Pixel based gobo record control format
View Patent ↗A special record format used for commanding light pattern shapes and addressable light pattern shape generator. The command format includes a first part which commands a specified gobo and second parts which command the characteristics of that gobo. The gobo is formed by making a default gobo based on the type and modifying that default gobo to fit the characteristics.
1. A method, comprising:
defining a first gobo for use in a lighting system, which is used to shape an outer perimeter of a projected light that is projected by the lighting system;
at a first time, using said first gobo for shaping the outer perimeter of the projected light;
changing the perspective of said first gobo, at a second time, to form a second gobo, which represents the way the first gobo would look if viewed from a different perspective than said first gobo, where said second gobo has a different outer shape than said first gobo; and
using said second gobo to shape the outer perimeter of the projected light, at the second time.
2. A method as in claim 1 , wherein said changing the perspective comprises changing the rotation of the gobo in the z-axis direction, where the z-axis is an axis which is substantially perpendicular to a plane on which the light is projected.
3. A method as in claim 1 , wherein said changing the perspective comprises changing the gobo in a way such that a top of the gobo looks smaller in perspective and a bottom of the gobo looks larger in perspective.
4. A method as in claim 1 , wherein said changing the perspective comprises calculating in advance what the gobo would look like at specific locations, and using the information which was calculated in advance.
5. A system, comprising:
a light controlling console, which produces a plurality of output signals which represent a gobo for use in shaping the perimeter of a projected light, said light controlling console outputting signals representing a first perspective view of a first gobo at a first time, and second signals representing a second perspective view of said first gobo at a second time, where said second perspective view has a different overall outer shape than said first perspective view.
6. A system as in claim 5 , wherein said second perspective view is a view where the gobo has been changed in a z-axis direction, where the z-axis is an axis which is substantially perpendicular to a plane of projection of the light.
7. A system as in claim 5 , further comprising at least one digitally-controlled light, coupled to said console and receiving said output signals therefrom, and producing a light projection that is based on said output signals.
8. A system as in claim 5 , wherein said light controlling console stores a plurality of views of the gobo at different perspectives, that have been stored in advance.
9. A system as in claim 5 , wherein said light controlling console produces a matrix indicative of said output signal.
10. A method, comprising:
defining an electronic file to be used by a digital light to shape an outer shape of its projection according to an image within the electronic file;
rotating the image within the signal relative to a plane of the projection to change a perspective of the image; and
during said rotating, changing the shape of the outer shape of the projection.
11. A method as in claim 9 , wherein said signal is a matrix signal.
12. A method as in claim 10 , wherein said rotating comprises obtaining precalculated versions of the image which have been rotated.