A Class of C2 Interpolating Splines - Paper Presentation at SIGGRAPH 2020 Cem Yuksel 2026-09-21 | A Class of C2 Interpolating Splines - Paper Presentation at SIGGRAPH 2020
Real-Time Hair Rendering with Hair Meshes - SIGGRAPH 2024 Cem Yuksel 2024-07-19 | Gaurav Bhokare, Eisen Montalvo, Elie Diaz, Cem YukselReal-Time Hair Rendering with Hair MeshesSIGGRAPH Conference Papers, 2024Project page: http://cemyuksel.com/research/hairmesh_renderingHair meshes are known to be effective for modeling and animating hair in computer graphics. We present how the hair mesh structure can be used for efficiently rendering strand-based hair models on the GPU with on-the-fly geometry generation that provides orders of magnitude reduction in storage and memory bandwidth. We use mesh shaders to carefully distribute the computation and a custom texture layout for offloading a part of the computation to the hardware texture units. We also present a set of procedural styling operations to achieve hair strand variations for a wide range of hairstyles and a consistent coordinate-frame generation approach to attach these variations to an animating/deforming hair mesh. Finally, we describe level-of-detail techniques for improving the performance of rendering distant hair models. Our results show an unprecedented level of performance with strand-based hair rendering, achieving hundreds of full hair models animated and rendered at real-time frame rates on a consumer GPU.
Area ReSTIR - SIGGRAPH 2024 Cem Yuksel 2024-05-14 | Song Zhang*, Daqi Lin*, Markus Kettunen, Cem Yuksel, Chris WymanArea ReSTIR: Resampling for Real-Time Defocus and AntialiasingACM Transactions on Graphics (Proceedings of SIGGRAPH 2024), 43, 4, 2024(*Joint First Authors)Project page: https://graphics.cs.utah.edu/research/projects/area-restir/
Locally-Adaptive Level-of-Detail for Hardware-Accelerated Ray Tracing - SIGGRAPH Asia 2023 Cem Yuksel 2023-10-09 | Jacob Haydel, Cem Yuksel, Larry Seiler, “Locally-Adaptive Level-of-Detail for Hardware-Accelerated Ray Tracing,” ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia 2023), 42, 6, 2023.https://graphics.cs.utah.edu/research/projects/ray-tracing-hw-adaptive-lod/
Sag-Free Initialization for Strand-Based Hybrid Hair Simulation - SIGGRAPH 2023 Cem Yuksel 2023-05-16 | Jerry Hsu, Tongtong Wang, Zherong Pan, Xifeng Gao, Cem Yuksel, Kui Wu, “Sag-Free Initialization for Strand-Based Hybrid Hair Simulation,” ACM Transactions on Graphics (Proceedings of SIGGRAPH 2023), 42, 4, 2023.https://graphics.cs.utah.edu/research/projects/sag-free-hair/
SIGGRAPH 2022 Talk - A Fast & Robust Solution for Cubic & Higher-Order Polynomials Cem Yuksel 2022-09-16 | This is the recording of my SIGGRAPH 2022 Talk: A Fast & Robust Solution for Cubic & Higher-Order Polynomials.Project Page: http://www.cemyuksel.com/?x=PolynomialHPG 2022 Talk: youtu.be/CoGo_3C7xR0?t=7070Abstract:We present a computationally-efficient and numerically-robust algorithm for finding real roots of polynomials. It begins with determining the intervals where the given polynomial is monotonic. Then, it performs a robust variant of Newton iterations to find the real root within each interval, providing fast and guaranteed convergence and satisfying the given error bound, as permitted by the numerical precision used.For cubic polynomials, the algorithm is more accurate and faster than both the analytical solution and directly applying Newton iterations. It trivially extends to polynomials with arbitrary degrees, but it is limited to finding the real roots only and has quadratic worst-case complexity in terms of the polynomial's degree.We show that our method outperforms alternative polynomial solutions we tested up to degree 20. We also present an example rendering application with a known efficient numerical solution and show that our method provides faster, more accurate, and more robust solutions by solving polynomials of degree 10.00:00 Introduction01:10 Quadratic Polynomials (degree 2)02:13 Cubic Polynomials (degree 3)09:42 Higher-Order Polynomials (degree 4+)11:45 Numerical Root Finding13:14 Computation Times15:02 Challenge: Hair Rendering18:34 Conclusion
