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Diffstat (limited to 'src/mapblock_mesh.cpp')
| -rw-r--r-- | src/mapblock_mesh.cpp | 1389 |
1 files changed, 0 insertions, 1389 deletions
diff --git a/src/mapblock_mesh.cpp b/src/mapblock_mesh.cpp deleted file mode 100644 index ed8a073de..000000000 --- a/src/mapblock_mesh.cpp +++ /dev/null @@ -1,1389 +0,0 @@ -/* -Minetest -Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com> - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU Lesser General Public License as published by -the Free Software Foundation; either version 2.1 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU Lesser General Public License for more details. - -You should have received a copy of the GNU Lesser General Public License along -with this program; if not, write to the Free Software Foundation, Inc., -51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. -*/ - -#include "mapblock_mesh.h" -#include "client.h" -#include "mapblock.h" -#include "map.h" -#include "profiler.h" -#include "shader.h" -#include "mesh.h" -#include "minimap.h" -#include "content_mapblock.h" -#include "util/directiontables.h" -#include "client/meshgen/collector.h" -#include "client/renderingengine.h" -#include <array> - -/* - MeshMakeData -*/ - -MeshMakeData::MeshMakeData(Client *client, bool use_shaders, - bool use_tangent_vertices): - m_client(client), - m_use_shaders(use_shaders), - m_use_tangent_vertices(use_tangent_vertices) -{} - -void MeshMakeData::fillBlockDataBegin(const v3s16 &blockpos) -{ - m_blockpos = blockpos; - - v3s16 blockpos_nodes = m_blockpos*MAP_BLOCKSIZE; - - m_vmanip.clear(); - VoxelArea voxel_area(blockpos_nodes - v3s16(1,1,1) * MAP_BLOCKSIZE, - blockpos_nodes + v3s16(1,1,1) * MAP_BLOCKSIZE*2-v3s16(1,1,1)); - m_vmanip.addArea(voxel_area); -} - -void MeshMakeData::fillBlockData(const v3s16 &block_offset, MapNode *data) -{ - v3s16 data_size(MAP_BLOCKSIZE, MAP_BLOCKSIZE, MAP_BLOCKSIZE); - VoxelArea data_area(v3s16(0,0,0), data_size - v3s16(1,1,1)); - - v3s16 bp = m_blockpos + block_offset; - v3s16 blockpos_nodes = bp * MAP_BLOCKSIZE; - m_vmanip.copyFrom(data, data_area, v3s16(0,0,0), blockpos_nodes, data_size); -} - -void MeshMakeData::fill(MapBlock *block) -{ - fillBlockDataBegin(block->getPos()); - - fillBlockData(v3s16(0,0,0), block->getData()); - - // Get map for reading neighbor blocks - Map *map = block->getParent(); - - for (const v3s16 &dir : g_26dirs) { - v3s16 bp = m_blockpos + dir; - MapBlock *b = map->getBlockNoCreateNoEx(bp); - if(b) - fillBlockData(dir, b->getData()); - } -} - -void MeshMakeData::fillSingleNode(MapNode *node) -{ - m_blockpos = v3s16(0,0,0); - - v3s16 blockpos_nodes = v3s16(0,0,0); - VoxelArea area(blockpos_nodes-v3s16(1,1,1)*MAP_BLOCKSIZE, - blockpos_nodes+v3s16(1,1,1)*MAP_BLOCKSIZE*2-v3s16(1,1,1)); - s32 volume = area.getVolume(); - s32 our_node_index = area.index(1,1,1); - - // Allocate this block + neighbors - m_vmanip.clear(); - m_vmanip.addArea(area); - - // Fill in data - MapNode *data = new MapNode[volume]; - for(s32 i = 0; i < volume; i++) - { - if (i == our_node_index) - data[i] = *node; - else - data[i] = MapNode(CONTENT_AIR, LIGHT_MAX, 0); - } - m_vmanip.copyFrom(data, area, area.MinEdge, area.MinEdge, area.getExtent()); - delete[] data; -} - -void MeshMakeData::setCrack(int crack_level, v3s16 crack_pos) -{ - if (crack_level >= 0) - m_crack_pos_relative = crack_pos - m_blockpos*MAP_BLOCKSIZE; -} - -void MeshMakeData::setSmoothLighting(bool smooth_lighting) -{ - m_smooth_lighting = smooth_lighting; -} - -/* - Light and vertex color functions -*/ - -/* - Calculate non-smooth lighting at interior of node. - Single light bank. -*/ -static u8 getInteriorLight(enum LightBank bank, MapNode n, s32 increment, - const NodeDefManager *ndef) -{ - u8 light = n.getLight(bank, ndef); - if (light > 0) - light = rangelim(light + increment, 0, LIGHT_SUN); - return decode_light(light); -} - -/* - Calculate non-smooth lighting at interior of node. - Both light banks. -*/ -u16 getInteriorLight(MapNode n, s32 increment, const NodeDefManager *ndef) -{ - u16 day = getInteriorLight(LIGHTBANK_DAY, n, increment, ndef); - u16 night = getInteriorLight(LIGHTBANK_NIGHT, n, increment, ndef); - return day | (night << 8); -} - -/* - Calculate non-smooth lighting at face of node. - Single light bank. -*/ -static u8 getFaceLight(enum LightBank bank, MapNode n, MapNode n2, - v3s16 face_dir, const NodeDefManager *ndef) -{ - u8 light; - u8 l1 = n.getLight(bank, ndef); - u8 l2 = n2.getLight(bank, ndef); - if(l1 > l2) - light = l1; - else - light = l2; - - // Boost light level for light sources - u8 light_source = MYMAX(ndef->get(n).light_source, - ndef->get(n2).light_source); - if(light_source > light) - light = light_source; - - return