Unofficial world record in fast typing Matthias Müller-Fischer 2012-11-07 | I reactivated the demo version. It is free, has the full functionality and expires in 2015 - a lot of time to check it out :-) play.google.com/store/apps/details?id=ch.optobyte.petkeyboarddemo&hl=enI have developed a new soft keyboard for smart phones. I call it the Pet Keyboard because characters and entire words are invoked by simple hits or short straight pet motions. With it I was able to beat the world record in fast typing. Go to www.petkeyboard.com to check it out. There is a free demo version with all the features but an expiration date.
How to write a rigid body simulator Matthias Müller-Fischer 2024-11-15 | This is the first video of a series of videos on rigid body simulation I will add to my channel "Ten Minute Physics"www.youtube.com/c/TenMinutePhysicsmatthias-research.github.io/pages/tenMinutePhysics/index.html
Physically Based Shape Matching Matthias Müller-Fischer 2023-02-23 | Accompanying for our paper Physically Based Shape Matching published at the Symposium On Computer Animation 2022.Abstract: The shape matching method is a popular approach to simulate deformable objects in interactive applications due to its stability and simplicity. An important feature is that there is no need for a mesh since the method works on arbitrary local groups within a set of particles. A major drawback of shape matching is the fact that it is geometrically motivated and not derived from physical principles which makes calibration difficult. The fact that the method does not conserve volume can yield visual artifacts, e.g. when a tire is compressed but does not bulge.In this paper we present a new meshless simulation method that is related to shape matching but derived from continuous constitutive models. Volume conservation and stiffness can be specified with physical parameters. Further, if the elements of a tetrahedral mesh are used as groups, our method perfectly reproduces FEM based simulations
Getting ready to simulate the world with XPBD Matthias Müller-Fischer 2021-11-19 | This is a re-post of the newest video on my channel "Ten Minute Physics" at youtube.com/channel/UCTG_vrRdKYfrpqCv_WV4eyAAlso check out the tutorial page here: matthias-research.github.io/pages/tenMinutePhysics
A Constraint-based Formulation of Stable Neo-Hookean Materials Matthias Müller-Fischer 2021-11-07 | Video accompanying our new paper published in the conference MIG 2021.You can download the paper from here:matthias-research.github.io/pages/publications/neohookean.pdfPlay with an online demo!matthias-research.github.io/pages/challenges/softBody.htmlSee also my tutorial channel atmatthias-research.github.io/pages/tenMinutePhysics/index.html
Learn 3d Vector Math for Simulations in an intuitive way. Matthias Müller-Fischer 2021-10-07 | This is a tutorial of my "Ten Minute Physics" tutorial series. You can watch them on my channel youtube.com/channel/UCTG_vrRdKYfrpqCv_WV4eyA For the tutorial notes and the source html code and all other tutorials see matthias-research.github.io/pages/tenMinutePhysicsI give an introduction to 3d vector math, the math that we need to write 3d simulations. In the compact presentation I focus on the part used in simulations. In addition to the definitions of the concepts, I explain my personal intuitions behind the concepts which I developed over time.
Introduction to the channel Ten Minute Physics Matthias Müller-Fischer 2021-08-28 | Please check out: matthias-research.github.io/pages/tenMinutePhysics/index.htmlIn my new channel Ten Minute Physics I am publishing short movies that explain techniques to simulate a large variety of physical effects in real time. I give you the physics background and show you how to code the methods.
