Non power of two textures in iOS

Question

In my iOS app (targeted for iPad), I\'d like to use non power of two (NPT) textures. My GL_VERSION query returns \"OpenGL ES 2.0 APPLE\". According to the spec, it should su

Answer 1

As mentioned in my edit, I found the solution. NPOT on ES 2.0 requires that you use linear filtering and clamp to edge. Also, no mipmaps.

Answer 2

- (BOOL)isSupportNPOT {
//    GL_OES_texture_npot
//    GL_APPLE_texture_2D_limited_npot
//    GL_ARB_texture_non_power_of_two
    EAGLContext *context_ = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES1];
    [EAGLContext setCurrentContext:context_];
    NSArray *extensionNames = nil;
    NSString *extensionsString = [NSString stringWithCString:(const char *)glGetString(GL_EXTENSIONS) encoding:NSASCIIStringEncoding];
    extensionNames = [extensionsString componentsSeparatedByString:@" "];
    BOOL isSupport = [extensionNames containsObject:@"GL_APPLE_texture_2D_limited_npot"];
    [EAGLContext setCurrentContext:nil];
    NSLog(@"Apple Opengl support NPOT is %@", isSupport ? @"YES" : @"NO");
    return isSupport;
}