3 Copyright (C) 2010-2013 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 Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser 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.
21 #include "IVideoDriver.h"
22 #include "ISceneManager.h"
23 #include "ICameraSceneNode.h"
24 #include "S3DVertex.h"
25 #include "client/tile.h"
26 #include "noise.h" // easeCurve
28 #include "util/numeric.h"
30 #include "client/renderingengine.h"
32 #include "camera.h" // CameraModes
35 Sky::Sky(s32 id, ITextureSource *tsrc):
36 scene::ISceneNode(RenderingEngine::get_scene_manager()->getRootSceneNode(),
37 RenderingEngine::get_scene_manager(), id)
39 setAutomaticCulling(scene::EAC_OFF);
40 m_box.MaxEdge.set(0, 0, 0);
41 m_box.MinEdge.set(0, 0, 0);
47 mat.ZBuffer = video::ECFN_NEVER;
48 mat.ZWriteEnable = false;
50 mat.TextureLayer[0].TextureWrapU = video::ETC_CLAMP_TO_EDGE;
51 mat.TextureLayer[0].TextureWrapV = video::ETC_CLAMP_TO_EDGE;
52 mat.BackfaceCulling = false;
57 //m_materials[1].MaterialType = video::EMT_TRANSPARENT_VERTEX_ALPHA;
58 m_materials[1].MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
61 m_materials[2].setTexture(0, tsrc->getTextureForMesh("sunrisebg.png"));
62 m_materials[2].MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
63 //m_materials[2].MaterialType = video::EMT_TRANSPARENT_ADD_COLOR;
65 m_sun_texture = tsrc->isKnownSourceImage("sun.png") ?
66 tsrc->getTextureForMesh("sun.png") : NULL;
67 m_moon_texture = tsrc->isKnownSourceImage("moon.png") ?
68 tsrc->getTextureForMesh("moon.png") : NULL;
69 m_sun_tonemap = tsrc->isKnownSourceImage("sun_tonemap.png") ?
70 tsrc->getTexture("sun_tonemap.png") : NULL;
71 m_moon_tonemap = tsrc->isKnownSourceImage("moon_tonemap.png") ?
72 tsrc->getTexture("moon_tonemap.png") : NULL;
76 m_materials[3].setTexture(0, m_sun_texture);
77 m_materials[3].MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
79 m_materials[3].Lighting = true;
84 m_materials[4].setTexture(0, m_moon_texture);
85 m_materials[4].MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
87 m_materials[4].Lighting = true;
90 for (v3f &star : m_stars) {
92 myrand_range(-10000, 10000),
93 myrand_range(-10000, 10000),
94 myrand_range(-10000, 10000)
99 m_directional_colored_fog = g_settings->getBool("directional_colored_fog");
103 void Sky::OnRegisterSceneNode()
106 SceneManager->registerNodeForRendering(this, scene::ESNRP_SKY_BOX);
108 scene::ISceneNode::OnRegisterSceneNode();
117 video::IVideoDriver* driver = SceneManager->getVideoDriver();
118 scene::ICameraSceneNode* camera = SceneManager->getActiveCamera();
120 if (!camera || !driver)
123 ScopeProfiler sp(g_profiler, "Sky::render()", SPT_AVG);
125 // Draw perspective skybox
127 core::matrix4 translate(AbsoluteTransformation);
128 translate.setTranslation(camera->getAbsolutePosition());
130 // Draw the sky box between the near and far clip plane
131 const f32 viewDistance = (camera->getNearValue() + camera->getFarValue()) * 0.5f;
133 scale.setScale(core::vector3df(viewDistance, viewDistance, viewDistance));
135 driver->setTransform(video::ETS_WORLD, translate * scale);
137 if (m_sunlight_seen) {
138 float sunsize = 0.07;
139 video::SColorf suncolor_f(1, 1, 0, 1);
141 //suncolor_f.g = MYMAX(0.3, MYMIN(1.0, 0.7 + m_time_brightness * 0.5));
142 //suncolor_f.b = MYMAX(0.0, m_brightness * 0.95);
143 video::SColorf suncolor2_f(1, 1, 1, 1);
144 // The values below were probably meant to be suncolor2_f instead of a
145 // reassignment of suncolor_f. However, the resulting colour was chosen
146 // and is our long-running classic colour. So preserve, but comment-out
147 // the unnecessary first assignments above.