SCA2020: Detailed Rigid Body Simulation with Extended Position Based Dynamics Matthias Müller-Fischer 2020-09-28 | Have a look at me new channel Ten Minute Physics youtube.com/channel/UCTG_vrRdKYfrpqCv_WV4eyA/featured and the corresponding page matthias-research.github.io/pages/tenMinutePhysics/index.htmlThis is the presentation of our paper at the Symposium of Computer Animation (SCA 2020). The authors of the paper are: Matthias Müller, Miles Macklin, Nuttapong Chentanez, Stefan Jeschke and Tae-Yong Kim. For more videos see instagram.com/matthiasmullerfischerThe link to the conference: http://computeranimation.orgThe link to the paper:matthias-research.github.io/pages/publications/PBDBodies.pdfThe link to paper video: youtube.com/watch?v=CPq87E1vD8kErrata:- Sub-stepping does not remove numerical damping, it only reduces it.- Constraint Examples - Attachment: n must be normalized- Same for the hinge joint.
Remote controlled car + rolling ball simulation Matthias Müller-Fischer 2020-08-21 | Short version of video for the paper "Detailed Rigid Body Simulation with Extended Position Based Dynamics", Symposium on Computer Animation (SCA 2020). The rolling ball sculpture was inspired by the great work of David Morrell: https://www.rollingballsculpture.com.au/
Detailed Rigid Body Simulation with Extended Position Based Dynamics Matthias Müller-Fischer 2020-08-21 | Accompanying video to our paper "Detailed Rigid Body Simulation with Extended Position Based Dynamics", Symposium on Computer Animation (SCA) 2020For more videos see instagram.com/matthiasmullerfischer
FLEX: Unified Particle Physics for Real-Time Applications Matthias Müller-Fischer 2019-09-10 | Accompanying video of the paper "Unified Particle Physics for Real-Time Applications" SIGGRAPH 2014
Small Steps in Physics Simulation Matthias Müller-Fischer 2019-09-05 | Video of our paper "Small Steps in Physics Simulation". It demonstrates that replacing iterations with sub-steps is very effective in simulations.
Physically-Based Simulation of Objects Represented by Surface Meshes Matthias Müller-Fischer 2019-09-05 | A video of a very very old paper :-)
Flying home with mavic pro 2 Matthias Müller-Fischer 2019-03-27 | My great new toy, the really cool drone mavic pro 2 :-)
Cable Joints Matthias Müller-Fischer 2018-07-16 | Accompanying video of our paper "Cable Joints". Extremely fast (up to 80,000 fps) simulation of cables as a series of joints between rigid bodies.
Long Range Constraints for Rigid Body Simulations Matthias Müller-Fischer 2017-06-12 | Accompanying video to our paper "Long Range Constraints for Rigid Body Simulations", SCA 2017
Computer balances two sticks Matthias Müller-Fischer 2017-01-23 | The computer is only allowed to move the plate (add forces to it) to keep the top of the upper stick in place at zero velocity. The controller is about 40 lines of code on top of a standard rigid body solver.
Spectacular model car performance on ice and snow (Reely Dune Fighter Brushless) Matthias Müller-Fischer 2017-01-08 | This is the Reely Dune Fighter Brushless 1:10 RC I bought for my son for christmas. The model is recommended for 14+. He drove it in this video for the first time and he is 7 :-) I can really recommend this toy! Make sure you buy a strong battery pack. I use a LiPo 7.4 V 4000 mAh.
XPBD: Position-Based Simulation of Compliant Constrained Dynamics Matthias Müller-Fischer 2016-09-19 | We finally solved the long-standing problem of iteration count and time step dependent constraint stiffness in Position Based Dynamics (PBD) with a very small addition to the original algorithm we call XPBD.
A Robust Method to Extract the Rotational Part of Deformations Matthias Müller-Fischer 2016-09-01 | This is the accompanying video of our paper M. Müller, J. Bender, N. Chentanez, M. Macklin, A Robust Method to Extract the Rotational Part of Deformations, in Proceedings of ACM Motion in Games. Abstract: We present a novel algorithm to extract the rotational part of an arbitrary 3x3 matrix. This problem lies at the core of two popular simulation methods in computer graphics, the co-rotational Finite Element Method and Shape Matching techniques. In contrast to the traditional method based on polar decomposition, degenerate configurations and inversions are handled robustly and do not have to be treated in a special way. In addition, our method can be implemented with only a few lines of code without branches which makes it particularly well suited for GPU-based applications. We demonstrate the robustness, coherence and efficiency of our method by comparing it to stabilized polar decomposition in several simulation scenarios.
