1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
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2 | /* |
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3 | * ---------------------------------------------------------------------- |
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4 | * NvCamera.cpp : NvCamera class |
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5 | * |
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6 | * ====================================================================== |
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7 | * AUTHOR: Wei Qiao <qiaow@purdue.edu> |
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8 | * Purdue Rendering and Perceptualization Lab (PURPL) |
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9 | * |
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10 | * Copyright (c) 2004-2006 Purdue Research Foundation |
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11 | * |
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12 | * See the file "license.terms" for information on usage and |
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13 | * redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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14 | * ====================================================================== |
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15 | */ |
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16 | #include <stdio.h> |
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17 | |
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18 | #include <GL/glew.h> |
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19 | #include <GL/glu.h> |
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20 | |
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21 | #include "NvCamera.h" |
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22 | #include "Trace.h" |
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23 | |
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24 | NvCamera::NvCamera(int startx, int starty, int w, int h, |
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25 | float loc_x, float loc_y, float loc_z, |
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26 | float target_x, float target_y, float target_z, |
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27 | float angle_x, float angle_y, float angle_z) : |
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28 | _location(loc_x, loc_y, loc_z), |
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29 | _target(target_x, target_y, target_z), |
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30 | _angle(angle_x, angle_y, angle_z), |
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31 | _width(w), |
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32 | _height(h), |
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33 | _startX(startx), |
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34 | _startY(starty) |
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35 | { |
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36 | } |
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37 | |
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38 | void |
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39 | NvCamera::initialize() |
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40 | { |
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41 | TRACE("camera: %d, %d\n", _width, _height); |
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42 | glViewport(_startX, _startY, _width, _height); |
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43 | glMatrixMode(GL_PROJECTION); |
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44 | glLoadIdentity(); |
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45 | gluPerspective(30, |
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46 | (GLdouble)(_width - _startX)/(GLdouble)(_height - _startY), |
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47 | 0.1, 50.0); |
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48 | |
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49 | glMatrixMode(GL_MODELVIEW); |
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50 | glLoadIdentity(); |
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51 | |
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52 | gluLookAt(_location.x, _location.y, _location.z, |
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53 | _target.x, _target.y, _target.z, |
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54 | 0., 1., 0.); |
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55 | |
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56 | glRotated(_angle.x, 1., 0., 0.); |
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57 | glRotated(_angle.y, 0., 1., 0.); |
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58 | glRotated(_angle.z, 0., 0., 1.); |
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59 | } |
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60 | |
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