![]() ![]() Designing, rigging, texturing, and lighting your models will make the image or scene pop. The heart of every 3D project is the models featured in the artwork. Here, we’ll look at some major features of both Blender and Keyshot to see what each program offers. Each artist’s needs will be different, so a lot of program features need to be considered. But, which program is the best?Ī lot of things need to be considered when choosing between Blender and Keyshot. Today, Blender and Keyshot allow users to quickly and easily create impressive artwork for any medium. As a consequence, the 3990X is three times faster at rendering this scene than the RTX 6000.3D modeling, rendering, and animation have come a long way over the past few years. On the GPU the scattering media in combination with the location-dependent procedural texturing results in divergent behavior which slows the GPU quite significantly. It uses a heterogeneous scattering media modulated by a 3D procedural texture to achieve a complex foam appearance. An example is the foam head by Esben Oxholm. In addition, the CPU outperforms the GPU in scenes with highly divergent shading behavior. While it might be possible to render such complex scenes on the GPU it is easier to manage the data on the CPU and the overhead of moving data between the GPU and main memory will likely mean the CPU is the better choice even from a performance point of view. For most product scenes the GPU does deliver blazing performance, but for highly complex scenes with a lot of geometry and textures, the CPU with access to more memory becomes competitive. With the high performance obtained with the RTX architecture, one might ask if there is still a need for CPU rendering? The answer to this question depends on the workflow. Most desktop workstations support multiple GPUs and, we have found, the performance scales almost linearly with each additional GPU added. ![]() For complex scenes, the Quadro RTX 6000 with 24 GB or the Quadro RTX 8000 with 48 GB offers quite a bit of room for geometry and textures, and these cards may still use NVLink offering up to 96 GB of shared GPU memory.Īnother significant benefit of GPU rendering is the ease at which performance may be scaled by simply adding more GPUs to the workstation. However, sharing geometry over NVLink does come at a fairly significant performance hit. ![]() With two RTX 5000 cards using NVIDIA NVLink for a combined 32 GB of memory, we have been able to ray trace scenes containing 1.37 billion unique triangles. The GPU can handle pretty complex scenes though. It is possible to swap textures from CPU memory to the GPU. Very complex scenes with a lot of geometry and textures may not fit on the GPU, which leaves the CPU as the only choice. One of the challenges with GPUs is running out of memory. Once the data is uploaded and shaders are compiled, the workflow is very smooth and fast. KeyShot runs very fast using the new NVIDIA RTX cards. However, the large number of compute threads on the GPU does allow for much higher throughput and the recent addition of fast denoising algorithms has further bridged the gap between brute force GPU algorithms and more sophisticated CPU algorithms. This does mean that the GPU algorithms converge more slowly to a noise-free image than the CPU algorithms. The GPU rendering is using slightly different algorithms as GPUs perform best with uniform parallel workloads. As a result, Keyshot users will be satisfied with CPU server performance at iRender. For CPU rendering, iRender also provides CPU servers with unmatched speed for rendering Keyshot with Dual Xeon E5-2670 v2 2.50 GHZ, 20 cores, 40 threads, RAM 128 GB, Storage 256 GB and a Geforce GPU Nvidia 1050 2GB, which is totally higher than recommended system requirements. ![]() In 2018, this all changed when NVIDIA introduced the RTX architecture with dedicated ray tracing hardware. The ray tracing code at the time was running on the AMD Opteron architecture. Luxion demonstrated interactive ray tracing technology to the public in March 2006. ![]()
0 Comments
Leave a Reply. |