observe from inside of object

Any question about the main GUI application (frontend)
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Lucien
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Joined: Wed Jun 08, 2016 7:51 am

observe from inside of object

Post by Lucien »

Is it possible in CloudCompare to put the point of view in side of a closed object to observe it from inside?
daniel
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Re: observe from inside of object

Post by daniel »

Yes, but you have to switch to perspective mode. Then either you modify the viewport with the mouse (or better the 3D mouse) or you set the right position with the Camera parameters dialog.
Daniel, CloudCompare admin
Lucien
Posts: 37
Joined: Wed Jun 08, 2016 7:51 am

Re: observe from inside of object

Post by Lucien »

I picked a point from inside(perspective mode and camera center inside).

But when I zoomed out, I found that the picked point was in fact a outside point
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daniel
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Re: observe from inside of object

Post by daniel »

Are you still using an old version or is it with the 2.8.beta (trunk) version?

There was several glitches that were fixed recently.

Another test (if you did test with the latest version): you can tell CC to perform the picking with OpenGL (see the main options). In this case, does it change the behavior?
Daniel, CloudCompare admin
Lucien
Posts: 37
Joined: Wed Jun 08, 2016 7:51 am

Re: observe from inside of object

Post by Lucien »

I didn't find the OpenGL option in v2.8beta
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daniel
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Re: observe from inside of object

Post by daniel »

It's the 'never' option of 'auto compute octree for picking'. You can either use the octree (in which case CC performs the picking procedure) otherwise the GPU driver is used.

Can you compare both modes?
Daniel, CloudCompare admin
Lucien
Posts: 37
Joined: Wed Jun 08, 2016 7:51 am

Re: observe from inside of object

Post by Lucien »

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There is apparently no difference in OpenGL mode. I picked a point from inside but it's in fact the closest point of outside.
daniel
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Re: observe from inside of object

Post by daniel »

But where you actually using the octree/cpu mode before? (as the 'never' option was already selected on your snapshot).

And if both versions (CC or the GPU driver) give the same result, I'm not sure what to think...
Daniel, CloudCompare admin
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