The Reyes image rendering architecture
SIGGRAPH '87 Proceedings of the 14th annual conference on Computer graphics and interactive techniques
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SIGGRAPH '90 Proceedings of the 17th annual conference on Computer graphics and interactive techniques
SIGGRAPH '93 Proceedings of the 20th annual conference on Computer graphics and interactive techniques
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I3D '12 Proceedings of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games
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Adaptive image space shading for motion and defocus blur
EGGH-HPG'12 Proceedings of the Fourth ACM SIGGRAPH / Eurographics conference on High-Performance Graphics
A sort-based deferred shading architecture for decoupled sampling
ACM Transactions on Graphics (TOG) - SIGGRAPH 2013 Conference Proceedings
Theory and analysis of higher-order motion blur rasterization
Proceedings of the 5th High-Performance Graphics Conference
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We modify the Reyes object-space shading approach to address two inefficiencies that result from performing shading calculations at micropolygon grid vertices prior to rasterization. Our system samples shading of surface sub-patches uniformly in the object's parametric domain, but the location of shading samples need not correspond with the location of mesh vertices. Thus we perform object-space shading that efficiently supports motion and defocus blur, but do not require micropolygons to achieve a shading rate of one sample per pixel. Second, our system resolves surface visibility prior to shading, then lazily shades 2x2 sample blocks that are known to contribute to the resulting fragments. We find that in comparison to a Reyes micropolygon rendering pipeline, decoupling geometric sampling rate from shading rate permits the use of meshes containing an order of magnitude fewer vertices with minimal loss of image quality in our test scenes. Shading on-demand after rasterization reduces shader invocations by over two times in comparison to pre-visibility object-space shading.