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Code Issues 150 Wiki Activity

Hold the sky back only around tunnels and keep the cab lit by day

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Hirek
2026-10-28 14:01:37 +01:00
parent e8a90507f0
commit 413cebed9c
10 changed files with 187 additions and 21 deletions
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9
rendering/common/skyocclusion.h
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@@ -142,6 +142,8 @@ class sky_occlusion
int slot{0};
std::uint32_t generation{0};
std::vector<triangle> triangles;
// points along the tracks with the tunnel flag over the tile and around it, x and z relative to the corner of the tile
std::vector<glm::vec2> tunnels;
};
// what it gives back: the heights (four per texel) and the occlusion of the texels of a tile
struct tile_result
@@ -175,6 +177,8 @@ class sky_occlusion
void gather(scene::basic_region *Region, glm::ivec2 const &Tile, std::vector<triangle> &Triangles);
void gather_model(TModel3d *Model, std::uint32_t const Alpha, glm::dmat4 const &Transform, glm::dvec2 const &Corner, glm::dvec2 const &Far, std::vector<triangle> &Triangles);
void gather_submodel(TSubModel *Submodel, std::uint32_t const Alpha, glm::dmat4 const &Transform, glm::dvec2 const &Corner, glm::dvec2 const &Far, std::vector<triangle> &Triangles);
// the points along the tracks with the tunnel flag within the reach of the mask of the tunnels of a tile (gfx_skyvisibility_tunnels)
void gather_tunnels(scene::basic_region *Region, glm::ivec2 const &Tile, std::vector<glm::vec2> &Points);
// what the scenery over a tile is made of, cheap to work out: a change of it means the tile is gathered again
std::uint64_t signature(scene::basic_region *Region, glm::ivec2 const &Tile);
// the values of a tile nothing is known of yet, in the textures and in the copy of the cpu
@@ -191,6 +195,8 @@ class sky_occlusion
layout m_layout;
int m_level{0};
bool m_sun{true};
// the occlusion only around the tracks with the tunnel flag, as at the start (Global.gfx_skyvisibility_tunnels)
bool m_tunnels{true};
std::vector<slot> m_slots;
glm::ivec2 m_cameratile{0};
glm::dvec3 m_camera{0.0};
@@ -220,6 +226,9 @@ class sky_occlusion
std::thread m_thread;
// the maps of the thread: the top and the ceiling as rasterized, and opened
std::vector<float> m_rawtop, m_rawceiling, m_top, m_ceiling;
// how much of the occlusion a texel keeps, 0..1, by its distance from the tracks with the tunnel flag (1 everywhere without
// m_tunnels)
std::vector<float> m_mask;
// statistics
std::uint32_t m_gathered{0};