Projecting on 2 walls with 1 projector

vvvv beta question
1

Hi Guys,

I’m a newbie to VVVV, and it’s great.
I’m working on a school project where I need to project on 2 walls (120 degrees) and I only have 1 projector.
I tried to use use 2 homography blocks - 1 per each wall.
then I connected them together to a projector. the problem is that I get distortion at the connection point between the two screens. I uploaded a screenshot and my patch.
I’ll appreciate your input.

Thanks!!!

yael_patch - 2 blocks.v4p (25.4 kB)

2

it only looks like this, when your edge points are wrong. the good thing with homography is, when the perspective transformation is correct, the edges will match. this is a nice indicator of whether you set it up correctly. (let us all praise mathematics!)