Increased photorealism for interactive architectural walkthroughs

Rui Bastos, Kenneth Hoff, William Wynn, Anselmo Lastra
<span title="">1999</span> <i title="ACM Press"> <a target="_blank" rel="noopener" href="" style="color: black;">Proceedings of the 1999 symposium on Interactive 3D graphics - SI3D &#39;99</a> </i> &nbsp;
This paper presents a new method for interactive rendering of globally illuminated static scenes. Global illumination is decomposed into view-independent (diffuse) and view-dependent (non-diffuse) components. The two are recombined during rendering using a hybrid geometry-and image-based approach along with multi-pass blending techniques. This approach allows the preprocessing of both components and the fast rendering of globally illuminated scenes. The view-independent component uses a
more &raquo; ... nal precomputed geometry-based radiosity solution that is rendered using standard graphics hardware. The view-dependent component is decomposed into "what is reflected" (radiance with depth) and "how it is reflected" (BRDF), and precomputed and rendered using image-based approaches. Radiance is stored as images with depth, and rendered using perspective reprojection; the BRDF is decomposed into an integration of incoming radiance and a directional modulation. The radiance integration term is approximated by convolving the reflected image with precomputed kernel textures based on material properties. The directional modulation is stored as a reflectance modulation texture based on material properties and is rendered using spheremapping during a blending pass.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="">doi:10.1145/300523.300551</a> <a target="_blank" rel="external noopener" href="">dblp:conf/si3d/BastosHWL99</a> <a target="_blank" rel="external noopener" href="">fatcat:rmojqmgrlffjfczhkjcrqnaiqi</a> </span>
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