public void onSurfaceCreated(GL10 gl, EGLConfig config)
{
gl.glMatrixMode(GL10_GL_PROJECTION);
float size = .01f * (float)java.lang.Math.tan(java.lang.Math.toRadians(45.0) / 2);
float ratio = _width / _height;
// perspective:
gl.glFrustumf(-size, size, -size / ratio, size / ratio, 0.01f, 100.0f);
// orthographic:
//gl.glOrthof(-1, 1, -1 / ratio, 1 / ratio, 0.01f, 100.0f);
gl.glViewport(0, 0, (int)_width, (int)_height);
gl.glMatrixMode(GL10_GL_MODELVIEW);
gl.glEnable(GL10_GL_DEPTH_TEST);
// define the color we want to be displayed as the "clipping wall"
gl.glClearColor(0f, 0f, 0f, 1.0f);
// enable the differentiation of which side may be visible
gl.glEnable(GL10_GL_CULL_FACE);
// which is the front? the one which is drawn counter clockwise
gl.glFrontFace(GL10_GL_CCW);
// which one should NOT be drawn
gl.glCullFace(GL10_GL_BACK);
gl.glEnableClientState(GL10_GL_VERTEX_ARRAY);
gl.glEnableClientState(GL10_GL_COLOR_ARRAY);
initTriangle();
}
public void onSurfaceCreated(GL10 gl, EGLConfig config)
{
gl.glMatrixMode(GL10_GL_PROJECTION);
float size = .01f * (float)java.lang.Math.tan(java.lang.Math.toRadians(45.0) / 2);
float ratio = _width / _height;
// perspective:
gl.glFrustumf(-size, size, -size / ratio, size / ratio, 0.01f, 100.0f);
// orthographic:
//gl.glOrthof(-1, 1, -1 / ratio, 1 / ratio, 0.01f, 100.0f);
gl.glViewport(0, 0, (int)_width, (int)_height);
gl.glMatrixMode(GL10_GL_MODELVIEW);
gl.glEnable(GL10_GL_DEPTH_TEST);
// define the color we want to be displayed as the "clipping wall"
gl.glClearColor(0f, 0f, 0f, 1.0f);
// enable the differentiation of which side may be visible
gl.glEnable(GL10_GL_CULL_FACE);
// which is the front? the one which is drawn counter clockwise
gl.glFrontFace(GL10_GL_CCW);
// which one should NOT be drawn
gl.glCullFace(GL10_GL_BACK);
gl.glEnableClientState(GL10_GL_VERTEX_ARRAY);
gl.glEnableClientState(GL10_GL_COLOR_ARRAY);
initTriangle();
}