Adaptive Tessellation in Screen Space Curved Reflections Attila Szabo∗

Mirroring objects play an important role in the rendering of every-day scenes, as they aid in the recognition of ma-terials, objects and the distance relations between them. Due to their complex nature, an accurate solution gener-ally requires an expensive computation, which is mostly done using methods based on ray tracing. To reduce the workload, recent methods try to perform the computation in screen-space. However, in order to ensure accurate re-flections, the geometry of the scene needs to be sufficiently tessellated to reduce the artifacts created by the linear in-terpolation of the GPU rasterizer. This creates a vast pre-processing effort and storage-overhead for the tessellated vertices. In this paper, we present a method that performs this tessellation on the fly, reducing the error in the reflective image by inserting extra vertices where necessary. We prove the effectiveness of our approach in comparison to the state of the art and discuss limitations and ideas for possible future work