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ping pong ball

Posted: Fri, 17th Jul 2009, 9:58pm

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joe billy

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a simple, white, realistic ping pong ball that you can control where it goes
Posted: Fri, 17th Jul 2009, 11:41pm

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Axeman

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This wouldn't really be do-able as a preset. You could import a photo of a ping pong ball quite easily, and animate that, but trying to create a ping ping ball as a neon light, laser, particle effect, muzzle flash, lens flare or lightning bolt doesn't seem practical, and those are all the engines you have to create presets with.

I'd recommend photographing a ping pong ball, and create an alpha channel that masks everything outside the ball in an image editor such as Photoshop or GIMP, then import and animate that.
Posted: Sat, 18th Jul 2009, 8:29pm

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joe billy

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Sooo... whats an alpha channel and how do i make one in photoshop?
Posted: Sat, 18th Jul 2009, 8:49pm

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Goldenjabba

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An alpha channel is a transparent layer, much like a piece of glass. So If you took a picture of the pingpong ball, you can take a tool such as the eraser, pen or paths tool (I use GIMP, not sure about photoshop) and select the ping pong ball. Then invert the selection and delete the background. Make sure the only layer is the ping pong ball. There should be all black and grey checkers all over the screen, except where the ping pong ball is. Now save that as a .tif file, then import and animate in an FXhome product. NOTE: You only have to save it as a TIF file If you have Effects Lab, if you own composite lab or visionlab, the layer won't go transparent, so just save it as a compatible file.

I hope that clears things up a little, feel free to ask anymore questions smile
Posted: Tue, 21st Jul 2009, 1:53pm

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joe billy

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Hmm... I followed your instructions and ended up with only one layer witch was the ping pong ball over a transparent background (grey and white checkers), just like you said. I saved it as a TIFF or .tif file and imported it into effects lab pro, but when i did that, it appeared as a ping pong ball over a white background. I tried this several times and the same thing happened. Does anyone know how to fix this? i have Adobe Photoshop Elements on a Mac
Posted: Wed, 22nd Jul 2009, 4:35am

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Goldenjabba

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I think you import it as an image stream, just put the image in its on folder, then import that folder. That should do it. Sorry, forgot to mention that!
Posted: Wed, 22nd Jul 2009, 6:03am

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Axeman

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It shouldn't need to be an image stream, as I think its only a single image. Importing a single image as an image stream will only cause problems.

As to the alpha channel, I don't have Elements, but I do have Photoshop. I can offer instructions, but I don't know how much the commands will differ between Elements and the full version.

Create a new file in PSE. Then open your ping pong ball image. Copy and paste the ping pong ball into the new file you created. You should now have two layers: the background, and the ping pong ball (which we will call layer 1). Erase everything in layer one except the ping ping ball. Delete the background layer. Save the image as a .png.

Now you should be able to import that straight into EffectsLab with transparency intact.

The TIFF format has alpha options believe, which may have been turned off, thus resulting in the white background you ran into. PNG is simpler, and just as nice a format to work with.
Posted: Wed, 22nd Jul 2009, 4:34pm

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Goldenjabba

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I found the image streams worked fine for me, but the other way axeman suggested is probably easier.
Posted: Wed, 22nd Jul 2009, 11:17pm

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Axeman

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If you import a single image as an image stream, you can't adjust the length. It is one frame long. You can adjust the speed to cheat it longer, but the crop tool won't do a thing. That's why I suggest against importing a single image as an image stream.
Posted: Wed, 29th Jul 2009, 11:44pm

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joe billy

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Thanks guys! i have yet to try it out!
Posted: Fri, 8th Jul 2011, 9:09pm

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crazyeights

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i dont know if you will see this but if you never got your picture i made a preset wtih the particle system that works pretty good.