2014-08-07 15:23:31 +08:00
|
|
|
/****************************************************************************
|
|
|
|
Copyright (c) 2014 Chukong Technologies Inc.
|
|
|
|
|
|
|
|
http://www.cocos2d-x.org
|
|
|
|
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
|
|
in the Software without restriction, including without limitation the rights
|
|
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
|
|
all copies or substantial portions of the Software.
|
|
|
|
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
|
|
THE SOFTWARE.
|
|
|
|
****************************************************************************/
|
2014-10-20 16:25:24 +08:00
|
|
|
#include "2d/CCCamera.h"
|
2014-08-07 15:23:31 +08:00
|
|
|
#include "base/CCDirector.h"
|
|
|
|
#include "platform/CCGLView.h"
|
|
|
|
#include "2d/CCScene.h"
|
|
|
|
|
|
|
|
NS_CC_BEGIN
|
|
|
|
|
2014-08-08 11:49:59 +08:00
|
|
|
Camera* Camera::_visitingCamera = nullptr;
|
|
|
|
|
2014-08-07 15:23:31 +08:00
|
|
|
Camera* Camera::create()
|
|
|
|
{
|
2014-08-28 07:31:57 +08:00
|
|
|
Camera* camera = new (std::nothrow) Camera();
|
2014-08-13 15:57:22 +08:00
|
|
|
camera->initDefault();
|
|
|
|
camera->autorelease();
|
|
|
|
|
2014-08-07 15:23:31 +08:00
|
|
|
return camera;
|
|
|
|
}
|
|
|
|
|
|
|
|
Camera* Camera::createPerspective(float fieldOfView, float aspectRatio, float nearPlane, float farPlane)
|
|
|
|
{
|
2014-08-28 07:31:57 +08:00
|
|
|
auto ret = new (std::nothrow) Camera();
|
2014-08-07 15:23:31 +08:00
|
|
|
if (ret)
|
|
|
|
{
|
2014-08-12 14:42:08 +08:00
|
|
|
ret->initPerspective(fieldOfView, aspectRatio, nearPlane, farPlane);
|
2014-08-07 15:23:31 +08:00
|
|
|
ret->autorelease();
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
CC_SAFE_DELETE(ret);
|
|
|
|
return nullptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
Camera* Camera::createOrthographic(float zoomX, float zoomY, float nearPlane, float farPlane)
|
|
|
|
{
|
2014-08-28 07:31:57 +08:00
|
|
|
auto ret = new (std::nothrow) Camera();
|
2014-08-07 15:23:31 +08:00
|
|
|
if (ret)
|
|
|
|
{
|
2014-08-12 14:42:08 +08:00
|
|
|
ret->initOrthographic(zoomX, zoomY, nearPlane, farPlane);
|
2014-08-07 15:23:31 +08:00
|
|
|
ret->autorelease();
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
CC_SAFE_DELETE(ret);
|
|
|
|
return nullptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
Camera::Camera()
|
2014-10-30 22:25:46 +08:00
|
|
|
: _scene(nullptr)
|
2014-08-07 15:23:31 +08:00
|
|
|
, _viewProjectionDirty(true)
|
2014-10-30 22:25:46 +08:00
|
|
|
, _cameraFlag(1)
|
2014-12-16 16:34:35 +08:00
|
|
|
, _frustumDirty(true)
|
|
|
|
, _enableFrustumCull(true)
|
2014-08-07 15:23:31 +08:00
|
|
|
{
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
Camera::~Camera()
|
|
|
|
{
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
