Spring is almost here so it must be time for the Third Annual Design a Gobo Contest by Apollo. This year I am entering three gobos and in there preparation I really needed to test them before I submitted them. This past fall our department did a production of Charlotte’s Web and the lighting designer needed a solution for clouds with very little throw distance. In the past I had put a boom right next to the cyc and had some success getting them to look good. This time I was not so lucky and went to find a skewed cloud gobo for just such a throw. Fast forward to last week when I saw Apollo’s recent contest announcement and quickly started designing. But if I was going to do this I needed to do some virtual tests to make sure my designs worked.
To create the gobos I used Photoshop, the contest called for a 2.6″ image and I used a 600 dpi resolution. I created what I wanted the clouds to look like then used the transform tool to skew the image on the template I had created. I then saved the files as a jpg.

Large Skewed Clouds From a Boom

Skewed Clouds from a Boom
In order to do the test I needed to use the gobo function that comes in spotlight. Here are the steps to create a custom gobo from my photoshoped images.
1. Create a surface to project the gobo on, in this case I created a 32′ line then extruded it to 18′ high.
2. Place a focus point in the middle of the cyc, make sure you change the standard 5′ high to the middle of the cyc @9′.
3. Insert the appropriate instrument for the throw you have chosen. For this test I used a 36 degree 6′ high three feet from the cyc. Make sure you put the name of your focus area in the instrument information. This will focus the beam of light.

4. To create a custom texture, go the the resource browser and right click. You will get a drop-down menu and first select new resource on (your file name) then select renderworks texture.

Right Click in the resource browser
5. Now you are in the texture screen fill in the name of your gobo and change the sizes to 2″ and the in obj size to 4″

6. In the transparency drop down menu select image projector then find the file you saved in Photo shop.
If its a color gobo you may want to also go to the color drop-down and select filtered image. Chose the use transparency resource. This will use the same file you chose earlier. Then click ok on the dialoug box.

7. The easiest way to insert the gobo is to double click the lighting instrument then click on the light information tab. At the bottom you can select what gobo you want to use. Before you leave this dialog box make sure you select focus the light, by selecting the drop-down for the focus point you created.

8. The final step is to go to a view that best shows off your work like an isometric view. Then change your view to a final renderworks option. Make sure you don’t have the black background selected for some reason it does not work with this option on.

You will need to change your point of view to a 3d view or simply hit the #1 key on the keypad and you will now see your gobos. In this case I put both skewed gobos from the side and a Rachel’s sunset projected from the front. 
The second part of this story is the Rachel’s Sunset Gobo, as the name may imply it was designed by my 9 year old daughter Rachel. She designed the pattern on my iPod touch on the way to school one morning and I liked it so much I decided to enter it into the gobo contest. She used SketckBook MobileX, the free version of a paid painting program by Autodesk. She put the finishing touches on by importing her texture into Light by Digital Film Tools, which uses pre selected textures to enhance photos. I then took the rectangular image and transformed it into a square then cropped it into a circle.

Rachel's Sunset Gobo
So that was a couple ways to create your own gobo and test it out in VectorWorks. All three gobos were uploaed to the Third Annual Design a Gobo Contest this morning. Voting will begin May 5th and go until June 2 so make sure you take the time to check out all the contest entries and vote.