Virtual Blue Noise Lighting - HPG 2022 Cem Yuksel 2022-07-10 | Tianyu Li, Wenyou Wang, Daqi Lin, Cem YukselVirtual Blue Noise LightingProc. ACM Comput. Graph. Interact. Tech. (Proceedings of HPG 2022), 5, 3, 2022https://graphics.cs.utah.edu/research/projects/virtual-blue-noise-lighting/
A General Two-Stage Initialization for Sag-Free Deformable Simulations - SIGGRAPH 2022 Cem Yuksel 2022-05-09 | Jerry Hsu, Nghia Truong, Cem Yuksel, Kui Wu"A General Two-Stage Initialization for Sag-Free Deformable Simulations"ACM Transactions on Graphics (Proceedings of SIGGRAPH 2022), 41, 4, 2022https://graphics.cs.utah.edu/research/projects/sag-free-simulations/
Generalized Resampled Importance Sampling: Foundations of ReSTIR - SIGGRAPH 2022 Paper Video Cem Yuksel 2022-05-04 | Daqi Lin*, Markus Kettunen*, Benedikt Bitterli, Jacopo Pantaleoni, Cem Yuksel, Chris Wyman"Generalized Resampled Importance Sampling: Foundations of ReSTIR"ACM Transactions on Graphics (Proceedings of SIGGRAPH 2022), 41, 4, 2022.(*Joint first authors; equal contribution.)Utah Page:https://graphics.cs.utah.edu/research/projects/gris/NVIDIA Page:research.nvidia.com/publication/2022-07_generalized-resampled-importance-sampling-foundations-restir
Interactive Graphics 26 - GPU Ray Tracing Cem Yuksel 2022-04-18 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/Introduction to DirectX Ray Tracing, ACM SIGGRAPH 2018 CoursesChris Wyman, Shawn Hargreaves, Peter Shirley, Colin Barré-Briseboishttp://intro-to-dxr.cwyman.org
Interactive Graphics 25 - Volume Rendering Cem Yuksel 2022-04-13 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/0:00:00 Introduction0:00:17 Applications0:02:58 Volume Rendering for Visualization0:28:49 Volume Rendering for Graphics1:02:05 Volumetric Shadows1:08:22 NanoVDB1:09:42 Conclusion
Interactive Graphics 24 - Refractions, Transparency, Blending, & Alpha Testing Cem Yuksel 2022-04-11 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/
Interactive Graphics 23 - Ambient Occlusion & Soft Shadows Cem Yuksel 2022-04-06 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/
Interactive Graphics 22 - Global Illumination Cem Yuksel 2022-04-04 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/
Interactive Graphics 21 - Deferred, Variable-Rate, & Adaptive Shading Cem Yuksel 2022-03-30 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/
Interactive Graphics 20 - Compute & Mesh Shaders Cem Yuksel 2022-03-28 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/NVIDIA's Compute Shader Ocean Demo (2009):youtube.com/watch?v=K1I4kts5mqcShawn Hargreaves. 2020. Reinventing the Geometry Pipeline: Mesh Shaders in DirectX12. DirectX Dev Day.youtube.com/watch?v=CFXKTXtil34NVIDIA's Asteroids Mesh Shaders Demo (2018):youtube.com/watch?v=CRfZYJ_sk5E
Interactive Graphics 19 - Bump, Normal, Displacement, and Parallax Mapping Cem Yuksel 2022-03-23 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/Parallax Mapping WebGL Demo:apoorvaj.io/exploring-bump-mapping-with-webglOther examples:en.wikipedia.org/wiki/Bump_mappingrendernode.com/creating-bump-maps-in-photoshophttp://3dmodeling4business.compeachpit.com/articles/article.aspx?p=31330&seqNum=9http://www.opengl-tutorial.orglearnopengl.com/Advanced-Lighting/Normal-Mappingen.wikipedia.org/wiki/Normal_mappingdocs.unity3d.com/Manual/StandardShaderMaterialParameterNormalMap.htmltutorials.cgrecord.net/2017/05/working-with-bumps-and-normal-mapping.htmlcgcookie.com/articles/normal-vs-displacement-mapping-why-games-use-normalsgamegeniuscouk.wordpress.com/2018/06/26/what-is-a-normal-mapen.wikipedia.org/wiki/Displacement_mappingcggallery.com/tutorials/displacementcgcookie.com/articles/normal-vs-displacement-mapping-why-games-use-normalslearnopengl.com/Advanced-Lighting/Parallax-Mappinghttp://wiki.polycount.com/wiki/Parallax_Mapgamedev.net/articles/programming/graphics/a-closer-look-at-parallax-occlusion-mapping-r3262youtube.com/watch?v=akyIJJ3el_Q