149 suncolor_f.g = MYMAX(0.3, MYMIN(1.0, 0.85 + m_time_brightness * 0.5));
150 suncolor_f.b = MYMAX(0.0, m_brightness);
152 float moonsize = 0.04;
153 video::SColorf mooncolor_f(0.50, 0.57, 0.65, 1);
154 video::SColorf mooncolor2_f(0.85, 0.875, 0.9, 1);
156 float nightlength = 0.415;
157 float wn = nightlength / 2;
158 float wicked_time_of_day = 0;
159 if (m_time_of_day > wn && m_time_of_day < 1.0 - wn)
160 wicked_time_of_day = (m_time_of_day - wn) / (1.0 - wn * 2) * 0.5 + 0.25;
161 else if (m_time_of_day < 0.5)
162 wicked_time_of_day = m_time_of_day / wn * 0.25;
164 wicked_time_of_day = 1.0 - ((1.0 - m_time_of_day) / wn * 0.25);
165 /*std::cerr<<"time_of_day="<<m_time_of_day<<" -> "
166 <<"wicked_time_of_day="<<wicked_time_of_day<<std::endl;*/
168 video::SColor suncolor = suncolor_f.toSColor();
169 video::SColor suncolor2 = suncolor2_f.toSColor();
170 video::SColor mooncolor = mooncolor_f.toSColor();
171 video::SColor mooncolor2 = mooncolor2_f.toSColor();
173 // Calculate offset normalized to the X dimension of a 512x1 px tonemap
174 float offset = (1.0 - fabs(sin((m_time_of_day - 0.5) * irr::core::PI))) * 511;
177 u8 * texels = (u8 *)m_sun_tonemap->lock();
178 video::SColor* texel = (video::SColor *)(texels + (u32)offset * 4);
179 video::SColor texel_color (255, texel->getRed(),
180 texel->getGreen(), texel->getBlue());
181 m_sun_tonemap->unlock();
182 m_materials[3].EmissiveColor = texel_color;
185 if (m_moon_tonemap) {
186 u8 * texels = (u8 *)m_moon_tonemap->lock();
187 video::SColor* texel = (video::SColor *)(texels + (u32)offset * 4);
188 video::SColor texel_color (255, texel->getRed(),
189 texel->getGreen(), texel->getBlue());
190 m_moon_tonemap->unlock();
191 m_materials[4].EmissiveColor = texel_color;
196 static const u16 indices[4] = {0, 1, 2, 3};
197 video::S3DVertex vertices[4];
199 driver->setMaterial(m_materials[1]);
201 video::SColor cloudyfogcolor = m_bgcolor;
203 // Draw far cloudy fog thing blended with skycolor
204 for (u32 j = 0; j < 4; j++) {
205 video::SColor c = cloudyfogcolor.getInterpolated(m_skycolor, 0.45);
206 vertices[0] = video::S3DVertex(-1, 0.08, -1, 0, 0, 1, c, t, t);
207 vertices[1] = video::S3DVertex( 1, 0.08, -1, 0, 0, 1, c, o, t);
208 vertices[2] = video::S3DVertex( 1, 0.12, -1, 0, 0, 1, c, o, o);
209 vertices[3] = video::S3DVertex(-1, 0.12, -1, 0, 0, 1, c, t, o);
210 for (video::S3DVertex &vertex : vertices) {
215 // Switch from -Z (south) to +X (east)
216 vertex.Pos.rotateXZBy(90);
218 // Switch from -Z (south) to -X (west)
219 vertex.Pos.rotateXZBy(-90);
221 // Switch from -Z (south) to +Z (north)
222 vertex.Pos.rotateXZBy(-180);
224 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
227 // Draw far cloudy fog thing
228 for (u32 j = 0; j < 4; j++) {
229 video::SColor c = cloudyfogcolor;
230 vertices[0] = video::S3DVertex(-1, -1.0, -1, 0, 0, 1, c, t, t);
231 vertices[1] = video::S3DVertex( 1, -1.0, -1, 0, 0, 1, c, o, t);
232 vertices[2] = video::S3DVertex( 1, 0.08, -1, 0, 0, 1, c, o, o);
233 vertices[3] = video::S3DVertex(-1, 0.08, -1, 0, 0, 1, c, t, o);
234 for (video::S3DVertex &vertex : vertices) {
239 // Switch from -Z (south) to +X (east)
240 vertex.Pos.rotateXZBy(90);
242 // Switch from -Z (south) to -X (west)
243 vertex.Pos.rotateXZBy(-90);
245 // Switch from -Z (south) to +Z (north)
246 vertex.Pos.rotateXZBy(-180);
248 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
251 // Draw bottom far cloudy fog thing
252 video::SColor c = cloudyfogcolor;
253 vertices[0] = video::S3DVertex(-1, -1.0, -1, 0, 1, 0, c, t, t);
254 vertices[1] = video::S3DVertex( 1, -1.0, -1, 0, 1, 0, c, o, t);
255 vertices[2] = video::S3DVertex( 1, -1.0, 1, 0, 1, 0, c, o, o);
256 vertices[3] = video::S3DVertex(-1, -1.0, 1, 0, 1, 0, c, t, o);
