WallOfFleshShader.cs

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using System;
using Microsoft.Xna.Framework;
using ReLogic.Peripherals.RGB;
 
namespace Terraria.GameContent.RGB;
 
public class WallOfFleshShader : ChromaShader
{
    private readonly Vector4 _primaryColor;
 
    private readonly Vector4 _secondaryColor;
 
    public WallOfFleshShader(Color primaryColor, Color secondaryColor)
    {
        _primaryColor = primaryColor.ToVector4();
        _secondaryColor = secondaryColor.ToVector4();
    }
 
    [RgbProcessor(/*Could not decode attribute arguments.*/)]
    private void ProcessHighDetail(RgbDevice device, Fragment fragment, EffectDetailLevel quality, float time)
    {
        for (int i = 0; i < fragment.Count; i++)
        {
            Vector2 canvasPositionOfIndex = fragment.GetCanvasPositionOfIndex(i);
            Vector4 secondaryColor = _secondaryColor;
            float dynamicNoise = NoiseHelper.GetDynamicNoise(canvasPositionOfIndex * 0.3f, time / 5f);
            dynamicNoise = Math.Max(0f, 1f - dynamicNoise * 2f);
            secondaryColor = Vector4.Lerp(secondaryColor, _primaryColor, (float)Math.Sqrt(dynamicNoise) * 0.75f);
            fragment.SetColor(i, secondaryColor);
        }
    }
}