How to draw a mouse cursor in OpenGL!?
Author
I'm sorry for the noobish question, but I'm a noob lol
So down to business, I have a app that load a terrain in ortho view (isometric), and I want to make a mouse cursor.... I searched nehe's and found a tutorial but for some reason it didn't worked, and I needed a better explanation on how to achieve this.
Ty!
Use your windowing system api (or SDL) to get the mouse coordinates.
use that as the top left corner of a quad with a pointer texture on it.
update the position every frame (or every time you do your logic update)
use that as the top left corner of a quad with a pointer texture on it.
update the position every frame (or every time you do your logic update)
Author
I think i expressed myself bad... sorry.
What I don't know is how to draw a textured quad in my screen independently of my actual camera. I dont know how to DRAW the mouse cursor in a 2d manner while keeping my ortho view the same.
About getting mouse coords, it's okay ;)
What I don't know is how to draw a textured quad in my screen independently of my actual camera. I dont know how to DRAW the mouse cursor in a 2d manner while keeping my ortho view the same.
About getting mouse coords, it's okay ;)
Quote:Original post by LordAsmDon't keep it the same. Before you render your cursor (and other 2d stuff such as a HUD) switch to an orthographic projection with the same dimensions as the screen. Then you can just render in screen coordinates.
What I don't know is how to draw a textured quad in my screen independently of my actual camera. I dont know how to DRAW the mouse cursor in a 2d manner while keeping my ortho view the same.
EDIT: If you need more info, look here.
sorry if i didnt understood you correctly...
glPushMatrux();//Do Mouse moving here, also orth.glPopMatrix();glPushMatrux();//Do The Terrain moving hereglPopMatrix();This topic is closed to new replies.
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