Browsing by Author "Wang, Lu"

Now showing items 1-9 of 9

    • Efficient Caustics Rendering via Spatial and Temporal Path Reuse 

      Xu, Xiaofeng; Wang, Lu; Wang, Beibei (The Eurographics Association and John Wiley & Sons Ltd., 2023)
      Caustics are complex optical effects caused by the light being concentrated in a small area due to reflection or refraction on surfaces with low roughness, typically under a sharp light source. Rendering caustic effects ...

    • Fast Global Illumination with Discrete Stochastic Microfacets Using a Filterable Model 

      Wang, Beibei; Wang, Lu; Holzschuch, Nicolas (The Eurographics Association and John Wiley & Sons Ltd., 2018)
      Many real-life materials have a sparkling appearance, whether by design or by nature. Examples include metallic paints, sparkling varnish but also snow. These sparkles correspond to small, isolated, shiny particles reflecting ...

    • Joint SVBRDF Recovery and Synthesis From a Single Image using an Unsupervised Generative Adversarial Network 

      Zhao, Yezi; Wang, Beibei; Xu, Yanning; Zeng, Zheng; Wang, Lu; Holzschuch, Nicolas (The Eurographics Association, 2020)
      We want to recreate spatially-varying bi-directional reflectance distribution functions (SVBRDFs) from a single image. Pro- ducing these SVBRDFs from single images will allow designers to incorporate many new materials in ...

    • Path‐based Monte Carlo Denoising Using a Three‐Scale Neural Network 

      Lin, Weiheng; Wang, Beibei; Yang, Jian; Wang, Lu; Yan, Ling‐Qi (© 2021 Eurographics ‐ The European Association for Computer Graphics and John Wiley & Sons Ltd, 2021)
      Monte Carlo rendering is widely used in the movie industry. Since it is costly to produce noise‐free results directly, Monte Carlo denoising is often applied as a post‐process. Recently, deep learning methods have been ...

    • Ray-aligned Occupancy Map Array for Fast Approximate Ray Tracing 

      Zeng, Zheng; Xu, Zilin; Wang, Lu; Wu, Lifan; Yan, Ling-Qi (The Eurographics Association and John Wiley & Sons Ltd., 2023)
      We present a new software ray tracing solution that efficiently computes visibilities in dynamic scenes. We first introduce a novel scene representation: ray-aligned occupancy map array (ROMA) that is generated by rasterizing ...

    • Real‐Time Microstructure Rendering with MIP‐Mapped Normal Map Samples 

      Tan, Haowen; Zhu, Junqiu; Xu, Yanning; Meng, Xiangxu; Wang, Lu; Yan, Ling‐Qi (© 2022 Eurographics ‐ The European Association for Computer Graphics and John Wiley & Sons Ltd, 2022)
      Normal map‐based microstructure rendering can generate both glint and scratch appearance accurately. However, the extra high‐resolution normal map that defines every microfacet normal may incur high storage and computation ...

    • A Stationary SVBRDF Material Modeling Method Based on Discrete Microsurface 

      Zhu, Junqiu; Xu, Yanning; Wang, Lu (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Microfacet theory is commonly used to build reflectance models for surfaces. While traditional microfacet-based models assume that the distribution of a surface's microstructure is continuous, recent studies indicate that ...

    • Temporally Reliable Motion Vectors for Real-time Ray Tracing 

      Zeng, Zheng; Liu, Shiqiu; Yang, Jinglei; Wang, Lu; Yan, Ling-Qi (The Eurographics Association and John Wiley & Sons Ltd., 2021)
      Real-time ray tracing (RTRT) is being pervasively applied. The key to RTRT is a reliable denoising scheme that reconstructs clean images from significantly undersampled noisy inputs, usually at 1 sample per pixel as limited ...

    • Unsupervised Image Reconstruction for Gradient-Domain Volumetric Rendering 

      Xu, Zilin; Sun, Qiang; Wang, Lu; Xu, Yanning; Wang, Beibei (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Gradient-domain rendering can highly improve the convergence of light transport simulation using the smoothness in image space. These methods generate image gradients and solve an image reconstruction problem with rendered ...