2020電腦圖學A: (*^ω^*) 喵～Week13

➽解釋 CodeBlocks 專案檔裡的檔案

為什麼CBP檔是"不明應用程式"?

設定如下

不明應用程式

設定位置

設定步驟

成功~

專案檔裡的[bin][obj]資料夾是什麼?

[obj]資料夾裡有[main.o]，[bin]資料夾裡有[week13.exe]
關係如下:
[main.cpp]先變成⭆[main.o]再變⭆[week13.exe]
結論:可以刪除!!再次執行build時，會自動生成這兩個資料夾

為什麼檔案(圖檔、音檔)都必須放到[freeglut\bin]?很奇怪!!

原因:

因為需要[freeglut.dll]

解決方法:

用NotePab++開啟專案檔裡的CBP檔
找到2行"C:\Users\Administrator\Desktop\freeglut\bin"⭆改成"."

把[freeglut.dll]複製進專案資料夾裡⭆以後都能自給自足了

➽試著在改造完的執行目錄裡放入模型並成功讀取

將模型檔(.obj和.mtl)拉入專案資料夾裡，跟[freeglut.dll]同層
改寫程式碼

#include <GL/glut.h>
#include "glm.h"
GLMmodel * model=NULL;
///把打光的陣列準備好
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 };
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("al.obj");
glmUnitize(model);///單位向量(+1...-1)
glmFacetNormals(model);//重算(面)法向量
glmVertexNormals(model, 90);//重算(頂點vn)法向量
}
glPushMatrix();
glRotatef(180,0,1,0);//轉正
glmDraw(model,GLM_SMOOTH|GLM_MATERIAL);
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char *argv[])
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week13");
glutDisplayFunc(display);
///打光函式
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();
}

成功

➽複習:加入T-R-T(車車轉動)

重點1:利用函式，簡化程式碼
重點2:匯入新模型(車車)，使其隨滑鼠轉動
重點3:放到正確的位置

#include <GL/glut.h>
#include "glm.h"
GLMmodel * model=NULL;
GLMmodel * model2=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 };
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 drawBody()
{
if(model==NULL){
model = glmReadOBJ("Al.obj");
glmUnitize(model);
glmFacetNormals(model);
glmVertexNormals(model, 90);
glPushMatrix();
glScalef(0.8, 0.8, 0.8);
glRotatef(180, 0,1,0);
glmDraw(model, GLM_SMOOTH | GLM_MATERIAL);
glPopMatrix();
}
void drawArm()
{
if(model2==NULL){
model2 = glmReadOBJ("porsche.obj");
glmUnitize(model2);
}
glPushMatrix();
glScalef(0.2, 0.2, 0.2);
glRotatef(90, 0,1,0);
glmDraw(model2, GLM_SMOOTH | GLM_MATERIAL);
glPopMatrix();
}
float angle=0;
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
drawBody();
glPushMatrix();
glTranslatef(0.3, 0.3, 0);///(3)等一下要掛在哪裡
glRotatef(angle, 0,0,1);/// (1) 有個轉動
glTranslatef(0.2, 0, 0);/// (2) 移動轉動的中心
drawArm();
glPopMatrix();
glutSwapBuffers();
}
void motion(int x, int y)///隨滑鼠移動
{
angle = x;
glutPostRedisplay();
}
int main(int argc, char *argv[])
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("Week13");
glutDisplayFunc(display);
glutMotionFunc(motion);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LESS);
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();
}

更多更多的車車

在display()裡加入程式碼
glPushMatrix();/// 右手臂
glTranslatef(0.3, 0.3, 0);
glRotatef(angle, 0,0,1);
glTranslatef(0.2, 0, 0);
drawArm();///右上手臂
glPushMatrix();
glTranslatef(0.2,0,0);
glRotatef(angle, 0,0,1);
glTranslatef(0.2, 0, 0);
drawArm();///右下手臂
glPopMatrix();
glPopMatrix();
glPushMatrix();/// 左手臂
glTranslatef(-0.3, 0.3, 0);
glRotatef(angle, 0,0,1);
glTranslatef(-0.2, 0, 0);
drawArm();///左上手臂
glPushMatrix();
glTranslatef(-0.2,0,0);
glRotatef(angle, 0,0,1);
glTranslatef(-0.2, 0, 0);
drawArm();/// 左下手臂
glPopMatrix();
glPopMatrix();

➽機器人2.0

可以指定關節轉動!!

#include <GL/glut.h>
#include "glm.h"
GLMmodel * model=NULL;
GLMmodel * model2=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 };
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 drawBody()
{
if(model==NULL){
model = glmReadOBJ("Al.obj");
glmUnitize(model);.
glmFacetNormals(model);
glmVertexNormals(model, 90);
}
glPushMatrix();
glScalef(0.8, 0.8, 0.8);
glRotatef(180, 0,1,0);
glmDraw(model, GLM_SMOOTH | GLM_MATERIAL);
glPopMatrix();
}
void drawArm()
{
if(model2==NULL){
model2 = glmReadOBJ("porsche.obj");
glmUnitize(model2);
}
glPushMatrix();
glScalef(0.2, 0.2, 0.2);
glRotatef(90, 0,1,0);
glmDraw(model2, GLM_SMOOTH | GLM_MATERIAL);
glPopMatrix();
}
float angle[4]={0,0,0,0};///變成很多個陣列!!!
int angleID=0;///現在在動的,是哪一個關節呢?
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
drawBody();
glPushMatrix();/// 右手臂
glTranslatef(0.3, 0.3, 0);
glRotatef(angle[0], 0,0,1);
glTranslatef(0.2, 0, 0);
drawArm();///右上手臂
glPushMatrix();
glTranslatef(0.2,0,0);
glRotatef(angle[1], 0,0,1);
glTranslatef(0.2, 0, 0);
drawArm();///右下手臂
glPopMatrix();
glPopMatrix();
glPushMatrix();/// 左手臂
glTranslatef(-0.3, 0.3, 0);
glRotatef(angle[2], 0,0,1);
glTranslatef(-0.2, 0, 0);
drawArm();///左上手臂
glPushMatrix();
glTranslatef(-0.2,0,0);
glRotatef(angle[3], 0,0,1);
glTranslatef(-0.2, 0, 0);
drawArm();/// 左下手臂
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int oldX, oldY;
void mouse(int button, int state, int x, int y)
{
oldX=x; oldY=y;
}
void motion(int x, int y)
{
angle[angleID] += (x-oldX);
oldX = x;
glutPostRedisplay();
}
void keyboard(unsigned char key, int x, int y)///按鍵盤數字控制關節
{
if(key=='0') angleID=0;
if(key=='1') angleID=1;
if(key=='2') angleID=2;
if(key=='3') angleID=3;
}
int main(int argc, char *argv[])
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("Week13");
glutDisplayFunc(display);
glutMotionFunc(motion);
glutMouseFunc(mouse);
glutKeyboardFunc(keyboard);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LESS);
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();
}

[0]右上手臂[1]右下手臂[2]左上手臂[3]左下手臂

2020電腦圖學A

2020年5月20日星期三

(^ω^) 喵～Week13

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2020年5月20日 星期三

(*^ω^*) 喵～Week13

沒有留言:

張貼留言

2020年5月20日星期三

(^ω^) 喵～Week13