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Draw stars behind the moon (#7928)

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This time correctly, by resetting the 'material' to '1' after moon draw.
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Paramat 2018-12-02 07:25:43 +00:00 committed by GitHub
parent 5dd542401a
commit ff12630bc9
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1 changed files with 86 additions and 81 deletions
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165
src/client/sky.cpp
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@ -366,6 +366,89 @@ void Sky::render()
}
}
// Draw stars before moon to be behind the moon
do {
driver->setMaterial(m_materials[1]);
// Tune values so that stars first appear just after the sun
// disappears over the horizon, and disappear just before the sun
// appears over the horizon.
// Also tune so that stars are at full brightness from time 20000 to
// time 4000.
float starbrightness = MYMAX(0, MYMIN(1,
(0.25 - fabs(wicked_time_of_day < 0.5 ?
wicked_time_of_day : (1.0 - wicked_time_of_day))) * 20));
float f = starbrightness;
float d = 0.007 / 2;
video::SColor starcolor(255, f * 90, f * 90, f * 90);
// Stars are only drawn when brighter than skycolor
if (starcolor.getBlue() < m_skycolor.getBlue())
break;
#ifdef __ANDROID__
u16 indices[SKY_STAR_COUNT * 3];
video::S3DVertex vertices[SKY_STAR_COUNT * 3];
for (u32 i = 0; i < SKY_STAR_COUNT; i++) {
indices[i * 3 + 0] = i * 3 + 0;
indices[i * 3 + 1] = i * 3 + 1;
indices[i * 3 + 2] = i * 3 + 2;
v3f r = m_stars[i];
core::CMatrix4<f32> a;
a.buildRotateFromTo(v3f(0, 1, 0), r);
v3f p = v3f(-d, 1, -d);
v3f p1 = v3f(d, 1, 0);
v3f p2 = v3f(-d, 1, d);
a.rotateVect(p);
a.rotateVect(p1);
a.rotateVect(p2);
p.rotateXYBy(wicked_time_of_day * 360 - 90);
p1.rotateXYBy(wicked_time_of_day * 360 - 90);
p2.rotateXYBy(wicked_time_of_day * 360 - 90);
vertices[i * 3 + 0].Pos = p;
vertices[i * 3 + 0].Color = starcolor;
vertices[i * 3 + 1].Pos = p1;
vertices[i * 3 + 1].Color = starcolor;
vertices[i * 3 + 2].Pos = p2;
vertices[i * 3 + 2].Color = starcolor;
}
driver->drawIndexedTriangleList(vertices, SKY_STAR_COUNT * 3,
indices, SKY_STAR_COUNT);
#else
u16 indices[SKY_STAR_COUNT * 4];
video::S3DVertex vertices[SKY_STAR_COUNT * 4];
for (u32 i = 0; i < SKY_STAR_COUNT; i++) {
indices[i * 4 + 0] = i * 4 + 0;
indices[i * 4 + 1] = i * 4 + 1;
indices[i * 4 + 2] = i * 4 + 2;
indices[i * 4 + 3] = i * 4 + 3;
v3f r = m_stars[i];
core::CMatrix4<f32> a;
a.buildRotateFromTo(v3f(0, 1, 0), r);
v3f p = v3f(-d, 1, -d);
v3f p1 = v3f( d, 1, -d);
v3f p2 = v3f( d, 1, d);
v3f p3 = v3f(-d, 1, d);
a.rotateVect(p);
a.rotateVect(p1);
a.rotateVect(p2);
a.rotateVect(p3);
p.rotateXYBy(wicked_time_of_day * 360 - 90);
p1.rotateXYBy(wicked_time_of_day * 360 - 90);
p2.rotateXYBy(wicked_time_of_day * 360 - 90);
p3.rotateXYBy(wicked_time_of_day * 360 - 90);
vertices[i * 4 + 0].Pos = p;
vertices[i * 4 + 0].Color = starcolor;
vertices[i * 4 + 1].Pos = p1;
vertices[i * 4 + 1].Color = starcolor;
vertices[i * 4 + 2].Pos = p2;
vertices[i * 4 + 2].Color = starcolor;
vertices[i * 4 + 3].Pos = p3;
vertices[i * 4 + 3].Color = starcolor;
}
driver->drawVertexPrimitiveList(vertices, SKY_STAR_COUNT * 4,
indices, SKY_STAR_COUNT, video::EVT_STANDARD,
scene::EPT_QUADS, video::EIT_16BIT);
#endif
} while(false);
// Draw moon
if (wicked_time_of_day < 0.3 || wicked_time_of_day > 0.7) {
if (!m_moon_texture) {
@ -442,88 +525,10 @@ void Sky::render()
}
}
// Draw stars
do {
// Draw far cloudy fog thing below East and West horizons.