257 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
259 // If sun, moon and stars are (temporarily) disabled, abort here
260 if (!m_bodies_visible)
263 driver->setMaterial(m_materials[2]);
265 // Draw sunrise/sunset horizon glow texture (textures/base/pack/sunrisebg.png)
268 float mid = wicked_time_of_day < 0.5 ? mid1 : (1.0 - mid1);
269 float a_ = 1.0f - std::fabs(wicked_time_of_day - mid) * 35.0f;
270 float a = easeCurve(MYMAX(0, MYMIN(1, a_)));
271 //std::cerr<<"a_="<<a_<<" a="<<a<<std::endl;
272 video::SColor c(255, 255, 255, 255);
273 float y = -(1.0 - a) * 0.22;
274 vertices[0] = video::S3DVertex(-1, -0.05 + y, -1, 0, 0, 1, c, t, t);
275 vertices[1] = video::S3DVertex( 1, -0.05 + y, -1, 0, 0, 1, c, o, t);
276 vertices[2] = video::S3DVertex( 1, 0.2 + y, -1, 0, 0, 1, c, o, o);
277 vertices[3] = video::S3DVertex(-1, 0.2 + y, -1, 0, 0, 1, c, t, o);
278 for (video::S3DVertex &vertex : vertices) {
279 if (wicked_time_of_day < 0.5)
280 // Switch from -Z (south) to +X (east)
281 vertex.Pos.rotateXZBy(90);
283 // Switch from -Z (south) to -X (west)
284 vertex.Pos.rotateXZBy(-90);
286 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
290 if (wicked_time_of_day > 0.15 && wicked_time_of_day < 0.85) {
291 if (!m_sun_texture) {
292 driver->setMaterial(m_materials[1]);
293 float d = sunsize * 1.7;
294 video::SColor c = suncolor;
295 c.setAlpha(0.05 * 255);
296 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, c, t, t);
297 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, c, o, t);
298 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, c, o, o);
299 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, c, t, o);
300 for (video::S3DVertex &vertex : vertices) {
301 // Switch from -Z (south) to +X (east)
302 vertex.Pos.rotateXZBy(90);
303 vertex.Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
305 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
309 c.setAlpha(0.15 * 255);
310 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, c, t, t);
311 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, c, o, t);
312 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, c, o, o);
313 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, c, t, o);
314 for (video::S3DVertex &vertex : vertices) {
315 // Switch from -Z (south) to +X (east)
316 vertex.Pos.rotateXZBy(90);
317 vertex.Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
319 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
322 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, suncolor, t, t);
323 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, suncolor, o, t);
324 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, suncolor, o, o);
325 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, suncolor, t, o);
326 for (video::S3DVertex &vertex : vertices) {
327 // Switch from -Z (south) to +X (east)
328 vertex.Pos.rotateXZBy(90);
329 vertex.Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
331 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
334 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, suncolor2, t, t);
335 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, suncolor2, o, t);
336 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, suncolor2, o, o);
337 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, suncolor2, t, o);
338 for (video::S3DVertex &vertex : vertices) {
339 // Switch from -Z (south) to +X (east)
340 vertex.Pos.rotateXZBy(90);
341 vertex.Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
343 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
345 driver->setMaterial(m_materials[3]);
346 float d = sunsize * 1.7;
349 c = video::SColor (0, 0, 0, 0);
351 c = video::SColor (255, 255, 255, 255);
