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Slightly alter star appearence time and full brightness time (#7921)

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At sunset:
Stars first appear slightly later, at the time the sun disappears over the horizon,
this fixes seeing dark stars in front of the sun horizon glow texture.
Stars reach full brightness slightly earlier at time 20000, not so excessively long
after sunset.

The above behaviour is also applied at sunrise, but of course, time-inverted.
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Paramat 2018-12-02 04:17:05 +00:00 committed by GitHub
parent 327bad2eaf
commit 5dd542401a
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 7 additions and 3 deletions
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8
src/client/sky.cpp
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@ -445,12 +445,16 @@ void Sky::render()
// Draw stars // Draw stars
do { do {
driver->setMaterial(m_materials[1]); driver->setMaterial(m_materials[1]);
// Tune values, so that stars begin to be drawn at the same time the
// sun disappears over the horizon, and so that star full brightness
// is reached at time 20000, for 8 'hours' of full star brightness.
float starbrightness = MYMAX(0, MYMIN(1, float starbrightness = MYMAX(0, MYMIN(1,
(0.285 - fabs(wicked_time_of_day < 0.5 ? (0.25 - fabs(wicked_time_of_day < 0.5 ?
wicked_time_of_day : (1.0 - wicked_time_of_day))) * 10)); wicked_time_of_day : (1.0 - wicked_time_of_day))) * 20));
float f = starbrightness; float f = starbrightness;
float d = 0.007 / 2; float d = 0.007 / 2;
video::SColor starcolor(255, f * 90, f * 90, f * 90); video::SColor starcolor(255, f * 90, f * 90, f * 90);
// Stars are only drawn when brighter than skycolor
if (starcolor.getBlue() < m_skycolor.getBlue()) if (starcolor.getBlue() < m_skycolor.getBlue())
break; break;
#ifdef __ANDROID__ #ifdef __ANDROID__