Hexagon Shapes in Mapping
kdobbe last edited by
Hi all: I am attempting to create a simple hexagon shape in mapping without a 3D shift. I have created a simple rectangle input using a grid output (using the grid division of 2x1) to form the hexagon. Beautiful!HOWEVER, I have not been able to find a simple way to create a simple hex shape that does not distort the image via the central axis. I am look for a hex that simply places the regular video-in feed on a hex-stage. I used simple masking and there are issues when I crossfade between a hex stage created using the grid and one using a traditional rectangle with masks (the full screen image flashes momentarily before projecting only the hex area) (in the performance this will flash other areas not meant to be projected on.Image 1 below is the simple grid hex (with axis distortion)Image 2 below is the mask being used to create the non-distorted video inImage 3 below is the desired final hex outCan this be done without using masks?It would be great to have a choice of shapes be the current: rectangle, triangle, circle, and add "**polygon-composite**" (with the option to select the number of sides). At this point the composite is only four-sided unless I am missing something.Thanks in advance...
Hi, this seems like something I should recreate on my test machine.If you could create a 'bug report' here: http://troikatronix.com/support/isadora/I will happily investigate the white flash.
As far as a hex shape without distortion, I believe you really want to use the composite mapper (complex mask in earlier pre-releases)
and add points to a rect in the input, and adjust into hex.. If you have a Hex image or video source to feed the mapper that can help for alignment.If you make changes on the input side , it masks the image, and will not distort,Any distortion must be done on the output side.
mark last edited by
Dear @kdobe,To ensure that the shape is not distorted, you need to use the composite mask mode as @DusX indicated. Attached is a picture I whipped up a moment ago. I added a rectangle to the composite slice, and then added two points to it by option-clicking. Then moved to points to create a hexagon.Hope that helps,Mark
kdobbe last edited by
Yes! Did nor realize the option-clicking. Thank you both...