Well, the trick I discovered was you need at least 15% overlap, the more the better to get a better blend. That is a lot of image info you are going to lose.
From my experience this is a limit both on the projector and on the plugin.
First of all the better the contrast ratio of the projectors the better the result of the blend as there will be less “sum” light, so to say… in an hypothetical “perfect projector” where black is completely black you would have a perfect blend, that is not the case in this universe …
Right now you can either set a gamma which is good for plain white/much light or one which is good for darker colors.
On the plugin side it would be nice to have a “per pixel” edge blend fx that will calculate the necessary gamma value for each overlapped pixel, let s say a dynamic gamma calculator.
Anyway What westbam says applies, the wider the soft edge the better the result, although I think that it doesn t really improve the effects, it just tricks the eye.
Disclaimer: this is all empiric assumption and no animals have been harmed
but at the moment the blending problem is more intense than the
usual “low light problem (projector can`t display a real black)”
please take a look on the attached images.
I think that the former applies, you can see clearly see in the second picture that the 2 projectors are not color/gamma matching, and the softedge is way too narrow, do it minimum 3 times wider.
i think you have to check gamma per color with similar picture like thathttps://vvvv.org/sites/default/files/imagecache/large/images/00_TESTBILD.png
place it so that your softedge area cross all color
