Method drawCameraFrustum

tests/cpp-tests/Source/Camera3DTest/Camera3DTest.cpp:933–982

}

void CameraCullingDemo::drawCameraFrustum()
{
    _drawFrustum->clear();
    auto size = Director::getInstance()->getWinSize();

    Color4F color(1.f, 1.f, 0.f, 1);

    // top-left
    Vec3 tl_0, tl_1;
    Vec3 src(0, 0, 0);
    tl_0 = _cameraFirst->unproject(src);
    src  = Vec3(0, 0, 1);
    tl_1 = _cameraFirst->unproject(src);

    // top-right
    Vec3 tr_0, tr_1;
    src  = Vec3(size.width, 0, 0);
    tr_0 = _cameraFirst->unproject(src);
    src  = Vec3(size.width, 0, 1);
    tr_1 = _cameraFirst->unproject(src);

    // bottom-left
    Vec3 bl_0, bl_1;
    src  = Vec3(0, size.height, 0);
    bl_0 = _cameraFirst->unproject(src);
    src  = Vec3(0, size.height, 1);
    bl_1 = _cameraFirst->unproject(src);

    // bottom-right
    Vec3 br_0, br_1;
    src  = Vec3(size.width, size.height, 0);
    br_0 = _cameraFirst->unproject(src);
    src  = Vec3(size.width, size.height, 1);
    br_1 = _cameraFirst->unproject(src);

    _drawFrustum->drawLine(tl_0, tl_1, color);
    _drawFrustum->drawLine(tr_0, tr_1, color);
    _drawFrustum->drawLine(bl_0, bl_1, color);
    _drawFrustum->drawLine(br_0, br_1, color);

    _drawFrustum->drawLine(tl_0, tr_0, color);
    _drawFrustum->drawLine(tr_0, br_0, color);
    _drawFrustum->drawLine(br_0, bl_0, color);
    _drawFrustum->drawLine(bl_0, tl_0, color);

    _drawFrustum->drawLine(tl_1, tr_1, color);
    _drawFrustum->drawLine(tr_1, br_1, color);
    _drawFrustum->drawLine(br_1, bl_1, color);
    _drawFrustum->drawLine(bl_1, tl_1, color);
}

////////////////////////////////////////////////////////////
// CameraArcBallDemo