Manual de Apoio 2010

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private GLVector lightPos = new GLVector ( -10f, 5f, 5f, 1f);private float whiteLight [] = { 0.05f, 0.05f, 0.05f, 1.0 f };private float sourceLight [] = { 0.25f, 0.25f, 0.25f, 1.0 f };private CGEngine e;private TGAImage img ;private ByteBuffer bb;private GLVector cTop ;private GLVector cBackLeft ;private GLVector cBackRight ;private GLVector cFrontRight ;private GLVector cFrontLeft ;public static void main ( String [] args ) {new Pyramid ();}public Pyramid () {super (" Modelo OpenGL ");setUndecorated ( true );setDefaultCloseOperation ( JFrame . EXIT_ON_CLOSE );setSize (600 , 600);Container p = getContentPane ();BorderLayout l = new BorderLayout (5 , 5);p. setLayout (l);canvas = new GLCanvas ();p. add ( canvas , BorderLayout . CENTER );canvas . addGLEventListener ( this );GLVector location = new GLVector (1f, 1f, 1f);e = new CGEngine ( canvas , location );e. camera (). lookAt (0f, 1f, 0f);setVisible ( true );canvas . requestFocus ();}animator = new FPSAnimator ( canvas , 25);animator . start ();@Overridepublic void dispose ( GLAutoDrawable drawable ) {}@Overridepublic void init ( GLAutoDrawable drawable ) {GL2 gl = drawable . getGL (). getGL2 ();// Fundo Pretogl. glClearColor (0f, 0f, 0f, 1f);gl. glEnable ( GL2 . GL_CULL_FACE ); // Nao calcular dentro dos objectosgl. glFrontFace ( GL2 . GL_CCW ); // Poligonos CCW tem a face para foragl. glEnable ( GL2 . GL_DEPTH_TEST ); // Remocao de Superficies Escondidas123
Activar as Luzesgl. glEnable ( GL2 . GL_LIGHTING );// Configurar e Activar a luzgl. glLightModelfv ( GL2 . GL_LIGHT_MODEL_AMBIENT , whiteLight , 0);gl. glLightfv ( GL2 . GL_LIGHT0 , GL2 . GL_AMBIENT , sourceLight , 0);gl. glLightfv ( GL2 . GL_LIGHT0 , GL2 . GL_DIFFUSE , sourceLight , 0);gl. glLightfv ( GL2 . GL_LIGHT0 , GL2 . GL_POSITION , lightPos . toArray () , 0);gl. glEnable ( GL2 . GL_LIGHT0 );// Activar o Color Trackinggl. glEnable ( GL2 . GL_COLOR_MATERIAL );// Propriedades dos materiais obedecem ’a luzgl. glColorMaterial ( GL2 . GL_FRONT , GL2 . GL_AMBIENT_AND_DIFFUSE );// Carregar e Ler a imagem para a nossa texturatry {InputStream stream = Pyramid . class . getResourceAsStream (" stone . tga ");img = TGAImage . read ( stream );bb = img . getData ();stream . close ();} catch ( IOException e) {e. printStackTrace ();}gl. glTexImage2D ( GL2 . GL_TEXTURE_2D , 0, GL2 . GL_RGBA ,img . getWidth () , img . getHeight () ,0, img . getGLFormat () , GL2 . GL_UNSIGNED_BYTE , bb );// Parametros da textura ( ignorar para ja)gl. glTexParameteri ( GL2 . GL_TEXTURE_2D ,GL2 . GL_TEXTURE_MIN_FILTER , GL2 . GL_LINEAR );gl. glTexParameteri ( GL2 . GL_TEXTURE_2D ,GL2 . GL_TEXTURE_MAG_FILTER , GL2 . GL_LINEAR );gl. glTexParameteri ( GL2 . GL_TEXTURE_2D ,GL2 . GL_TEXTURE_WRAP_S , GL2 . GL_CLAMP_TO_EDGE );gl. glTexParameteri ( GL2 . GL_TEXTURE_2D ,GL2 . GL_TEXTURE_WRAP_T , GL2 . GL_CLAMP_TO_EDGE );// Configuracao do Texture Environmentgl. glTexEnvi ( GL2 . GL_TEXTURE_ENV ,GL2 . GL_TEXTURE_ENV_MODE , GL2 . GL_MODULATE );// Activar as texturasgl. glEnable ( GL2 . GL_TEXTURE_2D );// Cantos da PiramidecTop = new GLVector (0.0f, .80f, 0.0 f);cBackLeft = new GLVector ( -0.5f, 0.0f, -.50f);cBackRight = new GLVector (0.5f, 0.0f, -0.50 f);cFrontRight = new GLVector (0.5f, 0.0f, 0.5 f);cFrontLeft = new GLVector ( -0.5f, 0.0f, 0.5 f);}private float yRot = 0f;@Overridepublic void display ( GLAutoDrawable drawable ) {GL2 gl = drawable . getGL (). getGL2 ();yRot += .1f;if( yRot >= GlTools . GL_PI * 2f)yRot = 0;124
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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
Page 25 and 26:
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
Page 43 and 44:
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
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OperationGL ACCUMGL LOADGL MULTGL A
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Capítulo 7Imagens no OpenGL7.1 Bit
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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 and 118: Apêndice CCódigo FonteC.1 Example
Page 119 and 120: gl. glPushMatrix ();gl. glLightfv (
Page 121 and 122: public void init ( GLAutoDrawable d
Page 123: Reverter as ( possiveis ) transform
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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