tayajoint.blogg.se - Android ndk opengl

ANDROID NDK OPENGL HOW TO
ANDROID NDK OPENGL ANDROID

Interface to OpenGL ES 2.0 and is available starting with Android 2.2 (API Level 8).

android.opengl - This package provides a static interface to the OpenGL ESġ.0/1.1 classes and better performance than the package interfaces.

Once you have established a container view for OpenGL using GLSurfaceView and GLSurfaceView.Renderer, you can beginĬalling OpenGL APIs using the following classes: Respond to changes in the GLSurfaceView container. This method when the device changes from portrait to landscape orientation.

onSurfaceChanged(): The system calls this method when the GLSurfaceView geometry changes, including changes in size of the GLSurfaceView or orientation of the device screen.

Use this method as the primary execution point forĭrawing (and re-drawing) graphic objects.

onDrawFrame(): The system calls this method on each redraw of the GLSurfaceView.Use this method to performĪctions that need to happen only once, such as setting OpenGL environment parameters or Method once, when creating the GLSurfaceView. onSurfaceCreated(): The system calls this.The GLSurfaceView.Renderer interface requires that you implement the Separate class and attach it to your GLSurfaceView instance using You must provide an implementation of this interface as a GLSurfaceView.Renderer This interface defines the methods required for drawing graphics in an OpenGL GLSurfaceView. Implement the touch listeners, as shown in OpenGL training lesson, Touch screen events, you should extend the GLSurfaceView class to This class by creating an instance of GLSurfaceView and adding your OpenGL API calls and is similar in function to a SurfaceView. GLSurfaceView This class is a View where you can draw and manipulate objects using

ANDROID NDK OPENGL HOW TO

Understanding how to implement these classes in an activity should be your first objective. If your goal is to use OpenGL in your Android application, Graphics with the OpenGL ES API: GLSurfaceView and GLSurfaceView.Renderer. There are two foundational classes in the Android framework that let you create and manipulate This topic focuses on the Android framework interfaces. The BasicsĪndroid supports OpenGL both through its framework API and the Native Development J2ME JSR239 OpenGL ES API, but is not identical. Note: The specific API provided by the Android framework is similar to the Beginning with Android 2.2 (API Level 8), the framework supports the The OpenGL ES 1.0 and 1.1 API specifications have been Specification intended for embedded devices. Standard software interface for 3D graphics processing hardware. OpenGL is a cross-platform graphics API that specifies a (OpenGL), specifically, the OpenGL ES API. OpenGL Versions and Device CompatibilityĪndroid includes support for high performance 2D and 3D graphics with the Open Graphics Library.