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    MSPhysics 1.0.3 (16 October 2017)

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    • robintR Offline
      robint
      last edited by

      Hi Anton, installed 0.9.9 and restarted SU
      but its screwed up my model?
      It falls downwards and I cant get the static floor to work as before, also the script stopped working
      Did I do a corrupt installation?

      Should I have deleted 0.9.8 first - you didnt say?
      I assumed it would overwrite and update itself
      Where to go? delete and start fresh installation or go back to 0.9.8?

      What to do? 😳

      Robin


      falling block7.skp

      As one door closes another one slams in your face

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      • A Offline
        Anton_S
        last edited by

        Tez,

        In the Sound tab of the MSPhysics UI, whenever a sound is added, a piece of code for playing the sounds is displayed below. For your case, after you add the sound to the MSPhysics UI, the code for playing it would be:

        onTouch { |toucher, position, normal, force, speed|
          simulation.play_sound("Sound1")
        }
        

        You can also refer to this scripting documentation link for playing 3D sounds: http://www.rubydoc.info/github/AntonSynytsia/MSPhysics/master/file/Overview.md#Music___Sound

        Anton

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        • A Offline
          Anton_S
          last edited by

          Robin,

          I assume the script you talk about is the controllable sphere thingy. There has been some scripting changes and the documentation for the controllable sphere is updated. For your case, you will have to replace the add_force2 function with the add_force function.

          Now, I don't know how the static floor behaved previously. Basing on the model you posted, everything is working fine. I don't see any issues.

          If you want to revert to on original version, you may always refer to the instructions on the homepage.

          Anton

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          • robintR Offline
            robint
            last edited by

            Very strange Anton, I removed the sphere from the model to avaoid confusion , but on mine Falling block 7 the whole model falls. I must assume I got a corrupt installation, so will start again afresh back to 0.9.8 and fb 6

            Cheers

            Robin

            As one door closes another one slams in your face

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            • robintR Offline
              robint
              last edited by

              I am pleased to report, that after a tedious uninstall of msp and a clean instal of 0.9.9, everything now seems to work ok

              Overwriting existing files looks unwise and it was severely screwed up

              I would advise users

              Cheers

              Robin

              PS I made the block and floor out of tungsten carbide, so the block didnt penetrate AKAIK, but bounces as expected


              falling block8.skp

              As one door closes another one slams in your face

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              • F Offline
                faust07
                last edited by

                Thanks Anton for making MSPhysics better and better. First impression of running an old model with Curvy Pistons with version 0.9.9 - all moves but some objects move backwards... - I will test in the next days what I must change to get the desired results.
                Merry Christmas to all friends of SketchUp, physics and animation.


                XmasOnIce_fr98.jpg


                Merry_Christmas_2016.jpg

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                • robintR Offline
                  robint
                  last edited by

                  Hi MSP's

                  Herewith my mortar gun model, run and tap space bar, adjust azimuth with rotate tool on all the gun. Adjust charge by piston rate

                  I thought I might add display of distance to first landing (just like a real gun spotter?


                  mortar.skp

                  As one door closes another one slams in your face

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                  • S Offline
                    SketchyPhysicsNutt
                    last edited by

                    Hi robint your original model falling block8 and script anton
                    helped u with i found very interesting thx.

                    I set block material to gold / elasticity to 2.00 and got a
                    bouncing ball i like the affect max elasticity gives u.

                    Gif starts on 2nd bounce then breaks free on 3rd and keeps bouncing

                    http://s24.postimg.org/41779b5dx/bounce.gif

                    Tez

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                    • robintR Offline
                      robint
                      last edited by

                      Indeed, it becomes quite addictive I found. I wish I knew more about ruby script
                      I want to xfer the script to my mortar gun, try to get muzzle velocity, distance to target and time of flight

                      cheers, have fun

                      Robin

                      As one door closes another one slams in your face

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                      • S Offline
                        SketchyPhysicsNutt
                        last edited by

                        Im no script monkey as well wish i was....but im experimenting connecting two servo's for swivel and tilt with your mortar gun model no luck yet πŸ˜„

                        Antons original script has come in handy with my trebuchet/catapult models and projectiles

                        THX Robin happy new year

                        Tez

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                        • robintR Offline
                          robint
                          last edited by

                          Yes I tried that, but the outer gun barrel has to be made up of 4 flat slabs grouped together and made static which is why it wont move, else the ball just falls through it

                          only way I found was to use the rotate tool before hitting go

                          not very elegant

                          perhaps someone else will pitch in

                          Cheers

                          Robin

                          As one door closes another one slams in your face

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                          • robintR Offline
                            robint
                            last edited by

                            Anyone know how to put sound into script eg a sound wav called "cannon" to be played when I press space bar (which also fires the cannon ball

                            I put the sound byte into the UI sound tab, but nothing happens? WOTODO?

