/** The rendering routine, a.k.a., glutDisplayFunc() */
void eqHello::Channel::frameDraw( const eq::uint128_t& spin )
{
// setup OpenGL State
eq::Channel::frameDraw( spin );
const float lightPos[] = { 0.0f, 0.0f, 1.0f, 0.0f };
glLightfv( GL_LIGHT0, GL_POSITION, lightPos );
const float lightAmbient[] = { 0.2f, 0.2f, 0.2f, 1.0f };
glLightfv( GL_LIGHT0, GL_AMBIENT, lightAmbient );
// rotate scene around the origin
glRotatef( static_cast< float >( spin.low( )) * 0.1f, 1.0f, 0.5f, 0.25f );
// render six axis-aligned colored quads around the origin
for( int i = 0; i < 6; i++ )
{
glColor3f( (i&1) ? 0.5f:1.0f, (i&2) ? 1.0f:0.5f, (i&4) ? 1.0f:0.5f );
glNormal3f( 0.0f, 0.0f, 1.0f );
glBegin( GL_TRIANGLE_STRIP );
glVertex3f( .7f, .7f, -1.0f );
glVertex3f( -.7f, .7f, -1.0f );
glVertex3f( .7f, -.7f, -1.0f );
glVertex3f( -.7f, -.7f, -1.0f );
glEnd();
if( i < 3 )
glRotatef( 90.0f, 0.0f, 1.0f, 0.0f );
else if( i == 3 )
glRotatef( 90.0f, 1.0f, 0.0f, 0.0f );
else
glRotatef( 180.0f, 1.0f, 0.0f, 0.0f );
}
}
void Channel::_draw( const eq::uint128_t& spin )
{
glPushAttrib( GL_ALL_ATTRIB_BITS );
eq::Channel::frameDraw( spin );
glClear( GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT );
glEnable( GL_DEPTH_TEST );
#if 0
setNearFar( 0.5f, 5.0f );
const GLfloat lightPosition[] = {5.0f, 0.0f, 5.0f, 0.0f};
const GLfloat lightDiffuse[] = {0.8f, 0.8f, 0.8f, 1.0f};
const GLfloat materialDiffuse[] = {0.8f, 0.8f, 0.8f, 1.0f};
glLightfv( GL_LIGHT0, GL_POSITION, lightPosition );
glLightfv( GL_LIGHT0, GL_DIFFUSE, lightDiffuse );
glMaterialfv( GL_FRONT, GL_DIFFUSE, materialDiffuse );
eq::Matrix4f rotation;
eq::Vector3f translation;
translation = eq::Vector3f::ZERO;
translation.z = -2.f;
rotation = eq::Matrix4f::IDENTITY;
rotation.rotate_x( static_cast<float>( -M_PI_2 ));
rotation.rotate_y( static_cast<float>( -M_PI_2 ));
glTranslatef( translation.x, translation.y, translation.z );
glMultMatrixf( rotation.ml );
glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
glColor3f( 1.f, 1.f, 0.f );
glNormal3f( 1.f, -1.f, 0.f );
glBegin( GL_TRIANGLE_STRIP );
glVertex3f( 1.f, 10.f, 2.5f );
glVertex3f( -1.f, 10.f, 2.5f );
glVertex3f( 1.f,-10.f, -2.5f );
glVertex3f( -1.f,-10.f, -2.5f );
glEnd();
#else
const float lightPos[] = { 0.0f, 0.0f, 1.0f, 0.0f };
glLightfv( GL_LIGHT0, GL_POSITION, lightPos );
const float lightAmbient[] = { 0.2f, 0.2f, 0.2f, 1.0f };
glLightfv( GL_LIGHT0, GL_AMBIENT, lightAmbient );
// rotate scene around the origin
glRotatef( static_cast< float >( spin.low() + 3 ) * 10, 1.0f, 0.5f, 0.25f );
// render six axis-aligned colored quads around the origin
// front
glColor3f( 1.0f, 0.5f, 0.5f );
glNormal3f( 0.0f, 0.0f, 1.0f );
glBegin( GL_TRIANGLE_STRIP );
glVertex3f( .7f, .7f, -1.0f );
glVertex3f( -.7f, .7f, -1.0f );
glVertex3f( .7f, -.7f, -1.0f );
glVertex3f( -.7f, -.7f, -1.0f );
glEnd();
// bottom
glColor3f( 0.5f, 1.0f, 0.5f );
glNormal3f( 0.0f, 1.0f, 0.0f );
glBegin( GL_TRIANGLE_STRIP );
glVertex3f( .7f, -1.0f, .7f );
glVertex3f( -.7f, -1.0f, .7f );
glVertex3f( .7f, -1.0f, -.7f );
glVertex3f( -.7f, -1.0f, -.7f );
glEnd();
