Works for me on my HTC Hero - I too could only use RGB and not RGBA. Emulator flips the textures upside down though...
Does anyone else have more information regarding other phones? I have an app on the app store that uses this method and I am suspecting that it does not work for all current phones. I get really useful comments like 'Does not work on Tattoo - nuff said'... Not sure if the forum rules prevent me from mentioning my app so PM me if you'd like to help out and test - I'd definitely appreciate it very much and would be willing to help you out in return regarding OpenGL development questions... On Nov 21, 4:45 pm, Ben Gotow <[email protected]> wrote: > Hey everyone, > > I'm porting anOpenGLapp from the iPhone to Android, and I need to > renderOpenGLcontent to a texture. Since framebuffers are not > available inOpenGL1.0 and the DROID is the only Android phone to > support the framebuffer extension, I'm trying to draw usingOpenGLand > then copy the result into a texture using glCopyTexImage2D. However, > my initial findings are not good: > > 1. glCopyTexImage2D works in the Android emulator (OS v. 1.5), but > only with GL10.GL_RGB, not GL_RGBA. If you try to copy the alpha data > from the scene into the texture, you just get a completely white > texture. > > 2. glCopyTexImage2D doesn't seem to work _at all_ on the Android G1. > It does not throw an UnsupportedOperationException but after calling > it, the texture is completely white. > > Has anyone successfully used glCopyTexImage2D on an actual device? If > so, could you please post a bit of the code you're using? I suspect it > works only with specific settings, if at all. Right now, I'm calling > it like this: > > gl.glCopyTexImage2D(GL10.GL_TEXTURE_2D, 0, GL11.GL_RGBA, 0,0, 256, > 256, 0); -- 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