352 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, c, t, t);
353 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, c, o, t);
354 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, c, o, o);
355 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, c, t, o);
356 for (video::S3DVertex &vertex : vertices) {
357 // Switch from -Z (south) to +X (east)
358 vertex.Pos.rotateXZBy(90);
359 vertex.Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
361 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
366 if (wicked_time_of_day < 0.3 || wicked_time_of_day > 0.7) {
367 if (!m_moon_texture) {
368 driver->setMaterial(m_materials[1]);
369 float d = moonsize * 1.9;
370 video::SColor c = mooncolor;
371 c.setAlpha(0.05 * 255);
372 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, c, t, t);
373 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, c, o, t);
374 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, c, o, o);
375 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, c, t, o);
376 for (video::S3DVertex &vertex : vertices) {
377 // Switch from -Z (south) to -X (west)
378 vertex.Pos.rotateXZBy(-90);
379 vertex.Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
381 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
385 c.setAlpha(0.15 * 255);
386 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, c, t, t);
387 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, c, o, t);
388 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, c, o, o);
389 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, c, t, o);
390 for (video::S3DVertex &vertex : vertices) {
391 // Switch from -Z (south) to -X (west)
392 vertex.Pos.rotateXZBy(-90);
393 vertex.Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
395 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
398 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, mooncolor, t, t);
399 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, mooncolor, o, t);
400 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, mooncolor, o, o);
401 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, mooncolor, t, o);
402 for (video::S3DVertex &vertex : vertices) {
403 // Switch from -Z (south) to -X (west)
404 vertex.Pos.rotateXZBy(-90);
405 vertex.Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
407 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
409 float d2 = moonsize * 0.6;
410 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, mooncolor2, t, t);
411 vertices[1] = video::S3DVertex( d2,-d, -1, 0, 0, 1, mooncolor2, o, t);
412 vertices[2] = video::S3DVertex( d2, d2, -1, 0, 0, 1, mooncolor2, o, o);
413 vertices[3] = video::S3DVertex(-d, d2, -1, 0, 0, 1, mooncolor2, t, o);
414 for (video::S3DVertex &vertex : vertices) {
415 // Switch from -Z (south) to -X (west)
416 vertex.Pos.rotateXZBy(-90);
417 vertex.Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
419 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
421 driver->setMaterial(m_materials[4]);
422 float d = moonsize * 1.9;
425 c = video::SColor (0, 0, 0, 0);
427 c = video::SColor (255, 255, 255, 255);
428 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, c, t, t);
429 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, c, o, t);
430 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, c, o, o);
431 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, c, t, o);
432 for (video::S3DVertex &vertex : vertices) {
433 // Switch from -Z (south) to -X (west)
434 vertex.Pos.rotateXZBy(-90);
435 vertex.Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
437 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
443 driver->setMaterial(m_materials[1]);
444 float starbrightness = MYMAX(0, MYMIN(1,
445 (0.285 - fabs(wicked_time_of_day < 0.5 ?