                            Robin

                            As one door closes another one slams in your face

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                            • P Offline
                              PituPhysics
                              last edited by

                              @robint said:

                              Anyone know how to put sound into script eg a sound wav called "cannon" to be played when I press space bar (which also fires the cannon ball

                              I put the sound byte into the UI sound tab, but nothing happens? WOTODO?

                              Robin

                              Hello Robin. I wrote a script to display the distance of bullet and target, the time of flight and play the sound. But the "Update Timestep" change it to Normal 1/60 on the Simulation tab.

                              Try this:

                              mortar 2.skp

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                              • S Offline
                                SketchyPhysicsNutt
                                last edited by

                                Great script inside PituPhysics 'Distance and time of flight' perfect for projectiles

                                thx
                                Tez

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                                • robintR Offline
                                  robint
                                  last edited by

                                  Hi PP

                                  some good stuff there, doesnt make the sound?

                                  take a look at my falling block as it uses the ontouch procedure to capture the distance at the moment of first impact

                                  Another way might be to insert some magnetism into the ball, floor and target so that the missile sticks to its first landing place, as with a real mortar

                                  Have tried to use magnetism in UI but doesnt seem to have any effect? 😲

                                  What am I doing wrong?

                                  Robin


                                  mortar 3.skp

                                  As one door closes another one slams in your face

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                                  • P Offline
                                    PituPhysics
                                    last edited by

                                    I made more models to be more opportunities.

                                    1.) Frozen: mortar 4.1.skp

                                    2.) Hide: mortar 4.2.skp

                                    3.) Simulation pause: mortar 4.3.skp

                                    And magnet test:magnet.skp

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                                    • robintR Offline
                                      robint
                                      last edited by

                                      Hi PP

                                      tried your magnet and I am baffled as to why its so very slow, <2fps. tried everything to speed it up. Sketchy physic was much faster? I made ther executive balls desktop toy by putting all the balls as pendulums in a frame and colliding. It was fast and realistic?

                                      Robin

                                      As one door closes another one slams in your face

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                                      • robintR Offline
                                        robint
                                        last edited by

                                        Even stranger, I managed to get my balls to clang together at 30 fps, but unable to simulate repulsion even with negative magnet values? I notice that perhaps magnet is a wrong term as it behave more like gravity between two masses (hence no repulsion effect)

                                        Universal gravitation equation

                                        F = GMm/R2
                                        

                                        where

                                        F is the force of attraction between two objects in newtons (N)
                                        G is the Universal Gravitational Constant = 6.674*10βˆ’11 N-m2/kg2
                                        M and m are the masses of the two objects in kilograms (kg)
                                        R is the separation in meters (m) between the objects, as measured from their centers of mass
                                        

                                        notice how the ball is attracted to the target even though the target has no magnetic force

                                        for example

                                        Robin


                                        my magnetic balls 1.skp

                                        As one door closes another one slams in your face

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                                        • robintR Offline
                                          robint
                                          last edited by

                                          Hi PP

                                          Got as far as 4.3 and it certainly is the cats whiskers, like the disappering effect in 4.2, all we need is a little pop up explosion (still no sound on mine?)

                                          I dont understand what is affecting the fps so drastically? It goes from 30fps down to 4 or less

                                          Robin

                                          As one door closes another one slams in your face

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                                          • robintR Offline
                                            robint
                                            last edited by

                                            Playing with real shells. Wonder how I can get the nose pointing along the path? hmmm ❓ notice the fps is 27, yet on some of the models its very slow 2fps


                                            mortar 5.1.skp

                                            As one door closes another one slams in your face

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