thanx in advance for the help
SiN
flipping the y axis around?
Author
hi,
i''d like to kno how i could flip the y-axis around in perspective view. so, i''d like going upwards to decrease the y-value, while going downwards to increase the y-value.
and i''d rather not have a quick work-around like just make all the y values in glVertex3f() negative, because i like my code REAAL clean
thanx in advance for the help
SiN
thanx in advance for the help
SiN
i think somehwere u have code that looks something like this
glcamera(cam.x,cam.y,cam.z,cat.x,cat.y,cat.z, 0,1,0);
make it like this
glcamera(cam.x,cam.y,cam.z,cat.x,cat.y,cat.z, 0,-1,0);
edit : actualy, whats wrong with tossin a negative in front of every y coord, i think rotating the camera may reverse some other things too.
[edited by - honayboyz on August 15, 2003 1:33:11 AM]
glcamera(cam.x,cam.y,cam.z,cat.x,cat.y,cat.z, 0,1,0);
make it like this
glcamera(cam.x,cam.y,cam.z,cat.x,cat.y,cat.z, 0,-1,0);
edit : actualy, whats wrong with tossin a negative in front of every y coord, i think rotating the camera may reverse some other things too.
[edited by - honayboyz on August 15, 2003 1:33:11 AM]
Author
thanx, but i dont use glCamera (i have a feeling u mean gluLookAt) ... i just use glTransform and glRotate , and render everything relative to the cameras position
any other sugestions? thanx
SiN
any other sugestions? thanx
SiN
Would a
work? I''m sure I have seen this used when using a stencil buffer to do reflections. The idea being that an axis is inverted and the model/object can be drawn again, but will appear flipped?
glScalef(0.0, -1.0, 0.0); work? I''m sure I have seen this used when using a stencil buffer to do reflections. The idea being that an axis is inverted and the model/object can be drawn again, but will appear flipped?
That would be
glScalef(1.0f, -1.0f, 1.0f);
Remember that rotations will go the other way around as well!
Sander Maréchal
[Lone Wolves Game Development][RoboBlast][Articles][GD Emporium][Webdesign][E-mail]
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glScalef(1.0f, -1.0f, 1.0f);
Remember that rotations will go the other way around as well!
Sander Maréchal
[Lone Wolves Game Development][RoboBlast][Articles][GD Emporium][Webdesign][E-mail]
GSACP: GameDev Society Against Crap Posting
To join: Put these lines in your signature and don''t post crap!
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