yota Posted November 27, 2006 Share Posted November 27, 2006 Hi i'm really new to houdini ... i'm trying to control sprite scale and alpha using $CA passed through a ramp in a color pop. but when i try to create an hda i didn't realize how to insert the ramp in the parameters in the type properties to have some control on it. It is possible to do that ? thanks ps:sorry for my poor english Quote Link to comment Share on other sites More sharing options...
watson Posted November 28, 2006 Share Posted November 28, 2006 Right click on hda, Type Properties- Parameters Tab, drag desired params from color pop to Parameter Tab. I hope thats what you're looking for... cheers Quote Link to comment Share on other sites More sharing options...
yota Posted November 28, 2006 Author Share Posted November 28, 2006 Right click on hda, Type Properties- Parameters Tab, drag desired params from color pop to Parameter Tab. I hope thats what you're looking for... cheers thanks for the reply but what i din't realize is how to use a ramp from a color pop in hda. I can drag parameters like Hue,Sat,Alpha and lookup but i can't drag the ramp handles. I need the handles because im trying to control scale and opacity via alpha ramp. maybe it's the wrong method to use i'm really new to houdini Quote Link to comment Share on other sites More sharing options...
lisux Posted November 29, 2006 Share Posted November 29, 2006 thanks for the reply but what i din't realize is how to use a ramp from a color pop in hda.I can drag parameters like Hue,Sat,Alpha and lookup but i can't drag the ramp handles. I need the handles because im trying to control scale and opacity via alpha ramp. maybe it's the wrong method to use i'm really new to houdini I think that you can't add the ramp widget to an HDA ui. One option is to use the ram editor, redit, save the ramp and use it as a texture in your HDA. http://www.sidefx.com/index.php?option=com...;highlight=ramp Or use a COP image, and then in your COP network use the ramp COP: http://www.sidefx.com/index.php?option=com...;highlight=ramp hope this helps. Quote Link to comment Share on other sites More sharing options...
yota Posted November 29, 2006 Author Share Posted November 29, 2006 I think that you can't add the ramp widget to an HDA ui.One option is to use the ram editor, redit, save the ramp and use it as a texture in your HDA. http://www.sidefx.com/index.php?option=com...;highlight=ramp Or use a COP image, and then in your COP network use the ramp COP: http://www.sidefx.com/index.php?option=com...;highlight=ramp hope this helps. thanks a lot. the ramp cop was the right way for me. Quote Link to comment Share on other sites More sharing options...
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