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 m_material.setFlag(video::EMF_LIGHTING, false);
42 m_material.setFlag(video::EMF_BACK_FACE_CULLING, false);
43 m_material.setFlag(video::EMF_BILINEAR_FILTER, false);
44 m_material.setFlag(video::EMF_FOG_ENABLE, false);
45 //m_material.setFlag(video::EMF_ANTI_ALIASING, true);
46 //m_material.MaterialType = video::EMT_TRANSPARENT_VERTEX_ALPHA;
48 m_box = core::aabbox3d<f32>(-BS*1000000,cloud_y-BS,-BS*1000000,
49 BS*1000000,cloud_y+BS,BS*1000000);
57 void Clouds::OnRegisterSceneNode()
61 //SceneManager->registerNodeForRendering(this, scene::ESNRP_TRANSPARENT);
62 SceneManager->registerNodeForRendering(this, scene::ESNRP_SOLID);
65 ISceneNode::OnRegisterSceneNode();
68 #define MYROUND(x) (x > 0.0 ? (int)x : (int)x - 1)
72 video::IVideoDriver* driver = SceneManager->getVideoDriver();
74 /*if(SceneManager->getSceneNodeRenderPass() != scene::ESNRP_TRANSPARENT)
76 if(SceneManager->getSceneNodeRenderPass() != scene::ESNRP_SOLID)
79 ScopeProfiler sp(g_profiler, "Rendering of clouds, avg", SPT_AVG);
81 int num_faces_to_draw = 1;
82 if(g_settings->getBool("enable_3d_clouds"))
83 num_faces_to_draw = 6;
85 driver->setTransform(video::ETS_WORLD, AbsoluteTransformation);
86 driver->setMaterial(m_material);
89 Clouds move from X+ towards X-
92 const s16 cloud_radius_i = 12;
93 const float cloud_size = BS*48;
94 const v2f cloud_speed(-BS*2, 0);
96 // Position of cloud noise origin in world coordinates
97 v2f world_cloud_origin_pos_f = m_time*cloud_speed;
98 // Position of cloud noise origin from the camera
99 v2f cloud_origin_from_camera_f = world_cloud_origin_pos_f - m_camera_pos;
100 // The center point of drawing in the noise
101 v2f center_of_drawing_in_noise_f = -cloud_origin_from_camera_f;
102 // The integer center point of drawing in the noise
103 v2s16 center_of_drawing_in_noise_i(
104 MYROUND(center_of_drawing_in_noise_f.X / cloud_size),
105 MYROUND(center_of_drawing_in_noise_f.Y / cloud_size)
107 // The world position of the integer center point of drawing in the noise
108 v2f world_center_of_drawing_in_noise_f = v2f(
109 center_of_drawing_in_noise_i.X * cloud_size,
110 center_of_drawing_in_noise_i.Y * cloud_size
111 ) + world_cloud_origin_pos_f;
113 for(s16 zi=-cloud_radius_i; zi<cloud_radius_i; zi++)
114 for(s16 xi=-cloud_radius_i; xi<cloud_radius_i; xi++)
117 xi+center_of_drawing_in_noise_i.X,
118 zi+center_of_drawing_in_noise_i.Y
121 /*if((p_in_noise_i.X + p_in_noise_i.Y)%2==0)
123 /*if((p_in_noise_i.X/2 + p_in_noise_i.Y/2)%2==0)
126 v2f p0 = v2f(xi,zi)*cloud_size + world_center_of_drawing_in_noise_f;
128 double noise = noise2d_perlin_abs(
129 (float)p_in_noise_i.X*cloud_size/BS/200,
130 (float)p_in_noise_i.Y*cloud_size/BS/200,
135 float b = m_brightness;
136 video::SColor c_top(128,b*240,b*240,b*255);
137 video::SColor c_side_1(128,b*230,b*230,b*255);
138 video::SColor c_side_2(128,b*220,b*220,b*245);
139 video::SColor c_bottom(128,b*205,b*205,b*230);
141 video::S3DVertex v[4] =
143 video::S3DVertex(0,0,0, 0,0,0, c_top, 0, 1),
144 video::S3DVertex(0,0,0, 0,0,0, c_top, 1, 1),
145 video::S3DVertex(0,0,0, 0,0,0, c_top, 1, 0),
146 video::S3DVertex(0,0,0, 0,0,0, c_top, 0, 0)
153 for(int i=0; i<num_faces_to_draw; i++)
158 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
159 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
160 v[2].Pos.X= rx; v[2].Pos.Y= ry; v[2].Pos.Z= rz;
161 v[3].Pos.X= rx; v[3].Pos.Y= ry, v[3].Pos.Z=-rz;
166 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
167 v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
168 v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
169 v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
174 v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
175 v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
176 v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
177 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
182 v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
183 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
184 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
185 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
190 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
191 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
192 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
193 v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
198 v[0].Pos.X= rx; v[0].Pos.Y=-ry; v[0].Pos.Z= rz;
199 v[1].Pos.X=-rx; v[1].Pos.Y=-ry; v[1].Pos.Z= rz;
200 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
201 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
205 v3f pos = v3f(p0.X,m_cloud_y,p0.Y);
207 for(u16 i=0; i<4; i++)
209 u16 indices[] = {0,1,2,2,3,0};
210 driver->drawVertexPrimitiveList(v, 4, indices, 2,
211 video::EVT_STANDARD, scene::EPT_TRIANGLES, video::EIT_16BIT);
217 void Clouds::step(float dtime)
222 void Clouds::update(v2f camera_p, float brightness)
224 m_camera_pos = camera_p;
225 m_brightness = brightness;