Manual de Apoio 2010

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public Example0 () {super (" Modelo OpenGL ");setUndecorated ( true );setDefaultCloseOperation ( JFrame . EXIT_ON_CLOSE );setSize (600 , 600);canvas = new GLCanvas ();add ( canvas , BorderLayout . CENTER );canvas . addGLEventListener ( this );GLVector location = new GLVector (0f, .5f, .5f);new CGEngine ( canvas , location );setVisible ( true );canvas . requestFocus ();}FPSAnimator animator = new FPSAnimator ( canvas , 25);animator . start ();public void dispose ( GLAutoDrawable drawable ) {}@Overridepublic void init ( GLAutoDrawable drawable ) {GL2 gl = drawable . getGL (). getGL2 ();}// Grayish backgroundgl. glClearColor ( fLowLight [0] , fLowLight [1] , fLowLight [2] , fLowLight [3]);// Cull backs of polygonsgl. glCullFace ( GL2 . GL_BACK );gl. glFrontFace ( GL2 . GL_CCW );gl. glEnable ( GL2 . GL_CULL_FACE );gl. glEnable ( GL2 . GL_DEPTH_TEST );spherePositions = GlUtil . generateRandomPositions ( FloorSize , NumSpheres );setupLight (gl );private void setupLight ( GL2 gl) {// Setup light parametersgl. glLightModelfv ( GL2 . GL_LIGHT_MODEL_AMBIENT , fNoLight , 0);gl. glLightfv ( GL2 . GL_LIGHT0 , GL2 . GL_AMBIENT , fLowLight , 0);gl. glLightfv ( GL2 . GL_LIGHT0 , GL2 . GL_DIFFUSE , fBrightLight , 0);gl. glLightfv ( GL2 . GL_LIGHT0 , GL2 . GL_SPECULAR , fBrightLight , 0);gl. glEnable ( GL2 . GL_LIGHTING );gl. glEnable ( GL2 . GL_LIGHT0 );}// Mostly use material trackinggl. glEnable ( GL2 . GL_COLOR_MATERIAL );gl. glColorMaterial ( GL2 . GL_FRONT , GL2 . GL_AMBIENT_AND_DIFFUSE );gl. glMateriali ( GL2 . GL_FRONT , GL2 . GL_SHININESS , 128);@Overridepublic void display ( GLAutoDrawable drawable ) {GL2 gl = drawable . getGL (). getGL2 ();gl. glClear ( GL2 . GL_COLOR_BUFFER_BIT | GL2 . GL_DEPTH_BUFFER_BIT );gl. glMaterialfv ( GL2 . GL_FRONT , GL2 . GL_SPECULAR , fBrightLight , 0);117
gl. glPushMatrix ();gl. glLightfv ( GL2 . GL_LIGHT0 , GL2 . GL_POSITION , fLightPos . toArray () , 0);// Desenhar um Torus Verdegl. glColor3f (0 , 1f, 0);drawWorld (gl );}gl. glColor4f (0.60f, .40f, .10f, .5f);GlUtil . drawGround ( FloorSize , 1f);gl. glPopMatrix ();private void drawWorld ( GL2 gl) {// Desenhar o Torusgl. glPushMatrix ();gl. glTranslatef (0 , .5f, 0);glut . glutSolidTorus (.1f, .2f, 61 , 37);gl. glPopMatrix ();}// Desenhar esferas aleatoriamentefor ( GLVector s : spherePositions ) {gl. glPushMatrix ();gl. glTranslatef (s.x() , s.y() , s.z ());glut . glutSolidSphere (s.w() , 20 , 10);gl. glPopMatrix ();}@Overridepublic void reshape ( GLAutoDrawable drawable , int x, int y, int width , int height ) {GL2 gl = drawable . getGL (). getGL2 ();if ( height == 0) height = 1;gl. glViewport (0 , 0, canvas . getSize (). width , canvas . getSize (). height );gl. glMatrixMode ( GL2 . GL_PROJECTION );gl. glLoadIdentity ();float volume = 100 f;float fAspect = ( float ) width / ( float ) height ;glu . gluPerspective (100f, fAspect , .001f, volume * 5f);}}C.2 Imaging.javapackage pt.ipb . esact .cg. examples ;import java . awt . BorderLayout ;import java . awt . event . KeyAdapter ;import java . awt . event . KeyEvent ;import java .io. IOException ;import java .io. InputStream ;import java . nio . ByteBuffer ;import java . nio . FloatBuffer ;import java . nio . IntBuffer ;import javax . media . opengl . GL2 ;import javax . media . opengl . GLAutoDrawable ;import javax . media . opengl . GLEventListener ;import javax . media . opengl . awt . GLCanvas ;import javax . media . opengl . glu . GLU ;import javax . swing . JFrame ;118
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Computação GráficaManual de Apoi
Page 3 and 4:
4.3.5 Regras na Criação de Políg
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ConvençõesNa medida dos possívei
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1.2 Efeitos 3DUma palavra a ter em
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Figura 1.3: Duas perspectivas difer
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1.3.5 Viewport TransformationsNo fi
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Figura 2.2: Duas zonas de clipping
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Figura 2.7: O clipping volume de um
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Tipo Interno OpenGL Tipo em C Sufix
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O passo final consiste no mapeament
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Figura 3.7: Duas Esferasgl. glTrans
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Figura 3.11: FrustrumA definição
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Capítulo 4Primitivas Geométricas
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Figura 4.3: Explicação da espiral
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Figura 4.5: Desenho com GL LINESFig
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float y, curwidth = widths [0];gl.