Simulating Visual Geometry Matthias Müller-Fischer 2016-09-01 | This the accompanying video of our paper M. Müller, N. Chentanez, M. Macklin, Simulating Visual Geometry, in Proceedings of ACM Motion in Games, San Francisco, October 2016. Abstract: In computer graphics, simulated objects typically have two or three different representations, a visual mesh, a simulation mesh and a collection of convex shapes for collision handling. Using multiple representations requires skilled authoring and complicates object handing at run time. It can also produce visual artifacts such as a mismatch of collision behavior and visual appearance. The reason for using multiple representation has been performance restrictions in real time environments. However, for virtual worlds, we believe that the ultimate goal must be WYSIWYS – what you see is what you simulate, what you can manipulate, what you can touch.In this paper we present a new method that uses the same representation for simulation and collision handling and an almost identical visualization mesh. This representation is very close and directlyderived from a visual input mesh which does not have to be prepared for simulation but can be non-manifold, non-conforming and self-intersecting.
Real-time Simulation of Large Elasto-Plastic Deformation with Shape Matching Matthias Müller-Fischer 2016-07-04 | Accompanying video of our paper N. Chentanez, M. Müller, M. Macklin, "Real-time Simulation of Large Elasto-Plastic Deformation with Shape Matching", SCA 2016
Real time simulation of multi layered clothing Matthias Müller-Fischer 2016-04-20 | To do this we used our method described here http://matthias-mueller-fischer.ch/publications/airMeshesPreprint.pdf
Novodex Truck Demo Matthias Müller-Fischer 2016-01-25 | A cool demo released in 2002 showing off the Novodex SDK (predecessor of PhysX) - written by Adam Moravanszky and Pierre Terdiman
Air meshes Siggraph Fast Forward clip Matthias Müller-Fischer 2015-08-10 | In the Fast Forward show at Siggraph this year they screwed up the sound of my clip. For those how are interested, here it is *with* sound :-)
Fracture paper teaser Matthias Müller-Fischer 2015-07-03 | I just found this short video that we prepared for the Siggraph Fast Forward session in 2013 :-)
Air Meshes for Robust Collision Handling Matthias Müller-Fischer 2015-07-02 | Accompanying video of your paper "Air Meshes for Robust Collision Handling", Matthias Müller, Nuttapong Chentanez, Tae-Yong Kim, Miles Macklin, Siggraph 2015. See http://matthias-mueller-fischer.ch/publications/airMeshesPreprint.pdf
Strain Based Dynamics Matthias Müller-Fischer 2014-08-06 | Video of paper: M. Müller, N. Chentanez, T.Y. Kim, M. Macklin Strain Based Dynamics
Hybrid Water Simulation Matthias Müller-Fischer 2014-08-05 | Video of paper: N. Chentanez, M. Müller, T.Y. Kim, Coupling 3D Eulerian, Height Field and Particle Methods for the Simulation of Large Scale Liquid Phenomena
Android Fluid / Liquid Simulation Matthias Müller-Fischer 2013-06-20 | You can download the app now from the play store. Look for "LiquidFun".This is my particle based liquid simulation "Liquid Fun" on Android. It supports a variety of parameters and is a nice amusement during boring tele conferences :-) I will upload it to the play store soon.Background music: Red Ocean (Oversea), Generic (John Vanger), Good Morning (United Trance Force), all rights reserved.
Real Time Dynamic Fracture with Volumetric Approximate Convex Decompositions Matthias Müller-Fischer 2013-04-23 | Accompanying video of our paper with the same name.
