Camera rotate
gluLookAt() is used when you want to "look" at a certain point. You can do what you ask by rotating that point around the viewpos, but I don't see the point in using gluLookAt() in that situation. Consider using glTranslatef() and glRotatef() to setup your camera.
Author
oki but how? i have translatef and rotatef object and now i must add next translatef and rotatef to camera?
Just substitute your gluLookAt() call with:
That's what I use in my first person shooter.
Hope that helps.
-EDIT: Fixed stupid mistake in code.
[Edited by - mikeman on November 11, 2004 2:06:24 PM]
glRotatef(RotX,1,0,0);//Look left/rightglRotatef(RotY,0,1,0);//Look up/downglRotatef(RotZ,0,0,1);//Don't really know the word (roll?)glTranslatef(-campos.x,-campos.y,-campos.z);//Camera positionThat's what I use in my first person shooter.
Hope that helps.
-EDIT: Fixed stupid mistake in code.
[Edited by - mikeman on November 11, 2004 2:06:24 PM]
Author
glTranslatef(-camera.x, -camera.y, -camera.z);
glRotatef(camera.rot.x,1,0,0);
glRotatef(camera.rot.y,0,1,0);
glRotatef(camera.rot.z,0,0,1);
glModelMatrix(GL_MODELVIEW);
glPopMatrix();
glTranslatef(object.x, object.y, object.z);
glRotatef(object.rot.x,1,0,0);
glRotatef(object.rot.y,0,1,0);
glRotatef(object.rot.z,0,0,1);
render_objekt()
glPushMatrix();;
this is correct?
glRotatef(camera.rot.x,1,0,0);
glRotatef(camera.rot.y,0,1,0);
glRotatef(camera.rot.z,0,0,1);
glModelMatrix(GL_MODELVIEW);
glPopMatrix();
glTranslatef(object.x, object.y, object.z);
glRotatef(object.rot.x,1,0,0);
glRotatef(object.rot.y,0,1,0);
glRotatef(object.rot.z,0,0,1);
render_objekt()
glPushMatrix();;
this is correct?
First of all, I made a HUGE mistake in my second post, I'm sorry: you put the rotate calls BEFORE the translate.
Besides that, _DarkWIng_ is right and also, your camera applies to the modelview matrix as well, so why you put glMatrixMode() after camera setup? Put it before,of course followed by glLoadIdentity() and then the rest. So it's:
Besides that, _DarkWIng_ is right and also, your camera applies to the modelview matrix as well, so why you put glMatrixMode() after camera setup? Put it before,of course followed by glLoadIdentity() and then the rest. So it's:
glModelMatrix(GL_MODELVIEW);glLoadIdentity();glRotatef(camera.rot.x,1,0,0);glRotatef(camera.rot.y,0,1,0);glRotatef(camera.rot.z,0,0,1);glTranslatef(-camera.x, -camera.y, -camera.z);glPushMatrix();glTranslatef(object.x, object.y, object.z);glRotatef(object.rot.x,1,0,0);glRotatef(object.rot.y,0,1,0);glRotatef(object.rot.z,0,0,1);render_objekt()glPopMatrix();This topic is closed to new replies.
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