Interactive Graphics 18 - Tessellation Shaders Cem Yuksel 2022-03-20 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/
Interactive Graphics 17 - Geometry Shaders Cem Yuksel 2022-03-14 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/Geometry shader examples:roystan.net/articles/grass-shader.htmlgithub.com/chenjd/Unity-Miscellaneous-ShadersRendering Billboard Particle Smoke With Blender Cycles:youtube.com/watch?v=tL0G5oOjdtk
Interactive Graphics 16 - Shadow Mapping Cem Yuksel 2022-03-02 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/
Interactive Graphics 15 - Lights & Shadows Cem Yuksel 2022-02-28 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/Cem Yuksel, “Point Light Attenuation Without Singularity,” ACM SIGGRAPH 2020 Talks, 2020.youtube.com/watch?v=wzIcjzKQ2BEhttp://www.cemyuksel.com/research/pointlightattenuationEric Heitz, Jonathan Dupuy, Stephen Hill, and David Neubelt. 2016. Real-time polygonal-light shading with linearly transformed cosines. ACM Trans. Graph. (SIGGRAPH 2016) 35, 4, Article 41 (July 2016), 8 pages. eheitzresearch.wordpress.com/415-2Marc Stamminger and George Drettakis. 2002. Perspective shadow maps. ACM Trans. Graph. 21, 3 (July 2002), 557–562.https://www-sop.inria.fr/reves/Basilic/2002/SD02/Simon Kozlov, Perspective Shadow Maps: Care and Feeding, GPU Gems, 2004.developer.download.nvidia.com/books/HTML/gpugems/gpugems_ch14.htmlEric Heitz, Stephen Hill, and Morgan McGuire. 2018. Combining analytic direct illumination and stochastic shadows. In Proceedings of I3D '18. eheitzresearch.wordpress.com/705-2
Interactive Graphics 14 - Reflections Cem Yuksel 2022-02-23 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/
Interactive Graphics 13 - Environment Mapping Cem Yuksel 2022-02-21 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/
Interactive Graphics 12 - The Rendering Equation Cem Yuksel 2022-02-16 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/
Interactive Graphics 11 - Render to Texture Cem Yuksel 2022-02-14 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/
Interactive Graphics 10 - Textures on the GPU Cem Yuksel 2022-02-09 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/More information on mesh colors:http://www.cemyuksel.com/research/meshcolors
Interactive Graphics 09 - Textures Cem Yuksel 2022-02-07 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/More information on mesh colors:http://www.cemyuksel.com/research/meshcolors
Interactive Graphics 08 - Lights & Shading Cem Yuksel 2022-02-02 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/
Interactive Graphics 07 - Triangular Meshes Cem Yuksel 2022-01-31 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/
Interactive Graphics 06 - Introduction to GLSL & OpenGL Extensions Cem Yuksel 2022-01-24 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/
Interactive Graphics 05 - Introduction to Modern OpenGL Cem Yuksel 2022-01-23 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/
Interactive Graphics 04 - Windowing APIs Cem Yuksel 2022-01-17 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/
Interactive Graphics 03 - Rendering Algorithms Cem Yuksel 2022-01-13 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/
Interactive Graphics 02 - Images & Transformations Cem Yuksel 2022-01-12 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/
