Examples: Geometry => BufferGeometry

[WestLangley]

I modified webgl_trails.html slightly, but the other examples should be visually identical.

I am not able to test webvr_vive_dragging.html, but the changes are minimal.

[WestLangley]

Yikes! Both versions of webgl_trails are broken on macOS Safari -- at least on my machine. Looks like a strobe light... OK on macOS Chrome.

[looeee]

The examples now look very different for me, on windows 10. Tested with Chrome and Firefox. Is this intentional?

OLD:

NEW:

[WestLangley]

Yes, it was intentional to make the dots bigger and decrease the number of lines generated so the trails are more visible.

I will change it there is an objection.

[Mugen87]

Both versions of webgl_trails are broken on macOS Safari

Same here. Looks like setting preserveDrawingBuffer to true causes the visual error.

[looeee]

The old version was beautiful, the new one not so much, although it does arguably demonstrate what's happening more clearly. I'm not going to complain if the change is kept, but I do prefer the old one.

[mrdoob]

The old version was beautiful, the new one not so much

I like both versions. But I'll probably update the example to something more... demonstrative?

[mrdoob]

Thanks!

[mrdoob]

@grorg @kenrussell Any ideas why this example blinks in Safari?
https://rawgit.com/mrdoob/three.js/dev/examples/webgl_trails.html

[grorg]

Ouch! I don't know what's up.

I filed: https://bugs.webkit.org/show_bug.cgi?id=183151

I guess I broke preserveDrawingBuffer :(