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fog/misg/haze: tweak layer's top and limit to 2d-clouds

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For the time being, this works only with 3d clouds disabled.
When enabled, limit the top of the misty layer to the bottom of
a possible cloudlayer above.
This commit is contained in:
Torsten Dreyer 2010-12-20 21:07:59 +01:00
parent f8015bf54f
commit f8c7f95745
1 changed files with 12 additions and 2 deletions
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14
src/Environment/metarproperties.cxx
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@ -239,7 +239,12 @@ void MetarProperties::set_metar( const char * metar )
SGPropertyNode_ptr cloudsNode = _rootNode->getNode("clouds", true );
const vector<SGMetarCloud> & metarClouds = m->getClouds();
unsigned layerOffset = 0; // Oh, this is ugly!
bool setGroundCloudLayer = _rootNode->getBoolValue("set-ground-cloud-layer", false );
// fog/mist/haze cloud layer does not work with 3d clouds yet :-(
bool setGroundCloudLayer = _rootNode->getBoolValue("set-ground-cloud-layer", false ) &&
false == (fgGetBool("/sim/rendering/shader-effects", false ) &&
fgGetBool("/sim/rendering/clouds3d-enable", false ) );
if( setGroundCloudLayer ) {
// create a cloud layer #0 starting at the ground if its fog, mist or haze
@ -266,13 +271,18 @@ void MetarProperties::set_metar( const char * metar )
coverage = SGMetarCloud::getCoverage(fgGetString("/environment/params/fog-mist-haze-layer/mist-2dlayer-coverage", SGMetarCloud::COVERAGE_OVERCAST_STRING));
thickness = fgGetDouble("/environment/params/fog-mist-haze-layer/mist-thickness-ft",2000) - LAYER_BOTTOM_STATION_OFFSET;
alpha = fgGetDouble("/environment/params/fog-mist-haze-layer/mist-2dlayer-alpha",0.8);
} else if( isHZ ) { // hase
} else if( isHZ ) { // haze
coverage = SGMetarCloud::getCoverage(fgGetString("/environment/params/fog-mist-haze-layer/mist-2dlayer-coverage", SGMetarCloud::COVERAGE_OVERCAST_STRING));
thickness = fgGetDouble("/environment/params/fog-mist-haze-layer/haze-thickness-ft",2000) - LAYER_BOTTOM_STATION_OFFSET;
alpha = fgGetDouble("/environment/params/fog-mist-haze-layer/haze-2dlayer-alpha",0.6);
}
if( coverage != SGMetarCloud::COVERAGE_NIL ) {
// if there is a layer above the fog, limit the top to one foot below that layer's bottom
if( metarClouds[0].getCoverage() != SGMetarCloud::COVERAGE_CLEAR )
thickness = metarClouds[0].getAltitude_ft() - LAYER_BOTTOM_STATION_OFFSET - 1;
SGPropertyNode_ptr layerNode = cloudsNode->getChild(LAYER, 0, true );
layerNode->setDoubleValue( "coverage-type", SGCloudLayer::getCoverageType(coverage_string[coverage]) );
layerNode->setStringValue( "coverage", coverage_string[coverage] );