private void DrawTarget(Rect r)
{
var textureSize = new Vector2(Mathf.Min(r.width, 1024.0f), Mathf.Min(r.height, 1024.0f));
var previewTexture = GradationMaterialEditor.CreatePreviewTexture2D(previewRender, material, textureSize, r.size, Color.white, Color.gray);
GUI.DrawTexture(r, previewTexture);
}
public override void OnPreviewGUI(Rect r, GUIStyle background)
{
base.OnPreviewGUI(r, background);
if (Event.current.type != EventType.Repaint)
{
return;
}
var drawShortLength = Mathf.Min(r.width, r.height);
var drawSize = drawShortLength * ((40.0f < drawShortLength)? 1.0f: 4.0f) * Vector2.one;
var previewTexture = GradationMaterialEditor.CreatePreviewTexture2D((GradationMaterial)target, drawSize, Color.white, Color.gray);
var drawRect = new Rect(r.center - drawShortLength * 0.5f * Vector2.one
, drawShortLength * Vector2.one
);
GUI.DrawTexture(drawRect, previewTexture);
}