Premultiply or Unpremultiply¶
描述
Multiply (or divide) each color component by the pixel’s alpha value.
Use this effect before any alpha effects if the result of your compositions using alpha has odd-looking colors.
參數
參數 |
數值 |
描述 |
|---|---|---|
unpremultiply |
開關 |
Whether to unpremultiply instead (default is On) |
備註
For more details see this article by Nvidia about Alpha Blending.