Don't flip the bitmap, flip your texture coordinates. It's easier and less work for the device. On Jan 14, 2013 7:03 AM, "bob" <[email protected]> wrote:
> Has anyone else noticed that GLUtils.texImage2D seems to want the image to > be upside down? > > GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, bitmap, 0); > > One way to see this is to look at Cosmin Banu's NeHe code here: > > > > http://code.google.com/p/nehe-android/source/browse/trunk/NeHe06/src/ro/brite/android/nehe06/Utils.java > > He has this in there: > > private static Matrix yFlipMatrix; > > static > { > yFlipMatrix = new Matrix(); > yFlipMatrix.postScale(1, -1); // flip Y axis > } > > And this: > > return Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), > bitmap.getHeight(), yFlipMatrix, false); > > > I have independently noticed this, and it caused a lot of frustration. > > Any ideas how to best solve this? Obviously, if we "just fix it", it will > break a lot of old code that relies on its currently incorrect behavior. > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
