How to make a Texture2D 50% transparent? XNA

xna transparency opacity
Tom picture Tom · Jul 9, 2011 · Viewed 26.3k times · Source

I'm using SpriteBatch to draw a Texture2D on the screen and was wondering how I could manipulate the the images opacity? Anyone know the best way in accomplishing this?

Answer

ClassicThunder picture ClassicThunder · Jul 9, 2011

Assuming you are using XNA 4.0 with premultiplied alpha. In your spritebatch.draw multiply the color by a float, 0.5f for 50% transparency, and draw as you would normally. If you are not using premultiplied alpha I suggest you do for performance reasons and its more intuitive after you get used to it.

Example:

_spriteBatch.Draw(texture, location, Color.White * 0.5f);

Edit: Also make sure you set your blend state to BlendState.AlphaBlend, or another blend state that supports alpha and is not NonPremultiplied.

Example:

_spriteBatch.Begin(SpriteSortMode.Immediate, BlendState.AlphaBlend);

Related questions

How to install XNA game studio on Visual Studio 2012?

Is it possible to create XNA games using Visual Studio 2012?

Read More
Convert string to Color in C#

I am encountering a problem which is how do I convert input strings like "RED" to the actual Color type Color.Red in C#. Is there a good way to do this? I could think of using a switch statement …

Read More
How do I set the window / screen size in xna?

How can I adjust the size of the window in XNA. Default it starts in a 800x600 resolution.

Read More