2 #include "IVideoDriver.h"
3 #include "ISceneManager.h"
4 #include "ICameraSceneNode.h"
6 #include "client/tile.h"
7 #include "noise.h" // easeCurve
9 #include "util/numeric.h"
11 #include "client/renderingengine.h"
13 #include "camera.h" // CameraModes
16 Sky::Sky(s32 id, ITextureSource *tsrc):
17 scene::ISceneNode(RenderingEngine::get_scene_manager()->getRootSceneNode(),
18 RenderingEngine::get_scene_manager(), id)
20 setAutomaticCulling(scene::EAC_OFF);
21 m_box.MaxEdge.set(0, 0, 0);
22 m_box.MinEdge.set(0, 0, 0);
28 mat.ZBuffer = video::ECFN_NEVER;
29 mat.ZWriteEnable = false;
31 mat.TextureLayer[0].TextureWrapU = video::ETC_CLAMP_TO_EDGE;
32 mat.TextureLayer[0].TextureWrapV = video::ETC_CLAMP_TO_EDGE;
33 mat.BackfaceCulling = false;
38 //m_materials[1].MaterialType = video::EMT_TRANSPARENT_VERTEX_ALPHA;
39 m_materials[1].MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
42 m_materials[2].setTexture(0, tsrc->getTextureForMesh("sunrisebg.png"));
43 m_materials[2].MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
44 //m_materials[2].MaterialType = video::EMT_TRANSPARENT_ADD_COLOR;
46 m_sun_texture = tsrc->isKnownSourceImage("sun.png") ?
47 tsrc->getTextureForMesh("sun.png") : NULL;
48 m_moon_texture = tsrc->isKnownSourceImage("moon.png") ?
49 tsrc->getTextureForMesh("moon.png") : NULL;
50 m_sun_tonemap = tsrc->isKnownSourceImage("sun_tonemap.png") ?
51 tsrc->getTexture("sun_tonemap.png") : NULL;
52 m_moon_tonemap = tsrc->isKnownSourceImage("moon_tonemap.png") ?
53 tsrc->getTexture("moon_tonemap.png") : NULL;
57 m_materials[3].setTexture(0, m_sun_texture);
58 m_materials[3].MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
60 m_materials[3].Lighting = true;
65 m_materials[4].setTexture(0, m_moon_texture);
66 m_materials[4].MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
68 m_materials[4].Lighting = true;
71 for (u32 i = 0; i < SKY_STAR_COUNT; i++) {
73 myrand_range(-10000, 10000),
74 myrand_range(-10000, 10000),
75 myrand_range(-10000, 10000)
77 m_stars[i].normalize();
80 m_directional_colored_fog = g_settings->getBool("directional_colored_fog");
84 void Sky::OnRegisterSceneNode()
87 SceneManager->registerNodeForRendering(this, scene::ESNRP_SKY_BOX);
89 scene::ISceneNode::OnRegisterSceneNode();
98 video::IVideoDriver* driver = SceneManager->getVideoDriver();
99 scene::ICameraSceneNode* camera = SceneManager->getActiveCamera();
101 if (!camera || !driver)
104 ScopeProfiler sp(g_profiler, "Sky::render()", SPT_AVG);
106 // Draw perspective skybox
108 core::matrix4 translate(AbsoluteTransformation);
109 translate.setTranslation(camera->getAbsolutePosition());
111 // Draw the sky box between the near and far clip plane
112 const f32 viewDistance = (camera->getNearValue() + camera->getFarValue()) * 0.5f;
114 scale.setScale(core::vector3df(viewDistance, viewDistance, viewDistance));
116 driver->setTransform(video::ETS_WORLD, translate * scale);
118 if (m_sunlight_seen) {
119 float sunsize = 0.07;
120 video::SColorf suncolor_f(1, 1, 0, 1);
122 suncolor_f.g = MYMAX(0.3, MYMIN(1.0, 0.7 + m_time_brightness * 0.5));
123 suncolor_f.b = MYMAX(0.0, m_brightness * 0.95);
124 video::SColorf suncolor2_f(1, 1, 1, 1);
126 suncolor_f.g = MYMAX(0.3, MYMIN(1.0, 0.85 + m_time_brightness * 0.5));
127 suncolor_f.b = MYMAX(0.0, m_brightness);
129 float moonsize = 0.04;
130 video::SColorf mooncolor_f(0.50, 0.57, 0.65, 1);
131 video::SColorf mooncolor2_f(0.85, 0.875, 0.9, 1);
133 float nightlength = 0.415;
134 float wn = nightlength / 2;
135 float wicked_time_of_day = 0;
