Render model in non perspective mode
5 replies to this topic
Crossbones+ - Reputation: 823
Posted 20 April 2006 - 05:28 AM
this might be simple but how do i setup a non perspective viewing where i can draw a 3d model but without the perspective like in blender where you choose Orthographic i tried to draw the x,y (z = depth) coordinates of my model in 2d view but didnt succeed is this the correct way or am i wrong? thanks
Crossbones+ - Reputation: 3971
Posted 20 April 2006 - 06:32 AM
Original post by Hunter_Ex
but is that enough
shall i use
glVertex2d to diaply my 3d model?
will lightning work?
Notice please that projection is a mapping from a 3 dimensional space to a 2 dimensional space (in the case of 3D gfx; mathematically it is a general mapping from a space to a space of less dimensions). So in both cases you use glVertex3/glNormal3 routines to supply the 3D geometric scene data to GL as usual. (glVertex2 routines are more common for UI elements and such, since it implies a depth of 0.)
Notice furthur that gluOrtho2D may be not exactly what you are looking for since it restricts the depth range in a fixed way. Stay with glOrtho in general.
[Edited by - haegarr on April 20, 2006 1:32:57 PM]