Use a transparent plastic sheet to make a pyramid shape. You can follow the instructions provided in the app to get the correct dimensions.
You only need four items: an old CD or DVD case, a piece of paper, a ruler and marker for drawing the template, a sharp utility knife for cutting, and some tape to assemble the four plastic pieces into a pyramid. holo flash projector app download for android
These apps help you create a "hologram" effect using a simple DIY plastic pyramid placed on your screen. They do not project onto a wall, but create a 3D illusion inside the plastic. Vyomy 3D Hologram Projector Use a transparent plastic sheet to make a pyramid shape
A standard LED flash can only turn on or off; it cannot create colors or shapes. The Truth About "Projector Apps" on Google Play These apps help you create a "hologram" effect
: A phone's LED is a diffuse light source designed for illumination, not a precision light source capable of focusing an image for projection.