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Add frustum clipping #11

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69b8ef8
chapter9_10: the frustum clipping.
Jan 5, 2015
c5ef688
wrong word.
Jan 5, 2015
42fae03
remove DrawNode3D.h include.
Jan 5, 2015
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25 changes: 19 additions & 6 deletions src/chapter9/Chapter9.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@
#include "Chapter9_7.h"
#include "Chapter9_8.h"
#include "Chapter9_9.h"
#include "Chapter9_10.h"

USING_NS_CC;

Expand Down Expand Up @@ -73,7 +74,7 @@ bool Chapter9::init()

mainmenu->addChild(menuItem,2);
mainmenu->setPosition(Vec2::ZERO);

// add "Sprite3D skeleton animation"
itemlabel = LabelTTF::create("3D skeleton animation", "Arial", 24);
menuItem = MenuItemLabel::create(itemlabel);
Expand All @@ -85,7 +86,7 @@ bool Chapter9::init()

mainmenu->addChild(menuItem,2);
mainmenu->setPosition(Vec2::ZERO);


// add "Attach weapon"
itemlabel = LabelTTF::create("Attach weapon", "Arial", 24);
Expand All @@ -110,7 +111,7 @@ bool Chapter9::init()

mainmenu->addChild(menuItem,2);
mainmenu->setPosition(Vec2::ZERO);

// add "Test camera"
itemlabel = LabelTTF::create("Camera", "Arial", 24);
menuItem = MenuItemLabel::create(itemlabel);
Expand All @@ -122,7 +123,7 @@ bool Chapter9::init()

mainmenu->addChild(menuItem,2);
mainmenu->setPosition(Vec2::ZERO);

// add "Test AABB"
itemlabel = LabelTTF::create("AABB", "Arial", 24);
menuItem = MenuItemLabel::create(itemlabel);
Expand All @@ -146,7 +147,7 @@ bool Chapter9::init()

mainmenu->addChild(menuItem,2);
mainmenu->setPosition(Vec2::ZERO);

// add "Test BillBoard"
itemlabel = LabelTTF::create("BillBoard", "Arial", 24);
menuItem = MenuItemLabel::create(itemlabel);
Expand All @@ -158,7 +159,7 @@ bool Chapter9::init()

mainmenu->addChild(menuItem,2);
mainmenu->setPosition(Vec2::ZERO);

// add "Test BillBoard"
itemlabel = LabelTTF::create("Light", "Arial", 24);
menuItem = MenuItemLabel::create(itemlabel);
Expand All @@ -171,6 +172,18 @@ bool Chapter9::init()
mainmenu->addChild(menuItem,2);
mainmenu->setPosition(Vec2::ZERO);

// add "Frustum Clipping"
itemlabel = LabelTTF::create("Frustum Clipping", "Arial", 24);
menuItem = MenuItemLabel::create(itemlabel);
menuItem->setCallback([&](cocos2d::Ref *sender) {
Director::getInstance()->replaceScene(Chapter9_10::createScene());
});
menuItem->setPosition(Vec2(origin.x+visibleSize.width/2, origin.y+visibleSize.height/2).x,
(Vec2(origin.x+visibleSize.width/2, origin.y+visibleSize.height).y - (++index) * 40));

mainmenu->addChild(menuItem,2);
mainmenu->setPosition(Vec2::ZERO);

// add main menu
this->addChild(mainmenu, 1);

Expand Down
133 changes: 133 additions & 0 deletions src/chapter9/Chapter9_10.cpp
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Original file line number Diff line number Diff line change
@@ -0,0 +1,133 @@
#include "Chapter9_10.h"
#include "Chapter9.h"
#include "DrawNode3D.h"

USING_NS_CC;

Scene* Chapter9_10::createScene()
{
Size visibleSize = Director::getInstance()->getVisibleSize();
Vec2 origin = Director::getInstance()->getVisibleOrigin();
auto winSize = Director::getInstance()->getWinSize();

// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// show draw call
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Director::getInstance()->setDisplayStats(true);

// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// create a scene
// 'scene' is an autorelease object
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
auto scene = Scene::create();

// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// add title
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
auto label = LabelTTF::create("Frustum Clipping", "Arial", 24);
label->setPosition(Vec2(origin.x+visibleSize.width/2, origin.y+visibleSize.height/2).x,
Vec2(origin.x+visibleSize.width/2, origin.y+visibleSize.height).y - 30);
scene->addChild(label, 0);
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// add zoom in button
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
label = LabelTTF::create("zoom in", "Arial", 24);
label->setPosition(winSize.width - 50, origin.y - 100);
scene->addChild(label, 0);


// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// add 3d layer
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
auto layer3D = Layer::create();
scene->addChild(layer3D,2);

// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// add camera
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
static Camera* camera = nullptr;
if (camera == nullptr) {
camera = Camera::createPerspective(60, (GLfloat)winSize.width/winSize.height, 1, 500);
camera->setCameraFlag(CameraFlag::USER1);// set camera flag
camera->setPosition3D(Vec3(0, 100, 200));
camera->lookAt(Vec3(0, 0, 0), Vec3(0, 1, 0));
layer3D->addChild(camera);
}

// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// open frustum clipping
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
camera->enableFrustumCulling(true, true);

// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// add the menu item for back to main menu
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
label = LabelTTF::create("MainMenu", "Arial", 24);
auto menuItemMain = MenuItemLabel::create(label);
menuItemMain->setPosition( Vec2(origin.x + visibleSize.width - 80, origin.y + 25) );
menuItemMain->setCallback([&](cocos2d::Ref *sender) {
Director::getInstance()->replaceScene(Chapter9::createScene());
Director::getInstance()->setDisplayStats(false);
camera = nullptr;
});

// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// add zoom out button
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
label = LabelTTF::create("Zoom Out", "Arial", 34);
auto menuItemZoomOut = MenuItemLabel::create(label);
menuItemZoomOut->setPosition( winSize.width - 80, origin.y + visibleSize.height - 100 );
menuItemZoomOut->setCallback([&](cocos2d::Ref *sender) {
Vec3 dir = camera->getPosition3D() - Vec3::ZERO;
Vec3 cameraPos = camera->getPosition3D();
if(dir.length() <= 300)
{
dir.normalize();
cameraPos += dir * 5;
camera->setPosition3D(cameraPos);
}
});

// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// add zoom in button
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
label = LabelTTF::create("Zoom In", "Arial", 34);
auto menuItemZoomIn = MenuItemLabel::create(label);
menuItemZoomIn->setPosition( winSize.width - 80, origin.y + visibleSize.height - 140 );
menuItemZoomIn->setCallback([&](cocos2d::Ref *sender) {
Vec3 dir = camera->getPosition3D() - Vec3::ZERO;
Vec3 cameraPos = camera->getPosition3D();
if(cameraPos.length() >= 50)
{
dir.normalize();
cameraPos -= dir * 5;
camera->setPosition3D(cameraPos);
}
});

auto menuMain = Menu::create(menuItemMain, menuItemZoomOut, menuItemZoomIn, nullptr);
menuMain->setPosition( Vec2::ZERO );
scene->addChild(menuMain, 1);

// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// add sprite3D
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
const int NUM(5);
for (int x = -NUM; x < NUM; x++)
{
for (int z = -NUM; z < NUM; z++)
{
auto sprite = Sprite3D::create("orc.c3b");
sprite->setPosition3D(Vec3(x * 30, 0, z * 30));
sprite->setRotation3D(Vec3(0, 180, 0));
layer3D->addChild(sprite);
}
}

layer3D->setCameraMask((unsigned short)CameraFlag::USER1);

// return the scene
return scene;
}
14 changes: 14 additions & 0 deletions src/chapter9/Chapter9_10.h
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Original file line number Diff line number Diff line change
@@ -0,0 +1,14 @@
#ifndef __CHAPTER_9_10_H__
#define __CHAPTER_9_10_H__

#include "cocos2d.h"

USING_NS_CC;

class Chapter9_10 : public Ref
{
public:
static cocos2d::Scene* createScene();
};

#endif // __CHAPTER_9_10_H__