decode_light(light); -} - -/* - Calculate non-smooth lighting at face of node. - Both light banks. -*/ -u16 getFaceLight(MapNode n, MapNode n2, const v3s16 &face_dir, - const NodeDefManager *ndef) -{ - u16 day = getFaceLight(LIGHTBANK_DAY, n, n2, face_dir, ndef); - u16 night = getFaceLight(LIGHTBANK_NIGHT, n, n2, face_dir, ndef); - return day | (night << 8); -} - -/* - Calculate smooth lighting at the XYZ- corner of p. - Both light banks -*/ -static u16 getSmoothLightCombined(const v3s16 &p, - const std::array<v3s16,8> &dirs, MeshMakeData *data) -{ - const NodeDefManager *ndef = data->m_client->ndef(); - - u16 ambient_occlusion = 0; - u16 light_count = 0; - u8 light_source_max = 0; - u16 light_day = 0; - u16 light_night = 0; - bool direct_sunlight = false; - - auto add_node = [&] (u8 i, bool obstructed = false) -> bool { - if (obstructed) { - ambient_occlusion++; - return false; - } - MapNode n = data->m_vmanip.getNodeNoExNoEmerge(p + dirs[i]); - if (n.getContent() == CONTENT_IGNORE) - return true; - const ContentFeatures &f = ndef->get(n); - if (f.light_source > light_source_max) - light_source_max = f.light_source; - // Check f.solidness because fast-style leaves look better this way - if (f.param_type == CPT_LIGHT && f.solidness != 2) { - u8 light_level_day = n.getLightNoChecks(LIGHTBANK_DAY, &f); - u8 light_level_night = n.getLightNoChecks(LIGHTBANK_NIGHT, &f); - if (light_level_day == LIGHT_SUN) - direct_sunlight = true; - light_day += decode_light(light_level_day); - light_night += decode_light(light_level_night); - light_count++; - } else { - ambient_occlusion++; - } - return f.light_propagates; - }; - - std::array<bool, 4> obstructed = {{ 1, 1, 1, 1 }}; - add_node(0); - bool opaque1 = !add_node(1); - bool opaque2 = !add_node(2); - bool opaque3 = !add_node(3); - obstructed[0] = opaque1 && opaque2; - obstructed[1] = opaque1 && opaque3; - obstructed[2] = opaque2 && opaque3; - for (u8 k = 0; k < 3; ++k) - if (add_node(k + 4, obstructed[k])) - obstructed[3] = false; - if (add_node(7, obstructed[3])) { // wrap light around nodes - ambient_occlusion -= 3; - for (u8 k = 0; k < 3; ++k) - add_node(k + 4, !obstructed[k]); - } - - if (light_count == 0) { - light_day = light_night = 0; - } else { - light_day /= light_count; - light_night /= light_count; - } - - // boost direct sunlight, if any - if (direct_sunlight) - light_day = 0xFF; - - // Boost brightness around light sources - bool skip_ambient_occlusion_day = false; - if (decode_light(light_source_max) >= light_day) { - light_day = decode_light(light_source_max); - skip_ambient_occlusion_day = true; - } - - bool skip_ambient_occlusion_night = false; - if(decode_light(light_source_max) >= light_night) { - light_night = decode_light(light_source_max); - skip_ambient_occlusion_night = true; - } - - if (ambient_occlusion > 4) { - static thread_local const float ao_gamma = rangelim( - g_settings->getFloat("ambient_occlusion_gamma"), 0.25, 4.0); - - // Table of gamma space multiply factors. - static thread_local const float light_amount[3] = { - powf(0.75, 1.0 / ao_gamma), - powf(0.5, 1.0 / ao_gamma), - powf(0.25, 1.0 / ao_gamma) - }; - - //calculate table index for gamma space multiplier - ambient_occlusion -= 5; - - if (!skip_ambient_occlusion_day) - light_day = rangelim(core::round32( - light_day * light_amount[ambient_occlusion]), 0, 255); - if (!skip_ambient_occlusion_night) - light_night = rangelim(core::round32( - light_night * light_amount[ambient_occlusion]), 0, 255); - } - - return light_day | (light_night << 8); -} - -/* - Calculate smooth lighting at the given corner of p. - Both light banks. - Node at p is solid, and thus the lighting is face-dependent. -*/ -u16 getSmoothLightSolid(const v3s16 &p, const v3s16 &face_dir, const v3s16 &corner, MeshMakeData *data) -{ - return getSmoothLightTransparent(p + face_dir, corner - 2 * face_dir, data); -} - -/* - Calculate smooth lighting at the given corner of p. - Both light banks. - Node at p is not solid, and the lighting is not face-dependent. -*/ -u16 getSmoothLightTransparent(const v3s16 &p, const v3s16 &corner, MeshMakeData *data) -{ - const std::array<v3s16,8> dirs = {{ - // Always shine light - v3s16(0,0,0), - v3s16(corner.X,0,0), - v3s16(0,corner.Y,0), - v3s16(0,0,corner.Z), - - // Can be obstructed - v3s16(corner.X,corner.Y,0), - v3s16(corner.X,0,corner.Z), - v3s16(0,corner.Y,corner.Z), - v3s16(corner.X,corner.Y,corner.Z) - }}; - return getSmoothLightCombined(p, dirs, data); -} - -void get_sunlight_color(video::SColorf *sunlight, u32 daynight_ratio){ - f32 rg = daynight_ratio / 1000.0f - 0.04f; - f32 b = (0.98f * daynight_ratio) / 1000.0f + 0.078f; - sunlight->r = rg; - sunlight->g = rg; - sunlight->b = b; -} - -void final_color_blend(video::SColor *result, - u16 