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 driver->setMaterial(m_materials[2]);
238 // Draw sunrise/sunset horizon glow texture (textures/base/pack/sunrisebg.png)
241 float mid = wicked_time_of_day < 0.5 ? mid1 : (1.0 - mid1);
242 float a_ = 1.0 - fabs(wicked_time_of_day - mid) * 35.0;
243 float a = easeCurve(MYMAX(0, MYMIN(1, a_)));
244 //std::cerr<<"a_="<<a_<<" a="<<a<<std::endl;
245 video::SColor c(255, 255, 255, 255);
246 float y = -(1.0 - a) * 0.22;
247 vertices[0] = video::S3DVertex(-1, -0.05 + y, -1, 0, 0, 1, c, t, t);
248 vertices[1] = video::S3DVertex( 1, -0.05 + y, -1, 0, 0, 1, c, o, t);
249 vertices[2] = video::S3DVertex( 1, 0.2 + y, -1, 0, 0, 1, c, o, o);
250 vertices[3] = video::S3DVertex(-1, 0.2 + y, -1, 0, 0, 1, c, t, o);
251 for (u32 i = 0; i < 4; i++) {
252 if (wicked_time_of_day < 0.5)
253 // Switch from -Z (south) to +X (east)
254 vertices[i].Pos.rotateXZBy(90);
256 // Switch from -Z (south) to -X (west)
257 vertices[i].Pos.rotateXZBy(-90);
259 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
263 if (wicked_time_of_day > 0.15 && wicked_time_of_day < 0.85) {
264 if (!m_sun_texture) {
265 driver->setMaterial(m_materials[1]);
266 float d = sunsize * 1.7;
267 video::SColor c = suncolor;
268 c.setAlpha(0.05 * 255);
269 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, c, t, t);
270 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, c, o, t);
271 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, c, o, o);
272 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, c, t, o);
273 for (u32 i = 0; i < 4; i++) {
274 // Switch from -Z (south) to +X (east)
275 vertices[i].Pos.rotateXZBy(90);
276 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
278 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
282 c.setAlpha(0.15 * 255);
283 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, c, t, t);
284 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, c, o, t);
285 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, c, o, o);
286 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, c, t, o);
287 for (u32 i = 0; i < 4; i++) {
288 // Switch from -Z (south) to +X (east)
289 vertices[i].Pos.rotateXZBy(90);
290 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
292 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
295 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, suncolor, t, t);
296 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, suncolor, o, t);
297 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, suncolor, o, o);
298 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, suncolor, t, o);
299 for (u32 i = 0; i < 4; i++) {
300 // Switch from -Z (south) to +X (east)
301 vertices[i].Pos.rotateXZBy(90);
302 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
304 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
307 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, suncolor2, t, t);
308 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, suncolor2, o, t);
309 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, suncolor2, o, o);
310 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, suncolor2, t, o);
311 for (u32 i = 0; i < 4; i++) {
312 // Switch from -Z (south) to +X (east)
313 vertices[i].Pos.rotateXZBy(90);
314 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
316 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
318 driver->setMaterial(m_materials[3]);
319 float d = sunsize * 1.7;
322 c = video::SColor (0, 0, 0, 0);
