Rev | Line | |
---|
[1097] | 1 | /************************************************************************
|
---|
| 2 |
|
---|
| 3 | MxCamera
|
---|
| 4 |
|
---|
| 5 | Copyright (C) 1998 Michael Garland. See "COPYING.txt" for details.
|
---|
| 6 |
|
---|
| 7 | $Id: MxCamera.cxx,v 1.1 2002/09/24 16:53:54 wimmer Exp $
|
---|
| 8 |
|
---|
| 9 | ************************************************************************/
|
---|
| 10 |
|
---|
| 11 | #include "stdmix.h"
|
---|
| 12 | #include "MxCamera.h"
|
---|
| 13 |
|
---|
| 14 |
|
---|
| 15 |
|
---|
| 16 | void MxCamera::look_at(const MxBounds& bounds, double ratio)
|
---|
| 17 | {
|
---|
| 18 | double d = 3*bounds.radius / tan(60*M_PI/180.0);
|
---|
| 19 |
|
---|
| 20 | at = bounds.center;
|
---|
| 21 | from = at;
|
---|
| 22 |
|
---|
| 23 | from[Z] += d;
|
---|
| 24 |
|
---|
| 25 | up[X] = 0; up[Y] = 1; up[Z] = 0;
|
---|
| 26 |
|
---|
| 27 | fovy = 60.0;
|
---|
| 28 | aspect = ratio;
|
---|
| 29 |
|
---|
| 30 | znear = d/20;
|
---|
| 31 | zfar = 10*d;
|
---|
| 32 | }
|
---|
| 33 |
|
---|
| 34 | void MxCamera::apply()
|
---|
| 35 | {
|
---|
| 36 | gluPerspective(fovy, aspect, znear, zfar);
|
---|
| 37 | gluLookAt(from[X], from[Y], from[Z],
|
---|
| 38 | at[X], at[Y], at[Z],
|
---|
| 39 | up[X], up[Y], up[Z]);
|
---|
| 40 | }
|
---|
| 41 |
|
---|
| 42 | void MxCamera::apply(GLenum mode)
|
---|
| 43 | {
|
---|
| 44 | GLint last_mode; glGetIntegerv(GL_MATRIX_MODE, &last_mode);
|
---|
| 45 | glMatrixMode(mode);
|
---|
| 46 | apply();
|
---|
| 47 | glMatrixMode((GLenum)last_mode);
|
---|
| 48 | }
|
---|
Note: See
TracBrowser
for help on using the repository browser.