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Code Issues 121 Wiki Activity

moon phases, sun & moon billboards

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This commit is contained in:
tmj-fstate
2017-03-29 16:36:23 +02:00
parent 848db5878b
commit f2cd420bbb
6 changed files with 593 additions and 83 deletions
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156
renderer.cpp
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@@ -75,11 +75,6 @@ opengl_renderer::Init( GLFWwindow *Window ) {
glEnable( GL_COLOR_MATERIAL );
glColorMaterial( GL_FRONT, GL_AMBIENT_AND_DIFFUSE );
// ::glFogi( GL_FOG_COORD_SRC, GL_FOG_COORD );
// ::glFogi( GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH );
// ::glFogi( GL_FOG_MODE, GL_LINEAR );
// setup lighting
GLfloat ambient[] = { 0.0f, 0.0f, 0.0f, 1.0f };
::glLightModelfv( GL_LIGHT_MODEL_AMBIENT, ambient );
@@ -113,6 +108,8 @@ opengl_renderer::Init( GLFWwindow *Window ) {
// preload some common textures
WriteLog( "Loading common gfx data..." );
m_glaretextureid = GetTextureId( "fx\\lightglare", szTexturePath );
m_suntextureid = GetTextureId( "fx\\sun", szTexturePath );
m_moontextureid = GetTextureId( "fx\\moon", szTexturePath );
WriteLog( "...gfx data pre-loading done" );
return true;
@@ -132,32 +129,16 @@ opengl_renderer::Render() {
std::max( 1.0f, (float)Global::ScreenWidth ) / std::max( 1.0f, (float)Global::ScreenHeight ),
0.1f * Global::ZoomFactor,
m_drawrange * Global::fDistanceFactor );
/*
glm::mat4 projection = glm::perspective(
Global::FieldOfView / Global::ZoomFactor * 0.0174532925f,
std::max( 1.0f, (float)Global::ScreenWidth ) / std::max( 1.0f, (float)Global::ScreenHeight ),
0.1f * Global::ZoomFactor,
m_drawrange * Global::fDistanceFactor );
::glLoadMatrixf( &projection[0][0] );
*/
::glMatrixMode( GL_MODELVIEW ); // Select The Modelview Matrix
::glLoadIdentity();
if( World.InitPerformed() ) {
/*
glm::mat4 modelview( 1.0f );
World.Camera.SetMatrix( modelview );
::glLoadMatrixf( &modelview[ 0 ][ 0 ] );
m_camera.update_frustum( projection, modelview );
*/
World.Camera.SetMatrix();
m_camera.update_frustum();
if( !Global::bWireFrame ) {
// bez nieba w trybie rysowania linii
World.Environment.render();
}
Render( &World.Environment );
World.Ground.Render( World.Camera.Pos );
World.Render_Cab();
@@ -172,7 +153,131 @@ opengl_renderer::Render() {
return true; // for now always succeed
}
#ifndef EU07_USE_OLD_RENDERCODE
bool
opengl_renderer::Render( world_environment *Environment ) {
if( Global::bWireFrame ) {
// bez nieba w trybie rysowania linii
return false;
}
Bind( 0 );
::glDisable( GL_LIGHTING );
::glDisable( GL_DEPTH_TEST );
::glDepthMask( GL_FALSE );
::glPushMatrix();
::glTranslatef( Global::pCameraPosition.x, Global::pCameraPosition.y, Global::pCameraPosition.z );
// setup fog
if( Global::fFogEnd > 0 ) {
// fog setup
::glFogfv( GL_FOG_COLOR, Global::FogColor );
::glFogf( GL_FOG_DENSITY, 1.0f / Global::fFogEnd );
::glEnable( GL_FOG );
}
else { ::glDisable( GL_FOG ); }
Environment->m_skydome.Render();
Environment->m_stars.render();
float const duskfactor = 1.0f - clamp( std::abs( Environment->m_sun.getAngle() ), 0.0f, 12.0f ) / 12.0f;
float3 suncolor = interpolate(
float3( 255.0f / 255.0f, 242.0f / 255.0f, 231.0f / 255.0f ),
float3( 235.0f / 255.0f, 140.0f / 255.0f, 36.0f / 255.0f ),
duskfactor );
if( DebugModeFlag == true ) {
// mark sun position for easier debugging
Environment->m_sun.render();
Environment->m_moon.render();
}
// render actual sun and moon
::glPushAttrib( GL_ENABLE_BIT | GL_CURRENT_BIT | GL_COLOR_BUFFER_BIT );
