MSPhysics 1.0.3 (16 October 2017)

Sofia Oliveira

I assume your speaking of the accelerometer that returns its own acceleration along three axis, am I right?

The main problem were facing now is how to get accelerometer data into SketchUp?
I don't know about Macs, but on PC we use Microsoft Windows API, [Raw Input](http://msdn.microsoft.com/en-us/library/windows/desktop/ms645536(v).

The next question is using this accelerator data to control velocity of the particular body in MSPhysics. Of course, accelerometer data may be used for other purposes, but I assume you want to control body velocity with it. For instance, you move accelerometer to the right, the body moves to right as well.

I'm sorry to say, but current version (0.1.0) of MSPhysics doesn't have a scripting feature, so we'll write the code for SketchyPhysics. I assume you have sketchy physics 3.2 installed on SketchUp 7 or on SketchUp 8.

Before I attempt to write a script, I want you to verify what kind of accelerometer you're using. Perhaps a url to where you bought it would be helpful.

My accelerometer is a MPU9150 which is actually an IMU. My idea is, having a board with the MPU9150 and a Bluetooth Low Energy module (CC5541) that sends the values to a USB/BLE dongle (CC2540). The dongle is recognized by Windows as a Serial Port (COMxx). We master the Bluetooth component but we can’t get the accelerometer data into Sketchcup.

We’ve made a DLL in C# that is able to get data from the IMU (via Bluetooth) and compute a x,y,z position from both accelerometer and gyroscope data. We would like to use this x,y,z coordinates to move a shape inside Sketchcup.

My goal is that Sketchup, with these IMU values, make a movement on an object.

Anton_S

@sofia oliveira said:

We’ve made a DLL in C# that is able to get data from the IMU (via Bluetooth) and compute a x,y,z position from both accelerometer and gyroscope data. We would like to use this x,y,z coordinates to move a shape inside Sketchcup.

My goal is that Sketchup, with these IMU values, make a movement on an object.

Looks like you're half way done already Can you post a function name you're willing to export from the dll (with parameters and return type), plus the dll itself. We could use Ruby DL to extern function into Ruby and then teleport the desired entity according to the [x,y,z] coordinates.

Open SketchyPhysics in SU6, 7, or 8.
Copy this code into the desired body, the body you want to be moved.
Change path and name to the desired dll path.
Change dll function_name to the desired name.


module MyRawInputC
  extend DL;;Importable

  dlload('C;/[path]/[dll_name].dll')
  extern "void func_name(float*)"

  def self.read_accelerometer_pos
    buf = (0.chr*12).to_ptr
    func_name(buf)
    Geom;;Point3d.new(buf.to_a("F3"))
  end
end unless defined?(MyRawInputC)

ontick {
  teleport(MyRawInputC.read_accelerometer_pos)
}

Press play and see if it works.
If you having troubles, upload the dll and show the function name (with params) you want to export and I'll modify the script.

deaneau

@unknownuser said:

Do you know that you have also a Physic engine (Bullet) for Sketchup inside Simfonia ?
(free version is existing)

hello pilou,

not realy free, only a free trail.

dean

Fred_Flintstones

How's it coming along?

Anton_S

@fred_flintstones said:

How's it coming along?

I currently finished enchanting the MSPhysics Scripting API. As well, I finally finished with the body and simulation dialog.

Tested some cloth, just for fun.

The Newton cloth and soft bodies feature is not complete yet. The collisions, body transformation, stiffness and other deformidable body properties are not done. Bullet physics engine seems a promising option, after all. I might migrate to Bullet, but not after version 1.0.0, or else this will never get finished.

And some custom cloth.

I'm left with joints for this version. I did start integrating Newton joint API, but it seems I did it incorrectly.

pibuz

Well this is really awesome! Testing for some clothes! Thanks a lot!

solo

Cloth simulation in SU?

You are on the verge of being a superstar, much anticipation for this feature

Anton_S

@solo said:

Cloth simulation in SU?

You are on the verge of being a superstar, much anticipation for this feature

SU is very powerfull for such purpose.

solo

Imagine to amount of table cloth, curtains and unmade beds in the 3D warehouse soon.

andybot

I've been following this thread with quite some amazement. This is so very impressive, keep up the great work!!

Fred_Flintstones

@anton_s said:

I'm left with joints for this version. I did start integrating Newton joint API, but it seems I did it incorrectly.

Aww that's to bad...But good to see how much you've done... GL with the joints!

Gonthim

Just curious about the release date. I certainly don't want to sound like I'm complaining though. Just dying to get my hands on this ASAP. It looks amazing.

pilou

Missed this advanced one! Cool!

ely862me

Wow.. how could I missed this ?

Anton_S

While rewriting SketchyPhysics I learned very important stuff. I have to make some major changes to this project before its released. Sorry

Gonthim

No problem Anton. Was just curious about an update.

Thanks for all the work. Putting something this complex out in your spare time can't be easy. I'll keep waiting patiently.

pilou

@unknownuser said:

not realy free, only a free trail.

You have a free version with 10 seconds animation + limited number of objects!

Anton_S

Hey guys,

Just as as an update, I'm changing from depending on FFI to using a C++ extension. I'm pretty sure it will make the code plenty times cleaner, and improve performance roughly 50 times. I also, figured that using sketchup animation for this won't be a good choice, as during animation changing scenes wouldn't work, but via timers changing scenes would work like a charm.

Nicat93

Hi. Just to let you know that I am waiting for this plugin to finally create hidden blade from assassins creed B) Which I have wanted already 3 or 4 years

Thank you for your work.

Anton_S

Hello Nicat,

I don't know how I missed this post.

MSPhysics will be designed to have a very stable and full-documented API. My initial purpose of writing this plugin was to have a better scripting API. When I was a user of SP, I was very unimpressed with all the bugs in script and all the inconsistencies. It literally took away my motivation from creating games or scripted models in SP. However, the legacy of SketchyPhysics made me urgent to write something like it.

In SketchyPhysics users came across many problems of not being able to create games, such as not being able to use mouse wheel input and mouse clicks in general. Not to mention that keyboard controls were very unstable because if the SP Control Panel got deactivated the controls would start interacting with SU window, which in turn deactivate SP and activates different tools. This was very annoying. MSPhysics, the Windows version, will have a feature to monitor and block these keyboard controls, mouse clicks, and mouse wheel events. Not only you will know when certain keys are pressed, but also you won't need that 'control panel' dialog taking focus.

Even more amazing, for gaming purposes, the Windows version of MSPhysics will have a feature to set SU viewport fullscreen. I.E when simulation starts viewport could be set fullscreen, and when resets, viewport is set back to original placement. This will make gaming in SketchUp a much better experience.

I'm glad you're still waiting to write a game. I will try to do my best in making progress to this project.

Best regards,
Anton