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Improved 3D cloud support

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This commit is contained in:
Stuart Buchanan 2011-04-21 20:43:05 +01:00
parent 23971c17aa
commit 38af5a2a07
3 changed files with 115 additions and 55 deletions
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31
src/Environment/environment_mgr.cxx
View file

@ -97,6 +97,7 @@ FGEnvironmentMgr::init ()
{
SG_LOG( SG_GENERAL, SG_INFO, "Initializing environment subsystem");
SGSubsystemGroup::init();
fgClouds->Init();
}
void
@ -111,7 +112,7 @@ FGEnvironmentMgr::bind ()
{
SGSubsystemGroup::bind();
_environment->Tie( fgGetNode("/environment", true ) );
_tiedProperties.setRoot( fgGetNode( "/environment", true ) );
_tiedProperties.Tie( "effective-visibility-m", thesky,
@ -128,27 +129,27 @@ FGEnvironmentMgr::bind ()
for (int i = 0; i < MAX_CLOUD_LAYERS; i++) {
SGPropertyNode_ptr layerNode = fgGetNode("/environment/clouds",true)->getChild("layer", i, true );
_tiedProperties.Tie( layerNode->getNode("span-m",true), this, i,
_tiedProperties.Tie( layerNode->getNode("span-m",true), this, i,
&FGEnvironmentMgr::get_cloud_layer_span_m,
&FGEnvironmentMgr::set_cloud_layer_span_m);
_tiedProperties.Tie( layerNode->getNode("elevation-ft",true), this, i,
_tiedProperties.Tie( layerNode->getNode("elevation-ft",true), this, i,
&FGEnvironmentMgr::get_cloud_layer_elevation_ft,
&FGEnvironmentMgr::set_cloud_layer_elevation_ft);
_tiedProperties.Tie( layerNode->getNode("thickness-ft",true), this, i,
_tiedProperties.Tie( layerNode->getNode("thickness-ft",true), this, i,
&FGEnvironmentMgr::get_cloud_layer_thickness_ft,
&FGEnvironmentMgr::set_cloud_layer_thickness_ft);
_tiedProperties.Tie( layerNode->getNode("transition-ft",true), this, i,
_tiedProperties.Tie( layerNode->getNode("transition-ft",true), this, i,
&FGEnvironmentMgr::get_cloud_layer_transition_ft,
&FGEnvironmentMgr::set_cloud_layer_transition_ft);
_tiedProperties.Tie( layerNode->getNode("coverage",true), this, i,
_tiedProperties.Tie( layerNode->getNode("coverage",true), this, i,
&FGEnvironmentMgr::get_cloud_layer_coverage,
&FGEnvironmentMgr::set_cloud_layer_coverage);
_tiedProperties.Tie( layerNode->getNode("coverage-type",true), this, i,
_tiedProperties.Tie( layerNode->getNode("coverage-type",true), this, i,
&FGEnvironmentMgr::get_cloud_layer_coverage_type,
&FGEnvironmentMgr::set_cloud_layer_coverage_type);
@ -174,9 +175,9 @@ FGEnvironmentMgr::bind ()
_tiedProperties.Tie("clouds3d-vis-range", thesky,
&SGSky::get_3dCloudVisRange,
&SGSky::set_3dCloudVisRange);
_tiedProperties.Tie("precipitation-enable", &sgEnviro,
&SGEnviro::get_precipitation_enable_state,
&SGEnviro::get_precipitation_enable_state,
&SGEnviro::set_precipitation_enable_state);
_tiedProperties.Tie("lightning-enable", &sgEnviro,
@ -198,7 +199,7 @@ void
FGEnvironmentMgr::update (double dt)
{
SGSubsystemGroup::update(dt);
_environment->set_elevation_ft( _altitudeNode->getDoubleValue() );
simgear::Particles::setWindFrom( _environment->get_wind_from_heading_deg(),
@ -322,25 +323,25 @@ FGEnvironmentMgr::get_cloud_layer_coverage_type (int index) const
return thesky->get_cloud_layer(index)->getCoverage();
}
double
double
FGEnvironmentMgr::get_cloud_layer_visibility_m (int index) const
{
return thesky->get_cloud_layer(index)->getVisibility_m();
}
void
void
FGEnvironmentMgr::set_cloud_layer_visibility_m (int index, double visibility_m)
{
thesky->get_cloud_layer(index)->setVisibility_m(visibility_m);
}
double
double
FGEnvironmentMgr::get_cloud_layer_maxalpha (int index ) const
{
return thesky->get_cloud_layer(index)->getMaxAlpha();
}
void
void
FGEnvironmentMgr::set_cloud_layer_maxalpha (int index, double maxalpha)
{
thesky->get_cloud_layer(index)->setMaxAlpha(maxalpha);
@ -349,7 +350,7 @@ FGEnvironmentMgr::set_cloud_layer_maxalpha (int index, double maxalpha)
void
void
FGEnvironmentMgr::set_cloud_layer_coverage_type (int index, int type )
{
if( type < 0 || type >= SGCloudLayer::SG_MAX_CLOUD_COVERAGES ) {