446 wicked_time_of_day : (1.0 - wicked_time_of_day))) * 10));
447 float f = starbrightness;
449 video::SColor starcolor(255, f * 90, f * 90, f * 90);
450 if (starcolor.getBlue() < m_skycolor.getBlue())
452 u16 indices[SKY_STAR_COUNT * 4];
453 video::S3DVertex vertices[SKY_STAR_COUNT * 4];
454 for (u32 i = 0; i < SKY_STAR_COUNT; i++) {
455 indices[i * 4 + 0] = i * 4 + 0;
456 indices[i * 4 + 1] = i * 4 + 1;
457 indices[i * 4 + 2] = i * 4 + 2;
458 indices[i * 4 + 3] = i * 4 + 3;
460 core::CMatrix4<f32> a;
461 a.buildRotateFromTo(v3f(0, 1, 0), v3f(d, 1 + d / 2, 0));
464 a.buildRotateFromTo(v3f(0, 1, 0), v3f(d, 1, d));
467 a.buildRotateFromTo(v3f(0, 1, 0), v3f(0, 1 - d / 2, d));
470 p.rotateXYBy(wicked_time_of_day * 360 - 90);
471 p1.rotateXYBy(wicked_time_of_day * 360 - 90);
472 p2.rotateXYBy(wicked_time_of_day * 360 - 90);
473 p3.rotateXYBy(wicked_time_of_day * 360 - 90);
474 vertices[i * 4 + 0].Pos = p;
475 vertices[i * 4 + 0].Color = starcolor;
476 vertices[i * 4 + 1].Pos = p1;
477 vertices[i * 4 + 1].Color = starcolor;
478 vertices[i * 4 + 2].Pos = p2;
479 vertices[i * 4 + 2].Color = starcolor;
480 vertices[i * 4 + 3].Pos = p3;
481 vertices[i * 4 + 3].Color = starcolor;
483 driver->drawVertexPrimitiveList(vertices, SKY_STAR_COUNT * 4,
484 indices, SKY_STAR_COUNT, video::EVT_STANDARD,
485 scene::EPT_QUADS, video::EIT_16BIT);
488 // Draw far cloudy fog thing below east and west horizons
489 for (u32 j = 0; j < 2; j++) {
490 video::SColor c = cloudyfogcolor;
491 vertices[0] = video::S3DVertex(-1, -1.0, -1, 0, 0, 1, c, t, t);
492 vertices[1] = video::S3DVertex( 1, -1.0, -1, 0, 0, 1, c, o, t);
493 vertices[2] = video::S3DVertex( 1, -0.02, -1, 0, 0, 1, c, o, o);
494 vertices[3] = video::S3DVertex(-1, -0.02, -1, 0, 0, 1, c, t, o);
495 for (video::S3DVertex &vertex : vertices) {
496 //if (wicked_time_of_day < 0.5)
498 // Switch from -Z (south) to +X (east)
499 vertex.Pos.rotateXZBy(90);
501 // Switch from -Z (south) to -X (west)
502 vertex.Pos.rotateXZBy(-90);
504 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
510 void Sky::update(float time_of_day, float time_brightness,
511 float direct_brightness, bool sunlight_seen,
512 CameraMode cam_mode, float yaw, float pitch)
514 // Stabilize initial brightness and color values by flooding updates
515 if (m_first_update) {
516 /*dstream<<"First update with time_of_day="<<time_of_day
517 <<" time_brightness="<<time_brightness
518 <<" direct_brightness="<<direct_brightness
519 <<" sunlight_seen="<<sunlight_seen<<std::endl;*/
520 m_first_update = false;
521 for (u32 i = 0; i < 100; i++) {
522 update(time_of_day, time_brightness, direct_brightness,
523 sunlight_seen, cam_mode, yaw, pitch);
528 m_time_of_day = time_of_day;
529 m_time_brightness = time_brightness;
530 m_sunlight_seen = sunlight_seen;
531 m_bodies_visible = true;
533 bool is_dawn = (time_brightness >= 0.20 && time_brightness < 0.35);
538 video::SColorf bgcolor_bright_normal_f(170. / 255, 200. / 255, 230. / 255, 1.0);
539 video::SColorf bgcolor_bright_dawn_f(0.666, 200. / 255 * 0.7, 230. / 255 * 0.5, 1.0);
540 video::SColorf bgcolor_bright_dawn_f(0.666, 0.549, 0.220, 1.0);
541 video::SColorf bgcolor_bright_dawn_f(0.666 * 1.2, 0.549 * 1.0, 0.220 * 1.0, 1.0);
542 video::SColorf bgcolor_bright_dawn_f(0.666 * 1.2, 0.549 * 1.0, 0.220 * 1.2, 1.0);
544 video::SColorf cloudcolor_bright_dawn_f(1.0, 0.591, 0.4);