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gl. glVertex2f (0f, 0f); // V 0gl.
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4.3.2 Tiras de Quadrados:GL QUAD ST
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4.3.5 Regras na Criação de Políg
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GL2 gl = drawable . getGL (). getGL
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A luz vista como uma partículaA co
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5.2 Utilização de Cores no OpenGL
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5.3 Cores no Mundo RealO shading do
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Ao desenhar objectos, o OpenGL deci
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Figura 5.15: Polígono após defini
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Vectores Normais às SuperfíciesO
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Figura 5.21: Um vector normal não
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classe GLVector fornece o método t
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(a) Normais perpendiculares a cada
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Capítulo 6Cores e Materiais (Conti
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Desenhar um Torus Verdegl. glColor4
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Da mesma forma que deifinimos a fun
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Figura 6.6: NevoeiroA configuraçã
Page 67 and 68: OperationGL ACCUMGL LOADGL MULTGL A
Page 69 and 70: Capítulo 7Imagens no OpenGL7.1 Bit
Page 71 and 72: transformados em fragmentos (pixel)
Page 73 and 74: Figura 7.4: Utilização de glDrawP
Page 75 and 76: 7.4 Outras Operações com ImagensP
Page 77 and 78: EmbossA matriz utilizada para o efe
Page 79 and 80: Capítulo 8Mapeamento de TexturasNa
Page 81 and 82: Figura 8.2: Pipeline - Carregamento
Page 83 and 84: (a) Textura bi-dimensional aplicada
Page 85 and 86: 8.4 Texture EnvironmentNo exemplo P
Page 87 and 88: 8.5.2 Texture WrapNormalmente espec
Page 89 and 90: imagem da textura. A biblioteca GLU
Page 91 and 92: Capítulo 9Mapeamento de Texturas:
Page 93 and 94: Fazer o bind do estado da textura a
Page 95 and 96: Onde x, y, z e w são as coordenada
Page 97 and 98: Figura 9.6: Sphere MapFigura 9.7: C
Page 99 and 100: O valor utilizado no primeiro argum
Page 101 and 102: Capítulo 10Curvas e Superfícies10
Page 103 and 104: 10.1.2 Desenho de Superfícies Quá
Page 105 and 106: (a) inner=0(b) inner=0.25Figura 10.
Page 107 and 108: A curva da Figura 10.10b é uma cur
Page 109 and 110: Figura 10.12: Curva de Bézier 2D10
Page 111 and 112: Figura 10.14: Superfície de Bézie
Page 113 and 114: Desenhar Geometria (3)gl. glEndList
Page 115 and 116: Apêndice BTabelasB.1 Formato de Im
Page 117: Apêndice CCódigo FonteC.1 Example
Page 121 and 122: public void init ( GLAutoDrawable d
Page 123 and 124: Reverter as ( possiveis ) transform
Page 125 and 126: Activar as Luzesgl. glEnable ( GL2
Page 127 and 128: gl. glTexCoord2f (0f, 0f);cBackRigh
Page 129 and 130: @Overridepublic void dispose ( GLAu
Page 131 and 132: }}return img ;@Overridepublic void
Page 133 and 134: private float fLowLight [] = { 0.25
Page 135 and 136: Carregar e Ler a imagem para a noss
Page 137 and 138: gl. glBindTexture ( GL2 . GL_TEXTUR
Page 139 and 140: }private void setupLight ( GL2 gl)
Page 141 and 142: public class Bezier2D extends JFram
Page 143 and 144: import pt.ipb . esact .cg.gl. GLVec
Page 145 and 146: }glu . gluPerspective (100f, fAspec
Page 147 and 148: ctrlPoints . add (4f, 0f, 0f); // E
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Manual de Apoio 2010

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