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59 行
2.2 KiB
59 行
2.2 KiB
using UnityEngine;
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namespace UnityEditor.Experimental.VFX.Toolbox
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{
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internal class CurveToTextureUtility
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{
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public static void CurveToTexture(AnimationCurve curve, ref Texture2D texture)
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{
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if(texture != null && curve!= null && texture.height == 1 && texture.width > 1)
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{
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Color[] colors = new Color[texture.width];
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for (int i = 0; i < texture.width; i++)
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{
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float t = (float)i / (texture.width - 1);
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float v = curve.Evaluate(t);
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colors[i] = new Color(v, v, v, 1);
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}
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texture.SetPixels(colors);
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texture.Apply();
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}
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}
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public static void GradientToTexture(Gradient gradient, ref Texture2D texture, bool linear = false)
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{
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if(texture != null && gradient != null && texture.height == 1 && texture.width > 1)
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{
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Color[] colors = new Color[texture.width];
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for (int i = 0; i < texture.width; i++)
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{
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float t = (float)i / (texture.width - 1);
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if(linear)
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colors[i] = gradient.Evaluate(t).linear;
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else
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colors[i] = gradient.Evaluate(t);
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}
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texture.SetPixels(colors);
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texture.Apply();
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}
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}
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public static void GradientToTexture(Gradient gradient, AnimationCurve curve, ref Texture2D texture, bool linear = false)
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{
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if (texture != null && gradient != null && texture.height == 1 && texture.width > 1)
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{
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Color[] colors = new Color[texture.width];
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for (int i = 0; i < texture.width; i++)
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{
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float t = (float)i / (texture.width - 1);
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float b = curve.Evaluate(t);
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if (linear)
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colors[i] = b * gradient.Evaluate(t).linear;
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else
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colors[i] = b * gradient.Evaluate(t);
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}
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texture.SetPixels(colors);
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texture.Apply();
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}
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}
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}
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}
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