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Fog effect when camera is inside cloud

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Fixes issue #3576

* Clouds now take camera position as 3D, not 2D

* Cloud grid filling extracted to gridFilled method

* Clouds detect whether camera is inside cloud

* Camera in cloud changes fog by overriding sky colors
  with cloud color

* Sun, moon and stars can be temporarily disabled
  with setBodiesVisible

* Disabling fog also disables all "inside cloud" behaviors
This commit is contained in:
Ben Deutsch 2017-05-07 18:41:47 +02:00 • committed by SmallJoker
parent 61a3de42fd
commit 6bedb6de40
7 changed files with 84 additions and 30 deletions
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7
src/sky.cpp
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@ -233,6 +233,10 @@ void Sky::render()
vertices[3] = video::S3DVertex(-1, -1.0, 1, 0, 1, 0, c, t, o);
driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
// If sun, moon and stars are (temporarily) disabled, abort here
if (!m_bodies_visible)
return;
driver->setMaterial(m_materials[2]);
// Draw sunrise/sunset horizon glow texture (textures/base/pack/sunrisebg.png)
@ -412,8 +416,8 @@ void Sky::render()
}
// Draw stars
driver->setMaterial(m_materials[1]);
do {
driver->setMaterial(m_materials[1]);
float starbrightness = MYMAX(0, MYMIN(1,
(0.285 - fabs(wicked_time_of_day < 0.5 ?
wicked_time_of_day : (1.0 - wicked_time_of_day))) * 10));
@ -501,6 +505,7 @@ void Sky::update(float time_of_day, float time_brightness,
m_time_of_day = time_of_day;
m_time_brightness = time_brightness;
m_sunlight_seen = sunlight_seen;
m_bodies_visible = true;
bool is_dawn = (time_brightness >= 0.20 && time_brightness < 0.35);