136 if (m_time_of_day > wn && m_time_of_day < 1.0 - wn)
137 wicked_time_of_day = (m_time_of_day - wn) / (1.0 - wn * 2) * 0.5 + 0.25;
138 else if (m_time_of_day < 0.5)
139 wicked_time_of_day = m_time_of_day / wn * 0.25;
141 wicked_time_of_day = 1.0 - ((1.0 - m_time_of_day) / wn * 0.25);
142 /*std::cerr<<"time_of_day="<<m_time_of_day<<" -> "
143 <<"wicked_time_of_day="<<wicked_time_of_day<<std::endl;*/
145 video::SColor suncolor = suncolor_f.toSColor();
146 video::SColor suncolor2 = suncolor2_f.toSColor();
147 video::SColor mooncolor = mooncolor_f.toSColor();
148 video::SColor mooncolor2 = mooncolor2_f.toSColor();
150 // Calculate offset normalized to the X dimension of a 512x1 px tonemap
151 float offset = (1.0 - fabs(sin((m_time_of_day - 0.5) * irr::core::PI))) * 511;
154 u8 * texels = (u8 *)m_sun_tonemap->lock();
155 video::SColor* texel = (video::SColor *)(texels + (u32)offset * 4);
156 video::SColor texel_color (255, texel->getRed(),
157 texel->getGreen(), texel->getBlue());
158 m_sun_tonemap->unlock();
159 m_materials[3].EmissiveColor = texel_color;
162 if (m_moon_tonemap) {
163 u8 * texels = (u8 *)m_moon_tonemap->lock();
164 video::SColor* texel = (video::SColor *)(texels + (u32)offset * 4);
165 video::SColor texel_color (255, texel->getRed(),
166 texel->getGreen(), texel->getBlue());
167 m_moon_tonemap->unlock();
168 m_materials[4].EmissiveColor = texel_color;
173 static const u16 indices[4] = {0, 1, 2, 3};
174 video::S3DVertex vertices[4];
176 driver->setMaterial(m_materials[1]);
178 video::SColor cloudyfogcolor = m_bgcolor;
180 // Draw far cloudy fog thing blended with skycolor
181 for (u32 j = 0; j < 4; j++) {
182 video::SColor c = cloudyfogcolor.getInterpolated(m_skycolor, 0.45);
183 vertices[0] = video::S3DVertex(-1, 0.08, -1, 0, 0, 1, c, t, t);
184 vertices[1] = video::S3DVertex( 1, 0.08, -1, 0, 0, 1, c, o, t);
185 vertices[2] = video::S3DVertex( 1, 0.12, -1, 0, 0, 1, c, o, o);
186 vertices[3] = video::S3DVertex(-1, 0.12, -1, 0, 0, 1, c, t, o);
187 for (u32 i = 0; i < 4; i++) {
192 // Switch from -Z (south) to +X (east)
193 vertices[i].Pos.rotateXZBy(90);
195 // Switch from -Z (south) to -X (west)
196 vertices[i].Pos.rotateXZBy(-90);
198 // Switch from -Z (south) to +Z (north)
199 vertices[i].Pos.rotateXZBy(-180);
201 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
204 // Draw far cloudy fog thing
205 for (u32 j = 0; j < 4; j++) {
206 video::SColor c = cloudyfogcolor;
207 vertices[0] = video::S3DVertex(-1, -1.0, -1, 0, 0, 1, c, t, t);
208 vertices[1] = video::S3DVertex( 1, -1.0, -1, 0, 0, 1, c, o, t);
209 vertices[2] = video::S3DVertex( 1, 0.08, -1, 0, 0, 1, c, o, o);
210 vertices[3] = video::S3DVertex(-1, 0.08, -1, 0, 0, 1, c, t, o);
211 for (u32 i = 0; i < 4; i++) {
216 // Switch from -Z (south) to +X (east)
217 vertices[i].Pos.rotateXZBy(90);
219 // Switch from -Z (south) to -X (west)
220 vertices[i].Pos.rotateXZBy(-90);
222 // Switch from -Z (south) to +Z (north)
223 vertices[i].Pos.rotateXZBy(-180);
225 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
228 // Draw bottom far cloudy fog thing
229 video::SColor c = cloudyfogcolor;
230 vertices[0] = video::S3DVertex(-1, -1.0, -1, 0, 1, 0, c, t, t);
231 vertices[1] = video::S3DVertex( 1, -1.0, -1, 0, 1, 0, c, o, t);
232 vertices[2] = video::S3DVertex( 1, -1.0, 1, 0, 1, 0, c, o, o);
233 vertices[3] = video::S3DVertex(-1, -1.0, 1, 0, 1, 0, c, t, o);
234 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
236 // If sun, moon and stars are (temporarily) disabled, abort here
237 if (!m_bodies_visible)
240 driver->setMaterial(m_materials[2]);