324 c = video::SColor (255, 255, 255, 255);
325 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, c, t, t);
326 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, c, o, t);
327 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, c, o, o);
328 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, c, t, o);
329 for(u32 i = 0; i < 4; i++) {
330 // Switch from -Z (south) to +X (east)
331 vertices[i].Pos.rotateXZBy(90);
332 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
334 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
339 if (wicked_time_of_day < 0.3 || wicked_time_of_day > 0.7) {
340 if (!m_moon_texture) {
341 driver->setMaterial(m_materials[1]);
342 float d = moonsize * 1.9;
343 video::SColor c = mooncolor;
344 c.setAlpha(0.05 * 255);
345 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, c, t, t);
346 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, c, o, t);
347 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, c, o, o);
348 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, c, t, o);
349 for (u32 i = 0; i < 4; i++) {
350 // Switch from -Z (south) to -X (west)
351 vertices[i].Pos.rotateXZBy(-90);
352 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
354 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
358 c.setAlpha(0.15 * 255);
359 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, c, t, t);
360 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, c, o, t);
361 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, c, o, o);
362 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, c, t, o);
363 for (u32 i = 0; i < 4; i++) {
364 // Switch from -Z (south) to -X (west)
365 vertices[i].Pos.rotateXZBy(-90);
366 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
368 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
371 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, mooncolor, t, t);
372 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, mooncolor, o, t);
373 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, mooncolor, o, o);
374 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, mooncolor, t, o);
375 for (u32 i = 0; i < 4; i++) {
376 // Switch from -Z (south) to -X (west)
377 vertices[i].Pos.rotateXZBy(-90);
378 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
380 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
382 float d2 = moonsize * 0.6;
383 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, mooncolor2, t, t);
384 vertices[1] = video::S3DVertex( d2,-d, -1, 0, 0, 1, mooncolor2, o, t);
385 vertices[2] = video::S3DVertex( d2, d2, -1, 0, 0, 1, mooncolor2, o, o);
386 vertices[3] = video::S3DVertex(-d, d2, -1, 0, 0, 1, mooncolor2, t, o);
387 for (u32 i = 0; i < 4; i++) {
388 // Switch from -Z (south) to -X (west)
389 vertices[i].Pos.rotateXZBy(-90);
390 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
392 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
394 driver->setMaterial(m_materials[4]);
395 float d = moonsize * 1.9;
398 c = video::SColor (0, 0, 0, 0);
400 c = video::SColor (255, 255, 255, 255);
401 vertices[0] = video::S3DVertex(-d, -d, -1, 0, 0, 1, c, t, t);
402 vertices[1] = video::S3DVertex( d, -d, -1, 0, 0, 1, c, o, t);
403 vertices[2] = video::S3DVertex( d, d, -1, 0, 0, 1, c, o, o);
404 vertices[3] = video::S3DVertex(-d, d, -1, 0, 0, 1, c, t, o);
405 for (u32 i = 0; i < 4; i++) {
406 // Switch from -Z (south) to -X (west)
407 vertices[i].Pos.rotateXZBy(-90);