void Camera::setPosition3D(const Vec3& position)
|
|
|
|
{
|
|
|
|
Node::setPosition3D(position);
|
|
|
|
|
|
|
|
_transformUpdated = _transformDirty = _inverseDirty = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
const Mat4& Camera::getProjectionMatrix() const
|
|
|
|
{
|
|
|
|
return _projection;
|
|
|
|
}
|
2014-08-07 15:57:15 +08:00
|
|
|
const Mat4& Camera::getViewMatrix() const
|
2014-08-07 15:23:31 +08:00
|
|
|
{
|
|
|
|
Mat4 viewInv(getNodeToWorldTransform());
|
|
|
|
static int count = sizeof(float) * 16;
|
|
|
|
if (memcmp(viewInv.m, _viewInv.m, count) != 0)
|
|
|
|
{
|
|
|
|
_viewProjectionDirty = true;
|
2014-12-18 17:18:22 +08:00
|
|
|
_frustumDirty = true;
|
2014-08-07 15:23:31 +08:00
|
|
|
_viewInv = viewInv;
|
|
|
|
_view = viewInv.getInversed();
|
|
|
|
}
|
|
|
|
return _view;
|
|
|
|
}
|
|
|
|
void Camera::lookAt(const Vec3& lookAtPos, const Vec3& up)
|
|
|
|
{
|
|
|
|
Vec3 upv = up;
|
|
|
|
upv.normalize();
|
|
|
|
Vec3 zaxis;
|
|
|
|
Vec3::subtract(this->getPosition3D(), lookAtPos, &zaxis);
|
|
|
|
zaxis.normalize();
|
|
|
|
|
|
|
|
Vec3 xaxis;
|
|
|
|
Vec3::cross(upv, zaxis, &xaxis);
|
|
|
|
xaxis.normalize();
|
|
|
|
|
|
|
|
Vec3 yaxis;
|
|
|
|
Vec3::cross(zaxis, xaxis, &yaxis);
|
|
|
|
yaxis.normalize();
|
|
|
|
Mat4 rotation;
|
|
|
|
rotation.m[0] = xaxis.x;
|
|
|
|
rotation.m[1] = xaxis.y;
|
|
|
|
rotation.m[2] = xaxis.z;
|
|
|
|
rotation.m[3] = 0;
|
|
|
|
|
|
|
|
rotation.m[4] = yaxis.x;
|
|
|
|
rotation.m[5] = yaxis.y;
|
|
|
|
rotation.m[6] = yaxis.z;
|
|
|
|
rotation.m[7] = 0;
|
|
|
|
rotation.m[8] = zaxis.x;
|
|
|
|
rotation.m[9] = zaxis.y;
|
|
|
|
rotation.m[10] = zaxis.z;
|
|
|
|
rotation.m[11] = 0;
|
2014-10-31 11:32:10 +08:00
|
|
|
|
2014-08-07 15:23:31 +08:00
|
|
|
Quaternion quaternion;
|
|
|
|
Quaternion::createFromRotationMatrix(rotation,&quaternion);
|
2014-10-31 11:32:10 +08:00
|
|
|
|
|
|
|
float rotx = atan2f(2 * (quaternion.w * quaternion.x + quaternion.y * quaternion.z), 1 - 2 * (quaternion.x * quaternion.x + quaternion.y * quaternion.y));
|
|
|
|
float roty = asin(clampf(2 * (quaternion.w * quaternion.y - quaternion.z * quaternion.x) , -1.0f , 1.0f));
|
|
|
|
float rotz = -atan2(2 * (quaternion.w * quaternion.z + quaternion.x * quaternion.y) , 1 - 2 * (quaternion.y * quaternion.y + quaternion.z * quaternion.z));
|
|
|
|
|
|
|
|
setRotation3D(Vec3(CC_RADIANS_TO_DEGREES(rotx),CC_RADIANS_TO_DEGREES(roty),CC_RADIANS_TO_DEGREES(rotz)));
|
2014-08-07 15:23:31 +08:00
|
|
|
}
|
|
|
|
|
2014-08-07 15:57:15 +08:00
|
|
|
const Mat4& Camera::getViewProjectionMatrix() const
|
2014-08-07 15:23:31 +08:00
|
|
|
{
|
|
|
|
getViewMatrix();
|
|
|
|
if (_viewProjectionDirty)
|
|
|
|
{
|
|
|
|
_viewProjectionDirty = false;
|
|
|
|
Mat4::multiply(_projection, _view, &_viewProjection);
