glut text over ortho shapes

OpenGL OpenGL: Basic Coding
1

hi there,

I was wondering if it is possible to display glut text (via glutBitmapString) over shapes drawn in ortho mode. Would I have to switch out of ortho mode to draw the dynamic text or can I still render the text on top of the other shapes drawn while in ortho mode and thus still use the ortho coord system?

thanks.

2

Hi !

You can switch between perspective and ortho mode whenever you want so it’s no problem.

Mikael

3

So, with glOrtho there is only 1 layer of drawing possible? It’s not possible to adjust the zFar and zNear clipping planes to adjust the z placement of what is being drawn?

I suppose I’m asking as to if I can draw layered items in glOrtho mode a al photoshop.

e.g. in glOrtho mode I draw a quad covering the whole screen, but then want a different coloured quad (or other shape) in the center of the screen to create a picture frames effect.

Is this possible? I want to try and stay in glOrtho mode and draw as much as possible as it’s very fast.

Thanks

4

Why can’t you just disable the depth test when you want to draw your top stuff?

5

hehe. thanks Deiussum!!