408 vertices[i].Pos.rotateXYBy(wicked_time_of_day * 360 - 90);
410 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
415 driver->setMaterial(m_materials[1]);
417 float starbrightness = MYMAX(0, MYMIN(1,
418 (0.285 - fabs(wicked_time_of_day < 0.5 ?
419 wicked_time_of_day : (1.0 - wicked_time_of_day))) * 10));
420 float f = starbrightness;
422 video::SColor starcolor(255, f * 90, f * 90, f * 90);
423 if (starcolor.getBlue() < m_skycolor.getBlue())
425 u16 indices[SKY_STAR_COUNT * 4];
426 video::S3DVertex vertices[SKY_STAR_COUNT * 4];
427 for (u32 i = 0; i < SKY_STAR_COUNT; i++) {
428 indices[i * 4 + 0] = i * 4 + 0;
429 indices[i * 4 + 1] = i * 4 + 1;
430 indices[i * 4 + 2] = i * 4 + 2;
431 indices[i * 4 + 3] = i * 4 + 3;
433 core::CMatrix4<f32> a;
434 a.buildRotateFromTo(v3f(0, 1, 0), v3f(d, 1 + d / 2, 0));
437 a.buildRotateFromTo(v3f(0, 1, 0), v3f(d, 1, d));
440 a.buildRotateFromTo(v3f(0, 1, 0), v3f(0, 1 - d / 2, d));
443 p.rotateXYBy(wicked_time_of_day * 360 - 90);
444 p1.rotateXYBy(wicked_time_of_day * 360 - 90);
445 p2.rotateXYBy(wicked_time_of_day * 360 - 90);
446 p3.rotateXYBy(wicked_time_of_day * 360 - 90);
447 vertices[i * 4 + 0].Pos = p;
448 vertices[i * 4 + 0].Color = starcolor;
449 vertices[i * 4 + 1].Pos = p1;
450 vertices[i * 4 + 1].Color = starcolor;
451 vertices[i * 4 + 2].Pos = p2;
452 vertices[i * 4 + 2].Color = starcolor;
453 vertices[i * 4 + 3].Pos = p3;
454 vertices[i * 4 + 3].Color = starcolor;
456 driver->drawVertexPrimitiveList(vertices, SKY_STAR_COUNT * 4,
457 indices, SKY_STAR_COUNT, video::EVT_STANDARD,
458 scene::EPT_QUADS, video::EIT_16BIT);
461 // Draw far cloudy fog thing below east and west horizons
462 for (u32 j = 0; j < 2; j++) {
463 video::SColor c = cloudyfogcolor;
464 vertices[0] = video::S3DVertex(-1, -1.0, -1, 0, 0, 1, c, t, t);
465 vertices[1] = video::S3DVertex( 1, -1.0, -1, 0, 0, 1, c, o, t);
466 vertices[2] = video::S3DVertex( 1, -0.02, -1, 0, 0, 1, c, o, o);
467 vertices[3] = video::S3DVertex(-1, -0.02, -1, 0, 0, 1, c, t, o);
468 for (u32 i = 0; i < 4; i++) {
469 //if (wicked_time_of_day < 0.5)
471 // Switch from -Z (south) to +X (east)
472 vertices[i].Pos.rotateXZBy(90);
474 // Switch from -Z (south) to -X (west)
475 vertices[i].Pos.rotateXZBy(-90);
477 driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
483 void Sky::update(float time_of_day, float time_brightness,
484 float direct_brightness, bool sunlight_seen,
485 CameraMode cam_mode, float yaw, float pitch)
487 // Stabilize initial brightness and color values by flooding updates
488 if (m_first_update) {
489 /*dstream<<"First update with time_of_day="<<time_of_day
490 <<" time_brightness="<<time_brightness
491 <<" direct_brightness="<<direct_brightness
492 <<" sunlight_seen="<<sunlight_seen<<std::endl;*/
493 m_first_update = false;
494 for (u32 i = 0; i < 100; i++) {
495 update(time_of_day, time_brightness, direct_brightness,
496 sunlight_seen, cam_mode, yaw, pitch);
501 m_time_of_day = time_of_day;
502 m_time_brightness = time_brightness;
503 m_sunlight_seen = sunlight_seen;
505 bool is_dawn = (time_brightness >= 0.20 && time_brightness < 0.35);
510 video::SColorf bgcolor_bright_normal_f(170. / 255, 200. / 255, 230. / 255, 1.0);
511 video::SColorf bgcolor_bright_dawn_f(0.666, 200. / 255 * 0.7, 230. / 255 * 0.5, 1.0);
512 video::SColorf bgcolor_bright_dawn_f(0.666, 0.549, 0.220, 1.0);
513 video::SColorf bgcolor_bright_dawn_f(0.666 * 1.2, 0.549 * 1.0, 0.220 * 1.0, 1.0);