::glDisable( GL_LIGHTING );
::glDisable( GL_ALPHA_TEST );
::glEnable( GL_BLEND );
::glBlendFunc( GL_SRC_ALPHA, GL_ONE );
auto const &modelview = OpenGLMatrices.data( GL_MODELVIEW );
// sun
{
Bind( m_suntextureid );
::glColor4f( suncolor.x, suncolor.y, suncolor.z, 1.0f );
auto const sunvector = Environment->m_sun.getDirection();
auto const sunposition = modelview * glm::vec4( sunvector.x, sunvector.y, sunvector.z, 1.0f );
::glPushMatrix();
::glLoadIdentity(); // macierz jedynkowa
::glTranslatef( sunposition.x, sunposition.y, sunposition.z ); // początek układu zostaje bez zmian
float const size = 0.045f;
::glBegin( GL_TRIANGLE_STRIP );
::glTexCoord2f( 1.0f, 1.0f ); ::glVertex3f( -size, size, 0.0f );
::glTexCoord2f( 1.0f, 0.0f ); ::glVertex3f( -size, -size, 0.0f );
::glTexCoord2f( 0.0f, 1.0f ); ::glVertex3f( size, size, 0.0f );
::glTexCoord2f( 0.0f, 0.0f ); ::glVertex3f( size, -size, 0.0f );
::glEnd();
::glPopMatrix();
}
// moon
{
Bind( m_moontextureid );
float3 mooncolor( 255.0f / 255.0f, 242.0f / 255.0f, 231.0f / 255.0f );
::glColor4f( mooncolor.x, mooncolor.y, mooncolor.z, 1.0f - Global::fLuminance * 0.5f );
auto const moonvector = Environment->m_moon.getDirection();
auto const moonposition = modelview * glm::vec4( moonvector.x, moonvector.y, moonvector.z, 1.0f );
::glPushMatrix();
::glLoadIdentity(); // macierz jedynkowa
::glTranslatef( moonposition.x, moonposition.y, moonposition.z );
float const size = 0.025f; // TODO: expose distance/scale factor from the moon object
// choose the moon appearance variant, based on current moon phase
// NOTE: implementation specific, 8 variants are laid out in 3x3 arrangement
// from new moon onwards, top left to right bottom (last spot is left for future use, if any)
auto const moonphase = Environment->m_moon.getPhase();
float moonu, moonv;
if( moonphase < 1.84566f ) { moonv = 1.0f - 0.0f; moonu = 0.0f; }
else if( moonphase < 5.53699f ) { moonv = 1.0f - 0.0f; moonu = 0.333f; }
else if( moonphase < 9.22831f ) { moonv = 1.0f - 0.0f; moonu = 0.667f; }
else if( moonphase < 12.91963f ) { moonv = 1.0f - 0.333f; moonu = 0.0f; }
else if( moonphase < 16.61096f ) { moonv = 1.0f - 0.333f; moonu = 0.333f; }
else if( moonphase < 20.30228f ) { moonv = 1.0f - 0.333f; moonu = 0.667f; }
else if( moonphase < 23.99361f ) { moonv = 1.0f - 0.667f; moonu = 0.0f; }
else if( moonphase < 27.68493f ) { moonv = 1.0f - 0.667f; moonu = 0.333f; }
else { moonv = 1.0f - 0.0f; moonu = 0.0f; }
::glBegin( GL_TRIANGLE_STRIP );
::glTexCoord2f( moonu, moonv ); ::glVertex3f( -size, size, 0.0f );
::glTexCoord2f( moonu, moonv - 0.333f ); ::glVertex3f( -size, -size, 0.0f );
::glTexCoord2f( moonu + 0.333f, moonv ); ::glVertex3f( size, size, 0.0f );
::glTexCoord2f( moonu + 0.333f, moonv - 0.333f ); ::glVertex3f( size, -size, 0.0f );
::glEnd();
::glPopMatrix();
}
::glPopAttrib();
// clouds
Environment->m_clouds.Render(
interpolate( Environment->m_skydome.GetAverageColor(), suncolor, duskfactor * 0.25f )
* ( 1.0f - Global::Overcast * 0.5f ) // overcast darkens the clouds
* 2.5f ); // arbitrary adjustment factor
Global::DayLight.apply_angle();
Global::DayLight.apply_intensity();
::glPopMatrix();
::glDepthMask( GL_TRUE );
::glEnable( GL_DEPTH_TEST );
::glEnable( GL_LIGHTING );
return true;
}
bool
opengl_renderer::Render( TGround *Ground ) {
@@ -745,7 +850,6 @@ opengl_renderer::Render_Alpha( TSubModel *Submodel ) {
if( Submodel->iAlpha & Submodel->iFlags & 0x2F000000 )
Render_Alpha( Submodel->Next );
};
#endif
void
opengl_renderer::Update ( double const Deltatime ) {