X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;ds=sidebyside;f=src%2Fclouds.cpp;h=13051f32ce16d5c03344312e69ab05c4dbabbab5;hb=ddd9317b733857630499972179caebc236b4d991;hp=0225504146d9e88b1b739a6b22b2bd3e4affc0df;hpb=890d3468e757421629b31dca9198677bdd974f50;p=dragonfireclient.git diff --git a/src/clouds.cpp b/src/clouds.cpp index 022550414..13051f32c 100644 --- a/src/clouds.cpp +++ b/src/clouds.cpp @@ -1,208 +1,386 @@ /* -Minetest-c55 -Copyright (C) 2010-2011 celeron55, Perttu Ahola +Minetest +Copyright (C) 2010-2013 celeron55, Perttu Ahola This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or +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 General Public License for more details. +GNU Lesser General Public License for more details. -You should have received a copy of the GNU General Public License along +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 "client/renderingengine.h" #include "clouds.h" #include "noise.h" #include "constants.h" #include "debug.h" +#include "profiler.h" +#include "settings.h" +#include -Clouds::Clouds( - scene::ISceneNode* parent, - scene::ISceneManager* mgr, + +// Menu clouds are created later +class Clouds; +Clouds *g_menuclouds = NULL; +irr::scene::ISceneManager *g_menucloudsmgr = NULL; + +// Constant for now +static constexpr const float cloud_size = BS * 64.0f; + +static void cloud_3d_setting_changed(const std::string &settingname, void *data) +{ + ((Clouds *)data)->readSettings(); +} + +Clouds::Clouds(scene::ISceneManager* mgr, s32 id, - float cloud_y, u32 seed ): - scene::ISceneNode(parent, mgr, id), - m_cloud_y(cloud_y), - m_seed(seed), - m_camera_pos(0,0), - m_time(0) + scene::ISceneNode(mgr->getRootSceneNode(), mgr, id), + m_seed(seed) { - dstream<<__FUNCTION_NAME<(-BS*1000000,cloud_y-BS,-BS*1000000, - BS*1000000,cloud_y+BS,BS*1000000); + readSettings(); + g_settings->registerChangedCallback("enable_3d_clouds", + &cloud_3d_setting_changed, this); + updateBox(); } Clouds::~Clouds() { - dstream<<__FUNCTION_NAME<deregisterChangedCallback("enable_3d_clouds", + &cloud_3d_setting_changed, this); } void Clouds::OnRegisterSceneNode() { if(IsVisible) { - //SceneManager->registerNodeForRendering(this, scene::ESNRP_TRANSPARENT); - SceneManager->registerNodeForRendering(this, scene::ESNRP_SOLID); + SceneManager->registerNodeForRendering(this, scene::ESNRP_TRANSPARENT); + //SceneManager->registerNodeForRendering(this, scene::ESNRP_SOLID); } ISceneNode::OnRegisterSceneNode(); } -#define MYROUND(x) (x > 0.0 ? (int)x : (int)x - 1) - void Clouds::render() { + + if (m_params.density <= 0.0f) + return; // no need to do anything + video::IVideoDriver* driver = SceneManager->getVideoDriver(); - /*if(SceneManager->getSceneNodeRenderPass() != scene::ESNRP_TRANSPARENT) - return;*/ - if(SceneManager->getSceneNodeRenderPass() != scene::ESNRP_SOLID) + if(SceneManager->getSceneNodeRenderPass() != scene::ESNRP_TRANSPARENT) + //if(SceneManager->getSceneNodeRenderPass() != scene::ESNRP_SOLID) return; + ScopeProfiler sp(g_profiler, "Rendering of clouds, avg", SPT_AVG); + + int num_faces_to_draw = m_enable_3d ? 