|
|
|
|
}
|
|
|
|
|
|
|
|
return _viewProjection;
|
|
|
|
}
|
|
|
|
|
|
|
|
void Camera::setAdditionalProjection(const Mat4& mat)
|
|
|
|
{
|
|
|
|
_projection = mat * _projection;
|
|
|
|
getViewProjectionMatrix();
|
|
|
|
}
|
|
|
|
|
2014-08-12 14:42:08 +08:00
|
|
|
bool Camera::initDefault()
|
|
|
|
{
|
|
|
|
auto size = Director::getInstance()->getWinSize();
|
|
|
|
//create default camera
|
|
|
|
auto projection = Director::getInstance()->getProjection();
|
|
|
|
switch (projection)
|
|
|
|
{
|
|
|
|
case Director::Projection::_2D:
|
|
|
|
{
|
|
|
|
initOrthographic(size.width, size.height, -1024, 1024);
|
2014-08-13 15:57:22 +08:00
|
|
|
setPosition3D(Vec3(0.0f, 0.0f, 0.0f));
|
2014-08-14 09:06:06 +08:00
|
|
|
setRotation3D(Vec3(0.f, 0.f, 0.f));
|
2014-08-12 14:42:08 +08:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
case Director::Projection::_3D:
|
|
|
|
{
|
|
|
|
float zeye = Director::getInstance()->getZEye();
|
|
|
|
initPerspective(60, (GLfloat)size.width / size.height, 10, zeye + size.height / 2.0f);
|
|
|
|
Vec3 eye(size.width/2, size.height/2.0f, zeye), center(size.width/2, size.height/2, 0.0f), up(0.0f, 1.0f, 0.0f);
|
|
|
|
setPosition3D(eye);
|
|
|
|
lookAt(center, up);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
default:
|
|
|
|
CCLOG("unrecognized projection");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool Camera::initPerspective(float fieldOfView, float aspectRatio, float nearPlane, float farPlane)
|
|
|
|
{
|
|
|
|
_fieldOfView = fieldOfView;
|
|
|
|
_aspectRatio = aspectRatio;
|
|
|
|
_nearPlane = nearPlane;
|
|
|
|
_farPlane = farPlane;
|
|
|
|
Mat4::createPerspective(_fieldOfView, _aspectRatio, _nearPlane, _farPlane, &_projection);
|
|
|
|
#if CC_TARGET_PLATFORM == CC_PLATFORM_WP8
|
|
|
|
//if needed, we need to add a rotation for Landscape orientations on Windows Phone 8 since it is always in Portrait Mode
|
|
|
|
GLView* view = Director::getInstance()->getOpenGLView();
|
|
|
|
if(view != nullptr)
|
|
|
|
{
|
|
|
|
setAdditionalProjection(view->getOrientationMatrix());
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
_viewProjectionDirty = true;
|
2014-12-18 17:18:22 +08:00
|
|
|
_frustumDirty = true;
|
2014-08-12 14:42:08 +08:00
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool Camera::initOrthographic(float zoomX, float zoomY, float nearPlane, float farPlane)
|
|
|
|
{
|
|
|
|
_zoom[0] = zoomX;
|
|
|
|
_zoom[1] = zoomY;
|
|
|
|
_nearPlane = nearPlane;
|
|
|
|
_farPlane = farPlane;
|
2014-08-13 15:57:22 +08:00
|
|
|
Mat4::createOrthographicOffCenter(0, _zoom[0], 0, _zoom[1], _nearPlane, _farPlane, &_projection);
|
2014-08-12 14:42:08 +08:00
|
|
|
#if CC_TARGET_PLATFORM == CC_PLATFORM_WP8
|
|
|
|
//if needed, we need to add a rotation for Landscape orientations on Windows Phone 8 since it is always in Portrait Mode
