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Texture Splating Utility

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@stephen-hqxu stephen-hqxu released this 29 Oct 17:22
v0.8.0
7b37487
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Release 0.8.0

In this release we introduces various tools for texturing which will be implemented in the later release, as well as some general quality-of-life improvements to our engine.

See developer notes in #29 to learn more about rule-based biome-dependent texture splatting

Texture

STPTextureDatabase

STPTextureDatabase is a non-owning storage of collection of texture data and information.

As discussed in the related PR, textures are managed into texture, group and map. Each texture contains multiple maps of different types, and one map belongs to a group which contains properties of all maps.

STPTextureSplatBuilder

Part of STPTextureDatabase. A simple utility that allows each biome to have different texture. Texture can have different splatting rules within the biome on the terrain, and currently the builder allows altitude and gradient splatting. Each rule maps to a texture which allow implementation to render the texture for that active region.

STPDatabaseView

Part of STPTextureDatabase. It allows querying large result sets from database for efficient data processing by STPTextureFactory.

STPTextureFactory

A generator class that takes a texture database, making some batch queries and convert all texture and rules into new data structures such that device and shader can make use of those information efficiently to generate terrain texture splatmap.

New

  • Introduce STPHashCombine for mixing up hash values. It was previously located in STPChunkStorage.
  • Introduce STPRuntimeCompilable as a high-level wrapper to NVRTC APIs, it was previously part of STPDiversityGeneratorRTC which has been removed in this update. To keep using JIT compilation feature for diversity generator client must inherit both STPDiversityGenerator and STPRuntimeCompilable.
  • SQLite is now one of the middleware of SuperTerrain+. Introduce STPSQLite.h as a compatibility include header.
  • Introduce STPOpenGL as a compatibility header to glad.h.
  • New exception type STPDatabaseError.
  • New error handling functionality for errors from SQLite.

General fixes and improvements

  • Update unit test system to catchorg/Catch2@48a8898
  • Replace std::string usage in STPConsoleReporter with std::string_view.
  • Refine reallocation condition, array insertion function and memory operations in STPSingleHistogramFilter, making it more efficient.
  • Replace static-only classes with namespaces.
  • Update README and LICENSE.
  • Declare noexcept for all copy/move constructors/assignment operators.
  • Improve CUDA stream sync. behavio in STPChunkManager.
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