6 : 1; + + m_material.setFlag(video::EMF_BACK_FACE_CULLING, m_enable_3d); + driver->setTransform(video::ETS_WORLD, AbsoluteTransformation); driver->setMaterial(m_material); - + /* - Clouds move from X+ towards X- + Clouds move from Z+ towards Z- */ - const s16 cloud_radius_i = 12; - const float cloud_size = BS*50; - const v2f cloud_speed(-BS*2, 0); - - // Position of cloud noise origin in world coordinates - v2f world_cloud_origin_pos_f = m_time*cloud_speed; + const float cloud_full_radius = cloud_size * m_cloud_radius_i; + + v2f camera_pos_2d(m_camera_pos.X, m_camera_pos.Z); // Position of cloud noise origin from the camera - v2f cloud_origin_from_camera_f = world_cloud_origin_pos_f - m_camera_pos; + v2f cloud_origin_from_camera_f = m_origin - camera_pos_2d; // The center point of drawing in the noise v2f center_of_drawing_in_noise_f = -cloud_origin_from_camera_f; // The integer center point of drawing in the noise v2s16 center_of_drawing_in_noise_i( - MYROUND(center_of_drawing_in_noise_f.X / cloud_size), - MYROUND(center_of_drawing_in_noise_f.Y / cloud_size) + std::floor(center_of_drawing_in_noise_f.X / cloud_size), + std::floor(center_of_drawing_in_noise_f.Y / cloud_size) ); + // The world position of the integer center point of drawing in the noise v2f world_center_of_drawing_in_noise_f = v2f( center_of_drawing_in_noise_i.X * cloud_size, center_of_drawing_in_noise_i.Y * cloud_size - ) + world_cloud_origin_pos_f; + ) + m_origin; + + /*video::SColor c_top(128,b*240,b*240,b*255); + video::SColor c_side_1(128,b*230,b*230,b*255); + video::SColor c_side_2(128,b*220,b*220,b*245); + video::SColor c_bottom(128,b*205,b*205,b*230);*/ + video::SColorf c_top_f(m_color); + video::SColorf c_side_1_f(m_color); + video::SColorf c_side_2_f(m_color); + video::SColorf c_bottom_f(m_color); + c_side_1_f.r *= 0.95; + c_side_1_f.g *= 0.95; + c_side_1_f.b *= 0.95; + c_side_2_f.r *= 0.90; + c_side_2_f.g *= 0.90; + c_side_2_f.b *= 0.90; + c_bottom_f.r *= 0.80; + c_bottom_f.g *= 0.80; + c_bottom_f.b *= 0.80; + video::SColor c_top = c_top_f.toSColor(); + video::SColor c_side_1 = c_side_1_f.toSColor(); + video::SColor c_side_2 = c_side_2_f.toSColor(); + video::SColor c_bottom = c_bottom_f.toSColor(); + + // Get fog parameters for setting them back later + video::SColor fog_color(0,0,0,0); + video::E_FOG_TYPE fog_type = video::EFT_FOG_LINEAR; + f32 fog_start = 0; + f32 fog_end = 0; + f32 fog_density = 0; + bool fog_pixelfog = false; + bool fog_rangefog = false; + driver->getFog(fog_color, fog_type, fog_start, fog_end, fog_density, + fog_pixelfog, fog_rangefog); + + // Set our own fog + driver->setFog(fog_color, fog_type, cloud_full_radius * 0.5, + cloud_full_radius*1.2, fog_density, fog_pixelfog, fog_rangefog); + + // Read noise + + bool *grid = new bool[m_cloud_radius_i * 2 * m_cloud_radius_i * 2]; - for(s16 zi=-cloud_radius_i; zi= -(radius) && (x) < (radius) && (z) >= -(radius) && (z) < (radius)) + + for (s16 zi0= -m_cloud_radius_i; zi0 < m_cloud_radius_i; zi0++) + for (s16 xi0= -m_cloud_radius_i; xi0 < m_cloud_radius_i; xi0++) { - v2s16 p_in_noise_i( - xi+center_of_drawing_in_noise_i.X, - zi+center_of_drawing_in_noise_i.Y - ); + s16 zi = zi0; + s16 xi = xi0; + // Draw from front to back (needed for transparency) + /*if(zi <= 0) + zi = -m_cloud_radius_i - zi; + if(xi <= 0) + xi = -m_cloud_radius_i - xi;*/ + // Draw from back to front + if(zi >= 0) + zi = m_cloud_radius_i - zi - 1; + if(xi >= 0) + xi = m_cloud_radius_i - xi - 1; - /*if((p_in_noise_i.X + p_in_noise_i.Y)%2==0) - continue;*/ - /*if((p_in_noise_i.X/2 + p_in_noise_i.Y/2)%2==0) - continue;*/ + u32 i = GETINDEX(xi, zi, m_cloud_radius_i); - v2f p0 = v2f(xi,zi)*cloud_size + world_center_of_drawing_in_noise_f; - - double noise = noise2d_perlin_abs( - (float)p_in_noise_i.X*cloud_size/BS/200, - (float)p_in_noise_i.Y*cloud_size/BS/200, - m_seed, 3, 0.4); - if(noise < 0.8) + if (!grid[i]) continue; - float b = m_brightness; - video::SColor c(128,b*230,b*230,b*255); + v2f p0 = v2f(xi,zi)*cloud_size + world_center_of_drawing_in_noise_f; - video::S3DVertex v[4] = - { - video::S3DVertex(0,0,0, 0,0,0, c, 0, 1), - video::S3DVertex(0,0,0, 0,0,0, c, 1, 1), - video::S3DVertex(0,0,0, 0,0,0, c, 1, 0), - video::S3DVertex(0,0,0, 0,0,0, c, 0, 0) + video::S3DVertex v[4] = { + video::S3DVertex(0,0,0, 0,0,0, c_top, 0, 1), + video::S3DVertex(0,0,0, 0,0,0, c_top, 1, 1), + video::S3DVertex(0,0,0, 0,0,0, c_top, 1, 0), + video::S3DVertex(0,0,0, 0,0,0, c_top, 0, 0) }; - f32 rx = cloud_size; - f32 ry = 16*BS; - f32 rz = cloud_size; + /*if(zi <= 0 && xi <= 0){ + v[0].Color.setBlue(255); + v[1].Color.setBlue(255); + v[2].Color.setBlue(255); + v[3].Color.setBlue(255); + }*/ + + f32 rx = cloud_size / 2.0f; + // if clouds are flat, the top layer should be at the given height + f32 ry = m_enable_3d ? m_params.thickness * BS : 0.0f; + f32 rz = cloud_size / 2; - for(int i=0;i<6;i++) + for(int i=0; idrawVertexPrimitiveList(v, 4, indices, 2, video::EVT_STANDARD, scene::EPT_TRIANGLES, video::EIT_16BIT); } - } + + delete[] grid; + + // Restore fog settings + driver->setFog(fog_color, fog_type, fog_start, fog_end, fog_density, + fog_pixelfog, fog_rangefog); } void Clouds::step(float dtime) { - m_time += dtime; + m_origin = m_origin + dtime * BS * m_params.speed; } -void Clouds::update(v2f camera_p, float brightness) +void Clouds::update(const v3f &camera_p, const video::SColorf &color_diffuse) { m_camera_pos = camera_p; - m_brightness = brightness; + m_color.r = MYMIN(MYMAX(color_diffuse.r * m_params.color_bright.getRed(), + m_params.color_ambient.getRed()), 255) / 255.0f; + m_color.g = MYMIN(MYMAX(color_diffuse.g * m_params.color_bright.getGreen(), + m_params.color_ambient.getGreen()), 255) / 255.0f; + m_color.b = MYMIN(MYMAX(color_diffuse.b * m_params.color_bright.getBlue(), + m_params.color_ambient.getBlue()), 255) / 255.0f; + m_color.a = m_params.color_bright.getAlpha() / 255.0f; + + // is the camera inside the cloud mesh? + m_camera_inside_cloud = false; // default + if (m_enable_3d) { + float camera_height = camera_p.Y; + if (camera_height >= m_box.MinEdge.Y && + camera_height <= m_box.MaxEdge.Y) { + v2f camera_in_noise; + camera_in_noise.X = floor((camera_p.X - m_origin.X) / cloud_size + 0.5); + camera_in_noise.Y = floor((camera_p.Z - m_origin.Y) / cloud_size + 0.5); + bool filled = gridFilled(camera_in_noise.X, camera_in_noise.Y); + m_camera_inside_cloud = filled; + } + } } +void Clouds::readSettings() +{ + m_cloud_radius_i = g_settings->getU16("cloud_radius"); + m_enable_3d = g_settings->getBool("enable_3d_clouds"); +} + +bool Clouds::gridFilled(int x, int y) const +{ + float cloud_size_noise = cloud_size / (BS * 200.f); + float noise = noise2d_perlin( + (float)x * cloud_size_noise, + (float)y * cloud_size_noise, + m_seed, 3, 0.5); + // normalize to 0..1 (given 3 octaves) + static constexpr const float noise_bound = 1.0f + 0.5f + 0.25f; + float density = noise / noise_bound * 0.5f + 0.5f; + return (density < m_params.density); +}