Question by lwilliford1 · Oct 26, 2020 at 11:22 AM · scripting problem post processing universal documentation interpolation

,How to blend Color Curves through script - Color Curve Interpolation

Hello,

I have been trying to automate interpolation between two different color curve components. It seems however, that there is minimal/no functions that Unity provides to help with this. In fact, there is almost zero information on color curve implementation via script on the internet. I am wondering if it is possible to automate this interpolation over time via script and if so, how would people go about this.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.Rendering;
 using UnityEngine.Rendering.Universal;
  
 public class PPEffectsChanger : MonoBehaviour
 {
     public VolumeProfile blackandwhiteDark;
     public VolumeProfile yellow;
     public ColorCurves colorCurvesYellow;
     public ColorCurves colorCurvesBW;
  
 public void SetYellowVolumeActive()
     {
         VolumeParameter paramYellowHS = colorCurvesYellow.hueVsSat;
         VolumeParameter paramBWHS = colorCurvesBW.hueVsSat;
  
         blackandwhiteDark.TryGet<ColorCurves>(out colorCurvesBW);
         yellow.TryGet<ColorCurves>(out colorCurvesYellow);
  
         colorCurvesBW.hueVsSat.SetValue(paramYellowHS);
  
         colorCurvesBW.hueVsSat.Interp(colorCurvesBW, colorCurvesYellow, t);
 }
 }

As you can see from this excerpt of code, I can set the ColorCurves via script using: "colorCurvesBW.hueVsSat.SetValue(paramYellowHS);", but I I cannot use this function to interpolate between two parameters...

Furthermore, the "Interp" function requires two TextureCurves to work properly.

I hope I have posted this in the right section, as I am new to asking questions on the forums (usually someone's got an answer out there already!). ,Hello,

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.Rendering;
 using UnityEngine.Rendering.Universal;
  
 public class PPEffectsChanger : MonoBehaviour
 {
     public VolumeProfile blackandwhiteDark;
     public VolumeProfile yellow;
     public ColorCurves colorCurvesYellow;
     public ColorCurves colorCurvesBW;
  
 public void SetYellowVolumeActive()
     {
         VolumeParameter paramYellowHS = colorCurvesYellow.hueVsSat;
         VolumeParameter paramBWHS = colorCurvesBW.hueVsSat;
  
         blackandwhiteDark.TryGet<ColorCurves>(out colorCurvesBW);
         yellow.TryGet<ColorCurves>(out colorCurvesYellow);
  
         colorCurvesBW.hueVsSat.SetValue(paramYellowHS);
  
         colorCurvesBW.hueVsSat.Interp(colorCurvesBW, colorCurvesYellow, t);
 }
 }

Furthermore, the "Interp" function requires two TextureCurves to work properly.

I hope I have posted this in the right section, as I am new to asking questions on this space (usually someone's got an answer out there already!).

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