/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2020 numzero, Lobachevskiy Vitaliy <numzer0@yandex.ru>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
#include "config.h"
using namespace irr::core;
-Sky::Sky(s32 id, ITextureSource *tsrc) :
- scene::ISceneNode(RenderingEngine::get_scene_manager()->getRootSceneNode(),
- RenderingEngine::get_scene_manager(), id)
-{
- setAutomaticCulling(scene::EAC_OFF);
- m_box.MaxEdge.set(0, 0, 0);
- m_box.MinEdge.set(0, 0, 0);
-
- // Create material
-
+static video::SMaterial baseMaterial() {
video::SMaterial mat;
mat.Lighting = false;
#if ENABLE_GLES
mat.TextureLayer[0].TextureWrapU = video::ETC_CLAMP_TO_EDGE;
mat.TextureLayer[0].TextureWrapV = video::ETC_CLAMP_TO_EDGE;
mat.BackfaceCulling = false;
+ return mat;
+};
+
+Sky::Sky(s32 id, ITextureSource *tsrc) :
+ scene::ISceneNode(RenderingEngine::get_scene_manager()->getRootSceneNode(),
+ RenderingEngine::get_scene_manager(), id)
+{
+ setAutomaticCulling(scene::EAC_OFF);
+ m_box.MaxEdge.set(0, 0, 0);
+ m_box.MinEdge.set(0, 0, 0);
- m_materials[0] = mat;
+ // Create materials
- m_materials[1] = mat;
+ m_materials[0] = baseMaterial();
+ m_materials[0].MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
+ m_materials[0].Lighting = true;
+ m_materials[0].ColorMaterial = video::ECM_NONE;
+
+ m_materials[1] = baseMaterial();
//m_materials[1].MaterialType = video::EMT_TRANSPARENT_VERTEX_ALPHA;
m_materials[1].MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
- m_materials[2] = mat;
+ m_materials[2] = baseMaterial();
m_materials[2].setTexture(0, tsrc->getTextureForMesh("sunrisebg.png"));
m_materials[2].MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
//m_materials[2].MaterialType = video::EMT_TRANSPARENT_ADD_COLOR;
tsrc->getTexture(m_moon_params.tonemap) : NULL;
if (m_sun_texture) {
- m_materials[3] = mat;
+ m_materials[3] = baseMaterial();
m_materials[3].setTexture(0, m_sun_texture);
m_materials[3].MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
// Disables texture filtering
m_materials[3].Lighting = true;
}
if (m_moon_texture) {
- m_materials[4] = mat;
+ m_materials[4] = baseMaterial();
m_materials[4].setTexture(0, m_moon_texture);
m_materials[4].MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
// Disables texture filtering
}
for (int i = 5; i < 11; i++) {
- m_materials[i] = mat;
+ m_materials[i] = baseMaterial();
m_materials[i].Lighting = true;
m_materials[i].MaterialType = video::EMT_SOLID;
}
if (m_visible) {
driver->setMaterial(m_materials[1]);
for (u32 j = 0; j < 4; j++) {
- video::SColor c = cloudyfogcolor.getInterpolated(m_skycolor, 0.45);
- vertices[0] = video::S3DVertex(-1, 0.08, -1, 0, 0, 1, c, t, t);
- vertices[1] = video::S3DVertex( 1, 0.08, -1, 0, 0, 1, c, o, t);
- vertices[2] = video::S3DVertex( 1, 0.12, -1, 0, 0, 1, c, o, o);
- vertices[3] = video::S3DVertex(-1, 0.12, -1, 0, 0, 1, c, t, o);
- for (video::S3DVertex &vertex : vertices) {
- if (j == 0)
- // Don't switch
- {}
- else if (j == 1)
- // Switch from -Z (south) to +X (east)
- vertex.Pos.rotateXZBy(90);
- else if (j == 2)
- // Switch from -Z (south) to -X (west)
- vertex.Pos.rotateXZBy(-90);
- else
- // Switch from -Z (south) to +Z (north)
- vertex.Pos.rotateXZBy(-180);
- }
- driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
- }
-
- // Draw far cloudy fog thing at and below all horizons
- for (u32 j = 0; j < 4; j++) {
- video::SColor c = cloudyfogcolor;
- vertices[0] = video::S3DVertex(-1, -1.0, -1, 0, 0, 1, c, t, t);
- vertices[1] = video::S3DVertex( 1, -1.0, -1, 0, 0, 1, c, o, t);
- vertices[2] = video::S3DVertex( 1, 0.08, -1, 0, 0, 1, c, o, o);
- vertices[3] = video::S3DVertex(-1, 0.08, -1, 0, 0, 1, c, t, o);
