46 lines
1.5 KiB
C#
46 lines
1.5 KiB
C#
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using System.IO;
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using UnityEngine;
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using UnityEngine.UI;
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namespace Runtime
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{
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public class TestHunHePic : MonoBehaviour
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{
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public Texture2D bottomTexture;
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public Texture2D topTexture;
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public Shader blendShader;
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[ContextMenu("Blend and Export")]
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public void BlendAndExport()
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{
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// 创建临时RenderTexture
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RenderTexture rt = new RenderTexture(bottomTexture.width, bottomTexture.height, 0);
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// 创建材质并设置纹理
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Material blendMaterial = new Material(blendShader);
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blendMaterial.SetTexture("_MainTex", bottomTexture);
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blendMaterial.SetTexture("_BlendTex", topTexture);
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// 执行混合
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Graphics.Blit(null, rt, blendMaterial);
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// 转换RenderTexture为Texture2D
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Texture2D output = new Texture2D(rt.width, rt.height, TextureFormat.ARGB32, false);
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RenderTexture.active = rt;
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output.ReadPixels(new Rect(0, 0, rt.width, rt.height), 0, 0);
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output.Apply();
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// 保存为PNG
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byte[] bytes = output.EncodeToPNG();
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string path = Path.Combine(Application.streamingAssetsPath, "BlendedImage.png");
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File.WriteAllBytes(path, bytes);
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// 清理资源
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RenderTexture.active = null;
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DestroyImmediate(rt);
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Destroy(output);
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Debug.Log($"Saved blended image to: {path}");
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}
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}
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}
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