Try & Error

Task #5: Loading DDS, BMP, TGA and other textures via WWW class in Unity3d

• Load texture using WWW class;
• Get bytes data using «bytes» field of WWW class;
• Create DevIL texture from this data;
• Get Color32[] array from DevIL texture;
• Create Texture2D object based on this color array;

• Android: Support streaming from OBB automatically.

• All platforms: Add a split alpha demo+shader to have a seperate alpha channel in your videos. Chroma keying works well for cutting out people but doesn't work well for a lot of semi transparent things, like particles. Split alpha works well for semi transparent stuff.
• iOS/Android: Fixed the CrCb channels not lining up properly with videos that have half sized CrCb buffers. Thanks to android_dev for the example.
• All platforms: Fixed video picture offsets. Thanks to Bryan @ Annosoft for the example.
• All platforms: Fixed the infinite loop if you didn't have a onFinish delegate.
• iOS/Android: About a 15% performance improvement up in mobile shaders

• All platforms: Add frame skipping when video is decoding too slowly
• All platforms: Add a color tintable transparent shader
• All platforms: Fix some transparent tags in shaders

• All Platforms: fix a looping bug
• All Platforms: fix a warning in the chroma key editor
• iOS: Add XCode 3.2.X version of the lib
• Reorganise the package so the Plugins and Streaming Assets are in the correct place

• All Platforms: Added a chroma key shader, editor and sample
• iOS/Android: Fixed corruption issue with a GL.InvalidateState
• All Platforms: Fixed 2 memory leaks in the native code
• All Platforms: Fixed YCrCb naming in the shaders

• iOS/Android: Work around a texture allocation bug in Unity if nothing else is drawing in the sample scene, by drawing a gui button

• All: platforms now do color space conversion on the gpu. This resulted in a 2x performance increase in iOS and a 1.7x in Android, in my tests.
• All: There is a big memory saving from not storing the converted 16bit rgb in ram. For example for the test movies, we saved NextPow2(640) * NextPow2(360) * 2 bytes = 1Mb
• Android: now has cpu features detection and uses NEON instructions where available. iOS always uses NEON.
• Windows/OSX: use power of 2 YCrCb textures for a massive speed up.
• Windows/OSX: use SetPixels32 for another speed up.
• All: Removing the color space conversion code saved ~10k
• Android: Fixed a bug on when resuming
• Windows/OSX: Hand code the YCrCb shader to work around bad cgsl compilation by Unity