242 // Draw sunrise/sunset horizon glow texture (textures/base/pack/sunrisebg.png)
245 float mid = wicked_time_of_day < 0.5 ? mid1 : (1.0 - mid1);
246 float a_ = 1.0 - fabs(wicked_time_of_day - mid) * 35.0;
247 float a = easeCurve(MYMAX(0, MYMIN(1, a_)));
248 //std::cerr<<"a_="<<a_<<" a="<<a<<std::endl;
249 video::SColor c(255, 255, 255, 255);
250 float y = -(1.0 - a) * 0.22;
251 vertices[0] = video::S3DVertex(-1, -0.05 + y, -1, 0, 0, 1, c, t, t);
252 vertices[1] = video::S3DVertex( 1, -0.05 + y, -1, 0, 0, 1, c, o, t);
253 vertices[2] = video::S3DVertex( 1, 0.2 + y, -1, 0, 0, 1, c, o, o);
254 vertices[3] = video::S3DVertex(-1, 0.2 + y, -1, 0, 0, 1, c, t, o);
255 for (u32 i = 0; i < 4; i++) {
256 if (wicked_time_of_day < 0.5)
257 // Switch from -Z (south) to +X (east)
258 vertices[i].Pos.rotateXZBy(90);
260 // Switch from -Z (south) to -X (west)
261 vertices[i].Pos.rotateXZBy(-90);
263 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
267 if (wicked_time_of_day > 0.15 && wicked_time_of_day < 0.85) {
268 if (!m_sun_texture) {
269 driver->setMaterial(m_materials[1]);
270 float d = sunsize * 1.7;
271 video::SColor c = suncolor;
272 c.setAlpha(0.05 * 255);
273 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, c, t, t);
274 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, c, o, t);
275 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, c, o, o);
276 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, c, t, o);
277 for (u32 i = 0; i < 4; i++) {
278 // Switch from -Z (south) to +X (east)
279 vertices[i].Pos.rotateXZBy(90);
280 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
282 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
286 c.setAlpha(0.15 * 255);
287 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, c, t, t);
288 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, c, o, t);
289 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, c, o, o);
290 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, c, t, o);
291 for (u32 i = 0; i < 4; i++) {
292 // Switch from -Z (south) to +X (east)
293 vertices[i].Pos.rotateXZBy(90);
294 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
296 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
299 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, suncolor, t, t);
300 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, suncolor, o, t);
301 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, suncolor, o, o);
302 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, suncolor, t, o);
303 for (u32 i = 0; i < 4; i++) {
304 // Switch from -Z (south) to +X (east)
305 vertices[i].Pos.rotateXZBy(90);
306 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
308 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
311 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, suncolor2, t, t);
312 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, suncolor2, o, t);
313 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, suncolor2, o, o);
314 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, suncolor2, t, o);
315 for (u32 i = 0; i < 4; i++) {
316 // Switch from -Z (south) to +X (east)
317 vertices[i].Pos.rotateXZBy(90);
318 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
320 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
322 driver->setMaterial(m_materials[3]);
323 float d = sunsize * 1.7;
326 c = video::SColor (0, 0, 0, 0);
328 c = video::SColor (255, 255, 255, 255);
329 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, c, t, t);
330 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, c, o, t);
