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Question by MarcoMeter · Sep 02, 2015 at 09:28 AM · vectrosity

Vectrosity - lines disappear on certain camera angles

@Eric5h5

Hello everybody,

using Vectrosity, on multiple camera transforms the drawn lines disappear.

alt text alt text There is supposed to be a red line drawn on the x-axis. Moving a little to the left renders the line again.

This is how I usually use Vectrosity to instantiate my lines:

 VectorLine xAxisA = new VectorLine("x axis positive", xAxisPoints, null, 1);
 xAxisA.SetColor(xAxisColor);
 xAxisA.drawTransform = go.transform;
 xAxisA.Draw3DAuto();

This problem occurs on each line which I draw like this.

Isn't the call Draw3DAuto() supposed to take care of this?

Thanks in advance!

noline.jpg (232.0 kB)
withline.jpg (235.4 kB)
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avatar image MarcoMeter · Sep 08, 2015 at 10:58 AM 0
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The draw calls are invoked inside the Start() function of a $$anonymous$$onoBehaviour.

Adding a delay of 3 seconds using Invoke(String functionName, float time) gets rid of this issue. But making use of such a delay doesn't feel like the way to go.

Is anybody able to assist?

avatar image Scribe · Sep 08, 2015 at 11:07 AM 0
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Are you using invoke with a delay of 0 seconds, doing so is quite buggy, try 0.001f?

avatar image MarcoMeter · Sep 08, 2015 at 11:36 AM 0
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Using a much smaller time for Invoke causes the x and y axis not to be drawn. So only the blue z axis and the yellow lines get drawn.

These are the two methods which I would like to call inside Start().

avatar image stenfeio · Jan 19, 2017 at 07:03 PM 0
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So how does one go about insuring that the camera faces the lines?

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Answer by MarcoMeter · Sep 15, 2015 at 04:53 PM

With further investigation I figured out that if the Camera doesn't face the VectorLines on Start, the lines won't get properly.

So if the camera initially faces the VectorLines, everything is getting rendered properly.

I exported a simple package which reproduces this behavior: https://drive.google.com/open?id=0B3AXCAD_TuTFYmxFMDZ0TGx6LUU

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