From 339b7588d2f97ee96d0c9fcaabc862e223b9ae76 Mon Sep 17 00:00:00 2001 From: Perttu Ahola Date: Thu, 3 Nov 2011 13:35:09 +0200 Subject: [PATCH] Tune occlusion culling a bit --- src/map.cpp | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-) diff --git a/src/map.cpp b/src/map.cpp index e2ac5a23..3ecdfa00 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++; -- 2.30.2