Interactive Graphics 01 - Introduction Cem Yuksel 2022-01-10 | Interactive Computer Graphics.School of Computing, University of Utah.Full Playlist: youtube.com/playlist?list=PLplnkTzzqsZS3R5DjmCQsqupu43oS9CFNCourse website: https://graphics.cs.utah.edu/courses/cs6610/spring2021/
Intro to Graphics 25 - Simulation in Graphics Cem Yuksel 2021-11-30 | Introduction to Computer Graphics.School of Computing, University of Utah.Full playlist: youtube.com/playlist?list=PLplnkTzzqsZTfYh4UbhLGpI5kGd5oW_HhCourse website: https://graphics.cs.utah.edu/courses/cs4600/fall2020/2020 Houdini Film & TV Reel: youtube.com/watch?v=9yYh283DVWw
Intro to Graphics 24 - Physics Based Animation Cem Yuksel 2021-11-27 | Introduction to Computer Graphics.School of Computing, University of Utah.Full playlist: youtube.com/playlist?list=PLplnkTzzqsZTfYh4UbhLGpI5kGd5oW_HhCourse website: https://graphics.cs.utah.edu/courses/cs4600/fall2020/
Intro to Graphics 23 - Computer Animation Cem Yuksel 2021-11-20 | Introduction to Computer Graphics.School of Computing, University of Utah.Full playlist: youtube.com/playlist?list=PLplnkTzzqsZTfYh4UbhLGpI5kGd5oW_HhCourse website: https://graphics.cs.utah.edu/courses/cs4600/fall2020/
Intro to Graphics 22 - Signal Processing Cem Yuksel 2021-11-14 | Introduction to Computer Graphics.School of Computing, University of Utah.Full playlist: youtube.com/playlist?list=PLplnkTzzqsZTfYh4UbhLGpI5kGd5oW_HhCourse website: https://graphics.cs.utah.edu/courses/cs4600/fall2020/
Intro to Graphics 21 - Sampling Cem Yuksel 2021-11-10 | Introduction to Computer Graphics.School of Computing, University of Utah.Full playlist: youtube.com/playlist?list=PLplnkTzzqsZTfYh4UbhLGpI5kGd5oW_HhCourse website: https://graphics.cs.utah.edu/courses/cs4600/fall2020/
Intro to Graphics 20 - Shadows & Reflections Cem Yuksel 2021-11-06 | Introduction to Computer Graphics.School of Computing, University of Utah.Full playlist: youtube.com/playlist?list=PLplnkTzzqsZTfYh4UbhLGpI5kGd5oW_HhCourse website: https://graphics.cs.utah.edu/courses/cs4600/fall2020/
Intro to Graphics 19 - Ray Tracing Cem Yuksel 2021-11-02 | Introduction to Computer Graphics.School of Computing, University of Utah.Full playlist: youtube.com/playlist?list=PLplnkTzzqsZTfYh4UbhLGpI5kGd5oW_HhCourse website: https://graphics.cs.utah.edu/courses/cs4600/fall2020/
Intro to Graphics 18 - Rendering Algorithms Cem Yuksel 2021-10-30 | Introduction to Computer Graphics.School of Computing, University of Utah.Full playlist: youtube.com/playlist?list=PLplnkTzzqsZTfYh4UbhLGpI5kGd5oW_HhCourse website: https://graphics.cs.utah.edu/courses/cs4600/fall2020/
Intro to Graphics 17 - The Rendering Equation Cem Yuksel 2021-10-28 | Introduction to Computer Graphics.School of Computing, University of Utah.Full playlist: youtube.com/playlist?list=PLplnkTzzqsZTfYh4UbhLGpI5kGd5oW_HhCourse website: https://graphics.cs.utah.edu/courses/cs4600/fall2020/
Fast Volume Rendering with Spatiotemporal Reservoir Resampling - SIGGRAPH Asia 2021 Cem Yuksel 2021-09-15 | Daqi Lin, Chris Wyman, Cem Yuksel, "Fast Volume Rendering with Spatiotemporal Reservoir Resampling," ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia 2021).https://graphics.cs.utah.edu/research/projects/volumetric-restir/
Particle Merging-and-Splitting - Video Abstract, TVCG 2021 Cem Yuksel 2021-08-30 | Project page: https://graphics.cs.utah.edu/research/projects/merging-and-splitting/Nghia Truong, Cem Yuksel, Chakrit Watcharopas, Joshua A. Levine, Robert M. Kirby, "Particle Merging-and-Splitting," IEEE Transactions on Visualization and Computer Graphics, 2021To be presented at SCA 2021: computeranimation.org/program.html
