forked from Mirrorlandia_minetest/minetest
Keep mapblocks in memory if they're in range (#10714)
Some other minor parts of clientmap.cpp have been cleaned up along the way
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3edb1ddb81
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@ -165,6 +165,9 @@ void ClientMap::updateDrawList()
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v3s16 p_blocks_max;
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getBlocksInViewRange(cam_pos_nodes, &p_blocks_min, &p_blocks_max);
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// Read the vision range, unless unlimited range is enabled.
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float range = m_control.range_all ? 1e7 : m_control.wanted_range;
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// Number of blocks currently loaded by the client
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u32 blocks_loaded = 0;
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// Number of blocks with mesh in rendering range
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@ -182,6 +185,7 @@ void ClientMap::updateDrawList()
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occlusion_culling_enabled = false;
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}
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// Uncomment to debug occluded blocks in the wireframe mode
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// TODO: Include this as a flag for an extended debugging setting
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//if (occlusion_culling_enabled && m_control.show_wireframe)
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@ -218,32 +222,34 @@ void ClientMap::updateDrawList()
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continue;
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}
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float range = 100000 * BS;
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if (!m_control.range_all)
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range = m_control.wanted_range * BS;
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v3s16 block_coord = block->getPos();
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v3s16 block_position = block->getPosRelative() + MAP_BLOCKSIZE / 2;
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float d = 0.0;
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if (!isBlockInSight(block->getPos(), camera_position,
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camera_direction, camera_fov, range, &d))
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continue;
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// First, perform a simple distance check, with a padding of one extra block.
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if (!m_control.range_all &&
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block_position.getDistanceFrom(cam_pos_nodes) > range + MAP_BLOCKSIZE)
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continue; // Out of range, skip.
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// Keep the block alive as long as it is in range.
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block->resetUsageTimer();
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blocks_in_range_with_mesh++;
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/*
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Occlusion culling
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*/
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// Frustum culling
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float d = 0.0;
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if (!isBlockInSight(block_coord, camera_position,
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camera_direction, camera_fov, range * BS, &d))
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continue;
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// Occlusion culling
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if ((!m_control.range_all && d > m_control.wanted_range * BS) ||
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(occlusion_culling_enabled && isBlockOccluded(block, cam_pos_nodes))) {
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blocks_occlusion_culled++;
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continue;
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}
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// This block is in range. Reset usage timer.
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block->resetUsageTimer();
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// Add to set
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block->refGrab();
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m_drawlist[block->getPos()] = block;
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m_drawlist[block_coord] = block;
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sector_blocks_drawn++;
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} // foreach sectorblocks
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@ -282,8 +288,6 @@ void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass)
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const u32 daynight_ratio = m_client->getEnv().getDayNightRatio();
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const v3f camera_position = m_camera_position;
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const v3f camera_direction = m_camera_direction;
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const f32 camera_fov = m_camera_fov;
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/*
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Get all blocks and draw all visible ones
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@ -310,11 +314,10 @@ void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass)
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if (!block->mesh)
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continue;
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float d = 0.0;
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if (!isBlockInSight(block->getPos(), camera_position,
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camera_direction, camera_fov, 100000 * BS, &d))
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continue;
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v3f block_pos_r = intToFloat(block->getPosRelative() + MAP_BLOCKSIZE / 2, BS);
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float d = camera_position.getDistanceFrom(block_pos_r);
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d = MYMAX(0,d - BLOCK_MAX_RADIUS);
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// Mesh animation
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if (pass == scene::ESNRP_SOLID) {
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//MutexAutoLock lock(block->mesh_mutex);
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@ -106,10 +106,6 @@ u64 murmur_hash_64_ua(const void *key, int len, unsigned int seed)
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bool isBlockInSight(v3s16 blockpos_b, v3f camera_pos, v3f camera_dir,
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f32 camera_fov, f32 range, f32 *distance_ptr)
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{
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// Maximum radius of a block. The magic number is
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// sqrt(3.0) / 2.0 in literal form.
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static constexpr const f32 block_max_radius = 0.866025403784f * MAP_BLOCKSIZE * BS;
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v3s16 blockpos_nodes = blockpos_b * MAP_BLOCKSIZE;
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// Block center position
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@ -123,7 +119,7 @@ bool isBlockInSight(v3s16 blockpos_b, v3f camera_pos, v3f camera_dir,
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v3f blockpos_relative = blockpos - camera_pos;
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// Total distance
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f32 d = MYMAX(0, blockpos_relative.getLength() - block_max_radius);
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f32 d = MYMAX(0, blockpos_relative.getLength() - BLOCK_MAX_RADIUS);
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if (distance_ptr)
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*distance_ptr = d;
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@ -141,7 +137,7 @@ bool isBlockInSight(v3s16 blockpos_b, v3f camera_pos, v3f camera_dir,
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// such that a block that has any portion visible with the
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// current camera position will have the center visible at the
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// adjusted postion
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f32 adjdist = block_max_radius / cos((M_PI - camera_fov) / 2);
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f32 adjdist = BLOCK_MAX_RADIUS / cos((M_PI - camera_fov) / 2);
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// Block position relative to adjusted camera
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v3f blockpos_adj = blockpos - (camera_pos - camera_dir * adjdist);
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@ -20,6 +20,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#pragma once
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#include "basic_macros.h"
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#include "constants.h"
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#include "irrlichttypes.h"
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#include "irr_v2d.h"
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#include "irr_v3d.h"
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@ -36,6 +37,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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y = temp; \
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} while (0)
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// Maximum radius of a block. The magic number is
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// sqrt(3.0) / 2.0 in literal form.
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static constexpr const f32 BLOCK_MAX_RADIUS = 0.866025403784f * MAP_BLOCKSIZE * BS;
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inline s16 getContainerPos(s16 p, s16 d)
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{
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