545 video::SColorf cloudcolor_bright_dawn_f(1.0, 0.65, 0.44);
546 video::SColorf cloudcolor_bright_dawn_f(1.0, 0.7, 0.5);
549 video::SColorf bgcolor_bright_normal_f = video::SColor(255, 155, 193, 240);
550 video::SColorf bgcolor_bright_indoor_f = video::SColor(255, 100, 100, 100);
551 video::SColorf bgcolor_bright_dawn_f = video::SColor(255, 186, 193, 240);
552 video::SColorf bgcolor_bright_night_f = video::SColor(255, 64, 144, 255);
554 video::SColorf skycolor_bright_normal_f = video::SColor(255, 140, 186, 250);
555 video::SColorf skycolor_bright_dawn_f = video::SColor(255, 180, 186, 250);
556 video::SColorf skycolor_bright_night_f = video::SColor(255, 0, 107, 255);
558 // pure white: becomes "diffuse light component" for clouds
559 video::SColorf cloudcolor_bright_normal_f = video::SColor(255, 255, 255, 255);
560 // dawn-factoring version of pure white (note: R is above 1.0)
561 video::SColorf cloudcolor_bright_dawn_f(255.0f/240.0f, 223.0f/240.0f, 191.0f/255.0f);
563 float cloud_color_change_fraction = 0.95;
565 if (std::fabs(time_brightness - m_brightness) < 0.2f) {
566 m_brightness = m_brightness * 0.95 + time_brightness * 0.05;
568 m_brightness = m_brightness * 0.80 + time_brightness * 0.20;
569 cloud_color_change_fraction = 0.0;
572 if (direct_brightness < m_brightness)
573 m_brightness = m_brightness * 0.95 + direct_brightness * 0.05;
575 m_brightness = m_brightness * 0.98 + direct_brightness * 0.02;
578 m_clouds_visible = true;
579 float color_change_fraction = 0.98;
581 if (is_dawn) { // Dawn
582 m_bgcolor_bright_f = m_bgcolor_bright_f.getInterpolated(
583 bgcolor_bright_dawn_f, color_change_fraction);
584 m_skycolor_bright_f = m_skycolor_bright_f.getInterpolated(
585 skycolor_bright_dawn_f, color_change_fraction);
586 m_cloudcolor_bright_f = m_cloudcolor_bright_f.getInterpolated(
587 cloudcolor_bright_dawn_f, color_change_fraction);
589 if (time_brightness < 0.07) { // Night
590 m_bgcolor_bright_f = m_bgcolor_bright_f.getInterpolated(
591 bgcolor_bright_night_f, color_change_fraction);
592 m_skycolor_bright_f = m_skycolor_bright_f.getInterpolated(
593 skycolor_bright_night_f, color_change_fraction);
595 m_bgcolor_bright_f = m_bgcolor_bright_f.getInterpolated(
596 bgcolor_bright_normal_f, color_change_fraction);
597 m_skycolor_bright_f = m_skycolor_bright_f.getInterpolated(
598 skycolor_bright_normal_f, color_change_fraction);
601 m_cloudcolor_bright_f = m_cloudcolor_bright_f.getInterpolated(
602 cloudcolor_bright_normal_f, color_change_fraction);
605 m_bgcolor_bright_f = m_bgcolor_bright_f.getInterpolated(
606 bgcolor_bright_indoor_f, color_change_fraction);
607 m_skycolor_bright_f = m_skycolor_bright_f.getInterpolated(
608 bgcolor_bright_indoor_f, color_change_fraction);
609 m_cloudcolor_bright_f = m_cloudcolor_bright_f.getInterpolated(
610 cloudcolor_bright_normal_f, color_change_fraction);
611 m_clouds_visible = false;
614 video::SColor bgcolor_bright = m_bgcolor_bright_f.toSColor();
615 m_bgcolor = video::SColor(
617 bgcolor_bright.getRed() * m_brightness,
618 bgcolor_bright.getGreen() * m_brightness,
619 bgcolor_bright.getBlue() * m_brightness
622 video::SColor skycolor_bright = m_skycolor_bright_f.toSColor();
623 m_skycolor = video::SColor(
625 skycolor_bright.getRed() * m_brightness,
626 skycolor_bright.getGreen() * m_brightness,
627 skycolor_bright.getBlue() * m_brightness
630 // Horizon coloring based on sun and moon direction during sunset and sunrise