Massive Destruction in Real-Time Matthias Müller-Fischer 2013-03-27 | Thanks for all the feedback. We are working on stress based fracture to make the demo more realistic (will tweet on @matthimf when we have new results). If you like, have a look at my spare time project here http://youtu.be/WhafSk35N34 as well.We just got our paper "Real Time Dynamic Fracture with Volumetric Approximate Convex Decompositions" which describes the technology behind this demo accepted by Siggraph. Once we have the final approved version of the paper ready, we will put it online.
Fast Simulation of Inextensible Hair and Fur Matthias Müller-Fischer 2012-12-21 | Accompanying video of paper M. Müller, T.Y. Kim, N. Chentanez, Fast Simulation of Inextensible Hair and Fur, VriPhys 2012 (http://matthiasmueller.info/publications/FTLHairFur.pdf)Abstract: In this paper we focus on the fast simulation of hair and fur on animated characters. While it is common in films to simulate single hair strands on virtual humans and on furry animals, those features are either not present on characters in computer games or modeled with simplified textured meshes. The main difficulty of simulating hair in real time applications is the sheer number of hair strands and the fact that each hair is inextensible. Keeping thousands of deformable objects from being stretched is computationally expensive.In this paper, we present a robust method for simulating hair and fur that guarantees inextensiblity with a single iteration per frame. For an iteration count this low, existing methods either become unstable or introduce a substantial amount of stretching. Our method is geometric in nature and able to simulate thousands of inextensible hair strands in real time.
Pet Keyboard Matthias Müller-Fischer 2012-08-31 | Get the free demo version of the Pet Keyboard fromplay.google.com/store/search?q=petkeyboarddemo&c=appsIt has the full functionality and an expiration date. The full version is only 1 dollar:play.google.com/store/search?q=petkeyboard&c=apps
Mass-Conserving Eulerian Liquid Simulation Matthias Müller-Fischer 2012-07-20 | Video of the paper Nuttapong Chentanez, Matthias Müller, Mass-Conserving Eulerian Liquid Simulation, SCA2012Abstract: We present a GPU friendly, Eulerian, free surface fluid simulation method that conserves mass locally and globally without the use of Lagrangian components. Local mass conservation prevents small scale details of the free surface from disappearing, a problem that plagues many previous approaches, while global mass conservation ensures that the total volume of the liquid does not decrease over time. Our method handles moving solid boundaries as well as cells that are partially filled with solids. Due to its stability, it allows the use of large time steps which makes it suitable for both off-line and real-time applications. We achieve this by using density based surface tracking with a novel, unconditionally stable, conservative advection scheme and a novel interface sharpening method. While our approach conserves mass, volume loss is still possible but only temporarily. With constant mass, local volume loss causes a local increase of the density used for surface tracking which we detect and correct over time. We also propose a density post-processing method to reveal sub-grid details of the liquid surface.We show the effectiveness of the proposed method in several practical examples all running either at interactive rates or in real-time.
Long Range Attachments - A Method to Simulate Inextensible Clothing in Computer Games Matthias Müller-Fischer 2012-07-20 | Video of paper Tae-Yong Kim, Nuttapong Chentanez, Matthias Müller, Long Range Attachments - A Method to Simulate Inextensible Clothing in Computer Games, SCA 2012.Abstract: often require solving global non-linear systems and remain computationally expensive for computer game uses. Real time performance can be achieved by allowing damping or stretching at reduced solver costs, but these compromise visual realism - the cloth either looks stretchy or fine wrinkles get lost.Our long range attachment (LRA) method exploits that typical game character clothing tends to be attached to some kinematic parts of the character. LRA method applies unilateral distance constraint between free particles of the cloth to distant attachment point on the character, preventing them from stretching away from the kinematically driven attachments (e.g. shoulder for a cape). This simple step provides an efficient shortcut for enforcing global inextensibility that can be readily implemented into existing game physics methods such as PBD.
Nvidia GDC 2012 fracture demo Matthias Müller-Fischer 2012-03-14 | This video shows scenes of the real-time fracture demo we showed at the nvidia booth at GDC 2012.
