/*
-Minetest-c55
-Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
+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 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 "noise.h"
#include "constants.h"
#include "debug.h"
+#include "main.h" // For g_profiler and g_settings
+#include "profiler.h"
+#include "settings.h"
Clouds::Clouds(
scene::ISceneNode* parent,
scene::ISceneManager* mgr,
s32 id,
- float cloud_y,
- u32 seed
+ u32 seed,
+ s16 cloudheight
):
scene::ISceneNode(parent, mgr, id),
- m_cloud_y(cloud_y),
m_seed(seed),
m_camera_pos(0,0),
- m_time(0)
+ m_time(0),
+ m_camera_offset(0,0,0)
{
- dstream<<__FUNCTION_NAME<<std::endl;
-
m_material.setFlag(video::EMF_LIGHTING, false);
- m_material.setFlag(video::EMF_BACK_FACE_CULLING, false);
+ //m_material.setFlag(video::EMF_BACK_FACE_CULLING, false);
+ m_material.setFlag(video::EMF_BACK_FACE_CULLING, true);
m_material.setFlag(video::EMF_BILINEAR_FILTER, false);
- m_material.setFlag(video::EMF_FOG_ENABLE, false);
- //m_material.setFlag(video::EMF_ANTI_ALIASING, true);
+ m_material.setFlag(video::EMF_FOG_ENABLE, true);
+ m_material.setFlag(video::EMF_ANTI_ALIASING, true);
//m_material.MaterialType = video::EMT_TRANSPARENT_VERTEX_ALPHA;
+ m_material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
+
+ m_cloud_y = BS * (cloudheight ? cloudheight :
+ g_settings->getS16("cloud_height"));
- m_box = core::aabbox3d<f32>(-BS*1000000,cloud_y-BS,-BS*1000000,
- BS*1000000,cloud_y+BS,BS*1000000);
+ m_box = core::aabbox3d<f32>(-BS*1000000,m_cloud_y-BS,-BS*1000000,
+ BS*1000000,m_cloud_y+BS,BS*1000000);
}
Clouds::~Clouds()
{
- dstream<<__FUNCTION_NAME<<std::endl;
}
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();
{
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);
+
+ bool enable_3d = g_settings->getBool("enable_3d_clouds");
+ int num_faces_to_draw = enable_3d ? 6 : 1;
+
+ m_material.setFlag(video::EMF_BACK_FACE_CULLING, enable_3d);
+
driver->setTransform(video::ETS_WORLD, AbsoluteTransformation);
driver->setMaterial(m_material);
*/
const s16 cloud_radius_i = 12;
- const float cloud_size = BS*50;
- const v2f cloud_speed(-BS*2, 0);
+ const float cloud_size = BS*64;
+ const v2f cloud_speed(0, -BS*2);
+
+ const float cloud_full_radius = cloud_size * cloud_radius_i;
// Position of cloud noise origin in world coordinates
v2f world_cloud_origin_pos_f = m_time*cloud_speed;
center_of_drawing_in_noise_i.Y * cloud_size
) + world_cloud_origin_pos_f;
+ /*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;
+ c_top_f.a = 0.9;
+ c_side_1_f.a = 0.9;
+ c_side_2_f.a = 0.9;
+ c_bottom_f.a = 0.9;
+ 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[cloud_radius_i*2*cloud_radius_i*2];
+
for(s16 zi=-cloud_radius_i; zi<cloud_radius_i; zi++)
for(s16 xi=-cloud_radius_i; xi<cloud_radius_i; xi++)
{
+ u32 i = (zi+cloud_radius_i)*cloud_radius_i*2 + xi+cloud_radius_i;
+
v2s16 p_in_noise_i(
xi+center_of_drawing_in_noise_i.X,
zi+center_of_drawing_in_noise_i.Y
);
- /*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;*/
-
- v2f p0 = v2f(xi,zi)*cloud_size + world_center_of_drawing_in_noise_f;
-
+#if 0
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)
+ grid[i] = (noise >= 0.80);
+#endif
+#if 1
+ double noise = noise2d_perlin(
+ (float)p_in_noise_i.X*cloud_size/BS/200,
+ (float)p_in_noise_i.Y*cloud_size/BS/200,
+ m_seed, 3, 0.5);
+ grid[i] = (noise >= 0.4);
+#endif
+ }
+
+#define GETINDEX(x, z, radius) (((z)+(radius))*(radius)*2 + (x)+(radius))
+#define CONTAINS(x, z, radius) \
+ ((x) >= -(radius) && (x) < (radius) && (z) >= -(radius) && (z) < (radius))
+
+ for(s16 zi0=-cloud_radius_i; zi0<cloud_radius_i; zi0++)
