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| author | Perttu Ahola <celeron55@gmail.com> | 2011-11-03 13:35:09 +0200 |
|---|---|---|
| committer | Perttu Ahola <celeron55@gmail.com> | 2011-11-03 13:35:09 +0200 |
| commit | 339b7588d2f97ee96d0c9fcaabc862e223b9ae76 (patch) | |
| tree | 66bfdd489f729317979fc1d8e7b093f88828f656 | |
| parent | 0ac5f6a7ca2854814b7676a73eb186cf60eb0c98 (diff) | |
| download | minetest-339b7588d2f97ee96d0c9fcaabc862e223b9ae76.tar.gz minetest-339b7588d2f97ee96d0c9fcaabc862e223b9ae76.tar.bz2 minetest-339b7588d2f97ee96d0c9fcaabc862e223b9ae76.zip | |
Tune occlusion culling a bit
| -rw-r--r-- | src/map.cpp | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/src/map.cpp b/src/map.cpp index e2ac5a231..3ecdfa00f 100644 --- a/src/map.cpp +++ b/src/map.cpp @@ -3613,7 +3613,7 @@ void ClientMap::OnRegisterSceneNode() ISceneNode::OnRegisterSceneNode(); } -static bool isOccluded(Map *map, v3s16 p0, v3s16 p1, float step, +static bool isOccluded(Map *map, v3s16 p0, v3s16 p1, float step, float stepfac, float start_off, float end_off, u32 needed_count) { float d0 = (float)BS * p0.getDistanceFrom(p1); @@ -3637,6 +3637,7 @@ static bool isOccluded(Map *map, v3s16 p0, v3s16 p1, float step, if(count >= needed_count) return true; } + step *= stepfac; } return false; } @@ -3845,31 +3846,32 @@ void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass) v3s16 cpn = v3s16(block->getPos() * MAP_BLOCKSIZE) + v3s16(MAP_BLOCKSIZE)/2; - float step = BS*2; - float startoff = BS*3; + float step = BS*1; + float stepfac = 1.2; + float startoff = BS*1; float endoff = -BS*MAP_BLOCKSIZE*1.42*1.42; v3s16 spn = cam_pos_nodes + v3s16(0,0,0); s16 bs2 = MAP_BLOCKSIZE/2 + 1; u32 needed_count = 1; if( isOccluded(this, spn, cpn + v3s16(0,0,0), - step, startoff, endoff, needed_count) && + step, stepfac, startoff, endoff, needed_count) && isOccluded(this, spn, cpn + v3s16(bs2,bs2,bs2), - step, startoff, endoff, needed_count) && + step, stepfac, startoff, endoff, needed_count) && isOccluded(this, spn, cpn + v3s16(bs2,bs2,-bs2), - step, startoff, endoff, needed_count) && + step, stepfac, startoff, endoff, needed_count) && isOccluded(this, spn, cpn + v3s16(bs2,-bs2,bs2), - step, startoff, endoff, needed_count) && + step, stepfac, startoff, endoff, needed_count) && isOccluded(this, spn, cpn + v3s16(bs2,-bs2,-bs2), - step, startoff, endoff, needed_count) && + step, stepfac, startoff, endoff, needed_count) && isOccluded(this, spn, cpn + v3s16(-bs2,bs2,bs2), - step, startoff, endoff, needed_count) && + step, stepfac, startoff, endoff, needed_count) && isOccluded(this, spn, cpn + v3s16(-bs2,bs2,-bs2), - step, startoff, endoff, needed_count) && + step, stepfac, startoff, endoff, needed_count) && isOccluded(this, spn, cpn + v3s16(-bs2,-bs2,bs2), - step, startoff, endoff, needed_count) && + step, stepfac, startoff, endoff, needed_count) && isOccluded(this, spn, cpn + v3s16(-bs2,-bs2,-bs2), - step, startoff, endoff, needed_count) + step, stepfac, startoff, endoff, needed_count) ) { blocks_occlusion_culled++; |