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Add documentation of sun/moon orientation/scale differences (#12145)

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DS 2022-09-06 12:21:55 +02:00 committed by GitHub
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3 changed files with 29 additions and 15 deletions
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18
doc/lua_api.txt
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@ -4710,13 +4710,13 @@ Privileges
Privileges provide a means for server administrators to give certain players
access to special abilities in the engine, games or mods.
For example, game moderators may need to travel instantly to any place in the world,
For example, game moderators may need to travel instantly to any place in the world,
this ability is implemented in `/teleport` command which requires `teleport` privilege.
Registering privileges
----------------------
A mod can register a custom privilege using `minetest.register_privilege` function
A mod can register a custom privilege using `minetest.register_privilege` function
to give server administrators fine-grained access control over mod functionality.
For consistency and practical reasons, privileges should strictly increase the abilities of the user.
@ -4725,7 +4725,7 @@ Do not register custom privileges that e.g. restrict the player from certain in-
Checking privileges
-------------------
A mod can call `minetest.check_player_privs` to test whether a player has privileges
A mod can call `minetest.check_player_privs` to test whether a player has privileges
to perform an operation.
Also, when registering a chat command with `minetest.register_chatcommand` a mod can
declare privileges that the command requires using the `privs` field of the command
@ -4789,7 +4789,7 @@ Minetest includes the following settings to control behavior of privileges:
* `default_privs`: defines privileges granted to new players.
* `basic_privs`: defines privileges that can be granted/revoked by players having
the `basic_privs` privilege. This can be used, for example, to give
the `basic_privs` privilege. This can be used, for example, to give
limited moderation powers to selected users.
'minetest' namespace reference
@ -7208,6 +7208,8 @@ child will follow movement and rotation of that bone.
(default: `true`)
* `texture`: A regular texture for the sun. Setting to `""`
will re-enable the mesh sun. (default: "sun.png", if it exists)
The texture appears non-rotated at sunrise and rotated 180 degrees
(upside down) at sunset.
* `tonemap`: A 512x1 texture containing the tonemap for the sun
(default: `"sun_tonemap.png"`)
* `sunrise`: A regular texture for the sunrise texture.
@ -7215,6 +7217,8 @@ child will follow movement and rotation of that bone.
* `sunrise_visible`: Boolean for whether the sunrise texture is visible.
(default: `true`)
* `scale`: Float controlling the overall size of the sun. (default: `1`)
Note: For legacy reasons, the sun is bigger than the moon by a factor
of about `1.57` for equal `scale` values.
* `get_sun()`: returns a table with the current sun parameters as in
`set_sun`.
* `set_moon(moon_parameters)`:
@ -7224,11 +7228,15 @@ child will follow movement and rotation of that bone.
(default: `true`)
* `texture`: A regular texture for the moon. Setting to `""`
will re-enable the mesh moon. (default: `"moon.png"`, if it exists)
Note: Relative to the sun, the moon texture is rotated by 180°.
The texture appears non-rotated at sunrise / moonset and rotated 180
degrees (upside down) at sunset / moonrise.
Note: Relative to the sun, the moon texture is hence rotated by 180°.
You can use the `^[transformR180` texture modifier to achieve the same orientation.
* `tonemap`: A 512x1 texture containing the tonemap for the moon
(default: `"moon_tonemap.png"`)
* `scale`: Float controlling the overall size of the moon (default: `1`)
Note: For legacy reasons, the sun is bigger than the moon by a factor
of about `1.57` for equal `scale` values.
* `get_moon()`: returns a table with the current moon parameters as in
`set_moon`.
* `set_stars(star_parameters)`:

