[EFFECT] Curves

Abstract implementation of tonal curves for RGB, Red, Green and Blue channels with three fixed nodes: highlights, midtones and shadows. Can be used to adjust overall contrast or create advanced color filters.

<img src="http://www.prr-art.com/things/construct/curves.gif" border="0">

Download Curves effect

Parameters:

• RGB Highlights : Positive values brighten overall highlights, negative values darken overall highlights.
• RGB Midtones : Positive values brighten overall midtones, negative values darken overall midtones.
• RGB Shadows : Positive values brighten overall shadows, negative values darken overall shadows.

• R Highlights : Positive values tint highlights red, negative values tint highlights cyan.
• R Midtones : Positive values tint midtones red, negative values tint midtones cyan.
• R Shadows : Positive values tint shadows red, negative values tint shadows cyan.

• G Highlights : Positive values tint highlights green, negative values tint highlights magenta.
• G Midtones : Positive values tint midtones green, negative values tint midtones magenta.
• G Shadows : Positive values tint shadows green, negative values tint shadows magenta.

• B Highlights : Positive values tint highlights blue, negative values tint highlights yellow.
• B Midtones : Positive values tint midtones blue, negative values tint midtones yellow.
• B Shadows : Positive values tint shadows blue, negative values tint shadows yellow.

Don't let the number of parameters scare you, it's simpler than it looks and it's very versatile.

That's awesome,true color correction, nice one Animmaniac

That is amazing. Well done and thank you!

I really liked this effects. But it's really weird. If I set values on startup they effects as normal. But if I change the values on runtime(for day/night cycle) than It effects very odd. I add 100 to value, but it effects like 10000. Or I set rgb highlights to 100. Than I decrease it 25 4 times. if it becomes 75 than it effects like 750. when it becomes 50 it effects like 750 again, when it becomes 0 than it effects like 0.

I couldn't resolve reason of this oddness.

Spider_hip

Are you sure it's not your maths? You can only set absolute values and there's no way to retrieve current parameters... For me, it works flawlessly. Thanks.