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Add depth sorting for node faces (#11696)

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Use BSP tree to order transparent triangles
https://en.wikipedia.org/wiki/Binary_space_partitioning
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x2048 2022-04-02 10:42:27 +02:00 • committed by GitHub
parent 26c046a563
commit b0b9732359
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GPG key ID: 4AEE18F83AFDEB23
8 changed files with 628 additions and 92 deletions
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43
src/client/clientmap.h
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@ -56,6 +56,7 @@ struct MeshBufListList
class Client;
class ITextureSource;
class PartialMeshBuffer;
/*
ClientMap
@ -85,21 +86,7 @@ public:
ISceneNode::drop();
}
void updateCamera(const v3f &pos, const v3f &dir, f32 fov, const v3s16 &offset)
{
v3s16 previous_block = getContainerPos(floatToInt(m_camera_position, BS) + m_camera_offset, MAP_BLOCKSIZE);
m_camera_position = pos;
m_camera_direction = dir;
m_camera_fov = fov;
m_camera_offset = offset;
v3s16 current_block = getContainerPos(floatToInt(m_camera_position, BS) + m_camera_offset, MAP_BLOCKSIZE);
// reorder the blocks when camera crosses block boundary
if (previous_block != current_block)
m_needs_update_drawlist = true;
}
void updateCamera(v3f pos, v3f dir, f32 fov, v3s16 offset);
/*
Forcefully get a sector from somewhere
@ -150,6 +137,10 @@ public:
f32 getCameraFov() const { return m_camera_fov; }
private:
// update the vertex order in transparent mesh buffers
void updateTransparentMeshBuffers();
// Orders blocks by distance to the camera
class MapBlockComparer
{
@ -167,6 +158,26 @@ private:
v3s16 m_camera_block;
};
// reference to a mesh buffer used when rendering the map.
struct DrawDescriptor {
v3s16 m_pos;
union {
scene::IMeshBuffer *m_buffer;
const PartialMeshBuffer *m_partial_buffer;
};
bool m_reuse_material:1;
bool m_use_partial_buffer:1;
DrawDescriptor(v3s16 pos, scene::IMeshBuffer *buffer, bool reuse_material) :
m_pos(pos), m_buffer(buffer), m_reuse_material(reuse_material), m_use_partial_buffer(false)
{}
DrawDescriptor(v3s16 pos, const PartialMeshBuffer *buffer) :
m_pos(pos), m_partial_buffer(buffer), m_reuse_material(false), m_use_partial_buffer(true)
{}
};
Client *m_client;
RenderingEngine *m_rendering_engine;
@ -179,6 +190,7 @@ private:
v3f m_camera_direction = v3f(0,0,1);
f32 m_camera_fov = M_PI;
v3s16 m_camera_offset;
bool m_needs_update_transparent_meshes = true;
std::map<v3s16, MapBlock*, MapBlockComparer> m_drawlist;
std::map<v3s16, MapBlock*> m_drawlist_shadow;
@ -190,4 +202,5 @@ private:
bool m_cache_bilinear_filter;
bool m_cache_anistropic_filter;
bool m_added_to_shadow_renderer{false};
u16 m_cache_transparency_sorting_distance;
};