130
src/Environment/fgclouds.cxx
View file

@ -33,6 +33,7 @@
#include <simgear/environment/visual_enviro.hxx>
#include <simgear/scene/sky/cloudfield.hxx>
#include <simgear/scene/sky/newcloud.hxx>
#include <simgear/structure/commands.hxx>
#include <simgear/math/sg_random.h>
#include <simgear/props/props_io.hxx>
@ -47,12 +48,13 @@ extern SGSky *thesky;
FGClouds::FGClouds() :
snd_lightning(0),
clouds_3d_enabled(false)
clouds_3d_enabled(false),
index(0)
{
update_event = 0;
}
FGClouds::~FGClouds()
FGClouds::~FGClouds()
{
}
@ -65,7 +67,7 @@ void FGClouds::set_update_event(int count) {
buildCloudLayers();
}
void FGClouds::init(void) {
void FGClouds::Init(void) {
if( snd_lightning == NULL ) {
snd_lightning = new SGSoundSample("Sounds/thunder.wav", SGPath());
snd_lightning->set_max_dist(7000.0f);
@ -75,6 +77,10 @@ void FGClouds::init(void) {
sgr->add( snd_lightning, "thunder" );
sgEnviro.set_sampleGroup( sgr );
}
globals->get_commands()->addCommand("add-cloud", do_add_3Dcloud);
globals->get_commands()->addCommand("del-cloud", do_delete_3Dcloud);
globals->get_commands()->addCommand("move-cloud", do_move_3Dcloud);
}
// Build an invidual cloud. Returns the extents of the cloud for coverage calculations
@ -101,7 +107,10 @@ double FGClouds::buildCloud(SGPropertyNode *cloud_def_root, SGPropertyNode *box_
double x = sg_random() * SGCloudField::fieldSize - (SGCloudField::fieldSize / 2.0);
double y = sg_random() * SGCloudField::fieldSize - (SGCloudField::fieldSize / 2.0);
double z = grid_z_rand * (sg_random() - 0.5);
float lon = fgGetNode("/position/longitude-deg", false)->getFloatValue();
float lat = fgGetNode("/position/latitude-deg", false)->getFloatValue();
SGVec3f pos(x,y,z);
for(int i = 0; i < box_def->nChildren() ; i++) {
@ -111,7 +120,7 @@ double FGClouds::buildCloud(SGPropertyNode *cloud_def_root, SGPropertyNode *box_
string type = abox->getStringValue("type", "cu-small");
cld_def = cloud_def_root->getChild(type.c_str());
if ( !cld_def ) return 0.0;
double w = abox->getDoubleValue("width", 1000.0);
double h = abox->getDoubleValue("height", 1000.0);
int hdist = abox->getIntValue("hdist", 1);
@ -147,38 +156,10 @@ double FGClouds::buildCloud(SGPropertyNode *cloud_def_root, SGPropertyNode *box_
z = h * z + pos[2]; // Up/Down. pos[2] is the cloudbase
SGVec3f newpos = SGVec3f(x, y, z);
SGNewCloud cld = SGNewCloud(texture_root, cld_def);
double min_width = cld_def->getDoubleValue("min-cloud-width-m", 500.0);
double max_width = cld_def->getDoubleValue("max-cloud-width-m", 1000.0);
double min_height = cld_def->getDoubleValue("min-cloud-height-m", min_width);
double max_height = cld_def->getDoubleValue("max-cloud-height-m", max_width);
double min_sprite_width = cld_def->getDoubleValue("min-sprite-width-m", 200.0);
double max_sprite_width = cld_def->getDoubleValue("max-sprite-width-m", min_sprite_width);
double min_sprite_height = cld_def->getDoubleValue("min-sprite-height-m", min_sprite_width);
double max_sprite_height = cld_def->getDoubleValue("max-sprite-height-m", max_sprite_width);
int num_sprites = cld_def->getIntValue("num-sprites", 20);
int num_textures_x = cld_def->getIntValue("num-textures-x", 1);
int num_textures_y = cld_def->getIntValue("num-textures-y", 1);
double bottom_shade = cld_def->getDoubleValue("bottom-shade", 1.0);
string texture = cld_def->getStringValue("texture", "cu.png");
SGNewCloud cld =
SGNewCloud(type,
texture_root,