light, u32 daynight_ratio) -{ - video::SColorf dayLight; - get_sunlight_color(&dayLight, daynight_ratio); - final_color_blend(result, - encode_light(light, 0), dayLight); -} - -void final_color_blend(video::SColor *result, - const video::SColor &data, const video::SColorf &dayLight) -{ - static const video::SColorf artificialColor(1.04f, 1.04f, 1.04f); - - video::SColorf c(data); - f32 n = 1 - c.a; - - f32 r = c.r * (c.a * dayLight.r + n * artificialColor.r) * 2.0f; - f32 g = c.g * (c.a * dayLight.g + n * artificialColor.g) * 2.0f; - f32 b = c.b * (c.a * dayLight.b + n * artificialColor.b) * 2.0f; - - // Emphase blue a bit in darker places - // Each entry of this array represents a range of 8 blue levels - static const u8 emphase_blue_when_dark[32] = { - 1, 4, 6, 6, 6, 5, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - }; - - b += emphase_blue_when_dark[irr::core::clamp((s32) ((r + g + b) / 3 * 255), - 0, 255) / 8] / 255.0f; - - result->setRed(core::clamp((s32) (r * 255.0f), 0, 255)); - result->setGreen(core::clamp((s32) (g * 255.0f), 0, 255)); - result->setBlue(core::clamp((s32) (b * 255.0f), 0, 255)); -} - -/* - Mesh generation helpers -*/ - -/* - vertex_dirs: v3s16[4] -*/ -static void getNodeVertexDirs(const v3s16 &dir, v3s16 *vertex_dirs) -{ - /* - If looked from outside the node towards the face, the corners are: - 0: bottom-right - 1: bottom-left - 2: top-left - 3: top-right - */ - if (dir == v3s16(0, 0, 1)) { - // If looking towards z+, this is the face that is behind - // the center point, facing towards z+. - vertex_dirs[0] = v3s16(-1,-1, 1); - vertex_dirs[1] = v3s16( 1,-1, 1); - vertex_dirs[2] = v3s16( 1, 1, 1); - vertex_dirs[3] = v3s16(-1, 1, 1); - } else if (dir == v3s16(0, 0, -1)) { - // faces towards Z- - vertex_dirs[0] = v3s16( 1,-1,-1); - vertex_dirs[1] = v3s16(-1,-1,-1); - vertex_dirs[2] = v3s16(-1, 1,-1); - vertex_dirs[3] = v3s16( 1, 1,-1); - } else if (dir == v3s16(1, 0, 0)) { - // faces towards X+ - vertex_dirs[0] = v3s16( 1,-1, 1); - vertex_dirs[1] = v3s16( 1,-1,-1); - vertex_dirs[2] = v3s16( 1, 1,-1); - vertex_dirs[3] = v3s16( 1, 1, 1); - } else if (dir == v3s16(-1, 0, 0)) { - // faces towards X- - vertex_dirs[0] = v3s16(-1,-1,-1); - vertex_dirs[1] = v3s16(-1,-1, 1); - vertex_dirs[2] = v3s16(-1, 1, 1); - vertex_dirs[3] = v3s16(-1, 1,-1); - } else if (dir == v3s16(0, 1, 0)) { - // faces towards Y+ (assume Z- as "down" in texture) - vertex_dirs[0] = v3s16( 1, 1,-1); - vertex_dirs[1] = v3s16(-1, 1,-1); - vertex_dirs[2] = v3s16(-1, 1, 1); - vertex_dirs[3] = v3s16( 1, 1, 1); - } else if (dir == v3s16(0, -1, 0)) { - // faces towards Y- (assume Z+ as "down" in texture) - vertex_dirs[0] = v3s16( 1,-1, 1); - vertex_dirs[1] = v3s16(-1,-1, 1); - vertex_dirs[2] = v3s16(-1,-1,-1); - vertex_dirs[3] = v3s16( 1,-1,-1); - } -} - -static void getNodeTextureCoords(v3f base, const v3f &scale, const v3s16 &dir, float *u, float *v) -{ - if (dir.X > 0 || dir.Y > 0 || dir.Z < 0) - base -= scale; - if (dir == v3s16(0,0,1)) { - *u = -base.X - 1; - *v = -base.Y - 1; - } else if (dir == v3s16(0,0,-1)) { - *u = base.X + 1; - *v = -base.Y - 2; - } else if (dir == v3s16(1,0,0)) { - *u = base.Z + 1; - *v = -base.Y - 2; - } else if (dir == v3s16(-1,0,0)) { - *u = -base.Z - 1; - *v = -base.Y - 1; - } else if (dir == v3s16(0,1,0)) { - *u = base.X + 1; - *v = -base.Z - 2; - } else if (dir == v3s16(0,-1,0)) { - *u = base.X; - *v = base.Z; - } -} - -struct FastFace -{ - TileSpec tile; - video::S3DVertex vertices[4]; // Precalculated vertices - /*! - * The face is divided into two triangles. If this is true, - * vertices 0 and 2 are connected, othervise vertices 1 and 3 - * are connected. - */ - bool vertex_0_2_connected; -}; - -static void makeFastFace(const TileSpec &tile, u16 li0, u16 li1, u16 li2, u16 li3, - const v3f &tp, const v3f &p, const v3s16 &dir, const v3f &scale, std::vector<FastFace> &dest) -{ - // Position is at the center of the cube. - v3f pos = p * BS; - - float x0 = 0.0f; - float y0 = 0.0f; - float w = 1.0f; - float h = 1.0f; - - v3f vertex_pos[4]; - v3s16 vertex_dirs[4]; - getNodeVertexDirs(dir, vertex_dirs); - if (tile.world_aligned) - getNodeTextureCoords(tp, scale, dir, &x0, &y0); - - v3s16 t; - u16 t1; - switch (tile.rotation) { - case 0: - break; - case 1: //R90 - t = vertex_dirs[0]; - vertex_dirs[0] = vertex_dirs[3]; - vertex_dirs[3] = vertex_dirs[2]; - vertex_dirs[2] = vertex_dirs[1]; - vertex_dirs[1] = t; - t1 = li0; - li0 = li3; - li3 = li2; - li2 = li1; - li1 = t1; - break; - case 2: //R180 - t = vertex_dirs[0]; - vertex_dirs[0] = vertex_dirs[2]; - vertex_dirs[2] = t; - t = vertex_dirs[1]; - vertex_dirs[1] = vertex_dirs[3]; - vertex_dirs[3] = t; - t1 = li0; - li0 = li2; - li2 = t1; - t1 = li1; - li1 = li3; - li3 = t1; - break; - case 3: //R270 - t = vertex_dirs[0]; - vertex_dirs[0] = vertex_dirs[1]; - vertex_dirs[1] = vertex_dirs[2]; - vertex_dirs[2] = vertex_dirs[3]; - vertex_dirs[3] = t; - t1 = li0; - li0 = li1; - li1 = li2; - li2 = li3; - li3 = t1; - break; - case 4: //FXR90 - t = vertex_dirs[0]; - vertex_dirs[0] = vertex_dirs[3]; - vertex_dirs[3] = vertex_dirs[2]; - vertex_dirs[2] = vertex_dirs[1]; - vertex_dirs[1] = t; - t1 = li0; - li0 = li3; - li3 = li2; - li2 = li1; - li1 = t1; - y0 += h; - h *= -1; - break; - case 5: //FXR270 - t = vertex_dirs[0]; - vertex_dirs[0] = vertex_dirs[1]; - vertex_dirs[1] = vertex_dirs[2]; - vertex_dirs[2] = vertex_dirs[3]; - vertex_dirs[3] = t; - t1 = li0; - li0 = li1; - li1 = li2; - li2 = li3; - li3 = t1; - y0 += h; - h *= -1; - break; - case 6: //FYR90 - t = vertex_dirs[0]; - vertex_dirs[0] = vertex_dirs[3]; - vertex_dirs[3] = vertex_dirs[2]; - vertex_dirs[2] = vertex_dirs[1]; - vertex_dirs[1] = t; - t1 = li0; - li0 = li3; - li3 = li2; - li2 = li1; - li1 = t1; - x0 += w; - w *= -1; - break; - case 7: //FYR270 - t = vertex_dirs[0]; - vertex_dirs[0] = vertex_dirs[1]; - vertex_dirs[1] = vertex_dirs[2]; - vertex_dirs[2] = vertex_dirs[3]; - vertex_dirs[3] = t; - t1 = li0; - li0 = li1; - li1 = li2; - li2 = li3; - li3 = t1; - x0 += w; - w *= -1; - break; - case 8: //FX - y0 += h; - h *= -1; - break; - case 9: //FY - x0 += w; - w *= -1; - break; - default: - break; - } - - for (u16 i = 0; i < 4; i++) { - vertex_pos[i] = v3f( - BS / 2 * vertex_dirs[i].X, - BS / 2 * vertex_dirs[i].Y, - BS / 2 * vertex_dirs[i].Z - ); - } - - for (v3f &vpos : vertex_pos) { - vpos.X *= scale.X; - vpos.Y *= scale.Y; - vpos.Z *= scale.Z; - vpos += pos; - } - - f32 abs_scale = 1.0f; - if (scale.X < 0.999f || scale.X > 1.001f) abs_scale = scale.X; - else if (scale.Y < 0.999f || scale.Y > 1.001f) abs_scale = scale.Y; - else if (scale.Z < 0.999f || scale.Z > 1.001f) abs_scale = scale.Z; - - v3f normal(dir.X, dir.Y, dir.Z); - - u16 li[4] = { li0, li1, li2, li3 }; - u16 day[4]; - u16 night[4]; - - for (u8 i = 0; i < 4; i++) { - day[i] = li[i] >> 8; - night[i] = li[i] & 0xFF; - } - - bool vertex_0_2_connected = abs(day[0] - day[2]) + abs(night[0] - night[2]) - < abs(day[1] - day[3]) + abs(night[1] - night[3]); - - v2f32 f[4] = { - core::vector2d<f32>(x0 + w * abs_scale, y0 + h), - core::vector2d<f32>(x0, y0 + h), - core::vector2d<f32>(x0, y0), - core::vector2d<f32>(x0 + w * abs_scale, y0) }; - - // equivalent to dest.push_back(FastFace()) but faster - dest.emplace_back(); - FastFace& face = *dest.rbegin(); - - for (u8 i = 0; i < 4; i++) { - video::SColor c = encode_light(li[i], tile.emissive_light); - if (!tile.emissive_light) - applyFacesShading(c, normal); - - face.vertices[i] = video::S3DVertex(vertex_pos[i], normal, c, f[i]); - } - - /* - Revert triangles for nicer looking gradient if the - brightness of vertices 1 and 3 differ less than - the brightness of vertices 0 and 2. - */ - face.vertex_0_2_connected = vertex_0_2_connected; - face.tile = tile; -} - -/* - Nodes make a face if contents differ and solidness differs. - Return value: - 0: No face - 1: Face uses m1's content - 2: Face uses m2's content - equivalent: Whether the blocks share the same face (eg. water and glass) - - TODO: Add 3: Both faces drawn with backface culling, remove equivalent -*/ -static u8 face_contents(content_t m1, content_t m2, bool *equivalent, - const NodeDefManager *ndef) -{ - *equivalent = false; - - if (m1 == m2 || m1 == CONTENT_IGNORE || m2 == CONTENT_IGNORE) - return 0; - - const ContentFeatures &f1 = ndef->get(m1); - const ContentFeatures &f2 = ndef->get(m2); - - // Contents don't differ for different forms of same liquid - if (f1.sameLiquid(f2)) - return 0; - - u8 c1 = f1.solidness; - u8 c2 = f2.solidness; - - if (c1 == c2) - return 0; - - if (c1 == 0) - c1 = f1.visual_solidness; - else if (c2 == 0) - c2 = f2.visual_solidness; - - if (c1 == c2) { - *equivalent = true; - // If same solidness, liquid takes precense - if (f1.isLiquid()) - return 1; - if (f2.isLiquid()) - return 2; - } - - if (c1 > c2) - return 1; - - return 2; -} - -/* - Gets nth node tile (0 <= n <= 5). -*/ -void getNodeTileN(MapNode mn, const v3s16 &p, u8 tileindex, MeshMakeData *data, TileSpec &tile) -{ - const NodeDefManager *ndef = data->m_client->ndef(); - const ContentFeatures &f = ndef->get(mn); - tile = f.tiles[tileindex]; - bool has_crack = p == data->m_crack_pos_relative; - for (TileLayer &layer : tile.layers) { - if (layer.texture_id == 0) - continue; - if (!layer.has_color) - mn.getColor(f, &(layer.color)); - // Apply temporary crack - if (has_crack) - layer.material_flags |= MATERIAL_FLAG_CRACK; - } -} - -/* - Gets node tile given a face direction. -*/ -void getNodeTile(MapNode mn, const v3s16 &p, const v3s16 &dir, MeshMakeData *data, TileSpec &tile) -{ - const NodeDefManager *ndef = data->m_client->ndef(); - - // Direction must be (1,0,0), (-1,0,0), (0,1,0), (0,-1,0), - // (0,0,1), (0,0,-1) or (0,0,0) - assert(dir.X * dir.X + dir.Y * dir.Y + dir.Z * dir.Z <= 1); - - // Convert direction to single integer for table lookup - // 0 = (0,0,0) - // 1 = (1,0,0) - // 2 = (0,1,0) - // 3 = (0,0,1) - // 4 = invalid, treat as (0,0,0) - // 5 = (0,0,-1) - // 6 = (0,-1,0) - // 7 = (-1,0,0) - u8 dir_i = ((dir.X + 2 * dir.Y + 3 * dir.Z) & 7) * 2; - - // Get rotation for things like chests - u8 facedir = mn.getFaceDir(ndef); - - static const u16 dir_to_tile[24 * 16] = - { - // 0 +X +Y +Z -Z -Y -X -> value=tile,rotation - 0,0, 2,0 , 0,0 , 4,0 , 0,0, 5,0 , 1,0 , 3,0 , // rotate around y+ 0 - 3 - 0,0, 4,0 , 0,3 , 3,0 , 0,0, 2,0 , 1,1 , 5,0 , - 0,0, 3,0 , 0,2 , 5,0 , 0,0, 4,0 , 1,2 , 2,0 , - 0,0, 5,0 , 0,1 , 2,0 , 0,0, 3,0 , 1,3 , 4,0 , - - 0,0, 2,3 , 5,0 , 0,2 , 0,0, 1,0 , 4,2 , 3,1 , // rotate around z+ 4 - 7 - 0,0, 4,3 , 2,0 , 0,1 , 0,0, 1,1 , 3,2 , 5,1 , - 0,0, 3,3 , 4,0 , 0,0 , 0,0, 1,2 , 5,2 , 2,1 , - 0,0, 5,3 , 3,0 , 0,3 , 0,0, 1,3 , 2,2 , 4,1 , - - 0,0, 2,1 , 4,2 , 1,2 , 0,0, 0,0 , 5,0 , 3,3 , // rotate around z- 8 - 11 - 0,0, 4,1 , 3,2 , 1,3 , 0,0, 0,3 , 2,0 , 5,3 , - 0,0, 3,1 , 5,2 , 1,0 , 0,0, 0,2 , 4,0 , 2,3 , - 0,0, 5,1 , 2,2 , 1,1 , 0,0, 0,1 , 3,0 , 4,3 , - - 0,0, 0,3 , 3,3 , 4,1 , 0,0, 5,3 , 2,3 , 1,3 , // rotate around x+ 12 - 15 - 0,0, 0,2 , 5,3 , 3,1 , 0,0, 2,3 , 4,3 , 1,0 , - 0,0, 0,1 , 2,3 , 5,1 , 0,0, 4,3 , 3,3 , 1,1 , - 0,0, 0,0 , 4,3 , 2,1 , 0,0, 3,3 , 5,3 , 1,2 , - - 0,0, 1,1 , 2,1 , 4,3 , 0,0, 5,1 , 3,1 , 0,1 , // rotate around x- 16 - 19 - 0,0, 1,2 , 4,1 , 3,3 , 0,0, 2,1 , 5,1 , 0,0 , - 0,0, 1,3 , 3,1 , 5,3 , 0,0, 4,1 , 2,1 , 0,3 , - 0,0, 1,0 , 5,1 , 2,3 , 0,0, 3,1 , 4,1 , 0,2 , - - 0,0, 3,2 , 1,2 , 4,2 , 0,0, 5,2 , 0,2 , 2,2 , // rotate around y- 20 - 23 - 0,0, 5,2 , 1,3 , 3,2 , 0,0, 2,2 , 0,1 , 4,2 , - 0,0, 2,2 , 1,0 , 5,2 , 0,0, 4,2 , 0,0 , 3,2 , - 0,0, 4,2 , 1,1 , 2,2 , 0,0, 3,2 , 0,3 , 5,2 - - }; - u16 tile_index = facedir * 16 + dir_i; - getNodeTileN(mn, p, dir_to_tile[tile_index], data, tile); - tile.rotation = tile.world_aligned ? 0 : dir_to_tile[tile_index + 1]; -} - -static void getTileInfo( - // Input: - MeshMakeData *data, - const v3s16 &p, - const v3s16 &face_dir, - // Output: - bool &makes_face, - v3s16 &p_corrected, - v3s16 &face_dir_corrected, - u16 *lights, - TileSpec &tile - ) -{ - VoxelManipulator &vmanip = data->m_vmanip; - const NodeDefManager *ndef = data->m_client->ndef(); - v3s16 blockpos_nodes = data->m_blockpos * MAP_BLOCKSIZE; - - const MapNode &n0 = vmanip.getNodeRefUnsafe(blockpos_nodes + p); - - // Don't even try to get n1 if n0 is already CONTENT_IGNORE - if (n0.getContent() == CONTENT_IGNORE) { - makes_face = false; - return; - } - - const MapNode &n1 = vmanip.getNodeRefUnsafeCheckFlags(blockpos_nodes + p + face_dir); - - if (n1.getContent() == CONTENT_IGNORE) { - makes_face = false; - return; - } - - // This is hackish - bool equivalent = false; - u8 mf = face_contents(n0.getContent(), n1.getContent(), - &equivalent, ndef); - - if (mf == 0) { - makes_face = false; - return; - } - - makes_face = true; - - MapNode n = n0; - - if (mf == 1) { - p_corrected = p; - face_dir_corrected = face_dir; - } else { - n = n1; - p_corrected = p + face_dir; - face_dir_corrected = -face_dir; - } - - getNodeTile(n, p_corrected, face_dir_corrected, data, tile); - const ContentFeatures &f = ndef->get(n); - tile.emissive_light = f.light_source; - - // eg. water and glass - if (equivalent) { - for (TileLayer &layer : tile.layers) - layer.material_flags |= MATERIAL_FLAG_BACKFACE_CULLING; - } - - if (!data->m_smooth_lighting) { - lights[0] = lights[1] = lights[2] = lights[3] = - getFaceLight(n0, n1, face_dir, ndef); - } else { - v3s16 vertex_dirs[4]; - getNodeVertexDirs(face_dir_corrected, vertex_dirs); - - v3s16 light_p = blockpos_nodes + p_corrected; - for (u16 i = 0; i < 4; i++) - lights[i] = getSmoothLightSolid(light_p, face_dir_corrected, vertex_dirs[i], data); - } -} - -/* - startpos: - translate_dir: unit vector with only one of x, y or z - face_dir: unit vector with only one of x, y or z -*/ -static void updateFastFaceRow( - MeshMakeData *data, - const v3s16 &&startpos, - v3s16 translate_dir, - const v3f &&translate_dir_f, - const v3s16 &&face_dir, - std::vector<FastFace> &dest) -{ - v3s16 p = startpos; - - u16 continuous_tiles_count = 1; - - bool makes_face = false; - v3s16 p_corrected; - v3s16 face_dir_corrected; - u16 lights[4] = {0, 0, 0, 0}; - TileSpec tile; - getTileInfo(data, p, face_dir, - makes_face, p_corrected, face_dir_corrected, - lights, tile); - - // Unroll this variable which has a significant build cost - TileSpec next_tile; - for (u16 j = 0; j < MAP_BLOCKSIZE; j++) { - // If tiling can be done, this is set to false in the next step - bool next_is_different = true; - - v3s16 p_next; - - bool next_makes_face = false; - v3s16 next_p_corrected; - v3s16 next_face_dir_corrected; - u16 next_lights[4] = {0, 0, 0, 0}; - - // If at last position, there is nothing to compare to and - // the face must be drawn anyway - if (j != MAP_BLOCKSIZE - 1) { - p_next = p + translate_dir; - - getTileInfo(data, p_next, face_dir, - next_makes_face, next_p_corrected, - next_face_dir_corrected, next_lights, - next_tile); - - if (next_makes_face == makes_face - && next_p_corrected == p_corrected + translate_dir - && next_face_dir_corrected == face_dir_corrected - && memcmp(next_lights, lights, ARRLEN(lights) * sizeof(u16)) == 0 - && next_tile.isTileable(tile)) { - next_is_different = false; - continuous_tiles_count++; - } - } - if (next_is_different) { - /* - Create a face if there should be one - */ - if (makes_face) { - // Floating point conversion of the position vector - v3f pf(p_corrected.X, p_corrected.Y, p_corrected.Z); - // Center point of face (kind of) - v3f sp = pf - ((f32)continuous_tiles_count * 0.5f - 0.5f) - * translate_dir_f; - v3f scale(1, 1, 1); - - if (translate_dir.X != 0) - scale.X = continuous_tiles_count; - if (translate_dir.Y != 0) - scale.Y = continuous_tiles_count; - if (translate_dir.Z != 0) - scale.Z = continuous_tiles_count; - - makeFastFace(tile, lights[0], lights[1], lights[2], lights[3], - pf, sp, face_dir_corrected, scale, dest); - - g_profiler->avg("Meshgen: faces drawn by tiling", 0); - for (int i = 1; i < continuous_tiles_count; i++) - g_profiler->avg("Meshgen: faces drawn by tiling", 1); - } - - continuous_tiles_count = 1; - } - - makes_face = next_makes_face; - p_corrected = next_p_corrected; - face_dir_corrected = next_face_dir_corrected; - std::memcpy(lights, next_lights, ARRLEN(lights) * sizeof(u16)); - if (next_is_different) - tile = next_tile; - p = p_next; - } -} - -static void updateAllFastFaceRows(MeshMakeData *data, - std::vector<FastFace> &dest) -{ - /* - Go through every y,z and get top(y+) faces in rows of x+ - */ - for (s16 y = 0; y < MAP_BLOCKSIZE; y++) - for (s16 z = 0; z < MAP_BLOCKSIZE; z++) - updateFastFaceRow(data, - v3s16(0, y, z), - v3s16(1, 0, 0), //dir - v3f (1, 0, 0), - v3s16(0, 1, 0), //face dir - dest); - - /* - Go through every x,y and get right(x+) faces in rows of z+ - */ - for (s16 x = 0; x < MAP_BLOCKSIZE; x++) - for (s16 y = 0; y < MAP_BLOCKSIZE; y++) - updateFastFaceRow(data, - v3s16(x, y, 0), - v3s16(0, 0, 1), //dir - v3f (0, 0, 1), - v3s16(1, 0, 0), //face dir - dest); - - /* - Go through every y,z and get back(z+) faces in rows of x+ - */ - for (s16 z = 0; z < MAP_BLOCKSIZE; z++) - for (s16 y = 0; y < MAP_BLOCKSIZE; y++) - updateFastFaceRow(data, - v3s16(0, y, z), - v3s16(1, 0, 0), //dir - v3f (1, 0, 0), - v3s16(0, 0, 1), //face dir - dest); -} - -static void applyTileColor(PreMeshBuffer &pmb) -{ - video::SColor tc = pmb.layer.color; - if (tc == video::SColor(0xFFFFFFFF)) - return; - for (video::S3DVertex &vertex : pmb.vertices) { - video::SColor *c = &vertex.Color; - c->set(c->getAlpha(), - c->getRed() * tc.getRed() / 255, - c->getGreen() * tc.getGreen() / 255, - c->getBlue() * tc.getBlue() / 255); - } -} - -/* - MapBlockMesh -*/ - -MapBlockMesh::MapBlockMesh(MeshMakeData *data, v3s16 camera_offset): - m_minimap_mapblock(NULL), - m_tsrc(data->m_client->getTextureSource()), - m_shdrsrc(data->m_client->getShaderSource()), - m_animation_force_timer(0), // force initial animation - m_last_crack(-1), - m_last_daynight_ratio((u32) -1) -{ - for (auto &m : m_mesh) - m = new scene::SMesh(); - m_enable_shaders = data->m_use_shaders; - m_use_tangent_vertices = data->m_use_tangent_vertices; - m_enable_vbo = g_settings->getBool("enable_vbo"); - - if (g_settings->getBool("enable_minimap")) { - m_minimap_mapblock = new MinimapMapblock; - m_minimap_mapblock->getMinimapNodes( - &data->m_vmanip, data->m_blockpos * MAP_BLOCKSIZE); - } - - // 4-21ms for MAP_BLOCKSIZE=16 (NOTE: probably outdated) - // 24-155ms for MAP_BLOCKSIZE=32 (NOTE: probably outdated) - //TimeTaker timer1("MapBlockMesh()"); - - std::vector<FastFace> fastfaces_new; - fastfaces_new.reserve(512); - - /* - We are including the faces of the trailing edges of the block. - This means that when something changes, the caller must - also update the meshes of the blocks at the leading edges. - - NOTE: This is the slowest part of this method. - */ - { - // 4-23ms for MAP_BLOCKSIZE=16 (NOTE: probably outdated) - //TimeTaker timer2("updateAllFastFaceRows()"); - updateAllFastFaceRows(data, fastfaces_new); - } - // End of slow part - - /* - Convert FastFaces to MeshCollector - */ - - MeshCollector collector; - - { - // avg 0ms (100ms