Point3Df Scene :: GetCameraPosition() const
{
float cos_teta = cos( mCameraPosition.mTeta );
return Point3Df( cos_teta * sin( mCameraPosition.mAlpha ) * CAMERA_RADIUS,
sin( mCameraPosition.mTeta ) * CAMERA_RADIUS,
cos_teta * cos( mCameraPosition.mAlpha ) * CAMERA_RADIUS );
}
TriangView::TriangView(QWidget *parent):
QGLWidget(parent),
xRot(0), yRot(0), zRot(0), scale(.8)
{
#ifdef DRAW_CUBE
/* Drawing a cube:
*
* 6-------7 diagonals:
* /| /|
* 4-------5 | z y 0-3 0-5 0-6 3-5 3-6 5-6
* | | | | | /
* | 2-----|-3 | /
* |/ |/ | /
* 0-------1 |/______ x
*
*/
for (unsigned i = 0; i < 8; ++i) {
points.push_back(Point3Df(
(i & 1) ? .5f : -.5f,
(i & 2) ? .5f : -.5f,
(i & 4) ? .5f : -.5f
));
}
triangles.push_back(Triangle3Df(0, 1, 3, 0.f, 0.f, -1.f));
triangles.push_back(Triangle3Df(0, 2, 3, 0.f, 0.f, -1.f));
triangles.push_back(Triangle3Df(0, 1, 5, 0.f, -1.f, 0.f));
triangles.push_back(Triangle3Df(0, 4, 5, 0.f, -1.f, 0.f));
triangles.push_back(Triangle3Df(0, 2, 6, -1.f, 0.f, 0.f));
triangles.push_back(Triangle3Df(0, 4, 6, -1.f, 0.f, 0.f));
triangles.push_back(Triangle3Df(3, 1, 5, 1.f, 0.f, 0.f));
triangles.push_back(Triangle3Df(3, 7, 5, 1.f, 0.f, 0.f));
triangles.push_back(Triangle3Df(3, 2, 6, 0.f, 1.f, 0.f));
triangles.push_back(Triangle3Df(3, 7, 6, 0.f, 1.f, 0.f));
triangles.push_back(Triangle3Df(5, 4, 6, 0.f, 0.f, 1.f));
triangles.push_back(Triangle3Df(5, 7, 6, 0.f, 0.f, 1.f));
#else
fillVectors(points, triangles);
#endif
}
void Scene :: paintGL()
{
Point3Df camera_positon;
Point3Df camera_directon;
Point3Df right_vec_to_dir;
camera_positon = GetCameraPosition();
camera_directon = Geometry :: Normalize( -1.0f * camera_positon );
camera_positon = camera_positon + mCameraShift;
right_vec_to_dir = Geometry :: VectorMul( camera_directon, Point3Df( 0.0f, 1.0f, 0.0f ) );
glViewport( 0, 0, mWidth, mHeight );
if ( mIsStereo )
{
right_vec_to_dir = ( mFrustumEyeSep / 2.0f ) * right_vec_to_dir;
glMatrixMode( GL_PROJECTION );
glLoadIdentity();
mFrustumLeft = -mRatio * mFrustumHalfWidth - 0.5 * mFrustumEyeSep * mFrustumNearPlane / mFrustumFocalLength;
mFrustumRight = mRatio * mFrustumHalfWidth - 0.5 * mFrustumEyeSep * mFrustumNearPlane / mFrustumFocalLength;
glFrustum( mFrustumLeft, mFrustumRight,
-mFrustumHalfWidth * mRatio, mFrustumHalfWidth * mRatio,
mFrustumNearPlane, mFrustumFarPlane );
glMatrixMode( GL_MODELVIEW );
glDrawBuffer( GL_BACK_RIGHT );
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
glLoadIdentity();
gluLookAt( camera_positon.mX + right_vec_to_dir.mX,
camera_positon.mY + right_vec_to_dir.mY,
camera_positon.mZ + right_vec_to_dir.mZ,
camera_positon.mX + right_vec_to_dir.mX + camera_directon.mX,
camera_positon.mY + right_vec_to_dir.mY + camera_directon.mY,
camera_positon.mZ + right_vec_to_dir.mZ + camera_directon.mZ,
0, 1, 0 );
mpGame -> DrawWorld();
glLightfv( GL_LIGHT0, GL_POSITION, mpGame -> GetLightPosition() );
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
mFrustumLeft = -mRatio * mFrustumHalfWidth + 0.5 * mFrustumEyeSep * mFrustumNearPlane / mFrustumFocalLength;
mFrustumRight = mRatio * mFrustumHalfWidth + 0.5 * mFrustumEyeSep * mFrustumNearPlane / mFrustumFocalLength;
glFrustum( mFrustumLeft, mFrustumRight,
-mFrustumHalfWidth * mRatio, mFrustumHalfWidth * mRatio,
mFrustumNearPlane, mFrustumFarPlane );
glMatrixMode( GL_MODELVIEW );
glDrawBuffer( GL_BACK_LEFT );
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
glLoadIdentity();
gluLookAt( camera_positon.mX - right_vec_to_dir.mX,
camera_positon.mY - right_vec_to_dir.mY,
camera_positon.mZ - right_vec_to_dir.mZ,
camera_positon.mX - right_vec_to_dir.mX + camera_directon.mX,
camera_positon.mY - right_vec_to_dir.mY + camera_directon.mY,
camera_positon.mZ - right_vec_to_dir.mZ + camera_directon.mZ,
0, 1, 0 );
mpGame -> DrawWorld();
glLightfv( GL_LIGHT0, GL_POSITION, mpGame -> GetLightPosition() );
}
else
{
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho( -mWidth / 2, mWidth / 2, -mHeight / 2, mHeight / 2, 0, 1000 );
glMatrixMode( GL_MODELVIEW );
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
glLoadIdentity();
gluLookAt( camera_positon.mX, camera_positon.mY, camera_positon.mZ,
mCameraShift.mX, mCameraShift.mY, mCameraShift.mZ,
0, 1, 0 );
mpGame -> DrawWorld();
glLightfv( GL_LIGHT0, GL_POSITION, mpGame -> GetLightPosition() );
}
DrawTextInformation();
swapBuffers();
}
bool Block :: PointIn( Point3Di aPoint )
{
return PointIn( Point3Df( aPoint ) );
}
void Block :: Draw( Point3Df aFigPos )
{
/*
Вершины куба занумерованы в след. порядке( делим куб на 4 части ):
1)-,+,- 2)-,+,+ 3)+,+,+ 4)+,+,-
5)+,-,- 6)+,-,+ 7)-,-,+ 8)-,-,-
*/