331 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, c, o, o);
332 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, c, t, o);
333 for(u32 i = 0; i < 4; i++) {
334 // Switch from -Z (south) to +X (east)
335 vertices[i].Pos.rotateXZBy(90);
336 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
338 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
343 if (wicked_time_of_day < 0.3 || wicked_time_of_day > 0.7) {
344 if (!m_moon_texture) {
345 driver->setMaterial(m_materials[1]);
346 float d = moonsize * 1.9;
347 video::SColor c = mooncolor;
348 c.setAlpha(0.05 * 255);
349 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, c, t, t);
350 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, c, o, t);
351 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, c, o, o);
352 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, c, t, o);
353 for (u32 i = 0; i < 4; i++) {
354 // Switch from -Z (south) to -X (west)
355 vertices[i].Pos.rotateXZBy(-90);
356 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
358 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
362 c.setAlpha(0.15 * 255);
363 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, c, t, t);
364 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, c, o, t);
365 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, c, o, o);
366 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, c, t, o);
367 for (u32 i = 0; i < 4; i++) {
368 // Switch from -Z (south) to -X (west)
369 vertices[i].Pos.rotateXZBy(-90);
370 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
372 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
375 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, mooncolor, t, t);
376 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, mooncolor, o, t);
377 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, mooncolor, o, o);
378 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, mooncolor, t, o);
379 for (u32 i = 0; i < 4; i++) {
380 // Switch from -Z (south) to -X (west)
381 vertices[i].Pos.rotateXZBy(-90);
382 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
384 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
386 float d2 = moonsize * 0.6;
387 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, mooncolor2, t, t);
388 vertices[1] = video::S3DVertex( d2,-d, -1, 0, 0, 1, mooncolor2, o, t);
389 vertices[2] = video::S3DVertex( d2, d2, -1, 0, 0, 1, mooncolor2, o, o);
390 vertices[3] = video::S3DVertex(-d, d2, -1, 0, 0, 1, mooncolor2, t, o);
391 for (u32 i = 0; i < 4; i++) {
392 // Switch from -Z (south) to -X (west)
393 vertices[i].Pos.rotateXZBy(-90);
394 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
396 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
398 driver->setMaterial(m_materials[4]);
399 float d = moonsize * 1.9;
402 c = video::SColor (0, 0, 0, 0);
404 c = video::SColor (255, 255, 255, 255);
405 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, c, t, t);
406 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, c, o, t);
407 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, c, o, o);
408 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, c, t, o);
409 for (u32 i = 0; i < 4; i++) {
410 // Switch from -Z (south) to -X (west)
411 vertices[i].Pos.rotateXZBy(-90);
412 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
414 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
420 driver->setMaterial(m_materials[1]);
421 float starbrightness = MYMAX(0, MYMIN(1,
422 (0.285 - fabs(wicked_time_of_day < 0.5 ?
