Hollywood forums

Note: This is an archived post that was originally sent to the Hollywood mailing list on Tue, 26 Jan 2010 23:10:54 -0000

Hi! I've two questions tonaight

1 - I've a width = x height = y image with alpha channel... If I display that image atfter an image bigger than it since alpha channel was trasparent I can see still the old image in the alpha channel(around was celared by a clear routine)... So the question...there's a way to change the color of the alpha channel? I've to apply a mask or something similar? Or there's a simpler way? Thank you!

2 - To me(and not only to me...) seems tht WOS compile of hollywood programs wasnt so fast...only an impression or the WOS player wasnt so fast?

Thank all!

Simone

Note: This is an archived post that was originally sent to the Hollywood mailing list on Thu, 28 Jan 2010 22:54:51 +0100

Hi! I've two questions tonaight

1 - I've a width = x height = y image with alpha channel... If I display that image atfter an image bigger than it since alpha channel was trasparent I can see still the old image in the alpha channel(around was celared by a clear routine)... So the question...there's a way to change the color of the alpha channel?

There's no such thing as "the color of the alpha channel". Alpha channel is a transparency channels which simply keeps information about the transparency for each pixel. It doesn't have any color information in it. You might need to erase the background. If you display an image with alpha channel a hundred times at the same location, it will always look a little bit different because the background will shine through and that very background will change with every drawing operation.

I've to apply a mask or something similar? Or there's a simpler way? Thank you!

2 - To me(and not only to me...) seems tht WOS compile of hollywood programs wasnt so fast...only an impression or the WOS player wasnt so fast?

Well, the WarpOS is really only faster for math operations like rotating, scaling etc. This can be done by the PPC. Everything that requires the host OS runs still in 68k and is kind of slow then.