+ for(s16 xi0=-cloud_radius_i; xi0<cloud_radius_i; xi0++)
+ {
+ s16 zi = zi0;
+ s16 xi = xi0;
+ // Draw from front to back (needed for transparency)
+ /*if(zi <= 0)
+ zi = -cloud_radius_i - zi;
+ if(xi <= 0)
+ xi = -cloud_radius_i - xi;*/
+ // Draw from back to front
+ if(zi >= 0)
+ zi = cloud_radius_i - zi - 1;
+ if(xi >= 0)
+ xi = cloud_radius_i - xi - 1;
+
+ u32 i = GETINDEX(xi, zi, cloud_radius_i);
+
+ if(grid[i] == false)
continue;
-
- v2f p1 = p0 + v2f(1,1)*cloud_size;
- //video::SColor c(128,255,255,255);
- float b = m_brightness;
- video::SColor c(128,b*230,b*230,b*255);
- video::S3DVertex vertices[4] =
- {
- video::S3DVertex(p0.X,m_cloud_y,p0.Y, 0,0,0, c, 0,1),
- video::S3DVertex(p0.X,m_cloud_y,p1.Y, 0,0,0, c, 1,1),
- video::S3DVertex(p1.X,m_cloud_y,p1.Y, 0,0,0, c, 1,0),
- video::S3DVertex(p1.X,m_cloud_y,p0.Y, 0,0,0, c, 0,0),
+ 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_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)
};
- u16 indices[] = {0,1,2,2,3,0};
- driver->drawVertexPrimitiveList(vertices, 4, indices, 2,
- video::EVT_STANDARD, scene::EPT_TRIANGLES, video::EIT_16BIT);
+
+ /*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;
+ f32 ry = 8*BS;
+ f32 rz = cloud_size/2;
+
+ for(int i=0; i<num_faces_to_draw; i++)
+ {
+ switch(i)
+ {
+ case 0: // top
+ for(int j=0;j<4;j++){
+ v[j].Normal.set(0,1,0);
+ }
+ v[0].Pos.set(-rx, ry,-rz);
+ v[1].Pos.set(-rx, ry, rz);
+ v[2].Pos.set( rx, ry, rz);
+ v[3].Pos.set( rx, ry,-rz);
+ break;
+ case 1: // back
+ if(CONTAINS(xi, zi-1, cloud_radius_i)){
+ u32 j = GETINDEX(xi, zi-1, cloud_radius_i);
+ if(grid[j])
+ continue;
+ }
+ for(int j=0;j<4;j++){
+ v[j].Color = c_side_1;
+ v[j].Normal.set(0,0,-1);
+ }
+ v[0].Pos.set(-rx, ry,-rz);
+ v[1].Pos.set( rx, ry,-rz);
+ v[2].Pos.set( rx,-ry,-rz);
+ v[3].Pos.set(-rx,-ry,-rz);
+ break;
+ case 2: //right
+ if(CONTAINS(xi+1, zi, cloud_radius_i)){
+ u32 j = GETINDEX(xi+1, zi, cloud_radius_i);
+ if(grid[j])
+ continue;
+ }
+ for(int j=0;j<4;j++){
+ v[j].Color = c_side_2;
+ v[j].Normal.set(1,0,0);
+ }
+ v[0].Pos.set( rx, ry,-rz);
+ v[1].Pos.set( rx, ry, rz);
+ v[2].Pos.set( rx,-ry, rz);
+ v[3].Pos.set( rx,-ry,-rz);
+ break;
+ case 3: // front
+ if(CONTAINS(xi, zi+1, cloud_radius_i)){
+ u32 j = GETINDEX(xi, zi+1, cloud_radius_i);
+ if(grid[j])
+ continue;
+ }
+ for(int j=0;j<4;j++){
+ v[j].Color = c_side_1;
+ v[j].Normal.set(0,0,-1);
+ }
+ v[0].Pos.set( rx, ry, rz);
+ v[1].Pos.set(-rx, ry, rz);
+ v[2].Pos.set(-rx,-ry, rz);
+ v[3].Pos.set( rx,-ry, rz);
+ break;
+ case 4: // left
+ if(CONTAINS(xi-1, zi, cloud_radius_i)){
+ u32 j = GETINDEX(xi-1, zi, cloud_radius_i);
+ if(grid[j])
+ continue;
+ }
+ for(int j=0;j<4;j++){
+ v[j].Color = c_side_2;
+ v[j].Normal.set(-1,0,0);
+ }
+ v[0].Pos.set(-rx, ry, rz);
+ v[1].Pos.set(-rx, ry,-rz);
+ v[2].Pos.set(-rx,-ry,-rz);
+ v[3].Pos.set(-rx,-ry, rz);
+ break;
+ case 5: // bottom
+ for(int j=0;j<4;j++){
+ v[j].Color = c_bottom;
+ v[j].Normal.set(0,-1,0);
+ }
+ v[0].Pos.set( rx,-ry, rz);
+ v[1].Pos.set(-rx,-ry, rz);
+ v[2].Pos.set(-rx,-ry,-rz);
+ v[3].Pos.set( rx,-ry,-rz);
+ break;
+ }
+
+ v3f pos(p0.X, m_cloud_y, p0.Y);
+ pos -= intToFloat(m_camera_offset, BS);
+
+ for(u16 i=0; i<4; i++)
+ v[i].Pos += pos;
+ u16 indices[] = {0,1,2,2,3,0};
+ driver->drawVertexPrimitiveList(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;
}
-void Clouds::update(v2f camera_p, float brightness)
+void Clouds::update(v2f camera_p, video::SColorf color)
{
m_camera_pos = camera_p;
- m_brightness = brightness;
+ m_color = color;
+ //m_brightness = brightness;
+ //dstream<<"m_brightness="<<m_brightness<<std::endl;
}
projects / minetest.git / blobdiff