spikes when loading textures the first time) - // (NOTE: probably outdated) - //TimeTaker timer2("MeshCollector building"); - - for (const FastFace &f : fastfaces_new) { - static const u16 indices[] = {0, 1, 2, 2, 3, 0}; - static const u16 indices_alternate[] = {0, 1, 3, 2, 3, 1}; - const u16 *indices_p = - f.vertex_0_2_connected ? indices : indices_alternate; - collector.append(f.tile, f.vertices, 4, indices_p, 6); - } - } - - /* - Add special graphics: - - torches - - flowing water - - fences - - whatever - */ - - { - MapblockMeshGenerator generator(data, &collector); - generator.generate(); - } - - /* - Convert MeshCollector to SMesh - */ - - for (int layer = 0; layer < MAX_TILE_LAYERS; layer++) { - for(u32 i = 0; i < collector.prebuffers[layer].size(); i++) - { - PreMeshBuffer &p = collector.prebuffers[layer][i]; - - applyTileColor(p); - - // Generate animation data - // - Cracks - if (p.layer.material_flags & MATERIAL_FLAG_CRACK) { - // Find the texture name plus ^[crack:N: - std::ostringstream os(std::ios::binary); - os << m_tsrc->getTextureName(p.layer.texture_id) << "^[crack"; - if (p.layer.material_flags & MATERIAL_FLAG_CRACK_OVERLAY) - os << "o"; // use ^[cracko - u8 tiles = p.layer.scale; - if (tiles > 1) - os << ":" << (u32)tiles; - os << ":" << (u32)p.layer.animation_frame_count << ":"; - m_crack_materials.insert(std::make_pair( - std::pair<u8, u32>(layer, i), os.str())); - // Replace tile texture with the cracked one - p.layer.texture = m_tsrc->getTextureForMesh( - os.str() + "0", - &p.layer.texture_id); - } - // - Texture animation - if (p.layer.material_flags & MATERIAL_FLAG_ANIMATION) { - // Add to MapBlockMesh in order to animate these tiles - m_animation_tiles[std::pair<u8, u32>(layer, i)] = p.layer; - m_animation_frames[std::pair<u8, u32>(layer, i)] = 0; - if (g_settings->getBool( - "desynchronize_mapblock_texture_animation")) { - // Get starting position from noise - m_animation_frame_offsets[std::pair<u8, u32>(layer, i)] = - 100000 * (2.0 + noise3d( - data->m_blockpos.X, data->m_blockpos.Y, - data->m_blockpos.Z, 0)); - } else { - // Play all synchronized - m_animation_frame_offsets[std::pair<u8, u32>(layer, i)] = 0; - } - // Replace tile texture with the first animation frame - p.layer.texture = (*p.layer.frames)[0].texture; - } - - if (!m_enable_shaders) { - // Extract colors for day-night animation - // Dummy sunlight to handle non-sunlit areas - video::SColorf sunlight; - get_sunlight_color(&sunlight, 0); - u32 vertex_count = p.vertices.size(); - for (u32 j = 0; j < vertex_count; j++) { - video::SColor *vc = &p.vertices[j].Color; - video::SColor copy = *vc; - if (vc->getAlpha() == 0) // No sunlight - no need to animate - final_color_blend(vc, copy, sunlight); // Finalize color - else // Record color to animate - m_daynight_diffs[std::pair<u8, u32>(layer, i)][j] = copy; - - // The sunlight ratio has been stored, - // delete alpha (for the final rendering). - vc->setAlpha(255); - } - } - - // Create material - video::SMaterial material; - material.setFlag(video::EMF_LIGHTING, false); - material.setFlag(video::EMF_BACK_FACE_CULLING, true); - material.setFlag(video::EMF_BILINEAR_FILTER, false); - material.setFlag(video::EMF_FOG_ENABLE, true); - material.setTexture(0, p.layer.texture); - - if (m_enable_shaders) { - material.MaterialType = m_shdrsrc->getShaderInfo( - p.layer.shader_id).material; - p.layer.applyMaterialOptionsWithShaders(material); - if (p.layer.normal_texture) - material.setTexture(1, p.layer.normal_texture); - material.setTexture(2, p.layer.flags_texture); - } else { - p.layer.applyMaterialOptions(material); - } - - scene::SMesh *mesh = (scene::SMesh *)m_mesh[layer]; - - // Create meshbuffer, add to mesh - if (m_use_tangent_vertices) { - scene::SMeshBufferTangents *buf = - new scene::SMeshBufferTangents(); - buf->Material = material; - buf->Vertices.reallocate(p.vertices.size()); - buf->Indices.reallocate(p.indices.size()); - for (const video::S3DVertex &v: p.vertices) - buf->Vertices.push_back(video::S3DVertexTangents(v.Pos, v.Color, v.TCoords)); - for (u16 i: p.indices) - buf->Indices.push_back(i); - buf->recalculateBoundingBox(); - mesh->addMeshBuffer(buf); - buf->drop(); - } else { - scene::SMeshBuffer *buf = new scene::SMeshBuffer(); - buf->Material = material; - buf->append(&p.vertices[0], p.vertices.size(), - &p.indices[0], p.indices.size()); - mesh->addMeshBuffer(buf); - buf->drop(); - } - } - - /* - Do some stuff to the mesh - */ - m_camera_offset = camera_offset; - translateMesh(m_mesh[layer], - intToFloat(data->m_blockpos * MAP_BLOCKSIZE - camera_offset, BS)); - - if (m_use_tangent_vertices) { - scene::IMeshManipulator* meshmanip = - RenderingEngine::get_scene_manager()->getMeshManipulator(); - meshmanip->recalculateTangents(m_mesh[layer], true, false, false); - } - - if (m_mesh[layer]) { -#if 0 - // Usually 1-700 faces and 1-7 materials - std::cout << "Updated MapBlock has " << fastfaces_new.size() - << " faces and uses " << m_mesh[layer]->getMeshBufferCount() - << " materials (meshbuffers)" << std::endl; -#endif - - // Use VBO for mesh (this just would set this for ever buffer) - if (m_enable_vbo) - m_mesh[layer]->setHardwareMappingHint(scene::EHM_STATIC); - } - } - - //std::cout<<"added "<<fastfaces.getSize()<<" faces."