// These act as horizons that the sun and moon rise and set over.
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,
(0.25 - fabs(wicked_time_of_day < 0.5 ?
wicked_time_of_day : (1.0 - wicked_time_of_day))) * 20));
float f = starbrightness;
float d = 0.007 / 2;
video::SColor starcolor(255, f * 90, f * 90, f * 90);
// Stars are only drawn when brighter than skycolor
if (starcolor.getBlue() < m_skycolor.getBlue())
break;
#ifdef __ANDROID__
u16 indices[SKY_STAR_COUNT * 3];
video::S3DVertex vertices[SKY_STAR_COUNT * 3];
for (u32 i = 0; i < SKY_STAR_COUNT; i++) {
indices[i * 3 + 0] = i * 3 + 0;
indices[i * 3 + 1] = i * 3 + 1;
indices[i * 3 + 2] = i * 3 + 2;
v3f r = m_stars[i];
core::CMatrix4<f32> a;
a.buildRotateFromTo(v3f(0, 1, 0), r);
v3f p = v3f(-d, 1, -d);
v3f p1 = v3f(d, 1, 0);
v3f p2 = v3f(-d, 1, d);
a.rotateVect(p);
a.rotateVect(p1);
a.rotateVect(p2);
p.rotateXYBy(wicked_time_of_day * 360 - 90);
p1.rotateXYBy(wicked_time_of_day * 360 - 90);
p2.rotateXYBy(wicked_time_of_day * 360 - 90);
vertices[i * 3 + 0].Pos = p;
vertices[i * 3 + 0].Color = starcolor;
vertices[i * 3 + 1].Pos = p1;
vertices[i * 3 + 1].Color = starcolor;
vertices[i * 3 + 2].Pos = p2;
vertices[i * 3 + 2].Color = starcolor;
}
driver->drawIndexedTriangleList(vertices, SKY_STAR_COUNT * 3,
indices, SKY_STAR_COUNT);
#else
u16 indices[SKY_STAR_COUNT * 4];
video::S3DVertex vertices[SKY_STAR_COUNT * 4];
for (u32 i = 0; i < SKY_STAR_COUNT; i++) {
indices[i * 4 + 0] = i * 4 + 0;
indices[i * 4 + 1] = i * 4 + 1;
indices[i * 4 + 2] = i * 4 + 2;
indices[i * 4 + 3] = i * 4 + 3;
v3f r = m_stars[i];
core::CMatrix4<f32> a;
a.buildRotateFromTo(v3f(0, 1, 0), r);
v3f p = v3f(-d, 1, -d);
v3f p1 = v3f( d, 1, -d);
v3f p2 = v3f( d, 1, d);
v3f p3 = v3f(-d, 1, d);
a.rotateVect(p);
a.rotateVect(p1);
a.rotateVect(p2);
a.rotateVect(p3);
p.rotateXYBy(wicked_time_of_day * 360 - 90);
p1.rotateXYBy(wicked_time_of_day * 360 - 90);
p2.rotateXYBy(wicked_time_of_day * 360 - 90);
p3.rotateXYBy(wicked_time_of_day * 360 - 90);
vertices[i * 4 + 0].Pos = p;
vertices[i * 4 + 0].Color = starcolor;
vertices[i * 4 + 1].Pos = p1;
vertices[i * 4 + 1].Color = starcolor;
vertices[i * 4 + 2].Pos = p2;
vertices[i * 4 + 2].Color = starcolor;
vertices[i * 4 + 3].Pos = p3;
vertices[i * 4 + 3].Color = starcolor;
}
driver->drawVertexPrimitiveList(vertices, SKY_STAR_COUNT * 4,
indices, SKY_STAR_COUNT, video::EVT_STANDARD,
scene::EPT_QUADS, video::EIT_16BIT);
#endif
} while(false);
// Draw far cloudy fog thing below east and west horizons
for (u32 j = 0; j < 2; j++) {
video::SColor c = cloudyfogcolor;
vertices[0] = video::S3DVertex(-1, -1.0, -1, 0, 0, 1, c, t, t);