我知道如何运用四这样一个矩形纹理glColor3f(1,1,1);
textures[0].setTexture(1);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D,1);;
glBegin(GL_QUADS);
glTexCoord2f(0.0,0.0);
glVertex2f(startx,starty);
glTexCoord2f(1.0,0);
glVertex2f(startx+size,starty);
glTexCoord2f(1.0,1.0);
glVertex2f(startx+size,starty-size);
glTexCoord2f(0,1.0);
glVertex2f(startx,starty-size);
glEnd();
但我想申请这个矩形纹理
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