week11 Heng's OBJ

用CodeBlocks打開transform視窗

http://www.cmlab.csie.ntu.edu.tw/~jsyeh/3dcg10/

首先跟平常一樣打開codeblock弄好freeglut，下載source裡面選擇transformation、glm.c、glm.h。

(1)將glm.c改成glm.cpp，把glm.h跟glm.cpp放到codeblock資料夾內

(2)下載data丟到freeglut裡的bin

(3)將transformation內容複製(notepad++)丟到codeblock

(4)在codeblock左邊資料新增檔案(右鍵) - glm.cpp

(5)完成

#include <GL/glut.h>

#include "glm.h"

GLMmodel * model=NULL;

const GLfloat light_ambient[]  = { 0.0f, 0.0f, 0.0f, 1.0f };

const GLfloat light_diffuse[]  = { 1.0f, 1.0f, 1.0f, 1.0f };

const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };

const GLfloat light_position[] = { 2.0f, 5.0f, -5.0f, 0.0f };  ///決定燈光從哪裡來

const GLfloat mat_ambient[]    = { 0.7f, 0.7f, 0.7f, 1.0f };

const GLfloat mat_diffuse[]    = { 0.8f, 0.8f, 0.8f, 1.0f };

const GLfloat mat_specular[]   = { 1.0f, 1.0f, 1.0f, 1.0f };

const GLfloat high_shininess[] = { 100.0f };

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    if(model==NULL)

    {

        model = glmReadOBJ("data/Al.obj"); ///匯入maya

        glmUnitize(model);

        glmFacetNormals(model);

        glmVertexNormals(model,90);

    }

    glmDraw(model,GLM_SMOOTH | GLM_MATERIAL);

    glutSwapBuffers();

}

int main(int argc, char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week 10");

    glutDisplayFunc(display);

    glEnable(GL_DEPTH_TEST);

    glEnable(GL_LIGHT0);

    glEnable(GL_NORMALIZE);

    glEnable(GL_COLOR_MATERIAL);

    glEnable(GL_LIGHTING);

    glLightfv(GL_LIGHT0, GL_AMBIENT,  light_ambient);

    glLightfv(GL_LIGHT0, GL_DIFFUSE,  light_diffuse);

    glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);

    glLightfv(GL_LIGHT0, GL_POSITION, light_position);

    glMaterialfv(GL_FRONT, GL_AMBIENT,   mat_ambient);

    glMaterialfv(GL_FRONT, GL_DIFFUSE,   mat_diffuse);

    glMaterialfv(GL_FRONT, GL_SPECULAR,  mat_specular);

    glMaterialfv(GL_FRONT, GL_SHININESS, high_shininess);

    glutMainLoop();

}

maya(obj檔)丟入freeglut裡的bin

#include <GL/glut.h>

#include"glm.h"

GLMmodel * model=NULL;

GLMmodel * mode2=NULL;

GLMmodel * mode3=NULL;

GLMmodel * mode4=NULL;

///打光的第0步,宣告陣列,裡面有光的屬性值

const GLfloat light_ambient[]  = { 0.0f, 0.0f, 0.0f, 1.0f };

const GLfloat light_diffuse[]  = { 1.0f, 1.0f, 1.0f, 1.0f };

const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };

const GLfloat light_position[] = { 2.0f, 3.0f, -5.0f, 0.0f };

const GLfloat mat_ambient[]    = { 0.7f, 0.7f, 0.7f, 1.0f };

const GLfloat mat_diffuse[]    = { 0.8f, 0.8f, 0.8f, 1.0f };

const GLfloat mat_specular[]   = { 1.0f, 1.0f, 1.0f, 1.0f };

const GLfloat high_shininess[] = { 100.0f };

float angle=80;

int dx=1;

void display()

{

    glClearColor(231/255.0, 231/255.0, 254/255.0, 1);///淡紫背景

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    if(model==NULL){

        model = glmReadOBJ("data/body_obj.obj");

        glmUnitize(model);

        glmFacetNormals(model);

        glmVertexNormals(model,90);

    }

     glPushMatrix();

        glRotatef(90,0,1,0);

          glScalef(1,1,1);

        glmDraw(model,GLM_SMOOTH | GLM_MATERIAL);

    glPopMatrix();

    ///

      if(mode2==NULL){///右左下手

        mode2 = glmReadOBJ("data/tophand.obj");

        glmUnitize(mode2);

        glmFacetNormals(mode2);

        glmVertexNormals(mode2,90);

    }

     if(mode3==NULL){///右上手

        mode3 = glmReadOBJ("data/righttop.obj");

        glmUnitize(mode3);

        glmFacetNormals(mode3);

        glmVertexNormals(mode3,90);

    }

    if(mode4==NULL){///左上手

        mode4 = glmReadOBJ("data/lefttop.obj");

        glmUnitize(mode4);

        glmFacetNormals(mode4);

        glmVertexNormals(mode4,90);

    }

      glPushMatrix();///右邊

            glTranslatef(0.25,0.05,0);///把下面正在轉動的手臂移到右上角

            glRotatef(angle, 0, 0, 1.5);///對Z軸轉動,像時針一樣轉動

            glTranslatef(0.2,-0.3,0);///把關節(旋轉中心)放到畫面正中心

            glScalef(0.25,0.25,0.25);

            glmDraw(mode2,GLM_SMOOTH | GLM_MATERIAL);

      glPushMatrix();

            glTranslatef(0.3,-1.55,0);///把下面正在轉動的手臂移到右上角

            glRotatef(angle, 0, 0, 1);///對Z軸轉動,像時針一樣轉動

            glTranslatef(0.8,0,0);///把關節(旋轉中心)放到畫面正中心

            glScalef(0.8,0.8,0.8);

            glmDraw(mode3,GLM_SMOOTH | GLM_MATERIAL);

        glPopMatrix();

    glPopMatrix();

    glPushMatrix();///左邊

            glTranslatef(-0.1,0.05,0);///把下面正在轉動的手臂移到右上角

            glRotatef(-angle, 0, 0, 1.5);///對Z軸轉動,像時針一樣轉動

            glTranslatef(-0.2,-0.3,0);///把關節(旋轉中心)放到畫面正中心

            glScalef(0.25,0.25,0.25);

            glmDraw(mode2,GLM_SMOOTH | GLM_MATERIAL);

      glPushMatrix();

            glTranslatef(-0.3,-1.55,0);///把下面正在轉動的手臂移到右上角

            glRotatef(-angle, 0, 0, 1);///對Z軸轉動,像時針一樣轉動

            glTranslatef(-0.8,0,0);///把關節(旋轉中心)放到畫面正中心

            glScalef(0.8,0.8,0.8);

            glmDraw(mode4,GLM_SMOOTH | GLM_MATERIAL);

        glPopMatrix();

    glPopMatrix();

    if(angle>100) dx=-1;

    if(angle<80)  dx=+1;

    angle+=0.2*(dx);

    glutSwapBuffers();

}

int main(int argc, char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("彈射");

    glutIdleFunc(display);

    glutDisplayFunc(display);

     ///打光也需要Depth test

    glEnable(GL_DEPTH_TEST);

    ///打光1:要開啟光線

    glEnable(GL_LIGHT0);

    glEnable(GL_NORMALIZE);

    glEnable(GL_COLOR_MATERIAL);

    glEnable(GL_LIGHTING);

    ///打光2-1:光LIGHT的設定值(裡面有陣列)

    glLightfv(GL_LIGHT0, GL_AMBIENT,  light_ambient);

    glLightfv(GL_LIGHT0, GL_DIFFUSE,  light_diffuse);

    glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);

    glLightfv(GL_LIGHT0, GL_POSITION, light_position);

    ///打光2-2:把物體MATERIAL也設定好

    glMaterialfv(GL_FRONT, GL_AMBIENT,   mat_ambient);

    glMaterialfv(GL_FRONT, GL_DIFFUSE,   mat_diffuse);

    glMaterialfv(GL_FRONT, GL_SPECULAR,  mat_specular);

    glMaterialfv(GL_FRONT, GL_SHININESS, high_shininess);

    glutMainLoop();

}