Simulate Holographic Projection

Demos and projects
1

Hi~
I create a simulate holographic projection effect this weekends.https://playground.babylonjs.com/#W6EUYR#22 。It is very hard to write a long PG in one page, wishing PG support multi-pages!
Left gizmo in pic can control the fake project point which looks like a projector。
Right gizmo in pic can change the project area。


There are many bugs in this PG which I don’t konw how to fix。
Like alphaMode Add, when alpha < 0.01 (or other value) mesh look like discard, when I increase alpha, final color is from none to blue to pink to white, I don’t know why, you can slider Line Alpha to reproduce it.

image
image1703×1113 140 KB

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2

I use two ping-pang map lifeMap and positionMap to update point information which use two drawcalls. Could babylonjs support render multi-input and multi-ouput in one drawcall?

cc anyone :grin:

3

this is so cool !!!

4

Mind-blowing!! :exploding_head:

5

It’s a cool idea, but it would be possible to do exactly the opposite so that the scanner creates an object from dots!? That would be awesome!

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