Next step was to load the resulting picture in Photoshop and do some selection. Note the little artifacts on the resulting picture, due to the poor conditions of this tutorial, and to the reflective nature of the surfaces. MadMapper also loads it automatically as a background in the preview output: Then I saved the picture somewhere on my drive. I took the opportunity to make myself a cocktail, while waiting for the final result to be processed. Since the whole process is automated (remember ? just one click …), What the program does is projecting a bunch of white patterns, aka Structured Lighting.

I clicked “Capture”, which had the effect of starting the automated procedure. Once plugged, MadMapper shows a preview from your DSLR: It all happened in one click (which is good !)… Then started the Spacial Scanner function. Ambient light is bad, it troubles the calculations.

Under-exposed pictures are better, you get less artifacts. These settings were the best for my scene, yours might differ a bit.Īccording to my tests, white background is not ideal because it reflects too much light.

– 1/15s shutter speed (it has to be lower that 1/60, your projector’s refresh rate) I set it up to shoot the scene, a little bit wider, to capture the full output of the projector. Placed my DSLR around (not necessarily exactly on the same axis as the projector, a 45 degrees axis might be fine as well).įYI, my DSLR is a Canon EOS 500D with a Sigma lens. Noted the resolution, which was 1024 (?!) by 768 pixels.īecause I’m a bit of a cowboy, I installed it on the side (to make things needlessly more complicated, and to prove that the equations work even in extreme situations), being sure it would “shoot” the entire dwarf: (here, a Acer K11, 300 lumens, possibly one of the cheapest unit around) It was done in less that 10 minutes, this might keep you motivated Here’s what the final mapping will look like (a radio-active garden gnome): Sometimes, being kitsch feels refreshing (esp. – a Canon DSLR (compatibility list on MadMapper website)

To actually capture, pixel by pixel, what your projector “sees”. The Spacial Scanner allows you to use your projector as a scanner, So you’ve heard of MadMapper Spacial Scanner function,īut you don’t know excatly what it is, or even how to use it.

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