3D Gaussian Ray Tracing: Fast Tracing of Particle Scenes
The research paper presents a new method for rendering particle scenes using GPU ray tracing, enabling advanced lighting effects and supporting complex camera models. Experimental results demonstrate speed and accuracy for various applications.
Read original article
The research paper titled "3D Gaussian Ray Tracing: Fast Tracing of Particle Scenes" introduces a novel approach to rendering particle-based radiance fields using ray tracing instead of rasterization. By leveraging GPU ray tracing hardware and bounding volume hierarchies, the method efficiently handles semi-transparent particles, enabling advanced lighting effects like shadows and reflections. The technique also supports complex camera models and time-dependent effects, such as rolling shutter distortions. Experimental results demonstrate the speed and accuracy of the approach, showcasing applications in computer graphics and vision, including novel view synthesis and scene reconstruction for autonomous vehicles and robotics. By eliminating the need for rectification steps and supporting training with distorted camera models, the method achieves high-quality outputs compared to traditional methods like 3D Gaussian Splatting. Overall, the research highlights the benefits of ray tracing for rendering particle scenes and its potential for advancing graphics and vision applications.
Related
Mip-Splatting: Alias-Free 3D Gaussian Splatting
The paper introduces Mip-Splatting, enhancing 3D Gaussian Splatting by addressing artifacts with a 3D smoothing filter and a 2D Mip filter, achieving alias-free renderings and improved image fidelity in 3D rendering applications.
GPU-Friendly Stroke Expansion
The paper introduces a GPU-friendly technique for stroke expansion in vector graphics, optimizing GPU rendering with parallel algorithms and minimal preprocessing. It addresses efficient rendering of stroked paths, enhancing performance in vector graphics.
A quick introduction to DirectX workgraphs
Workgraphs in DirectX12, supported by NVidia and AMD, enable GPU independence from the CPU. They process data through nodes acting as shaders, enhancing graphics programming with efficient data handling and node interactions.
3D Gaussian Ray Tracing: Fast Tracing of Particle Scenes
The research paper presents a new method for rendering particle scenes using GPU ray tracing and bounding volume hierarchies. It offers efficient handling of semi-transparent particles, showcasing applications in computer graphics and vision.
WildGaussians: 3D Gaussian Splatting in the Wild
A novel method, WildGaussians, enhances 3D scene reconstruction for in-the-wild data by combining DINO features and appearance modeling with 3D Gaussian Splatting. It outperforms NeRFs and 3DGS in handling dynamic scenes.
4 commentsRender quality is high / equivalent to MipNeRF (or however it’s capitalized). PSNR is equivalent or better, and the rendered output can be denoised with, say OptiX.
Some downsides/caveats — it works best if you retrain a little, so you won’t get the best quality if you’re pulling over mipnerf trained Gaussians, it’s slower to render than a straight rasterizer, like 50% slower, and of course these splats still don’t have geometry to them, as is much discussed elsewhere.
They spent a lot of work optimizing doing this for Nvidia’s RTX series, and the raytracing task is a little different than the typical one, which is to say it’s rare in ‘normal’ raytracing that you’re adding up the colors of 100s of transmissive, semi-transparent colors/radiances to get a single pixel; usually the bulk of the color from a raytraced scene comes from a smaller number of rays. If this method becomes popular, then NVIDIA could no doubt optimize the raytracing architectures further in the future and you’d get back some of that speed.
All this to say, I hope this gets rolled into existing engines, it’s practical engineering that would add a lot of options to workflows, and pretty neat!
Related
Mip-Splatting: Alias-Free 3D Gaussian Splatting
The paper introduces Mip-Splatting, enhancing 3D Gaussian Splatting by addressing artifacts with a 3D smoothing filter and a 2D Mip filter, achieving alias-free renderings and improved image fidelity in 3D rendering applications.
GPU-Friendly Stroke Expansion
The paper introduces a GPU-friendly technique for stroke expansion in vector graphics, optimizing GPU rendering with parallel algorithms and minimal preprocessing. It addresses efficient rendering of stroked paths, enhancing performance in vector graphics.
A quick introduction to DirectX workgraphs
Workgraphs in DirectX12, supported by NVidia and AMD, enable GPU independence from the CPU. They process data through nodes acting as shaders, enhancing graphics programming with efficient data handling and node interactions.
3D Gaussian Ray Tracing: Fast Tracing of Particle Scenes
The research paper presents a new method for rendering particle scenes using GPU ray tracing and bounding volume hierarchies. It offers efficient handling of semi-transparent particles, showcasing applications in computer graphics and vision.
WildGaussians: 3D Gaussian Splatting in the Wild
A novel method, WildGaussians, enhances 3D scene reconstruction for in-the-wild data by combining DINO features and appearance modeling with 3D Gaussian Splatting. It outperforms NeRFs and 3DGS in handling dynamic scenes.