22
src/client/sky.cpp
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@ -142,7 +142,6 @@ void Sky::render()
driver->setTransform(video::ETS_WORLD, translate * scale);
if (m_sunlight_seen) {
float sunsize = 0.07;
video::SColorf suncolor_f(1, 1, 0, 1);
//suncolor_f.r = 1;
//suncolor_f.g = MYMAX(0.3, MYMIN(1.0, 0.7 + m_time_brightness * 0.5));
@ -156,7 +155,6 @@ void Sky::render()
suncolor_f.g = MYMAX(0.3, MYMIN(1.0, 0.85 + m_time_brightness * 0.5));
suncolor_f.b = MYMAX(0.0, m_brightness);
float moonsize = 0.04;
video::SColorf mooncolor_f(0.50, 0.57, 0.65, 1);
video::SColorf mooncolor2_f(0.85, 0.875, 0.9, 1);
@ -294,11 +292,11 @@ void Sky::render()
// Draw sun
if (m_sun_params.visible)
draw_sun(driver, sunsize, suncolor, suncolor2, wicked_time_of_day);
draw_sun(driver, suncolor, suncolor2, wicked_time_of_day);
// Draw moon
if (m_moon_params.visible)
draw_moon(driver, moonsize, mooncolor, mooncolor2, wicked_time_of_day);
draw_moon(driver, mooncolor, mooncolor2, wicked_time_of_day);
// Draw far cloudy fog thing below all horizons in front of sun, moon
// and stars.
@ -573,16 +571,18 @@ v3f Sky::getMoonDirection()
return getSkyBodyPosition(270, getWickedTimeOfDay(m_time_of_day) * 360 - 90, m_sky_body_orbit_tilt);
}
void Sky::draw_sun(video::IVideoDriver *driver, float sunsize, const video::SColor &suncolor,
void Sky::draw_sun(video::IVideoDriver *driver, const video::SColor &suncolor,
const video::SColor &suncolor2, float wicked_time_of_day)
/* Draw sun in the sky.
* driver: Video driver object used to draw
* sunsize: the default size of the sun
* suncolor: main sun color
* suncolor2: second sun color
* wicked_time_of_day: current time of day, to know where should be the sun in the sky
*/
{
// A magic number that contributes to the ratio 1.57 sun/moon size difference.
constexpr float sunsize = 0.07;
static const u16 indices[] = {0, 1, 2, 0, 2, 3};
std::array<video::S3DVertex, 4> vertices;
if (!m_sun_texture) {
@ -605,6 +605,8 @@ void Sky::draw_sun(video::IVideoDriver *driver, float sunsize, const video::SCol
}
} else {
driver->setMaterial(m_materials[3]);
// Another magic number that contributes to the ratio 1.57 sun/moon size
// difference.
float d = (sunsize * 1.7) * m_sun_params.scale;
video::SColor c;
if (m_sun_tonemap)
@ -618,18 +620,20 @@ void Sky::draw_sun(video::IVideoDriver *driver, float sunsize, const video::SCol
}
void Sky::draw_moon(video::IVideoDriver *driver, float moonsize, const video::SColor &mooncolor,
void Sky::draw_moon(video::IVideoDriver *driver, const video::SColor &mooncolor,
const video::SColor &mooncolor2, float wicked_time_of_day)
/*
* Draw moon in the sky.
* driver: Video driver object used to draw
* moonsize: the default size of the moon
* mooncolor: main moon color
* mooncolor2: second moon color
* wicked_time_of_day: current time of day, to know where should be the moon in
* the sky
*/
{
// A magic number that contributes to the ratio 1.57 sun/moon size difference.
constexpr float moonsize = 0.04;
static const u16 indices[] = {0, 1, 2, 0, 2, 3};
std::array<video::S3DVertex, 4> vertices;
if (!m_moon_texture) {
@ -658,6 +662,8 @@ void Sky::draw_moon(video::IVideoDriver *driver, float moonsize, const video::SC
}
} else {
driver->setMaterial(m_materials[4]);
// Another magic number that contributes to the ratio 1.57 sun/moon size
// difference.
float d = (moonsize * 1.9) * m_moon_params.scale;
video::SColor c;
if (m_moon_tonemap)

4
src/client/sky.h
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@ -200,9 +200,9 @@ private:
void updateStars();
void draw_sun(video::IVideoDriver *driver, float sunsize, const video::SColor &suncolor,
void draw_sun(video::IVideoDriver *driver, const video::SColor &suncolor,
const video::SColor &suncolor2, float wicked_time_of_day);
void draw_moon(video::IVideoDriver *driver, float moonsize, const video::SColor &mooncolor,
void draw_moon(video::IVideoDriver *driver, const video::SColor &mooncolor,
const video::SColor &mooncolor2, float wicked_time_of_day);
void draw_sky_body(std::array<video::S3DVertex, 4> &vertices,
float pos_1, float pos_2, const video::SColor &c);