是的,Android Studio 可以用来开发一个展示 3D 模型的应用。
使用 OpenGL ES 这个库可以轻松实现 3D 渲染,以下是一个基本例子:
dependencies {
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation 'com.google.android.things.contrib:driver-sensehat:1.0'
implementation 'javax.microedition.khronos:opengl-api:gl1.1-android-2.1_r1'
}
class MyGLSurfaceView(context: Context) : GLSurfaceView(context) {
private val renderer: MyGLRenderer
init {
setEGLContextClientVersion(2)
renderer = MyGLRenderer()
setRenderer(renderer)
}
}
class MainActivity : AppCompatActivity() {
private lateinit var glSurfaceView: GLSurfaceView
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
glSurfaceView = MyGLSurfaceView(this)
setContentView(glSurfaceView)
}
}
以上代码中,我们创建了一个自定义的 GLSurfaceView 对象,并在 MainActivity 中使用它来显示渲染的内容。
class MyGLRenderer : GLSurfaceView.Renderer {
private lateinit var triangle: Triangle
override fun onSurfaceCreated(gl: GL10?, config: EGLConfig?) {
GLES20.glClearColor(0.0f, 0.0f, 0.0f, 1.0f)
triangle = Triangle()
}
override fun onSurfaceChanged(gl: GL10?, width: Int, height: Int) {
GLES20.glViewport(0, 0, width, height)
}
override fun onDrawFrame(gl: GL10?) {
GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT)
triangle.draw()
}
}
class Triangle {
private val vertexShaderCode =
"attribute vec4 vPosition;" +
"void main() {" +
" gl_Position = vPosition;" +
"}"
private val fragmentShaderCode =
"precision mediump float;" +