--- title: "UNIGINE 2.4.1: Stabilization, Interactive BIM Demo" version: "2.4.1" release_date: 2017-03-01 lang: en slug: "unigine2.4.1" entry_id: 132 author: "fox@unigine.com" source: "20170301-unigine-2.4.1/index.xml" source_url: "https://developer.unigine.com/devlog/20170301-unigine-2.4.1" --- # UNIGINE 2.4.1: Stabilization, Interactive BIM Demo ## Key Changes - Optimized ObjectTerrainGlobal. - ObjectCloudLayer improvements. - Landscape tool optimizations. - Improved API for geo-referenced vector data manipulations. - Overall engine improvements and bugfixes. - Added interactive features into Oil Refinery demo. - New C# integration samples. This is primarily a stabilization release, all users are strongly recommended to update. **Video (YouTube):** https://www.youtube.com/watch?v=XykbLnLQZUs ## Oil Refinery Demo Oil Refinery demo got a lot of interactive features to showcase BIM (Building Information Model) capabilities of the engine. - An interactive personnel training usecase: a sequence of operations required to start a diesel generator. - Displaying various types of metadata (statistics, telemetry data, etc.) bound to certain buildings and facilities enables to control various parameters in real time. - Visualization of construction stages can be useful for overall construction process planning. - A day-night cycle provides an opportunity to check all lighting systems of the enterprise. - Video sequences can be used to make high-quality presentations of the project. ![](https://developer.unigine.com/devlog/20170301-unigine-2.4.1/oil_refinery0.jpg) ![](https://developer.unigine.com/devlog/20170301-unigine-2.4.1/oil_refinery1.jpg) ![](https://developer.unigine.com/devlog/20170301-unigine-2.4.1/oil_refinery2.jpg) General features of the demo: - **360 000** square meters territory. - Over **45M** polygons. - Over **19000** geometry surfaces. - Over **1300** light sources. - Over **100** unique models. - A set of modes making it possible to explore every corner of the oil refinery in various aspects. - Dynamic sky with volumetric clouds and tweakable day-night cycle. - Adjustable weather and wind speed. - Scalable quality settings. - VR support (Oculus Rift and HTC Vive). ## ObjectTerrainGlobal - Optimized tiles loading. - Fixed smoothing when loading tiles. - Fixed shadows rendering. - Fixed artefacts occurring when filtration was enabled. - Fixed bug with ObjectTerrainGlobal intersection check if no patches were created. - Fixed crash in ObjectTerrainGlobal on video_restart. - Fixed rendering when “No imagery data” was enabled. ## Landscape Tool - Improved performance due to generation of normals along with elevation. - Added validation of the GPU compression. - Added saving the GDAL info into assets, which provides faster assets opening and prevents opening of the file descriptors for every source. - Increased RAM limit option to 20-70%. - Added the GPU compression to assets. - Added the UNG compression. - Fixed memory leaks during generation. - Fixed clean up of the data when generating a new landscape. - Fixed values of estimated generation time. ## Geodetics - Added a [DatasetRasterPosResolver](https://developer.unigine.com/en/docs/2.4.1/api/library/geodetics/class.datasetrasterposresolver) class that performs conversion between raster (X, Y) and geodetic (latitude, longitude) coordinates. - Added GeodeticPivot::mapMeshFlatToEllipsoid and GeodeticPivot::mapMeshEllipsoidToFlat methods that: - Map a flat mesh by using the local coordinates (X, Y) as position on the flat plane and Z as an altitude to the ellipsoid and vice versa. - Work with Mesh class which can be lately passed to any related node or used directly. - Return position on the ellipsoid or flat plane where the node is to be placed. - Old updateTopology / clearTopology methods from DecalMesh and ObjectMeshStatic nodes have been removed. - Added GeodeticPivot::mapFlatToGeodetic and GeodeticPivot::mapGeodeticToFlat methods that: - Map geodetic latitude, longitude and altitude coordinates to the flat plane coordinates according to pivot's origin latitude, longitude and altitude and vice versa. - Use new ellipsoid math. - Added correct curving of ObjectGrass and ObjectMeshClutter. - Added orientation flag for ObjectGrass, ObjectMeshClutter and WorldClutter. - Updated GeodeticPivot migration script. - Removed the ellipsoid mode from legacy UnigineEditor and experimental UnigineEditor2. - Old ObjectTerrain and ObjectSky now use the new math. - Fixed mapped mesh bounds causing wrong intersection and visibility checks. - Fixed engine crash due to the invalid GeodeticPivot pointer. - Fixed reflections on the curved surfaces. - Fixed lighting of deferred objects if ObjectCloudLayer and GeodeticPivot were added to the scene. ## Other Engine Improvements - Added support for ZLC1/ZLC2 textures. - Refactored mesh instancing for ObjectMeshStatic, ObjectMeshDynamic, ObjectMeshCluster and ObjectMeshClutter: - Increased DirectX 11 instance count (256 instances per draw call). - OpenGL instance count remained the same (41 instances per draw call). - Removed NUM_INSTANCES shader define from UUSL, now engine will automatically set RENDER_MESH_NUM_INSTANCES shader definition. - Fixed ObjectMeshClutter intersections. - The slash at the end of the path specification in the Dir class is no longer required. - Reduced memory consumption of FieldShoreline and FieldHeight texture buffers. - Fixed ObjectWaterGlobal visibility distance (the correct value is 400+ km). - Fixed planar reflections on ObjectWaterGlobal and ObjectWaterMesh. - Fixed artefacts on lighting through the semi-transparent nodes on AMD. - Fixed work of normal maps. - Fixed playback of animations generated from the FBX file without geometry. - Fixed double precision support for macOS causing shader compilation errors (requires GL_ARB_gpu_shader_fp64 extension support). - Fixed passing of shader definitions and reduced the number of shader allocations. - Fixed projection of the mesh decals. - ObjectCloudLayer bugfixes: - Fixed sorting when curving several layers. - Fixed incorrect lighting at specific angles. - Fixed overexposure. - Fixed writing to the velocity buffer. ## API - Added the Visualizer::clear method that clears the internal buffer filled after calling any of Visualizer::render\* methods. - Added the “unique” flag to DecalMesh::setMesh and ObjectMeshStatic::setMesh. It allows overriding a shared mesh resource or creating a new unique resource. - Added grab(), release() and isOwner() methods to the PackageUng class. The complete list of API changes is available in the [API Migration Guide](https://developer.unigine.com/en/docs/future/migration/migration_api). ## C# Integration Samples - Restored D3D11SharpAppForm and GLTKAppForm samples (integration of the engine to the Windows Forms). - Added new D3D11SharpWPF and GLTKSharpWPF samples (integration of the engine to the WPF - Windows Presentation Foundation). ## UnigineEditor - Added the “Combine by LODs” option to the FBX import. It provides settings for custom LODs combination. - Updated OpenFlight Import plugin: - Increased import speed due to skipping the recurrent DXT textures compression. - Added support for semi-transparent materials. - Added default specular texture. - Added additional relative paths for textures search. - Disabled “Instance material” option by default. - Added play and stop of WorldTransformPath node animation to Unigine Tracker. - Fixed creation of extra clones when several nodes are selected. - Fixed incorrect hierarchy of the cloned nodes. ## Experimental UnigineEditor2 - Fixed work with Starter and Professional builds. - Fixed work in the Windows 7 builds. - Fixed bugs with assets renaming. ## Documentation Added C++ tutorials on physics: - [Creating a Car with Suspension Joints](https://developer.unigine.com/en/docs/2.4.1/code/uniginescript/usage/car_suspension_joints/) - [Creating a Simple Mechanism Using Joints](https://developer.unigine.com/en/docs/2.4.1/code/uniginescript/usage/simple_mechanism_joints/) - [Creating Pylons and Wires Using Ropes](https://developer.unigine.com/en/docs/2.4.1/code/uniginescript/usage/ropes_creating_pylons_and_wires/) - [Enabling Selective Surface-Based Collision](https://developer.unigine.com/en/docs/2.4.1/code/uniginescript/usage/enabling_collision/) - [Creating and Attaching a Cloth](https://developer.unigine.com/en/docs/2.4.1/code/uniginescript/usage/cloth_particle_joint/)