631 video::SColor pointcolor = video::SColor(m_bgcolor.getAlpha(), 255, 255, 255);
632 if (m_directional_colored_fog) {
633 if (m_horizon_blend() != 0) {
634 // Calculate hemisphere value from yaw, (inverted in third person front view)
636 if (cam_mode > CAMERA_MODE_THIRD)
638 f32 pointcolor_blend = wrapDegrees_0_360(yaw * dir_factor + 90);
639 if (pointcolor_blend > 180)
640 pointcolor_blend = 360 - pointcolor_blend;
641 pointcolor_blend /= 180;
642 // Bound view angle to determine where transition starts and ends
643 pointcolor_blend = rangelim(1 - pointcolor_blend * 1.375, 0, 1 / 1.375) *
645 // Combine the colors when looking up or down, otherwise turning looks weird
646 pointcolor_blend += (0.5 - pointcolor_blend) *
647 (1 - MYMIN((90 - std::fabs(pitch)) / 90 * 1.5, 1));
648 // Invert direction to match where the sun and moon are rising
649 if (m_time_of_day > 0.5)
650 pointcolor_blend = 1 - pointcolor_blend;
651 // Horizon colors of sun and moon
652 f32 pointcolor_light = rangelim(m_time_brightness * 3, 0.2, 1);
654 video::SColorf pointcolor_sun_f(1, 1, 1, 1);
656 pointcolor_sun_f.r = pointcolor_light *
657 (float)m_materials[3].EmissiveColor.getRed() / 255;
658 pointcolor_sun_f.b = pointcolor_light *
659 (float)m_materials[3].EmissiveColor.getBlue() / 255;
660 pointcolor_sun_f.g = pointcolor_light *
661 (float)m_materials[3].EmissiveColor.getGreen() / 255;
663 pointcolor_sun_f.r = pointcolor_light * 1;
664 pointcolor_sun_f.b = pointcolor_light *
665 (0.25 + (rangelim(m_time_brightness, 0.25, 0.75) - 0.25) * 2 * 0.75);
666 pointcolor_sun_f.g = pointcolor_light * (pointcolor_sun_f.b * 0.375 +
667 (rangelim(m_time_brightness, 0.05, 0.15) - 0.05) * 10 * 0.625);
670 video::SColorf pointcolor_moon_f(0.5 * pointcolor_light,
671 0.6 * pointcolor_light, 0.8 * pointcolor_light, 1);
672 if (m_moon_tonemap) {
673 pointcolor_moon_f.r = pointcolor_light *
674 (float)m_materials[4].EmissiveColor.getRed() / 255;
675 pointcolor_moon_f.b = pointcolor_light *
676 (float)m_materials[4].EmissiveColor.getBlue() / 255;
677 pointcolor_moon_f.g = pointcolor_light *
678 (float)m_materials[4].EmissiveColor.getGreen() / 255;
681 video::SColor pointcolor_sun = pointcolor_sun_f.toSColor();
682 video::SColor pointcolor_moon = pointcolor_moon_f.toSColor();
683 // Calculate the blend color
684 pointcolor = m_mix_scolor(pointcolor_moon, pointcolor_sun, pointcolor_blend);
686 m_bgcolor = m_mix_scolor(m_bgcolor, pointcolor, m_horizon_blend() * 0.5);
687 m_skycolor = m_mix_scolor(m_skycolor, pointcolor, m_horizon_blend() * 0.25);
690 float cloud_direct_brightness = 0;
692 if (!m_directional_colored_fog) {
693 cloud_direct_brightness = time_brightness;
694 if (time_brightness >= 0.2 && time_brightness < 0.7)
695 cloud_direct_brightness *= 1.3;
697 cloud_direct_brightness = MYMIN(m_horizon_blend() * 0.15 +
698 m_time_brightness, 1);
701 cloud_direct_brightness = direct_brightness;
704 m_cloud_brightness = m_cloud_brightness * cloud_color_change_fraction +
705 cloud_direct_brightness * (1.0 - cloud_color_change_fraction);
706 m_cloudcolor_f = video::SColorf(
707 m_cloudcolor_bright_f.r * m_cloud_brightness,
708 m_cloudcolor_bright_f.g * m_cloud_brightness,
709 m_cloudcolor_bright_f.b * m_cloud_brightness,
712 if (m_directional_colored_fog) {
713 m_cloudcolor_f = m_mix_scolorf(m_cloudcolor_f,
714 video::SColorf(pointcolor), m_horizon_blend() * 0.25);