Hardware Adaptive High-Order Interpolation for Real-Time Graphics (HPG 2021 Talk by Daqi Lin) Cem Yuksel 2021-07-12 | Daqi Lin's paper presentation talk at the High-Performance Graphics (HPG 2021) conference.Project page: https://dqlin.xyz/pubs/2021-hpg-HOI/Daqi Lin, Larry Seiler, Cem Yuksel, "Hardware Adaptive High-Order Interpolation for Real-Time Graphics," Computer Graphics Forum (Proceedings of HPG 2021), 40, 8, 2021.* Wolfgang Straßer Best Paper Award, 2nd placeAbstract:Interpolation is a core operation that has widespread use in computer graphics. Though higher-order interpolation provides better quality, linear interpolation is often preferred due to its simplicity, performance, and hardware support. We present a unified refactoring of quadratic and cubic interpolations as standard linear interpolation plus linear interpolations of higher-order terms and show how they can be applied to regular grids and (triangular/tetrahedral) simplexes Our formulations can provide a significant reduction in computation cost, as compared to typical higher-order interpolations and prior approaches that utilize existing hardware linear interpolation support to achieve higher-order interpolation. In addition, our formulation allows approximating the results by dynamically skipping some higher-order terms with low weights for further savings in both computation and storage. Thus, higher-order interpolation can be performed adaptively, as needed. We also describe how relatively minor modifications to existing GPU hardware could provide hardware support for quadratic and cubic interpolations using our approach for both texture filtering operations and barycentric interpolation. We present a variety of examples using triangular, rectangular, tetrahedral, and cuboidal interpolations, showing the effectiveness of our higher-order interpolations in different applications.
Particle Merging-and-Splitting - TVCG 2021 Cem Yuksel 2021-07-05 | N. Truong, C. Yuksel, C. Watcharopas, J. A. Levine and R. M. Kirby, "Particle Merging-and-Splitting," in IEEE Transactions on Visualization and Computer Graphics, doi: 10.1109/TVCG.2021.3093776.Abstract: Robustly handling collisions between individual particles in a large particle-based simulation has been a challenging problem. We introduce particle merging-and-splitting, a simple scheme for robustly handling collisions between particles that prevents inter-penetrations of separate objects without introducing numerical instabilities. This scheme merges colliding particles at the beginning of the time-step and then splits them at the end of the time-step. Thus, collisions last for the duration of a time-step, allowing neighboring particles of the colliding particles to influence each other. We show that our merging-and-splitting method is effective inrobustly handling collisions and avoiding penetrations in particle-based simulations. We also show how our merging-and-splitting approach can be used for coupling different simulation systems using different and otherwise incompatible integrators. We present simulation tests involving complex solid-fluid interactions, including solid fractures generated by fluid interactions.Publisher's page: http://dx.doi.org/10.1109/TVCG.2021.3093776
Intro to Graphics 16 - Shading Transformations Cem Yuksel 2021-06-03 | Introduction to Computer Graphics.School of Computing, University of Utah.Full playlist: youtube.com/playlist?list=PLplnkTzzqsZTfYh4UbhLGpI5kGd5oW_HhCourse website: https://graphics.cs.utah.edu/courses/cs4600/fall2020/
Intro to Graphics 15 - Shading Cem Yuksel 2021-05-28 | Introduction to Computer Graphics.School of Computing, University of Utah.Full playlist: youtube.com/playlist?list=PLplnkTzzqsZTfYh4UbhLGpI5kGd5oW_HhCourse website: https://graphics.cs.utah.edu/courses/cs4600/fall2020/
Intro to Graphics 14 - Textures on the GPU Cem Yuksel 2021-05-24 | Introduction to Computer Graphics.School of Computing, University of Utah.Full playlist: youtube.com/playlist?list=PLplnkTzzqsZTfYh4UbhLGpI5kGd5oW_HhCourse website: https://graphics.cs.utah.edu/courses/cs4600/fall2020/