|
|
|
|
GLView* view = Director::getInstance()->getOpenGLView();
|
|
|
|
if(view != nullptr)
|
|
|
|
{
|
|
|
|
setAdditionalProjection(view->getOrientationMatrix());
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
_viewProjectionDirty = true;
|
2014-12-18 17:18:22 +08:00
|
|
|
_frustumDirty = true;
|
2014-08-12 14:42:08 +08:00
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2014-08-07 15:57:15 +08:00
|
|
|
void Camera::unproject(const Size& viewport, Vec3* src, Vec3* dst) const
|
2014-08-07 15:23:31 +08:00
|
|
|
{
|
|
|
|
assert(dst);
|
|
|
|
Vec4 screen(src->x / viewport.width, ((viewport.height - src->y)) / viewport.height, src->z, 1.0f);
|
|
|
|
screen.x = screen.x * 2.0f - 1.0f;
|
|
|
|
screen.y = screen.y * 2.0f - 1.0f;
|
|
|
|
screen.z = screen.z * 2.0f - 1.0f;
|
|
|
|
|
|
|
|
getViewProjectionMatrix().getInversed().transformVector(screen, &screen);
|
|
|
|
if (screen.w != 0.0f)
|
|
|
|
{
|
|
|
|
screen.x /= screen.w;
|
|
|
|
screen.y /= screen.w;
|
|
|
|
screen.z /= screen.w;
|
|
|
|
}
|
|
|
|
|
|
|
|
dst->set(screen.x, screen.y, screen.z);
|
|
|
|
}
|
|
|
|
|
2014-12-16 16:34:35 +08:00
|
|
|
void Camera::enableFrustumCull(bool bEnalbe, bool bClipZ)
|
|
|
|
{
|
|
|
|
_enableFrustumCull = bEnalbe;
|
|
|
|
_frustum.setClipZ(bClipZ);
|
|
|
|
}
|
|
|
|
|
|
|
|
bool Camera::visibleInFrustum(const AABB& aabb) const
|
|
|
|
{
|
|
|
|
if (_enableFrustumCull)
|
|
|
|
{
|
|
|
|
if (_frustumDirty)
|
|
|
|
{
|
|
|
|
_frustum.initFrustum(this);
|
|
|
|
_frustumDirty = false;
|
|
|
|
}
|
|
|
|
return !_frustum.isOutFrustum(aabb);
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2014-08-07 15:23:31 +08:00
|
|
|
void Camera::onEnter()
|
|
|
|
{
|
|
|
|
if (_scene == nullptr)
|
|
|
|
{
|
2014-08-08 11:49:59 +08:00
|
|
|
auto scene = getScene();
|
|
|
|
if (scene)
|
|
|
|
setScene(scene);
|
2014-08-07 15:23:31 +08:00
|
|
|
}
|
|
|
|
Node::onEnter();
|
|
|
|
}
|
|
|
|
|
|
|
|
void Camera::onExit()
|
|
|
|
{
|
|
|
|
// remove this camera from scene
|
|
|
|
setScene(nullptr);
|
|
|
|
Node::onExit();
|
|
|
|
}
|
|
|
|
|
|
|
|
void Camera::setScene(Scene* scene)
|
|
|
|
{
|
|
|
|
if (_scene != scene)
|
|
|
|
{
|
|
|
|
//remove old scene
|
|
|
|
if (_scene)
|
|
|
|
{
|
|
|
|
auto& cameras = _scene->_cameras;
|
|
|
|
auto it = std::find(cameras.begin(), cameras.end(), this);
|
|
|
|
if (it != cameras.end())
|
|
|
|
cameras.erase(it);
|
|
|
|
_scene = nullptr;
|
|
|
|
}
|
|
|
|
//set new scene
|
|
|
|
if (scene)
|
|
|
|
{
|
|
|
|
_scene = scene;
|
|
|
|
auto& cameras = _scene->_cameras;
|
|
|
|
auto it = std::find(cameras.begin(), cameras.end(), this);
|
|
|
|
if (it == cameras.end())
|
|
|
|
_scene->_cameras.push_back(this);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
NS_CC_END
|