423 wicked_time_of_day : (1.0 - wicked_time_of_day))) * 10));
424 float f = starbrightness;
426 video::SColor starcolor(255, f * 90, f * 90, f * 90);
427 if (starcolor.getBlue() < m_skycolor.getBlue())
429 u16 indices[SKY_STAR_COUNT * 4];
430 video::S3DVertex vertices[SKY_STAR_COUNT * 4];
431 for (u32 i = 0; i < SKY_STAR_COUNT; i++) {
432 indices[i * 4 + 0] = i * 4 + 0;
433 indices[i * 4 + 1] = i * 4 + 1;
434 indices[i * 4 + 2] = i * 4 + 2;
435 indices[i * 4 + 3] = i * 4 + 3;
437 core::CMatrix4<f32> a;
438 a.buildRotateFromTo(v3f(0, 1, 0), v3f(d, 1 + d / 2, 0));
441 a.buildRotateFromTo(v3f(0, 1, 0), v3f(d, 1, d));
444 a.buildRotateFromTo(v3f(0, 1, 0), v3f(0, 1 - d / 2, d));
447 p.rotateXYBy(wicked_time_of_day * 360 - 90);
448 p1.rotateXYBy(wicked_time_of_day * 360 - 90);
449 p2.rotateXYBy(wicked_time_of_day * 360 - 90);
450 p3.rotateXYBy(wicked_time_of_day * 360 - 90);
451 vertices[i * 4 + 0].Pos = p;
452 vertices[i * 4 + 0].Color = starcolor;
453 vertices[i * 4 + 1].Pos = p1;
454 vertices[i * 4 + 1].Color = starcolor;
455 vertices[i * 4 + 2].Pos = p2;
456 vertices[i * 4 + 2].Color = starcolor;
457 vertices[i * 4 + 3].Pos = p3;
458 vertices[i * 4 + 3].Color = starcolor;
460 driver->drawVertexPrimitiveList(vertices, SKY_STAR_COUNT * 4,
461 indices, SKY_STAR_COUNT, video::EVT_STANDARD,
462 scene::EPT_QUADS, video::EIT_16BIT);
465 // Draw far cloudy fog thing below east and west horizons
466 for (u32 j = 0; j < 2; j++) {
467 video::SColor c = cloudyfogcolor;
468 vertices[0] = video::S3DVertex(-1, -1.0, -1, 0, 0, 1, c, t, t);
469 vertices[1] = video::S3DVertex( 1, -1.0, -1, 0, 0, 1, c, o, t);
470 vertices[2] = video::S3DVertex( 1, -0.02, -1, 0, 0, 1, c, o, o);
471 vertices[3] = video::S3DVertex(-1, -0.02, -1, 0, 0, 1, c, t, o);
472 for (u32 i = 0; i < 4; i++) {
473 //if (wicked_time_of_day < 0.5)
475 // Switch from -Z (south) to +X (east)
476 vertices[i].Pos.rotateXZBy(90);
478 // Switch from -Z (south) to -X (west)
479 vertices[i].Pos.rotateXZBy(-90);
481 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
487 void Sky::update(float time_of_day, float time_brightness,
488 float direct_brightness, bool sunlight_seen,
489 CameraMode cam_mode, float yaw, float pitch)
491 // Stabilize initial brightness and color values by flooding updates
492 if (m_first_update) {
493 /*dstream<<"First update with time_of_day="<<time_of_day
494 <<" time_brightness="<<time_brightness
495 <<" direct_brightness="<<direct_brightness
496 <<" sunlight_seen="<<sunlight_seen<<std::endl;*/
497 m_first_update = false;
498 for (u32 i = 0; i < 100; i++) {
499 update(time_of_day, time_brightness, direct_brightness,
500 sunlight_seen, cam_mode, yaw, pitch);
505 m_time_of_day = time_of_day;
506 m_time_brightness = time_brightness;
507 m_sunlight_seen = sunlight_seen;
508 m_bodies_visible = true;
510 bool is_dawn = (time_brightness >= 0.20 && time_brightness < 0.35);
515 video::SColorf bgcolor_bright_normal_f(170. / 255, 200. / 255, 230. / 255, 1.0);
516 video::SColorf bgcolor_bright_dawn_f(0.666, 200. / 255 * 0.7, 230. / 255 * 0.5, 1.0);
517 video::SColorf bgcolor_bright_dawn_f(0.666, 0.549, 0.220, 1.0);
518 video::SColorf bgcolor_bright_dawn_f(0.666 * 1.2, 0.549 * 1.0, 0.220 * 1.0, 1.0);
519 video::SColorf bgcolor_bright_dawn_f(0.666 * 1.2, 0.549 * 1.0, 0.220 * 1.2, 1.0);
521 video::SColorf cloudcolor_bright_dawn_f(1.0, 0.591, 0.4);