514 video::SColorf bgcolor_bright_dawn_f(0.666 * 1.2, 0.549 * 1.0, 0.220 * 1.2, 1.0);
516 video::SColorf cloudcolor_bright_dawn_f(1.0, 0.591, 0.4);
517 video::SColorf cloudcolor_bright_dawn_f(1.0, 0.65, 0.44);
518 video::SColorf cloudcolor_bright_dawn_f(1.0, 0.7, 0.5);
521 video::SColorf bgcolor_bright_normal_f = video::SColor(255, 155, 193, 240);
522 video::SColorf bgcolor_bright_indoor_f = video::SColor(255, 100, 100, 100);
523 video::SColorf bgcolor_bright_dawn_f = video::SColor(255, 186, 193, 240);
524 video::SColorf bgcolor_bright_night_f = video::SColor(255, 64, 144, 255);
526 video::SColorf skycolor_bright_normal_f = video::SColor(255, 140, 186, 250);
527 video::SColorf skycolor_bright_dawn_f = video::SColor(255, 180, 186, 250);
528 video::SColorf skycolor_bright_night_f = video::SColor(255, 0, 107, 255);
530 // pure white: becomes "diffuse light component" for clouds
531 video::SColorf cloudcolor_bright_normal_f = video::SColor(255, 255, 255, 255);
532 // dawn-factoring version of pure white (note: R is above 1.0)
533 video::SColorf cloudcolor_bright_dawn_f(255.0f/240.0f, 223.0f/240.0f, 191.0f/255.0f);
535 float cloud_color_change_fraction = 0.95;
537 if (fabs(time_brightness - m_brightness) < 0.2) {
538 m_brightness = m_brightness * 0.95 + time_brightness * 0.05;
540 m_brightness = m_brightness * 0.80 + time_brightness * 0.20;
541 cloud_color_change_fraction = 0.0;
544 if (direct_brightness < m_brightness)
545 m_brightness = m_brightness * 0.95 + direct_brightness * 0.05;
547 m_brightness = m_brightness * 0.98 + direct_brightness * 0.02;
550 m_clouds_visible = true;
551 float color_change_fraction = 0.98;
553 if (is_dawn) { // Dawn
554 m_bgcolor_bright_f = m_bgcolor_bright_f.getInterpolated(
555 bgcolor_bright_dawn_f, color_change_fraction);
556 m_skycolor_bright_f = m_skycolor_bright_f.getInterpolated(
557 skycolor_bright_dawn_f, color_change_fraction);
558 m_cloudcolor_bright_f = m_cloudcolor_bright_f.getInterpolated(
559 cloudcolor_bright_dawn_f, color_change_fraction);
561 if (time_brightness < 0.07) { // Night
562 m_bgcolor_bright_f = m_bgcolor_bright_f.getInterpolated(
563 bgcolor_bright_night_f, color_change_fraction);
564 m_skycolor_bright_f = m_skycolor_bright_f.getInterpolated(
565 skycolor_bright_night_f, color_change_fraction);
567 m_bgcolor_bright_f = m_bgcolor_bright_f.getInterpolated(
568 bgcolor_bright_normal_f, color_change_fraction);
569 m_skycolor_bright_f = m_skycolor_bright_f.getInterpolated(
570 skycolor_bright_normal_f, color_change_fraction);
573 m_cloudcolor_bright_f = m_cloudcolor_bright_f.getInterpolated(
574 cloudcolor_bright_normal_f, color_change_fraction);
577 m_bgcolor_bright_f = m_bgcolor_bright_f.getInterpolated(
578 bgcolor_bright_indoor_f, color_change_fraction);
579 m_skycolor_bright_f = m_skycolor_bright_f.getInterpolated(
580 bgcolor_bright_indoor_f, color_change_fraction);
581 m_cloudcolor_bright_f = m_cloudcolor_bright_f.getInterpolated(
582 cloudcolor_bright_normal_f, color_change_fraction);
583 m_clouds_visible = false;
586 video::SColor bgcolor_bright = m_bgcolor_bright_f.toSColor();
587 m_bgcolor = video::SColor(
589 bgcolor_bright.getRed() * m_brightness,
590 bgcolor_bright.getGreen() * m_brightness,
591 bgcolor_bright.getBlue() * m_brightness
594 video::SColor skycolor_bright = m_skycolor_bright_f.toSColor();
595 m_skycolor = video::SColor(
597 skycolor_bright.getRed() * m_brightness,
598 skycolor_bright.getGreen() * m_brightness,
599 skycolor_bright.getBlue() * m_brightness
