The Ampere GPUs that came out, area beasts. We have been able to get some good performance out of the GPUs. We have done things to more closely map to and leverage the fact that the GPU can run with thousands of threads in parallel. We have a really sophisticated algorithm that is super fast on the GPU. One in particular is the rendering of caustics. For KeyShot 10, we optimized some of those algorithms. For some of the more advanced algorithms, we just leveraged brute force to do that. In our first release, we had to make certain shortcuts that let us just do brute force on a GPU. In the meantime NVIDIA released improvements in OptiX 7.2, and the software keeps improving. We re-implemented everything for KeyShot 9. In 2018 we started out with the OptiX 6 library, and that presented some challenges for us, but NVIDIA then released OptiX 7, which was a better fit for our needs. Can you describe some of the features and benefits available in the new release? The latest version of KeyShot shows additional improvements related to GPU acceleration. We were up and running in less than a year. We had been preparing internally the algorithms that could map to the GPU. NVIDIA released some programming models to support it, and we were ready for it. In 2018, the graphics cards came out with 8GB of memory and performance was fantastic. It was not able to compete with the CPU at the time. We had been dipping our toes in to see what we could get with the GPU, and we had found that it did not give us enough benefits before. They said yes, it was really that good, and it gave me confidence. I spoke to a lot of people from NVIDIA at that conference and asked if this was really possible. In 2018 I attended SIGGRAPH and in Vancouver and was invited to a keynote by Jensen Huang, CEO of NVIDIA, where he announced the company’s RTX hardware.įor the first time, you could have an output of a billion rays per second, which is a fantastic number for anyone doing ray tracing. We originally stuck with the CPU because the algorithms we had were doing really well did not map well to GPU. What were the key driving factors that led KeyShot to support GPU acceleration? We spoke with Luxion Co-founder and Chief Scientist Henrik Wann Jensen to talk about these enhancements and the value of real-time rendering for engineering organizations. With the recent release of both KeyShot 10 and the NVIDIA RXT A6000 GPU, designers have access to previously unheard of capabilities. Since then, the software’s real-time rendering performance has only become more impressive. In 2019, Luxion raised the bar on rendering when it announced its KeyShot product would support GPU-accelerated ray tracing via NVIDIA technology.
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