rendering, OptiXTM, Rasterization, Ray Tracing, Real Time Rendering.
Related
Ontology
Subjects/Areas/Topics:
Applications and Services
;
Computer Vision, Visualization and Computer Graphics
;
Entertainment Imaging Applications
;
Image Formation and Preprocessing
;
Image Generation Pipeline: Algorithms and Techniques
Abstract:
Hybrid rendering combines the speed of raster-based rendering with the photorealism of ray trace rendering
in order to achieve both speed and visual quality for interactive applications. Since ray tracing images is a
demanding task, a hybrid renderer must use ray tracing carefully in order to maintain an acceptable frame rate.
Fixed solutions, where only shadows or reflexive objects are ray traced not only cannot guarantee real time,
but can represent a waste of processing, if the final result minimally differs from a raster only result. In our
work, we present a method to improve hybrid rendering by analysing the scene in real time and decide what
should be ray traced, in order to provide the best visual experience within acceptable frame rates.