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Abstract.A commodity-type graphics card with its graphics processing unit (GPU) is used to detect, compute and visualize the intersection of two spline surfaces, or the self-intersection of a single spline surface. The parallelism of the GPU facilitates fast and efficient subdivision and bounding box testing of smaller spline patches and their corresponding normal subpatches. This subdivision and testing is iterated until a prescribed level of accuracy is reached, after which results are returned to the main computer. We observe speedups up to 17 times relative to a contemporary 64 bit CPU.

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Abstract-We present a software framework that facilitates the development of OpenGL applications utilizing the limited GPU capacities of a portable client in combination with the high-end rendering hardware on a server. The resulting webapplication uses standard technologies and can be run on a wide variety of devices, such as smart phones, tablets and laptops. The framework is designed so that it is simple to make an existing OpenGL application into a web-application, gradually adding client-side rendering. Furthermore, it provides automatic network scaling to provide interactivity even on poor connections.

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