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Code Issues 154 Wiki Activity

Heightmap terrain: .tch chunk packs, streaming with LOD, terrain painting, water and modifiers - terrain/<name>/terrain.yaml + <px>_<pz>.tch packs of 16x16 chunks (250 m, 0.5/1/2/5 m spacing), slices with crc-32 and optional zstd (vendored zstd 1.5.6 in ref/zstd) - heightmap_terrain [name] endheightmap_terrain directive replaces editorterrain - streamer: worker threads, camera + look-ahead loading, geomipmap LOD with skirts, pooled geometry - mat_terrain shader: up to 8 painted layer materials per chunk via texture arrays (opengl33); other renderers fall back to the dominant material - water bodies (outline + level), terrain modifiers (vertical profile shaping kept non-destructive) - F11 Terrain work mode rebuilt: chunks, sculpt, smooth, paint, point spacing, water tools

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Hirek
2026-10-09 21:02:25 +02:00
parent bbccce0e29
commit 35bda3778c
26 changed files with 52888 additions and 1624 deletions
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18
rendering/renderer.h
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@@ -21,6 +21,16 @@ namespace gl
class program;
}
namespace gfx
{
// material painted over the heightmap terrain, and the size (metres) its textures are repeated at; 0: the size given by the material, or 8 m
struct terrain_layer
{
material_handle material{null_handle};
float size{0.f};
};
} // namespace gfx
class gfx_renderer {
public:
@@ -58,6 +68,14 @@ public:
virtual auto Fetch_Material( std::string const &Filename, bool const Loadnow = true ) -> material_handle = 0;
virtual void Bind_Material( material_handle const Material, TSubModel const *sm = nullptr, lighting_data const *lighting = nullptr ) = 0;
virtual auto Material( material_handle const Material ) const -> IMaterial const * = 0;
// heightmap terrain: material of a chunk blending the materials of up to 8 layers by their weights.
// Weights: (Samples + 1)^2 values per layer, planar, rows of growing z, the weights of a sample adding up to 255; null with a single layer.
// Placement: corner of the chunk (x, z) in the texture coordinates of its mesh, and the size of the chunk.
// Reuse: a material made by this call before, to be filled anew, or null_handle.
// returns: the material. backends which can't blend give back the material of the layer covering the most
virtual auto Terrain_Material( material_handle const Reuse, std::vector<gfx::terrain_layer> const &Layers, int const Samples, std::uint8_t const *Weights, glm::vec3 const &Placement ) -> material_handle;
// gives back a material made by Terrain_Material, once its chunk is gone
virtual void Terrain_Release( material_handle const Material ) {}
// shader methods
virtual auto Fetch_Shader( std::string const &name ) -> std::shared_ptr<gl::program> = 0;
// texture methods