OPENGL 什么时候2D纹理会显示不出来

[zhou3724042]

弄了一天了 想请高手帮帮忙 希望可以解答 源码太多贴不上来 如果需要源码 我QQ是110190357

Texture::Texture(char* filename){
	this->m_image = new BMPImage(filename);
	glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
	
    glBindTexture(GL_TEXTURE_2D, this->m_txtname);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, this->m_image->getImageWidth(), this->m_image->getImageHeight(), 
				 0, GL_RGB, GL_UNSIGNED_BYTE, this->m_image->getPixelData());
	
}

Texture::~Texture(){
	delete this->m_image;
}

void Texture::appTexture(){
    glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
	glBindTexture(GL_TEXTURE_2D, this->m_txtname);
}

这个是我封装的Texture类

void GameView::display(){
	
	glPushMatrix();
	glMatrixMode(GL_MODELVIEW);
	glLoadIdentity();
	gluLookAt(10 * cos(this->m_angle), this->m_horizon, 10.0 * sin(this->m_angle), 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
	glScalef(this->m_zoom, this->m_zoom, this->m_zoom);
	
	glMatrixMode(GL_PROJECTION);
	glPushMatrix();
	glLoadIdentity();
	gluPerspective(90.0, (GLfloat)WINDOW_HEIGHT / (GLfloat)WINDOW_WIDTH, 0.0, 1000.0);


	for(GLint i = 0;i < this->m_temple->getWidth();++i){
		for(GLint j = 0;j < this->m_temple->getLength();++j){
			switch(this->m_temple->getLandState(j, i)){
				case LAND_COVERED:
					this->drawCover(j, i);
					break;
				case LAND_UNCOVERED:
					this->drawUncover(j, i);
					break;
				case LAND_ROAD:
					this->drawRoad(j, i);
					break;
				case LAND_STONE:
					this->drawStone(j, i);
					break;

			}
		}
	}
	
	glPopMatrix();

	glMatrixMode(GL_MODELVIEW);
	glPopMatrix();

}

void GameView::drawRoad(GLint x, GLint y){
	glEnable(GL_TEXTURE_2D);
	this->m_landUncover->appTexture();
	glBegin(GL_QUADS);
	glColor3f(1.0, 0.0, 0.0);
	glTexCoord2f(0.0, 0.0);glVertex3f((x - (GLfloat)this->m_temple->getLength() / 2) * LENGTH_PER_SQUARE, 0, (y - (GLfloat)this->m_temple->getWidth() / 2) * LENGTH_PER_SQUARE);
	glTexCoord2f(1.0, 0.0);glVertex3f((x + 1 - (GLfloat)this->m_temple->getLength() / 2) * LENGTH_PER_SQUARE, 0, (y - (GLfloat)this->m_temple->getWidth() / 2) * LENGTH_PER_SQUARE);
	glTexCoord2f(1.0, 1.0);glVertex3f((x + 1 - (GLfloat)this->m_temple->getLength() / 2) * LENGTH_PER_SQUARE, 0, (y + 1 - (GLfloat)this->m_temple->getWidth() / 2) * LENGTH_PER_SQUARE);
	glTexCoord2f(0.0, 1.0);glVertex3f((x - (GLfloat)this->m_temple->getLength() / 2) * LENGTH_PER_SQUARE, 0, (y + 1 - (GLfloat)this->m_temple->getWidth() / 2) * LENGTH_PER_SQUARE);
	glEnd();
	glDisable(GL_TEXTURE_2D);
}这个是绘制的函数

[zhou3724042]

不仅纹理无法显示 点化模式也无法显示

[feilinhe]

1. glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(10 * cos(this->m_angle), this->m_horizon, 10.0 * sin(this->m_angle), 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
glScalef(this->m_zoom, this->m_zoom, this->m_zoom);

2. glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
gluPerspective(90.0, (GLfloat)WINDOW_HEIGHT / (GLfloat)WINDOW_WIDTH, 0.0, 1000.0);
1,2两部分换下位置试试

[hattrick110]

我的也显示不出来，请问怎么回事？

[ghost129]

确认贴图是否存在，是否为bmp格式，大小是否为64*64,128*128,256*256中的一种,载入是否正确

[ghost129]

你drawRoad中glBegin(GL_QUADS);的前面加入
glBindTexture(GL_TEXTURE_2D, this->m_txtname);
这句试试

[VR_Lab]

确认你的位图在当前的目录下？

[月中蓝]

[Quote=引用 5 楼 ghost129 的回复:]
你drawRoad中glBegin(GL_QUADS);的前面加入
 glBindTexture(GL_TEXTURE_2D, this->m_txtname);
这句试试
[/Quote]

UP

[olancome]

你们的弄出来没？
我的也是，整个模型都是显示的一个点的纹理。郁闷哦。

[VR_Lab]

按5楼说的试试

[helocy]

是不是被挡住了，换角度看看？