public void RefreshBlurBackground()
{
DestroyBackgroundTexture();
var windowRect = this.position;
var position = windowRect.position;
var width = (int)windowRect.width;
var height = (int)windowRect.height;
if (width <= 0 || height <= 0)
{
return;
}
var pixels = UnityEditorInternal.InternalEditorUtility.ReadScreenPixel(position, width, height);
var baseTex = new Texture2D(width, height, TextureFormat.RGBA32, false);
baseTex.hideFlags = HideFlags.DontSave;
baseTex.SetPixels(pixels);
baseTex.Apply();
var blurOptions = new BlurOptions();
var blurTexture = BlurUtility.BlurTexture(baseTex, blurOptions);
Texture2D.DestroyImmediate(baseTex);
backgroundTexture_ = blurTexture;
}
public static Texture BlurTexture(Texture sourceTexture, BlurOptions options)
{
var blurMaterial = new Material(Shader.Find("Hidden/QuickSearch-Blur"));
blurMaterial.SetColor("_Tint", options.tint);
blurMaterial.SetFloat("_Tinting", options.tinting);
blurMaterial.SetFloat("_BlurSize", options.blurSize);
var destTexture = new RenderTexture(sourceTexture.width, sourceTexture.height, 0);
destTexture.Create();
var active = RenderTexture.active;
try {
var tempA = RenderTexture.GetTemporary(sourceTexture.width, sourceTexture.height);
var tempB = RenderTexture.GetTemporary(sourceTexture.width, sourceTexture.height);
for (int i = 0; i < options.passes; i++)
{
if (i == 0)
{
Graphics.Blit(sourceTexture, tempA, blurMaterial, 0);
}
else
{
Graphics.Blit(tempB, tempA, blurMaterial, 0);
}
Graphics.Blit(tempA, tempB, blurMaterial, 1);
}
Graphics.Blit(tempB, destTexture, blurMaterial, 2);
RenderTexture.ReleaseTemporary(tempA);
RenderTexture.ReleaseTemporary(tempB);
} catch (Exception e) {
Debug.LogException(e);
} finally {
RenderTexture.active = active; // Restore
}
Material.DestroyImmediate(blurMaterial);
return(destTexture);
}
