In conjunction with photo editing software they help you map out plan and design according to the difference in elevations bumps and gaps in the wall.
Use a projector on tan concrete wall.
It is not 100 necessary but it allows the wall to reflect the light more efficiently.
Using an outdoor wall as a projector screen.
Start at 6500k and go up until the colors look decent.
I have a 92 pj screen that has 2 slideable brackets at either end that can hold 4 screws in each bracket but the screws can not be any thicker than 6mm or the wont go through the holes i think the whole screen weighs about 13kg.
Once you buy all the materials it should cost less than 50 for the paints needed.
A quart of screen paint on amazon can cost about half the amount as an actual projector screen.
Some use them for only a certain complicated section of their painting while others make the whole mural using them.
How do i mount a projector screen to a concrete wall.
Make this portable screen on the cheap that stashes away in a closet.
This is a permanent solution as it will involve painting the wall so i only suggest you do so if you are happy to proceed on this basis.
Using the wall first will give you an idea of how big of a screen to get.
But there is another option available which is to use an outdoor wall.
The best solution for using a projector on a wall is to paint the wall with a projector screen paint.
The issue with this type of paint is that it s not cheap.