// back
glColor3f( 0.5f, 0.5f, 1.0f );
glNormal3f( 0.0f, 0.0f, -1.0f );
glBegin( GL_TRIANGLE_STRIP );
glVertex3f( .7f, .7f, 1.0f );
glVertex3f( -.7f, .7f, 1.0f );
glVertex3f( .7f, -.7f, 1.0f );
glVertex3f( -.7f, -.7f, 1.0f );
glEnd();
// top
glColor3f( 1.0f, 1.0f, 0.5f );
glNormal3f( 0.f, -1.f, 0.f );
glBegin( GL_TRIANGLE_STRIP );
glVertex3f( .7f, 1.0f, .7f );
glVertex3f( -.7f, 1.0f, .7f );
glVertex3f( .7f, 1.0f, -.7f );
glVertex3f( -.7f, 1.0f, -.7f );
glEnd();
// right
glColor3f( 1.0f, 0.5f, 1.0f );
glNormal3f( -1.f, 0.f, 0.f );
glBegin( GL_TRIANGLE_STRIP );
glVertex3f( 1.0f, .7f, .7f );
glVertex3f( 1.0f, -.7f, .7f );
glVertex3f( 1.0f, .7f, -.7f );
glVertex3f( 1.0f, -.7f, -.7f );
glEnd();
// left
glColor3f( 0.5f, 1.0f, 1.0f );
glNormal3f( 1.f, 0.f, 0.f );
glBegin( GL_TRIANGLE_STRIP );
glVertex3f( -1.0f, .7f, .7f );
glVertex3f( -1.0f, -.7f, .7f );
glVertex3f( -1.0f, .7f, -.7f );
glVertex3f( -1.0f, -.7f, -.7f );
glEnd();
#endif
glPopAttrib( );
}
void Channel::_draw( const eq::uint128_t& spin )
{
bindFrameBuffer();
EQ_GL_CALL( glPushAttrib( GL_ALL_ATTRIB_BITS ));
eq::Channel::frameDraw( spin );
EQ_GL_CALL( glClear( GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT ));
EQ_GL_CALL( glEnable( GL_DEPTH_TEST ));
const float lightPos[] = { 0.0f, 0.0f, 1.0f, 0.0f };
glLightfv( GL_LIGHT0, GL_POSITION, lightPos );
const float lightAmbient[] = { 0.2f, 0.2f, 0.2f, 1.0f };
glLightfv( GL_LIGHT0, GL_AMBIENT, lightAmbient );
// rotate scene around the origin
glRotatef( static_cast< float >( spin.low() + 3 ) * 10, 1.0f, 0.5f, 0.25f );
// render six axis-aligned colored quads around the origin
// front
glColor3f( 1.0f, 0.5f, 0.5f );
glNormal3f( 0.0f, 0.0f, 1.0f );
glBegin( GL_TRIANGLE_STRIP );
glVertex3f( .7f, .7f, -1.0f );
glVertex3f( -.7f, .7f, -1.0f );
glVertex3f( .7f, -.7f, -1.0f );
glVertex3f( -.7f, -.7f, -1.0f );
glEnd();
// bottom
glColor3f( 0.5f, 1.0f, 0.5f );
glNormal3f( 0.0f, 1.0f, 0.0f );
glBegin( GL_TRIANGLE_STRIP );
glVertex3f( .7f, -1.0f, .7f );
glVertex3f( -.7f, -1.0f, .7f );
glVertex3f( .7f, -1.0f, -.7f );
glVertex3f( -.7f, -1.0f, -.7f );
glEnd();
// back
glColor3f( 0.5f, 0.5f, 1.0f );
glNormal3f( 0.0f, 0.0f, -1.0f );
glBegin( GL_TRIANGLE_STRIP );
glVertex3f( .7f, .7f, 1.0f );
glVertex3f( -.7f, .7f, 1.0f );
glVertex3f( .7f, -.7f, 1.0f );
glVertex3f( -.7f, -.7f, 1.0f );
glEnd();
// top
glColor3f( 1.0f, 1.0f, 0.5f );
glNormal3f( 0.f, -1.f, 0.f );
glBegin( GL_TRIANGLE_STRIP );
glVertex3f( .7f, 1.0f, .7f );
glVertex3f( -.7f, 1.0f, .7f );
glVertex3f( .7f, 1.0f, -.7f );
glVertex3f( -.7f, 1.0f, -.7f );
glEnd();
// right
glColor3f( 1.0f, 0.5f, 1.0f );
glNormal3f( -1.f, 0.f, 0.f );
glBegin( GL_TRIANGLE_STRIP );
glVertex3f( 1.0f, .7f, .7f );
glVertex3f( 1.0f, -.7f, .7f );
glVertex3f( 1.0f, .7f, -.7f );
glVertex3f( 1.0f, -.7f, -.7f );
glEnd();
// left
glColor3f( 0.5f, 1.0f, 1.0f );
glNormal3f( 1.f, 0.f, 0.f );
glBegin( GL_TRIANGLE_STRIP );
glVertex3f( -1.0f, .7f, .7f );
glVertex3f( -1.0f, -.7f, .7f );
glVertex3f( -1.0f, .7f, -.7f );
glVertex3f( -1.0f, -.7f, -.7f );
glEnd();
EQ_GL_CALL( glPopAttrib( ));
}