January 28, 2005, 2:29pm
I desperately need to change the brightness/contrast of the Video Texture node.
I just realised that the problem is known alreay but unfortunately I have no
clue how to program a freeframe.dll.
Has anyone a .dll that could to the job?
January 28, 2005, 3:43pm
have you looked through all of those available:
depending on the type of your graphicscard it would be even easier to change the contrast of a texture via a pixelshader. if your graphicscard supports shaders it would be just a 2liner. which card do you have?
January 29, 2005, 3:15pm
I have a ATI Radeon 9600.
Where would I find that two liner?
January 29, 2005, 5:08pm
seems you are lucky. your card should understand pixelshaders.
attached you find an effect that should allow you to change contrast on a texture. (cannot test it right now on my laptop!)
if you’ve never worked with effects;
put Contrast.fx in your /effects directory
press Alt+E (or start vvvv)
create the node: Contrast (EX9.Effect)
create the node: XFile (EX9 Load)
load the quad.x (from girlpower/xfiles)
connect xfile to Contrast
connect your videotexture to Contrast
use the ContrastPin to change contrast
hope it works.
January 30, 2005, 12:01am
should be time for a color transform tutorial…
January 30, 2005, 12:22am
It doesn’t seem to work. If I do it like you described, nothing shows up on my machine…
If you get a chance can you test it?
January 31, 2005, 3:36pm
that could not work. try attached. put both .v4p and …fx in the same directory!
colortransform.rar (2.2 kB)
January 31, 2005, 10:39pm
If you are trying to control the brightness/contrast of a video capture card, another solution would be to adjust the brightness/contrast in the driver properies.