How to do "Gradient Map" in COP?

Forums Technical Discussion How to do "Gradient Map" in COP?

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raincole: Member; 692 posts; Joined: Aug. 2019; Offline

April 26, 2022 8:09 p.m.

In Photoshop and Substance Designer, one can map a grayscale image to a color ramp. What's the same function in Houdini's COP? I've found Color Map COP but it seems quite different.


jsmack: Member; 8177 posts; Joined: Sept. 2011; Offline

April 26, 2022 8:41 p.m.

vopcop2filter for everything, put a snippet inside and write vex


mestela: Member; 1854 posts; Joined: May 2006; Offline

April 26, 2022 8:44 p.m.

Lookup COP, change lut source to 'colour ramp parameter'.

http://www.tokeru.com/cgwiki [www.tokeru.com]
https://www.patreon.com/mattestela [www.patreon.com]


raincole: Member; 692 posts; Joined: Aug. 2019; Offline

April 26, 2022 8:47 p.m.

mestela
Lookup COP

Oh thank you. Didn't know it accepts a color ramp parameter.


jsmack: Member; 8177 posts; Joined: Sept. 2011; Offline

April 26, 2022 9:22 p.m.

raincole
mestela
Lookup COP

Oh thank you. Didn't know it accepts a color ramp parameter.

Yeah, is that new? I thought it was just chops or a LUT file.


mestela: Member; 1854 posts; Joined: May 2006; Offline

April 26, 2022 9:43 p.m.

Dunno, I just had to do this recently and stumbled across it.

(edit)

Been there since at least 17 apparently. It's annoyingly hidden tho, grr.

https://www.sidefx.com/docs/houdini17.0/nodes/cop2/lookup.html [www.sidefx.com]

Edited by mestela - April 26, 2022 21:47:20

http://www.tokeru.com/cgwiki [www.tokeru.com]
https://www.patreon.com/mattestela [www.patreon.com]

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