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Tune occlusion culling a bit

master
Perttu Ahola 2011-11-03 13:35:09 +02:00
parent 0ac5f6a7ca
commit 339b7588d2
1 changed files with 14 additions and 12 deletions
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26
src/map.cpp
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@ -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++;