522 video::SColorf cloudcolor_bright_dawn_f(1.0, 0.65, 0.44);
523 video::SColorf cloudcolor_bright_dawn_f(1.0, 0.7, 0.5);
526 video::SColorf bgcolor_bright_normal_f = video::SColor(255, 155, 193, 240);
527 video::SColorf bgcolor_bright_indoor_f = video::SColor(255, 100, 100, 100);
528 video::SColorf bgcolor_bright_dawn_f = video::SColor(255, 186, 193, 240);
529 video::SColorf bgcolor_bright_night_f = video::SColor(255, 64, 144, 255);
531 video::SColorf skycolor_bright_normal_f = video::SColor(255, 140, 186, 250);
532 video::SColorf skycolor_bright_dawn_f = video::SColor(255, 180, 186, 250);
533 video::SColorf skycolor_bright_night_f = video::SColor(255, 0, 107, 255);
535 // pure white: becomes "diffuse light component" for clouds
536 video::SColorf cloudcolor_bright_normal_f = video::SColor(255, 255, 255, 255);
537 // dawn-factoring version of pure white (note: R is above 1.0)
538 video::SColorf cloudcolor_bright_dawn_f(255.0f/240.0f, 223.0f/240.0f, 191.0f/255.0f);
540 float cloud_color_change_fraction = 0.95;
542 if (fabs(time_brightness - m_brightness) < 0.2) {
543 m_brightness = m_brightness * 0.95 + time_brightness * 0.05;
545 m_brightness = m_brightness * 0.80 + time_brightness * 0.20;
546 cloud_color_change_fraction = 0.0;
549 if (direct_brightness < m_brightness)
550 m_brightness = m_brightness * 0.95 + direct_brightness * 0.05;
552 m_brightness = m_brightness * 0.98 + direct_brightness * 0.02;
555 m_clouds_visible = true;
556 float color_change_fraction = 0.98;
558 if (is_dawn) { // Dawn
559 m_bgcolor_bright_f = m_bgcolor_bright_f.getInterpolated(
560 bgcolor_bright_dawn_f, color_change_fraction);
561 m_skycolor_bright_f = m_skycolor_bright_f.getInterpolated(
562 skycolor_bright_dawn_f, color_change_fraction);
563 m_cloudcolor_bright_f = m_cloudcolor_bright_f.getInterpolated(
564 cloudcolor_bright_dawn_f, color_change_fraction);
566 if (time_brightness < 0.07) { // Night
567 m_bgcolor_bright_f = m_bgcolor_bright_f.getInterpolated(
568 bgcolor_bright_night_f, color_change_fraction);
569 m_skycolor_bright_f = m_skycolor_bright_f.getInterpolated(
570 skycolor_bright_night_f, color_change_fraction);
572 m_bgcolor_bright_f = m_bgcolor_bright_f.getInterpolated(
573 bgcolor_bright_normal_f, color_change_fraction);
574 m_skycolor_bright_f = m_skycolor_bright_f.getInterpolated(
575 skycolor_bright_normal_f, color_change_fraction);
578 m_cloudcolor_bright_f = m_cloudcolor_bright_f.getInterpolated(
579 cloudcolor_bright_normal_f, color_change_fraction);
582 m_bgcolor_bright_f = m_bgcolor_bright_f.getInterpolated(
583 bgcolor_bright_indoor_f, color_change_fraction);
584 m_skycolor_bright_f = m_skycolor_bright_f.getInterpolated(
585 bgcolor_bright_indoor_f, color_change_fraction);
586 m_cloudcolor_bright_f = m_cloudcolor_bright_f.getInterpolated(
587 cloudcolor_bright_normal_f, color_change_fraction);
588 m_clouds_visible = false;
591 video::SColor bgcolor_bright = m_bgcolor_bright_f.toSColor();
592 m_bgcolor = video::SColor(
594 bgcolor_bright.getRed() * m_brightness,
595 bgcolor_bright.getGreen() * m_brightness,
596 bgcolor_bright.getBlue() * m_brightness
599 video::SColor skycolor_bright = m_skycolor_bright_f.toSColor();
600 m_skycolor = video::SColor(
602 skycolor_bright.getRed() * m_brightness,
603 skycolor_bright.getGreen() * m_brightness,
604 skycolor_bright.getBlue() * m_brightness
607 // Horizon coloring based on sun and moon direction during sunset and sunrise
