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Direct3D -> 2D Part 3, Alpha blending!!!

Submitted on: 1/15/2015 11:14:00 PM
By: Mark van Renswoude (from psc cd)  
Level: Intermediate
User Rating: By 6 Users
Compatibility: VB 4.0 (32-bit), VB 5.0, VB 6.0
Views: 691
     I'm back, with Part 3 of creating 2D graphics using Direct3D.

Part 3 is built on top of Part 1, still displaying the Mario character running around in circles, but contains some additions which I just found out:

  • Alpha blending! (you can change the alpha value, as shown in the demo)
  • Faster way of faking light! (this time, not using vertex color, but simply drawing a bitmap alpha-blended over the scene, more accurately simulating lighting)
  • Using DirectDraw in combination with Direct3D! (allowing for large surfaces to be drawn, like the background)

The 33 FPS in the screenshot are from my P133, however, if I turn off the background it instantly goes to 60 FPS (the maximum, since that's my monitor's refresh rate)...

Enjoy! And don't forget to leave comments (and vote!)

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