WIP: upgrading from osgEarth 2.x to osgEarth 3.x - hints

[remoe]

• some include paths are different (Symbology, Annotations, Features)
• fast_map replaced with UnorderedMap
• TerrainEffects removed.
• getProfile() -> getTilingProfile()
• MapNode::getOverlayDecorator removed (osgEarth::Util::findTopMostNodeOfType() ? )
• new ImageLayer -> ImageLayer::create
• ImageLayerOptions -> ImageLayer::Options (prevent forward declare :/ )
• ModelLayerOption -> ModelLayer::Options
• MapOptions -> Map::Options
• MapNodeOptions -> MapNode::Options
• MapFrame removed (66323ed#diff-d8a1d7c2f3a0882ff635d1e978abdc49)
• LabelSource removed (bae24a5)
• FeatureSourceFactory / OGRFeatureOptions removed ->OGRFeatureSource (osgearth_callouts sample)
• Map::isGeocentric() ->MapNode::isGeocentric()
• TerrainLayer -> TileLayer ( no getTileSource ) (Replace TerrainLayer with TileLayer/TileSourceImageLayer/TileSourceElevationLayer #1414)
• GeometryCompilerOptions::useGPUScreenSpaceLines() removed
• earth file: <sky> -> <sky_simple>

[remoe]

osgearth_pagingtest
osgearth_sharedlayer
osgearth_featuretiler

Are removed from build (CMake), why? They doesn't compile with 3.0.

can't find this includes:

• osgEarthDrivers/feature_ogr/OGRFeatureOptions
• osgEarthDrivers/model_feature_geom/FeatureGeomModelOptions

[remoe]

Can't find an alternative for GeometryCompilerOptions::useGPUScreenSpaceLines(). Is it not needed in 3.0?

[remoe]

Does anyone know why it could throw this error:

[osgEarth]* [ShaderLoader] Inline source for "RexEngine.Morphing.vert.glsl" is empty, and no external file could be found.
[osgEarth]* [ShaderLoader] Failed to load shader source from "RexEngine.Morphing.vert.glsl"

UPDATE: fixed 420e981

[plevy]

Remo, Glenn fixed the "RexEngine.Morphing.vert.glsl" issue earlier today

[remoe]

How one can convert this earth file fragment to osgEarth 3.0 ?

<sky driver="simple" hours="12.0" ambient="0.3"/>

UPDATE: #1491
2. UPDATE: need to write:

<sky_simple hours="12.0" ambient="0.3"/>

[Himbeertoni]

• The color filters (Gamma, RGB, BrightnessContrast) for the image layers are gone in 3.0
• I had to call osgEarth::MapNode::open() after creating the osgEarth::Map, otherwise osgEarth::MapNode::getTerrainEngine() would return a nullptr. Apparently this was done internally in versions prior to 3.0?
• I had to add ${CMAKE_CURRENT_BINARY_DIR}/build/build_include to the list of osgEarth include directories, due to the new BuildConfig.h