examples code about artoolkit5-js HOT 8 OPEN

@kalwalt @MikiDi I pushed a very detailed example on how to use this library with Three.js here:

https://github.com/andypotato/artoolkit5-js-demo/

Also I have a bit of time now so I will implement the remaining NFT features and add a couple of demos.

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Now that NFT markers are available more example code should be created. I'll add some examples to the demo repository but other contributions are welcome.

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@andypotato i created this gist as a starting point, if you have other resources let me know.

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@kalwalt @MikiDi I have updated the documentation to better describe the interface. Examples will follow!

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@andypotato great! Thank you very much!

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Thank you @andypotato i will try it! and can't wait for NFT .... 😄

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I just had a look at the demo repository because I have troubles with getting the transformation matrices right in portrait orientation.

The demo project unfortunately suffers from the same problem:
andypotato/artoolkit5-js-demo#29 (comment)

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I found a workaround which looks like this

// on every resize
      if(screenRatio < 1) {
        arController.orientation = 'portrait'
        mat4.mul(projectionMatrix, correction, cameraMatrix)
      } else {
        arController.orientation = 'landscape'
        mat4.copy(projectionMatrix, cameraMatrix)
      }

where the correction appied in case of portrait orientation is a 90 degree rotation around Z

  let correction = mat4.create()
  mat4.fromZRotation(correction, Math.PI / 2)

I think that compensates the rotation made when copying into the heap here:

But yea, it adds to the complexity of this already quite complex topic of ar.
Shouldn't artoolkit be able to natively handle all kinds of resolutions from 640x480 to 480x640 and beyond?

Thank you for all your sweat and thoughts that have flown into this.

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