Real-time dynamic destruction of non-convex pieces Matthias Müller-Fischer 2012-03-09 | In typical real-time destruction scenarios, objects are turned into pre-fractured pieces. This is fast but the pattern does not depend on the impact location. Also, the number of times a piece can be fractured is limited.In this video we show our new destruction prototype. Here, objects are fractured on the fly. There is no limit of how many times pieces can be fractured. Also, the fracture pattern depends on the impact location. The original objects as well as the pieces are allowed to be non-convex which is an additional challenge.To simulate the massive amount of rigid bodies we use GRBs - GPU accelerated rigid boides. The scene runs above 40 fps until the end including rendering on an nvidia GeForce GTX 480.
Dynamic, non-prefactured destruction in real time Matthias Müller-Fischer 2012-03-09 | In typical real-time destruction scenarios, objects are turned into pre-fractured pieces. This is fast but the pattern does not depend on the impact location. Also, the number of times a piece can be fractured is limited.In this video we show our new destruction prototype. Here, objects are fractured on the fly. There is no limit of how many times pieces can be fractured. Also, the fracture pattern depends on the impact location. To simulate the massive amount of rigid bodies we use GRBs - GPU accelerated rigid boides. The scene runs above 40 fps until the end including rendering on an nvidia GeForce GTX 480.
lots of lionfish using CUDA Matthias Müller-Fischer 2011-11-04 | For Siggraph I only had a CPU implementation. Now I ported the solver to the GPU and can do 100's of fish instead of 5 in real time.
SPH-Based Shallow Water Simulation Matthias Müller-Fischer 2011-10-18 | Created by Peter Bucher. Accompanying video of paper: B. Solenthaler, P. Bucher, N. Chentanez, M. Müller, M. Gross, SPH Based Shallow Water Simulation, VriPhys 2011.
A Fluid Pressure Solver Handling Separating Solid Boundary Conditions Matthias Müller-Fischer 2011-08-15 | That is the accompanying video of the paper "A Fluid Pressure Solver Handling Separating Solid Boundary Conditions" published in the Symposium On Computer Animation (SCA) 2011 proceedings. Video by Nuttapong Chentanez
Oriented Particles Siggraph Fastforward Matthias Müller-Fischer 2011-08-15 | This is the 50 seconds teaser video showed at the Siggraph 2011 fast forward session for our paper "Solid Simulation with Oriented Particles".
Real-Time Eulerian Water Simulation Matthias Müller-Fischer 2011-06-15 | Video by Nuttapong Chentanez. The technique used is described in the paper Chentanez et al., Real-Time Eulerian Water Simulation Using a Restricted Tall Cell Grid, Siggraph 2011.For more videos see instagram.com/matthiasmullerfischer
Solid Simulation with Oriented Particles Matthias Müller-Fischer 2011-06-15 | Video of paper Müller et al., Solid Simulation With Oriented Particles, Siggraph 2011
Wrinkle Meshes Matthias Müller-Fischer 2011-06-15 | A fine visual mesh is animated with a coarse simulation mesh to give the impression of fine physical simulation. Video of paper Müller et al., Wrinkle Meshes, SCA 2010
Warped Stiffness FEM Matthias Müller-Fischer 2011-06-15 | Warped Stiffness is a method to remove the artifacts in linear FEM under large rotations. Video of paper Müller et al., Stable Real-Time Deformations, SCA 2002
Screen Space Meshes Matthias Müller-Fischer 2011-06-15 | A technique to render the surface of particle fluids. It creates the surface mesh in screen space and projects it back to 3d. Video of paper Müller et al., Screen Space Meshes, SCA 2007
Simulation based on shape matching Matthias Müller-Fischer 2011-06-15 | Video created by Bruno Heidelberger showing robust simulation of deformable objects. The technique is described in the paper Müller et al., Meshless Deformations Based on Shape Matching, Siggraph 2005
