How to do a gradual colour change?

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pine_needle
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Joined: 27 Nov 2019, 18:21

How to do a gradual colour change?

Post by pine_needle » 28 Nov 2019, 16:01

So I have a layer in my animation where I want an element to gradually change from white to orange. I tried to do this with the Color Replacer effect, thinking I might be able to keyframe the segment where I want this to happen. It didn't work though - what happened was the last frame became orange, but the other frames in the selection remained white instead of the white-to-orange progress I hoped for. I also tried to mess around with the Color Keyer effect but couldn't figure out if it was the right tool for this task.

Any tips? Thanks!

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slowtiger
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Re: How to do a gradual colour change?

Post by slowtiger » 28 Nov 2019, 16:05

All colour-changing FX are key-able - make sure to create a key at the beginning.

Sometimes I'm lazy and do it like this: create a coloured rectangle, change the colour in the next frame, then stretch this 2-frame-clip to the desired length of transition and click interpolate.
TVP 10.0.18, Mac Pro Quadcore 3 GHz, 16 GB RAM, OS 10.11, QT 7.7.3

pine_needle
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Re: How to do a gradual colour change?

Post by pine_needle » 28 Nov 2019, 16:12

Thanks, I will try this.

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Peter Wassink
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Re: How to do a gradual colour change?

Post by Peter Wassink » 28 Nov 2019, 16:40

slowtiger wrote:
28 Nov 2019, 16:05
All colour-changing FX are key-able - make sure to create a key at the beginning.

Sometimes I'm lazy and do it like this: create a coloured rectangle, change the colour in the next frame, then stretch this 2-frame-clip to the desired length of transition and click interpolate.
haha! yes this actually works fine in most cases.

you could also do it with two layers and fade out the top one

as always... many roads to Rome in TVPaint

but in the rare case you need some dynamic control over the transition, use the color adjust FX with adjusted speedprofile ( although TVP being 8-bit, there is not really too much room for that, only 256 steps )
Peter Wassink - 2D animator
• PC: Win10/64 Home - Xeon Quadcore E5410@2.33Ghz - 12Gb RAM
• laptop: Win10/64 Pro - i7-4600@2.1 GHz - 8Gb RAM

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slowtiger
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Re: How to do a gradual colour change?

Post by slowtiger » 28 Nov 2019, 18:08

Peter Wassink wrote:
28 Nov 2019, 16:40
only 256 steps )
Yes, but because it's over time nobody will notice - no banding!
TVP 10.0.18, Mac Pro Quadcore 3 GHz, 16 GB RAM, OS 10.11, QT 7.7.3

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