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Unreal Engine 4.26-Chaos Preview now available on the Epic Games launcher

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    [PREVIEW] Unreal Engine 4.26-Chaos Preview now available on the Epic Games launcher

    If you’ve been itching to give the Chaos Physics and Destruction System a try, without needing to compile source, this is the build for you! Now you can help us battle test and refine this system as we head towards a production-ready release.

    Finding Chaos
    Head to the Epic Games launcher and install Unreal Engine 4.26-Chaos Preview from the list of available versions in the install dropdown. In this binary build, Chaos replaces PhysX for all physics simulations, including cloth, vehicles, and destruction.

    Note: 4.26-Chaos can be found at the bottom of the dropdown.


    Chaos-ready templates and demos
    Once you’ve downloaded the 4.26-Chaos Preview build, you can test drive the Vehicle and Advanced Vehicle templates with updated Chaos actors, and smash into the Chaos Destruction Demo, available on the Learn Tab. To get started with the Chaos Destruction Demo, you’ll need to follow these instructions on how to configure it for the new Preview.

    Share your thoughts
    In the wake of your destruction, please don’t forget to file any bugs you unearth and feel free to share your feedback in the comments below.

    Happy developing!
    Last edited by Amanda.Schade; 12-16-2020, 05:33 PM.

    #2
    Getting this trying to launch a project with it:

    [2020.12.17-04.40.35:417][ 0]LogWindows: Error: === Critical error: ===
    [2020.12.17-04.40.35:418][ 0]LogWindows: Error:
    [2020.12.17-04.40.35:418][ 0]LogWindows: Error: Assertion failed: HorizonNext->Vertex == HorizonEdges[(HorizonIdx + 1) % HorizonEdges.Num()]->Vertex [File:\Build\++UE4\Sync\Engine\Source\Runtime\Experimental\Chaos\Public\Chaos\CollisionConvexMesh.h] [Line: 943]
    [2020.12.17-04.40.35:418][ 0]LogWindows: Error:
    [2020.12.17-04.40.35:418][ 0]LogWindows: Error:
    [2020.12.17-04.40.35:418][ 0]LogWindows: Error:
    [2020.12.17-04.40.35:418][ 0]LogWindows: Error: [Callstack] 0x00007ffe515bd759 KERNELBASE.dll!UnknownFunction []
    [2020.12.17-04.40.35:418][ 0]LogWindows: Error: [Callstack] 0x00007ffdd37cde06 UE4Editor-Core.dll!UnknownFunction []

    This is the same error that was shown in preview builds and documented by others here: https://answers.unrealengine.com/que...with-chao.html

    Comment


      #3
      not a bug but a feature request, please make it possible to fracture mesh based on its material ID, I mean each material ID detected on a mesh can have differents fracture settings applied! it will make the workflow much more convenient and will save an incredible amout of time when using chaos destruction for large scale project! despite saving time, it will make already setup geometry/mesh of existing projects in development compatible and you don't have to redivide, re arrange and setup meshes to get it running destruction conveniably.
      Next Gen Modular City V2, the big pack ever created on marketplace with a strict AAA quality requirements and full support of interiors

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      Comment


        #4
        Originally posted by Omarito View Post
        not a bug but a feature request, please make it possible to fracture mesh based on its material ID, I mean each material ID detected on a mesh can have differents fracture settings applied! it will make the workflow much more convenient and will save an incredible amout of time when using chaos destruction for large scale project! despite saving time, it will make already setup geometry/mesh of existing projects in development compatible and you don't have to redivide, re arrange and setup meshes to get it running destruction conveniably.
        Thanks for the feedback, Omarito! We've passed the feature request along to the team.

        Comment


          #5
          Will this fork get updated with the official release? 4.26.1-Chaos Preview, 4.26.2-Chaos Preview, etc? Or will it stay at 4.26.0?

          Comment


            #6
            The Chaos Preview is great. I can get the 4.26 Chaos Demo to run? Help.

            Comment


              #7
              Originally posted by Sam_TinFoil View Post

              Thanks for the feedback, Omarito! We've passed the feature request along to the team.
              yeah thanks
              Next Gen Modular City V2, the big pack ever created on marketplace with a strict AAA quality requirements and full support of interiors

              Procedural Building Generator for UE4 MP to power up^up indie devs

              High quality Antenna and Dish Pack Vol 1

              Road Sign Free Assets

              Advanced Race Car Pack

              Comment


                #8
                Originally posted by theProfessor View Post
                The Chaos Preview is great. I can get the 4.26 Chaos Demo to run? Help.
                Download ChaosDestructionDemoEditor.Target.cs and ChaosDestructionDemo.Target.cs here

                and copy both into source folder, also make sure to have microsoft visual studio installed 2017 or 2019 before


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                Next Gen Modular City V2, the big pack ever created on marketplace with a strict AAA quality requirements and full support of interiors

                Procedural Building Generator for UE4 MP to power up^up indie devs

                High quality Antenna and Dish Pack Vol 1

                Road Sign Free Assets

                Advanced Race Car Pack

                Comment


                  #9
                  Are ragdolls using Chaos too? There's still an issue that's been around for a while, where timedilation totally messes up ragdoll physics, especially if you're toggling on/off different global timescales.

                  This issue was also present for physics objects, but that appears to be totally fixed in this version.

                  Comment


                    #10
                    Originally posted by b1016103 View Post
                    Will this fork get updated with the official release? 4.26.1-Chaos Preview, 4.26.2-Chaos Preview, etc? Or will it stay at 4.26.0?
                    This build will receives updates down the line

                    Comment


                      #11
                      Thank you Epic
                      Finally something good from 2020
                      Join the Unreal Engine community on Reddit! | Twitter: @ZioYuri78

                      Comment


                        #12
                        I completely agree with Omarito, that would be really nice feature and great time saver.
                        Zorko Sostaric
                        GIS consultant
                        Eagle Technology Group Ltd
                        New Zealand

                        Comment


                          #13
                          This is not a BUG, it may involve performance issues. When I repeatedly adjust the parameters in the GeometryCollection, the engine will freeze or fail to respond after about 20-30s and then return to normal. The number of fragments is very small, about 30, the local computer is equipped with CPUi7-9700k graphics card: GTX3070

                          Comment


                            #14
                            Is there any Chaos cloth sample?

                            Comment


                              #15
                              with chaos to any plan to add a fixed update thread like the unity fixedupdate?

                              Comment

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