glMaterialfv( GL_FRONT, GL_AMBIENT, mMaterial.GetMaterialForAmbient() );
glMaterialfv( GL_FRONT, GL_DIFFUSE, mMaterial.GetMaterialForDiffuse() );
glMaterialfv( GL_FRONT, GL_SPECULAR, mMaterial.GetMaterialForSpecular() );
//Firts side
DrawSide( Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 0 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 0 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 0 ].mZ ),
Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 1 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 1 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 1 ].mZ ),
Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 2 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 2 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 2 ].mZ ),
Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 3 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 3 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 3 ].mZ )
);
//Second side
DrawSide( Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 1 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 1 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 1 ].mZ ),
Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 6 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 6 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 6 ].mZ ),
Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 5 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 5 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 5 ].mZ ),
Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 2 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 2 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 2 ].mZ )
);
//Third side
DrawSide( Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 2 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 2 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 2 ].mZ ),
Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 5 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 5 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 5 ].mZ ),
Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 4 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 4 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 4 ].mZ ),
Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 3 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 3 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 3 ].mZ )
);
//Fourth side
DrawSide( Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 6 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 6 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 6 ].mZ ),
Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 7 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 7 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 7 ].mZ ),
Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 4 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 4 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 4 ].mZ ),
Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 5 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 5 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 5 ].mZ )
);
//Fifth side
DrawSide( Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 0 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 0 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 0 ].mZ ),
Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 7 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 7 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 7 ].mZ ),
Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 6 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 6 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 6 ].mZ ),
Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 1 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 1 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 1 ].mZ )
);
//Sixth side
DrawSide( Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 3 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 3 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 3 ].mZ ),
Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 4 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 4 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 4 ].mZ ),
Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 7 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 7 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 7 ].mZ ),
Point3Df( aFigPos.mX + mPosF.mX + mVerticesF[ 0 ].mX,
aFigPos.mY + mPosF.mY + mVerticesF[ 0 ].mY,
aFigPos.mZ + mPosF.mZ + mVerticesF[ 0 ].mZ )
);
}
void Block :: Draw()
{
Draw( Point3Df( 0.0f, 0.0f, 0.0f ) );
}