602 // Horizon coloring based on sun and moon direction during sunset and sunrise
603 video::SColor pointcolor = video::SColor(m_bgcolor.getAlpha(), 255, 255, 255);
604 if (m_directional_colored_fog) {
605 if (m_horizon_blend() != 0) {
606 // Calculate hemisphere value from yaw, (inverted in third person front view)
608 if (cam_mode > CAMERA_MODE_THIRD)
610 f32 pointcolor_blend = wrapDegrees_0_360(yaw * dir_factor + 90);
611 if (pointcolor_blend > 180)
612 pointcolor_blend = 360 - pointcolor_blend;
613 pointcolor_blend /= 180;
614 // Bound view angle to determine where transition starts and ends
615 pointcolor_blend = rangelim(1 - pointcolor_blend * 1.375, 0, 1 / 1.375) *
617 // Combine the colors when looking up or down, otherwise turning looks weird
618 pointcolor_blend += (0.5 - pointcolor_blend) *
619 (1 - MYMIN((90 - std::fabs(pitch)) / 90 * 1.5, 1));
620 // Invert direction to match where the sun and moon are rising
621 if (m_time_of_day > 0.5)
622 pointcolor_blend = 1 - pointcolor_blend;
623 // Horizon colors of sun and moon
624 f32 pointcolor_light = rangelim(m_time_brightness * 3, 0.2, 1);
626 video::SColorf pointcolor_sun_f(1, 1, 1, 1);
628 pointcolor_sun_f.r = pointcolor_light *
629 (float)m_materials[3].EmissiveColor.getRed() / 255;
630 pointcolor_sun_f.b = pointcolor_light *
631 (float)m_materials[3].EmissiveColor.getBlue() / 255;
632 pointcolor_sun_f.g = pointcolor_light *
633 (float)m_materials[3].EmissiveColor.getGreen() / 255;
635 pointcolor_sun_f.r = pointcolor_light * 1;
636 pointcolor_sun_f.b = pointcolor_light *
637 (0.25 + (rangelim(m_time_brightness, 0.25, 0.75) - 0.25) * 2 * 0.75);
638 pointcolor_sun_f.g = pointcolor_light * (pointcolor_sun_f.b * 0.375 +
639 (rangelim(m_time_brightness, 0.05, 0.15) - 0.05) * 10 * 0.625);
642 video::SColorf pointcolor_moon_f(0.5 * pointcolor_light,
643 0.6 * pointcolor_light, 0.8 * pointcolor_light, 1);
644 if (m_moon_tonemap) {
645 pointcolor_moon_f.r = pointcolor_light *
646 (float)m_materials[4].EmissiveColor.getRed() / 255;
647 pointcolor_moon_f.b = pointcolor_light *
648 (float)m_materials[4].EmissiveColor.getBlue() / 255;
649 pointcolor_moon_f.g = pointcolor_light *
650 (float)m_materials[4].EmissiveColor.getGreen() / 255;
653 video::SColor pointcolor_sun = pointcolor_sun_f.toSColor();
654 video::SColor pointcolor_moon = pointcolor_moon_f.toSColor();
655 // Calculate the blend color
656 pointcolor = m_mix_scolor(pointcolor_moon, pointcolor_sun, pointcolor_blend);
658 m_bgcolor = m_mix_scolor(m_bgcolor, pointcolor, m_horizon_blend() * 0.5);
659 m_skycolor = m_mix_scolor(m_skycolor, pointcolor, m_horizon_blend() * 0.25);
662 float cloud_direct_brightness = 0;
664 if (!m_directional_colored_fog) {
665 cloud_direct_brightness = time_brightness;
666 if (time_brightness >= 0.2 && time_brightness < 0.7)
667 cloud_direct_brightness *= 1.3;
669 cloud_direct_brightness = MYMIN(m_horizon_blend() * 0.15 +
670 m_time_brightness, 1);
673 cloud_direct_brightness = direct_brightness;
676 m_cloud_brightness = m_cloud_brightness * cloud_color_change_fraction +
677 cloud_direct_brightness * (1.0 - cloud_color_change_fraction);
678 m_cloudcolor_f = video::SColorf(
679 m_cloudcolor_bright_f.r * m_cloud_brightness,
680 m_cloudcolor_bright_f.g * m_cloud_brightness,
681 m_cloudcolor_bright_f.b * m_cloud_brightness,
684 if (m_directional_colored_fog) {
685 m_cloudcolor_f = m_mix_scolorf(m_cloudcolor_f,
686 video::SColorf(pointcolor), m_horizon_blend() * 0.25);