Question

我在vs2013上写了一个图形项目，但是那时我还好，但我不得不回到2010年。

现在我已经完成了在我有多个纹理渲染之前，只有一个纹理会渲染到屏幕上。

我有背景和球员。我将纹理加载到背景中：

background = new GLuint(loadPNG("images/Background/Background.png"));
playerDown = loadPNG("images/playerDown.png");



GLuint Game::loadPNG(char * name)


nv::Image img;

GLuint myTextureID;

// Return true on success
if (img.loadImageFromFile(name))
{
    glGenTextures(1, &myTextureID);
    glBindTexture(GL_TEXTURE_2D, myTextureID);
    glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
    glTexImage2D(GL_TEXTURE_2D, 0, img.getInternalFormat(), img.getWidth(), img.getHeight(), 0, img.getFormat(), img.getType(), img.getLevel(0));
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 16.0f);
}

else
    //MessageBox(NULL, "Failed to load texture", "End of the world", MB_OK | MB_ICONINFORMATION);

return myTextureID;



glLoadIdentity();

glBindTexture(GL_TEXTURE_2D, *background);
glPushMatrix();

glBegin(GL_POLYGON);
glTexCoord2f(1.0, 1.0); glVertex2f(gameWidth, gameHeight);
glTexCoord2f(0.0, 1.0); glVertex2f(0, gameHeight);
glTexCoord2f(0.0, 0.0); glVertex2f(0, 0);
glTexCoord2f(1.0, 0.0); glVertex2f(gameWidth , 0);
glEnd();
glPopMatrix();



glTranslatef(xMovement, yMovement, 0.f);


player->draw();


    void Entity::draw()
{
    glEnable(GL_TEXTURE_2D);
    glBindTexture(GL_TEXTURE_2D, texture);

    glPushMatrix();

    glTranslatef(m_X, m_Y, 0);
    glBegin(GL_POLYGON);
    glTexCoord2f(0.0, 1.0); glVertex2f(m_Width, m_Height);
    glTexCoord2f(1.0, 1.0); glVertex2f(0, m_Height);
    glTexCoord2f(1.0, 0.0); glVertex2f(0, 0);
    glTexCoord2f(0.0, 0.0); glVertex2f(m_Width, 0);
    glEnd();
    glPopMatrix();
}

我是C ++的新手，但我对它在vs2013中的运作方式感到困惑，但是当我改为2010年时，它现在只会在绘制时显示一个纹理

在openGL中只有一个纹理渲染

0 个答案: