mirror of
https://github.com/OpenSpace/OpenSpace.git
synced 2026-04-25 13:38:35 -05:00
Alexander Bock
9047dc7a3e
* Removal of ChunkRenderer, ChunkedLodGlobe, ChunkCuller, chunklevel evaluator, culling classes, layershadermanager, GpuLayer, GPUData, ChunkNode, Grid, BasicGrid, Chunk files, Angle, AABB classes, PointGlobe, Ellipsoid, TileSelector, tiledatatype, iodescription, simplerawtilerreader, rawtilereader * Less dynamic allocation for SkirtedGrid, LayerManager, RenderableGlobe, TextureUnit * Clean up memory management in RawTiles * Code simplification * Optimize shader uniform setting * Introduce UniformCache * Callback simplification * Turn ChunkNode into a struct * Use a MemoryPool to organize all ChunkNodes rather than use unique_ptr and the necessary memory allocation * Collect draw calls * Consolidate fragment shaders between local and global renderer * Shader cleanup and optimization * Update CMake to not include included shaders * Integrate traversal function into the looping * Replace std::queue with std::vector * Merge TextureContainer into MemoryAwareTileCache * Lazy computation of chunk bounding boxes * Memory management of LayerGroup * Remove class hierarchy from tileproviders (temporaltileprovider not working yet) * Remove PBO classes * Chunk status stored in Chunk * Don't create a copy of the ChunkTilePile * Enable culling by projected area on default * Have raw tile reader return a Tile instead of a shared_ptr to a tile * Start making GDAL mandatory * Increase the default lod scale factor to 15
121 lines
4.9 KiB
Plaintext
121 lines
4.9 KiB
Plaintext
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2018 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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#ifndef TILE_HEIGHT_HGLSL
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#define TILE_HEIGHT_HGLSL
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#include "PowerScaling/powerScaling_vs.hglsl"
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#include <${MODULE_GLOBEBROWSING}/shaders/tile.hglsl>
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#ifndef USE_HEIGHTMAP
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#define USE_HEIGHTMAP #{useAccurateNormals}
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#endif //USE_HEIGHTMAP
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#ifndef USE_ACCURATE_NORMALS
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#define USE_ACCURATE_NORMALS #{useAccurateNormals}
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#endif //USE_ACCURATE_NORMALS
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#if USE_HEIGHTMAP
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uniform Layer HeightLayers[NUMLAYERS_HEIGHTMAP];
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uniform float heightScale;
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#endif // USE_HEIGHTMAP
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#if USE_ACCURATE_NORMALS && USE_HEIGHTMAP
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uniform float deltaTheta0;
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uniform float deltaTheta1;
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uniform float deltaPhi0;
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uniform float deltaPhi1;
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uniform float tileDelta;
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#endif //USE_ACCURATE_NORMALS && USE_HEIGHTMAP
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float getUntransformedTileHeight(vec2 uv, vec3 levelWeights) {
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float height = CHUNK_DEFAULT_HEIGHT;
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#if USE_HEIGHTMAP
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// Calculate desired level based on distance to the vertex on the ellipsoid
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// Before any heightmapping is done
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height = calculateUntransformedHeight(
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uv,
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levelWeights, // Variable to determine which texture to sample from
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HeightLayers // Three textures to sample from
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);
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#endif // USE_HEIGHTMAP
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return height;
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}
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float getTileHeight(vec2 uv, vec3 levelWeights) {
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float height = CHUNK_DEFAULT_HEIGHT;
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#if USE_HEIGHTMAP
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// Calculate desired level based on distance to the vertex on the ellipsoid
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// Before any heightmapping is done
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height = calculateHeight(
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uv,
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levelWeights, // Variable to determine which texture to sample from
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HeightLayers // Three textures to sample from
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);
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#endif // USE_HEIGHTMAP
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return height;
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}
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float getTileHeightScaled(vec2 uv, vec3 levelWeights) {
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float height = getTileHeight(uv, levelWeights);
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#if USE_HEIGHTMAP
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height *= heightScale;
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#endif // USE_HEIGHTMAP
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return height;
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}
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vec3 getTileNormal(vec2 uv, vec3 levelWeights, vec3 ellipsoidNormalCameraSpace,
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vec3 ellipsoidTangentThetaCameraSpace,
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vec3 ellipsoidTangentPhiCameraSpace)
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{
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vec3 normal = ellipsoidNormalCameraSpace;
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#if USE_ACCURATE_NORMALS
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float deltaPhi = mix(deltaPhi0, deltaPhi1, uv.x);
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float deltaTheta = mix(deltaTheta0, deltaTheta1, uv.y);
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vec3 deltaPhiVec = ellipsoidTangentPhiCameraSpace * deltaPhi;
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vec3 deltaThetaVec = ellipsoidTangentThetaCameraSpace * deltaTheta;
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float height00 = getTileHeightScaled(uv, levelWeights);
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float height10 = getTileHeightScaled(uv + vec2(tileDelta, 0.0f), levelWeights);
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float height01 = getTileHeightScaled(uv + vec2(0.0f, tileDelta), levelWeights);
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vec3 diffTheta = deltaThetaVec + ellipsoidNormalCameraSpace * (height10 - height00);
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vec3 diffPhi = deltaPhiVec + ellipsoidNormalCameraSpace * (height01 - height00);
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normal = normalize(cross(diffTheta, diffPhi));
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#endif // USE_ACCURATE_NORMALS
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return normal;
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}
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#endif // TILE_HEIGHT_HGLSL
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