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fix bug and add notes

This commit is contained in:
songmiao 2015-01-09 10:23:40 +08:00
parent 71820e6db1
commit 9de5371202
1 changed files with 50 additions and 20 deletions
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68
tests/cpp-tests/Classes/Camera3DTest/Camera3DTest.cpp
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@ -40,8 +40,12 @@ static std::function<Layer*()> createFunctions[] =
{
CL(Camera3DTestDemo),
CL(CameraClippingDemo),
CL(CameraArcBallDemo),
CL(FogTestDemo)
#if (CC_TARGET_PLATFORM != CC_PLATFORM_WP8) && (CC_TARGET_PLATFORM != CC_PLATFORM_WINRT)
// 3DEffect use custom shader which is not supported on WP8/WinRT yet.
CL(FogTestDemo),
#endif
CL(CameraArcBallDemo)
};
#define MAX_LAYER (sizeof(createFunctions) / sizeof(createFunctions[0]))
@ -1133,32 +1137,34 @@ void CameraArcBallDemo::calculateArcBall( cocos2d::Vec3 & axis, float & angle, f
Mat4 rotation_matrix;
Mat4::createRotation(_rotationQuat, &rotation_matrix);
Vec3 uv = rotation_matrix * Vec3(0.0f,1.0f,0.0f);
Vec3 sv = rotation_matrix * Vec3(1.0f,0.0f,0.0f);
Vec3 lv = rotation_matrix * Vec3(0.0f,0.0f,-1.0f);
Vec3 uv = rotation_matrix * Vec3(0.0f,1.0f,0.0f); //rotation y
Vec3 sv = rotation_matrix * Vec3(1.0f,0.0f,0.0f); //rotation x
Vec3 lv = rotation_matrix * Vec3(0.0f,0.0f,-1.0f);//rotation z
Vec3 p1 = sv * p1x + uv * p1y - lv * projectToSphere(_radius, p1x, p1y);
Vec3 p2 = sv * p2x + uv * p2y - lv * projectToSphere(_radius, p2x, p2y);
Vec3 p1 = sv * p1x + uv * p1y - lv * projectToSphere(_radius, p1x, p1y); //start point screen transform to 3d
Vec3 p2 = sv * p2x + uv * p2y - lv * projectToSphere(_radius, p2x, p2y); //end point screen transform to 3d
Vec3::cross(p2, p1, &axis);
Vec3::cross(p2, p1, &axis); //calculate rotation axis
axis.normalize();
float t = (p2 - p1).length() / (2.0 * _radius);
//clamp -1 to 1
if (t > 1.0) t = 1.0;
if (t < -1.0) t = -1.0;
angle = asin(t);
angle = asin(t); //rotation angle
}
/* project an x,y pair onto a sphere of radius r or a
hyperbolic sheet if we are away from the center of the sphere. */
float CameraArcBallDemo::projectToSphere( float r, float x, float y )
{
float d, t, z;
d = sqrt(x*x + y*y);
if (d < r * 0.70710678118654752440)
if (d < r * 0.70710678118654752440)//inside sphere
{
z = sqrt(r*r - d*d);
}
else
else //on hyperbola
{
t = r / 1.41421356237309504880;
z = t*t / d;
@ -1259,6 +1265,7 @@ void FogTestDemo::onEnter()
{
BaseTest::onEnter();
schedule(schedule_selector(FogTestDemo::update), 0.0f);
Director::getInstance()->setClearColor(Color4F(0.5,0.5,0.5,1));
auto s = Director::getInstance()->getWinSize();
auto listener = EventListenerTouchAllAtOnce::create();
@ -1288,8 +1295,6 @@ void FogTestDemo::onEnter()
addChild(layer3D,0);
_layer3D=layer3D;
glClearColor(0.5,0.5,0.5,1.0);
_shader =GLProgram::createWithFilenames("Sprite3DTest/fog.vert","Sprite3DTest/fog.frag");
_state = GLProgramState::create(_shader);
@ -1351,6 +1356,27 @@ void FogTestDemo::onEnter()
}
_layer3D->setCameraMask(2);
#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID || CC_TARGET_PLATFORM == CC_PLATFORM_WP8 || CC_TARGET_PLATFORM == CC_PLATFORM_WINRT)
_backToForegroundListener = EventListenerCustom::create(EVENT_RENDERER_RECREATED,
[this](EventCustom*)
{
Director::getInstance()->setClearColor(Color4F(0.5,0.5,0.5,1));
auto glProgram = _state->getGLProgram();
glProgram->reset();
glProgram->initWithFilenames("Sprite3DTest/fog.vert","Sprite3DTest/fog.frag");
glProgram->link();
glProgram->updateUniforms();
_state->setUniformVec4("u_fogColor", Vec4(0.5,0.5,0.5,1.0));
_state->setUniformFloat("u_fogStart",10);
_state->setUniformFloat("u_fogEnd",60);
_state->setUniformInt("u_fogEquation" ,0);
}
);
Director::getInstance()->getEventDispatcher()->addEventListenerWithFixedPriority(_backToForegroundListener, -1);
#endif
}
void FogTestDemo::switchTypeCallback(Ref* sender,int type)
@ -1388,11 +1414,15 @@ void FogTestDemo::switchTypeCallback(Ref* sender,int type)
void FogTestDemo::onExit()
{
BaseTest::onExit();
glClearColor(0.0,0.0,0.0,1.0);
Director::getInstance()->setClearColor(Color4F(0,0,0,1));
if (_camera)
{
_camera = nullptr;
}
#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID || CC_TARGET_PLATFORM == CC_PLATFORM_WP8 || CC_TARGET_PLATFORM == CC_PLATFORM_WINRT)
Director::getInstance()->getEventDispatcher()->removeEventListener(_backToForegroundListener);
#endif
}
void FogTestDemo::update(float dt)
@ -1403,9 +1433,9 @@ void FogTestDemo::onTouchesMoved(const std::vector<Touch*>& touches, cocos2d::Ev
{
if(touches.size()==1)
{
auto touch = touches[0];
auto location = touch->getLocation();
Point newPos = touch->getPreviousLocation()-location;
Vec2 prelocation = touches[0]->getPreviousLocationInView();
Vec2 location = touches[0]->getLocationInView();
Vec2 newPos = prelocation - location;
if(_cameraType==CameraType::FreeCamera)
{
Vec3 cameraDir;
@ -1417,7 +1447,7 @@ void FogTestDemo::onTouchesMoved(const std::vector<Touch*>& touches, cocos2d::Ev
cameraRightDir.normalize();
cameraRightDir.y=0;
Vec3 cameraPos= _camera->getPosition3D();
cameraPos+=cameraDir*newPos.y*0.1f;
cameraPos-=cameraDir*newPos.y*0.1f;
cameraPos+=cameraRightDir*newPos.x*0.1f;
_camera->setPosition3D(cameraPos);
}