608 video::SColor pointcolor = video::SColor(m_bgcolor.getAlpha(), 255, 255, 255);
609 if (m_directional_colored_fog) {
610 if (m_horizon_blend() != 0) {
611 // Calculate hemisphere value from yaw, (inverted in third person front view)
613 if (cam_mode > CAMERA_MODE_THIRD)
615 f32 pointcolor_blend = wrapDegrees_0_360(yaw * dir_factor + 90);
616 if (pointcolor_blend > 180)
617 pointcolor_blend = 360 - pointcolor_blend;
618 pointcolor_blend /= 180;
619 // Bound view angle to determine where transition starts and ends
620 pointcolor_blend = rangelim(1 - pointcolor_blend * 1.375, 0, 1 / 1.375) *
622 // Combine the colors when looking up or down, otherwise turning looks weird
623 pointcolor_blend += (0.5 - pointcolor_blend) *
624 (1 - MYMIN((90 - std::fabs(pitch)) / 90 * 1.5, 1));
625 // Invert direction to match where the sun and moon are rising
626 if (m_time_of_day > 0.5)
627 pointcolor_blend = 1 - pointcolor_blend;
628 // Horizon colors of sun and moon
629 f32 pointcolor_light = rangelim(m_time_brightness * 3, 0.2, 1);
631 video::SColorf pointcolor_sun_f(1, 1, 1, 1);
633 pointcolor_sun_f.r = pointcolor_light *
634 (float)m_materials[3].EmissiveColor.getRed() / 255;
635 pointcolor_sun_f.b = pointcolor_light *
636 (float)m_materials[3].EmissiveColor.getBlue() / 255;
637 pointcolor_sun_f.g = pointcolor_light *
638 (float)m_materials[3].EmissiveColor.getGreen() / 255;
640 pointcolor_sun_f.r = pointcolor_light * 1;
641 pointcolor_sun_f.b = pointcolor_light *
642 (0.25 + (rangelim(m_time_brightness, 0.25, 0.75) - 0.25) * 2 * 0.75);
643 pointcolor_sun_f.g = pointcolor_light * (pointcolor_sun_f.b * 0.375 +
644 (rangelim(m_time_brightness, 0.05, 0.15) - 0.05) * 10 * 0.625);
647 video::SColorf pointcolor_moon_f(0.5 * pointcolor_light,
648 0.6 * pointcolor_light, 0.8 * pointcolor_light, 1);
649 if (m_moon_tonemap) {
650 pointcolor_moon_f.r = pointcolor_light *
651 (float)m_materials[4].EmissiveColor.getRed() / 255;
652 pointcolor_moon_f.b = pointcolor_light *
653 (float)m_materials[4].EmissiveColor.getBlue() / 255;
654 pointcolor_moon_f.g = pointcolor_light *
655 (float)m_materials[4].EmissiveColor.getGreen() / 255;
658 video::SColor pointcolor_sun = pointcolor_sun_f.toSColor();
659 video::SColor pointcolor_moon = pointcolor_moon_f.toSColor();
660 // Calculate the blend color
661 pointcolor = m_mix_scolor(pointcolor_moon, pointcolor_sun, pointcolor_blend);
663 m_bgcolor = m_mix_scolor(m_bgcolor, pointcolor, m_horizon_blend() * 0.5);
664 m_skycolor = m_mix_scolor(m_skycolor, pointcolor, m_horizon_blend() * 0.25);
667 float cloud_direct_brightness = 0;
669 if (!m_directional_colored_fog) {
670 cloud_direct_brightness = time_brightness;
671 if (time_brightness >= 0.2 && time_brightness < 0.7)
672 cloud_direct_brightness *= 1.3;
674 cloud_direct_brightness = MYMIN(m_horizon_blend() * 0.15 +
675 m_time_brightness, 1);
678 cloud_direct_brightness = direct_brightness;
681 m_cloud_brightness = m_cloud_brightness * cloud_color_change_fraction +
682 cloud_direct_brightness * (1.0 - cloud_color_change_fraction);
683 m_cloudcolor_f = video::SColorf(
684 m_cloudcolor_bright_f.r * m_cloud_brightness,
685 m_cloudcolor_bright_f.g * m_cloud_brightness,
686 m_cloudcolor_bright_f.b * m_cloud_brightness,
689 if (m_directional_colored_fog) {
690 m_cloudcolor_f = m_mix_scolorf(m_cloudcolor_f,
691 video::SColorf(pointcolor), m_horizon_blend() * 0.25);