texture,
min_width,
max_width,
min_height,
max_height,
min_sprite_width,
max_sprite_width,
min_sprite_height,
max_sprite_height,
bottom_shade,
num_sprites,
num_textures_x,
num_textures_y);
layer->addCloud(newpos, cld.genCloud());
//layer->addCloud(newpos, cld.genCloud());
layer->addCloud(lon, lat, z, x, y, index++, cld.genCloud());
}
}
}
@ -266,7 +247,6 @@ void FGClouds::buildLayer(int iLayer, const string& name, double coverage) {
break;
}
}
}
// Now we've built any clouds, enable them and set the density (coverage)
@ -335,7 +315,7 @@ void FGClouds::buildCloudLayers(void) {
layer_type = "sc";
}
}
cloud_root->setStringValue("layer-type",layer_type);
buildLayer(iLayer, layer_type, coverage_norm);
}
@ -349,8 +329,80 @@ void FGClouds::set_3dClouds(bool enable)
}
}
bool FGClouds::get_3dClouds() const
bool FGClouds::get_3dClouds() const
{
return clouds_3d_enabled;
}
/**
* Adds a 3D cloud to a cloud layer.
*
* Property arguments
* layer - the layer index to add this cloud to. (Defaults to 0)
* index - the index for this cloud (to be used later)
* lon/lat/alt - the position for the cloud
* (Various) - cloud definition properties. See README.3DClouds
*
*/
static bool
do_add_3Dcloud (const SGPropertyNode *arg)
{
int l = arg->getIntValue("layer", 0);
int index = arg->getIntValue("index", 0);
SGPath texture_root = globals->get_fg_root();
texture_root.append("Textures");
texture_root.append("Sky");
float lon = arg->getFloatValue("lon-deg", 0.0f);
float lat = arg->getFloatValue("lat-deg", 0.0f);
float alt = arg->getFloatValue("alt-ft", 0.0f);
// Adding a 3D cloud immediately makes this layer 3D.
thesky->get_cloud_layer(l)->set_enable3dClouds(true);
SGCloudField *layer = thesky->get_cloud_layer(l)->get_layer3D();
SGNewCloud cld = SGNewCloud(texture_root, arg);
return layer->addCloud(lon, lat, alt, index, cld.genCloud());
}
/**
* Removes a 3D cloud from a cloud layer
*
* Property arguments
*
* layer - the layer index to remove this cloud from. (defaults to 0)
* index - the cloud index
*
*/
static bool
do_delete_3Dcloud (const SGPropertyNode *arg)
{
int l = arg->getIntValue("layer", 0);
int i = arg->getIntValue("index", 0);
SGCloudField *layer = thesky->get_cloud_layer(l)->get_layer3D();
return layer->deleteCloud(i);
}
/**
* Move a cloud within a 3D layer
*
* Property arguments
* layer - the layer index to add this cloud to. (Defaults to 0)
* index - the cloud index to move.
* lon/lat/alt - the position for the cloud
*
*/
static bool
do_move_3Dcloud (const SGPropertyNode *arg)
{
int l = arg->getIntValue("layer", 0);
int i = arg->getIntValue("index", 0);
float lon = arg->getFloatValue("lon-deg", 0.0f);
float lat = arg->getFloatValue("lat-deg", 0.0f);
float alt = arg->getFloatValue("alt-ft", 0.0f);
SGCloudField *layer = thesky->get_cloud_layer(l)->get_layer3D();
return layer->repositionCloud(i, lon, lat, alt);
}

9
src/Environment/fgclouds.hxx
View file

@ -47,17 +47,24 @@ private:
int update_event;
SGSoundSample *snd_lightning;
bool clouds_3d_enabled;
int index;
public:
FGClouds();
~FGClouds();
void init(void);
void Init(void);
int get_update_event(void) const;
void set_update_event(int count);
bool get_3dClouds() const;
void set_3dClouds(bool enable);
};
static bool do_delete_3Dcloud (const SGPropertyNode *arg);
static bool do_move_3Dcloud (const SGPropertyNode *arg);
static bool do_add_3Dcloud (const SGPropertyNode *arg);
#endif // _FGCLOUDS_HXX