Qt3 -> Qt4 QGLWidget::renderText problem

[cometlinear]

Hi all,

Over the weekend, I ported my OpenGl application from Qt3 to Qt4. Everything went fine, except that renderText is now rendering the text *behind* my geometry in the projection matrix (perspective). I am still only passing the X and Y coordinates to the function. Again, I did not change anything from Qt3 to Qt4.

Has anyone experienced this? Anyone know the solution? The relevant code is pasted below.



Thanks!! Kindest regards,
-joshua

////////////////////////////////////////////
	//render some text
	//lighting should be disabled before calling this
	//or we won't be able to set the color
	//disable textures
	glDisable(GL_TEXTURE_2D);
	glDisable(GL_LIGHTING);
	QFont my_font("Arial");
	my_font.setPointSize(14);
	//this is a required bug-fix
	my_font.setStyleHint(QFont::AnyStyle, QFont::PreferBitmap);
	glColor4f(1.0, 1.0, 1.0, 1.0);
 
	//if they are viewing the earth/moon system
	//from perspective view then show a label
	if(view == 1){
		renderText(27, 27, "The Earth & Moon from Perspective", my_font);
	}
 
 
	//if they are viewing the earth and moon from the sun
	if(view == 2){
		renderText(27, 27, "The Earth & Moon from the Sun", my_font);
	}
 
 
	//if they are viewing the moon from earth
	//then iterate through the moon_coord_array
	if(view == 3){
 
		//render a label
		renderText(27, 27, "The Moon from the Earth", my_font);
 
		//now make the font size smaller
		my_font.setPointSize(11);
 
		for(int i=0; i<coord_array_index; i++){
			double my_x = moon_coord_array[i].getX();
			double my_y = moon_coord_array[i].getY();
			QString my_label = moon_coord_array[i].getLabel();
			renderText(my_x, my_y, my_label, my_font);
		}
	}
 
 
	//if they are viewing the earth from the moon
	if(view == 4){
		renderText(27, 27, "The Earth from the Moon", my_font);
	}
 
	//re-enable lighting
	glEnable(GL_LIGHTING);
	//enable textures
	glEnable(GL_TEXTURE_2D);
	////////////////////////////////////////////

////////////////////////////////////////////
	//render some text
	//lighting should be disabled before calling this
	//or we won't be able to set the color
	//disable textures
	glDisable(GL_TEXTURE_2D);
	glDisable(GL_LIGHTING);
	QFont my_font("Arial");
	my_font.setPointSize(14);
	//this is a required bug-fix
	my_font.setStyleHint(QFont::AnyStyle, QFont::PreferBitmap);
	glColor4f(1.0, 1.0, 1.0, 1.0);

	//if they are viewing the earth/moon system
	//from perspective view then show a label
	if(view == 1){
		renderText(27, 27, "The Earth & Moon from Perspective", my_font);
	}


	//if they are viewing the earth and moon from the sun
	if(view == 2){
		renderText(27, 27, "The Earth & Moon from the Sun", my_font);
	}


	//if they are viewing the moon from earth
	//then iterate through the moon_coord_array
	if(view == 3){

		//render a label
		renderText(27, 27, "The Moon from the Earth", my_font);

		//now make the font size smaller
		my_font.setPointSize(11);

		for(int i=0; i<coord_array_index; i++){
			double my_x = moon_coord_array[i].getX();
			double my_y = moon_coord_array[i].getY();
			QString my_label = moon_coord_array[i].getLabel();
			renderText(my_x, my_y, my_label, my_font);
		}
	}


	//if they are viewing the earth from the moon
	if(view == 4){
		renderText(27, 27, "The Earth from the Moon", my_font);
	}

	//re-enable lighting
	glEnable(GL_LIGHTING);
	//enable textures
	glEnable(GL_TEXTURE_2D);
	////////////////////////////////////////////

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