HelloGLKViewController.h

#import <GLKit/GLKit.h>

typedef struct {
    GLuint vertexBuffer;
    GLuint indexBuffer;
    GLKMatrix4 matrix;
    GLubyte numFaces;
} Drawable;

@interface HelloGLKitViewController : GLKViewController

@property (strong, nonatomic) EAGLContext *context;
@property (strong, nonatomic) GLKBaseEffect *effect;

- (Drawable)createDrawable: (NSString *)objFileName;
- (void) renderDrawable: (Drawable)object;

@end