<<std::endl; - - // Check if animation is required for this mesh - m_has_animation = - !m_crack_materials.empty() || - !m_daynight_diffs.empty() || - !m_animation_tiles.empty(); -} - -MapBlockMesh::~MapBlockMesh() -{ - for (scene::IMesh *m : m_mesh) { - if (m_enable_vbo && m) - for (u32 i = 0; i < m->getMeshBufferCount(); i++) { - scene::IMeshBuffer *buf = m->getMeshBuffer(i); - RenderingEngine::get_video_driver()->removeHardwareBuffer(buf); - } - m->drop(); - m = NULL; - } - delete m_minimap_mapblock; -} - -bool MapBlockMesh::animate(bool faraway, float time, int crack, - u32 daynight_ratio) -{ - if (!m_has_animation) { - m_animation_force_timer = 100000; - return false; - } - - m_animation_force_timer = myrand_range(5, 100); - - // Cracks - if (crack != m_last_crack) { - for (auto &crack_material : m_crack_materials) { - scene::IMeshBuffer *buf = m_mesh[crack_material.first.first]-> - getMeshBuffer(crack_material.first.second); - std::string basename = crack_material.second; - - // Create new texture name from original - std::ostringstream os; - os << basename << crack; - u32 new_texture_id = 0; - video::ITexture *new_texture = - m_tsrc->getTextureForMesh(os.str(), &new_texture_id); - buf->getMaterial().setTexture(0, new_texture); - - // If the current material is also animated, - // update animation info - auto anim_iter = m_animation_tiles.find(crack_material.first); - if (anim_iter != m_animation_tiles.end()) { - TileLayer &tile = anim_iter->second; - tile.texture = new_texture; - tile.texture_id = new_texture_id; - // force animation update - m_animation_frames[crack_material.first] = -1; - } - } - - m_last_crack = crack; - } - - // Texture animation - for (auto &animation_tile : m_animation_tiles) { - const TileLayer &tile = animation_tile.second; - // Figure out current frame - int frameoffset = m_animation_frame_offsets[animation_tile.first]; - int frame = (int)(time * 1000 / tile.animation_frame_length_ms - + frameoffset) % tile.animation_frame_count; - // If frame doesn't change, skip - if (frame == m_animation_frames[animation_tile.first]) - continue; - - m_animation_frames[animation_tile.first] = frame; - - scene::IMeshBuffer *buf = m_mesh[animation_tile.first.first]-> - getMeshBuffer(animation_tile.first.second); - - const FrameSpec &animation_frame = (*tile.frames)[frame]; - buf->getMaterial().setTexture(0, animation_frame.texture); - if (m_enable_shaders) { - if (animation_frame.normal_texture) - buf->getMaterial().setTexture(1, - animation_frame.normal_texture); - buf->getMaterial().setTexture(2, animation_frame.flags_texture); - } - } - - // Day-night transition - if (!m_enable_shaders && (daynight_ratio != m_last_daynight_ratio)) { - // Force reload mesh to VBO - if (m_enable_vbo) - for (scene::IMesh *m : m_mesh) - m->setDirty(); - video::SColorf day_color; - get_sunlight_color(&day_color, daynight_ratio); - - for (auto &daynight_diff : m_daynight_diffs) { - scene::IMeshBuffer *buf = m_mesh[daynight_diff.first.first]-> - getMeshBuffer(daynight_diff.first.second); - video::S3DVertex *vertices = (video::S3DVertex *)buf->getVertices(); - for (const auto &j : daynight_diff.second) - final_color_blend(&(vertices[j.first].Color), j.second, - day_color); - } - m_last_daynight_ratio = daynight_ratio; - } - - return true; -} - -void MapBlockMesh::updateCameraOffset(v3s16 camera_offset) -{ - if (camera_offset != m_camera_offset) { - for (scene::IMesh *layer : m_mesh) { - translateMesh(layer, - intToFloat(m_camera_offset - camera_offset, BS)); - if (m_enable_vbo) - layer->setDirty(); - } - m_camera_offset = camera_offset; - } -} - -video::SColor encode_light(u16 light, u8 emissive_light) -{ - // Get components - u32 day = (light & 0xff); - u32 night = (light >> 8); - // Add emissive light - night += emissive_light * 2.5f; - if (night > 255) - night = 255; - // Since we don't know if the day light is sunlight or - // artificial light, assume it is artificial when the night - // light bank is also lit. - if (day < night) - day = 0; - else - day = day - night; - u32 sum = day + night; - // Ratio of sunlight: - u32 r; - if (sum > 0) - r = day * 255 / sum; - else - r = 0; - // Average light: - float b = (day + night) / 2; - return video::SColor(r, b, b, b); -} |