3 Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 #include "constants.h"
24 #include "main.h" // For g_profiler and g_settings
29 scene::ISceneNode* parent,
30 scene::ISceneManager* mgr,
35 scene::ISceneNode(parent, mgr, id),
41 dstream<<__FUNCTION_NAME<<std::endl;
43 m_material.setFlag(video::EMF_LIGHTING, false);
44 m_material.setFlag(video::EMF_BACK_FACE_CULLING, false);
45 m_material.setFlag(video::EMF_BILINEAR_FILTER, false);
46 m_material.setFlag(video::EMF_FOG_ENABLE, false);
47 //m_material.setFlag(video::EMF_ANTI_ALIASING, true);
48 //m_material.MaterialType = video::EMT_TRANSPARENT_VERTEX_ALPHA;
50 m_box = core::aabbox3d<f32>(-BS*1000000,cloud_y-BS,-BS*1000000,
51 BS*1000000,cloud_y+BS,BS*1000000);
57 dstream<<__FUNCTION_NAME<<std::endl;
60 void Clouds::OnRegisterSceneNode()
64 //SceneManager->registerNodeForRendering(this, scene::ESNRP_TRANSPARENT);
65 SceneManager->registerNodeForRendering(this, scene::ESNRP_SOLID);
68 ISceneNode::OnRegisterSceneNode();
71 #define MYROUND(x) (x > 0.0 ? (int)x : (int)x - 1)
75 video::IVideoDriver* driver = SceneManager->getVideoDriver();
77 /*if(SceneManager->getSceneNodeRenderPass() != scene::ESNRP_TRANSPARENT)
79 if(SceneManager->getSceneNodeRenderPass() != scene::ESNRP_SOLID)
82 ScopeProfiler sp(g_profiler, "Rendering of clouds, avg", SPT_AVG);
84 int num_faces_to_draw = 1;
85 if(g_settings->getBool("enable_3d_clouds"))
86 num_faces_to_draw = 6;
88 driver->setTransform(video::ETS_WORLD, AbsoluteTransformation);
89 driver->setMaterial(m_material);
92 Clouds move from X+ towards X-
95 const s16 cloud_radius_i = 12;
96 const float cloud_size = BS*48;
97 const v2f cloud_speed(-BS*2, 0);
99 // Position of cloud noise origin in world coordinates
100 v2f world_cloud_origin_pos_f = m_time*cloud_speed;
101 // Position of cloud noise origin from the camera
102 v2f cloud_origin_from_camera_f = world_cloud_origin_pos_f - m_camera_pos;
103 // The center point of drawing in the noise
104 v2f center_of_drawing_in_noise_f = -cloud_origin_from_camera_f;
105 // The integer center point of drawing in the noise
106 v2s16 center_of_drawing_in_noise_i(
107 MYROUND(center_of_drawing_in_noise_f.X / cloud_size),
108 MYROUND(center_of_drawing_in_noise_f.Y / cloud_size)
110 // The world position of the integer center point of drawing in the noise
111 v2f world_center_of_drawing_in_noise_f = v2f(
112 center_of_drawing_in_noise_i.X * cloud_size,
113 center_of_drawing_in_noise_i.Y * cloud_size
114 ) + world_cloud_origin_pos_f;
116 for(s16 zi=-cloud_radius_i; zi<cloud_radius_i; zi++)
117 for(s16 xi=-cloud_radius_i; xi<cloud_radius_i; xi++)
120 xi+center_of_drawing_in_noise_i.X,
121 zi+center_of_drawing_in_noise_i.Y
124 /*if((p_in_noise_i.X + p_in_noise_i.Y)%2==0)
126 /*if((p_in_noise_i.X/2 + p_in_noise_i.Y/2)%2==0)
129 v2f p0 = v2f(xi,zi)*cloud_size + world_center_of_drawing_in_noise_f;
131 double noise = noise2d_perlin_abs(
132 (float)p_in_noise_i.X*cloud_size/BS/200,
133 (float)p_in_noise_i.Y*cloud_size/BS/200,
138 float b = m_brightness;
139 video::SColor c_top(128,b*240,b*240,b*255);
140 video::SColor c_side_1(128,b*230,b*230,b*255);
141 video::SColor c_side_2(128,b*220,b*220,b*245);
142 video::SColor c_bottom(128,b*205,b*205,b*230);
144 video::S3DVertex v[4] =
146 video::S3DVertex(0,0,0, 0,0,0, c_top, 0, 1),
147 video::S3DVertex(0,0,0, 0,0,0, c_top, 1, 1),
148 video::S3DVertex(0,0,0, 0,0,0, c_top, 1, 0),
149 video::S3DVertex(0,0,0, 0,0,0, c_top, 0, 0)
156 for(int i=0; i<num_faces_to_draw; i++)
161 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
162 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
163 v[2].Pos.X= rx; v[2].Pos.Y= ry; v[2].Pos.Z= rz;
164 v[3].Pos.X= rx; v[3].Pos.Y= ry, v[3].Pos.Z=-rz;
169 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
170 v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
171 v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
172 v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
177 v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
178 v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
179 v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
180 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
185 v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
186 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
187 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
188 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
193 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
194 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
195 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
196 v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
201 v[0].Pos.X= rx; v[0].Pos.Y=-ry; v[0].Pos.Z= rz;
202 v[1].Pos.X=-rx; v[1].Pos.Y=-ry; v[1].Pos.Z= rz;
203 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
204 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
208 v3f pos = v3f(p0.X,m_cloud_y,p0.Y);
210 for(u16 i=0; i<4; i++)
212 u16 indices[] = {0,1,2,2,3,0};
213 driver->drawVertexPrimitiveList(v, 4, indices, 2,
214 video::EVT_STANDARD, scene::EPT_TRIANGLES, video::EIT_16BIT);
220 void Clouds::step(float dtime)
225 void Clouds::update(v2f camera_p, float brightness)
227 m_camera_pos = camera_p;
228 m_brightness = brightness;