我在使用类的OpenGL GLUT项目中尝试加载纹理时遇到了问题。 下面是一些包含纹理填充的代码:纹理不会出现 - GLUT OpenGL
从模型类的子类中声明纹理模型。 TextureModel亚类的
TextureModel * title = new TextureModel("Box.obj", "title.raw");
构造方法:
TextureModel(string fName, string tName) : Model(fName), textureFile(tName)
{
material newMat = {{0.63,0.52,0.1,1.0},{0.63,0.52,0.1,1.0},{0.2,0.2,0.05,0.5},10};
Material = newMat;
// enable texturing
glEnable(GL_TEXTURE_2D);
loadcolTexture(textureFile);
glGenTextures(1, &textureRef);
// specify the filtering method
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_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
// associate the image read in to the texture to be applied
gluBuild2DMipmaps(GL_TEXTURE_2D, 3, 256, 256, GL_RGB, GL_UNSIGNED_BYTE, image_array);
}
纹理加载功能在RAW文件中的数据如下:
int loadcolTexture(const string fileName) {
ifstream inFile;
inFile.open(fileName.c_str(), ios::binary);
if (!inFile.good())
{
cerr << "Can't open texture file " << fileName << endl;
return 1;
}
inFile.seekg (0, ios::end);
int size = inFile.tellg();
image_array = new char [size];
inFile.seekg (0, ios::beg);
inFile.read (image_array, size);
inFile.close();
return 0;}
方法绘制三角形:
virtual void drawTriangle(int f1, int f2, int f3, int t1, int t2, int t3, int n1, int n2, int n3)
{
glColor3f(1.0,1.0,1.0);
glBegin(GL_TRIANGLES);
glBindTexture(GL_TEXTURE_2D, textureRef);
glNormal3fv(&normals[n1].x);
glTexCoord2f(textures[t1].u, textures[t1].v);
glVertex3fv(&Model::vertices[f1].x);
glNormal3fv(&normals[n2].x);
glTexCoord2f(textures[t2].u, textures[t2].v);
glVertex3fv(&Model::vertices[f2].x);
glNormal3fv(&normals[n3].x);
glTexCoord2f(textures[t3].u, textures[t3].v);
glVertex3fv(&Model::vertices[f3].x);
glEnd();
}
我也有照明,深度测试和双缓冲启用。
模型和照明工作正常,但纹理不显示。任何它不起作用的原因都会很好。
你至少错过了'TextureModel'构造函数中'glBindTexture'的调用。 – user786653 2012-04-24 16:59:57