+ vertices[0] = video::S3DVertex(-1, -0.02, -1, 0, 0, 1, m_bgcolor, t, t);
+ vertices[1] = video::S3DVertex( 1, -0.02, -1, 0, 0, 1, m_bgcolor, o, t);
+ vertices[2] = video::S3DVertex( 1, 0.45, -1, 0, 0, 1, m_skycolor, o, o);
+ vertices[3] = video::S3DVertex(-1, 0.45, -1, 0, 0, 1, m_skycolor, t, o);
for (video::S3DVertex &vertex : vertices) {
if (j == 0)
// Don't switch
pointcolor_sun_f.g = pointcolor_light *
(float)m_materials[3].EmissiveColor.getGreen() / 255;
} else if (!m_default_tint) {
- pointcolor_sun_f = m_sky_params.sun_tint;
+ pointcolor_sun_f = m_sky_params.fog_sun_tint;
} else {
pointcolor_sun_f.r = pointcolor_light * 1;
pointcolor_sun_f.b = pointcolor_light *
);
} else {
pointcolor_moon_f = video::SColorf(
- (m_sky_params.moon_tint.getRed() / 255) * pointcolor_light,
- (m_sky_params.moon_tint.getGreen() / 255) * pointcolor_light,
- (m_sky_params.moon_tint.getBlue() / 255) * pointcolor_light,
+ (m_sky_params.fog_moon_tint.getRed() / 255) * pointcolor_light,
+ (m_sky_params.fog_moon_tint.getGreen() / 255) * pointcolor_light,
+ (m_sky_params.fog_moon_tint.getBlue() / 255) * pointcolor_light,
1
);
}
c = video::SColor(255, 255, 255, 255);
draw_sky_body(vertices, -d, d, c);
place_sky_body(vertices, -90, wicked_time_of_day * 360 - 90);
- driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
+ driver->drawIndexedTriangleList(&vertices[0], 4, indices, 2);
}
}
void Sky::draw_stars(video::IVideoDriver * driver, float wicked_time_of_day)
{
- 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.
// to time 4000.
float tod = wicked_time_of_day < 0.5f ? wicked_time_of_day : (1.0f - wicked_time_of_day);
- float starbrightness = clamp((0.25f - fabsf(tod)) * 20.0f, 0.0f, 1.0f);
-
- float f = starbrightness;
- float d = (0.006 / 2) * m_star_params.scale;
-
- video::SColor starcolor = m_star_params.starcolor;
- starcolor.setAlpha(f * m_star_params.starcolor.getAlpha());
-
- // Stars are only drawn when not fully transparent
- if (m_star_params.starcolor.getAlpha() < 1)
+ float starbrightness = (0.25f - fabsf(tod)) * 20.0f;
+ int alpha = clamp<int>(starbrightness * m_star_params.starcolor.getAlpha(), 0, 255);
+ if (!alpha) // Stars are only drawn when not fully transparent
return;
-#if ENABLE_GLES
- u16 *indices = new u16[m_star_count * 3];
- video::S3DVertex *vertices =
- new video::S3DVertex[m_star_count * 3];
- for (u32 i = 0; i < m_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.data(), m_star_count * 3,
- indices.data(), m_star_count);
- delete[] indices;
- delete[] vertices;
-#else
- u16 *indices = new u16[m_star_params.count * 4];
- video::S3DVertex *vertices =
- new video::S3DVertex[m_star_params.count * 4];
- for (u32 i = 0; i < m_star_params.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, m_star_params.count * 4,
- indices, m_star_params.count, video::EVT_STANDARD,
- scene::EPT_QUADS, video::EIT_16BIT);
- delete[] indices;
- delete[] vertices;
-#endif
+
+ m_materials[0].DiffuseColor = video::SColor(alpha, 0, 0, 0);
+ m_materials[0].EmissiveColor = m_star_params.starcolor;
+ auto sky_rotation = core::matrix4().setRotationAxisRadians(2.0f * M_PI * (wicked_time_of_day - 0.25f), v3f(0.0f, 0.0f, 1.0f));
+ auto world_matrix = driver->getTransform(video::ETS_WORLD);
+ driver->setTransform(video::ETS_WORLD, world_matrix * sky_rotation);
+ driver->setMaterial(m_materials[0]);
+ driver->drawMeshBuffer(m_stars.get());
+ driver->setTransform(video::ETS_WORLD, world_matrix);
}
void Sky::draw_sky_body(std::array<video::S3DVertex, 4> &vertices, float pos_1, float pos_2, const video::SColor &c)
m_sun_texture = tsrc->getTextureForMesh(m_sun_params.texture);
if (m_sun_texture) {
- m_materials[3] = m_materials[0];
+ m_materials[3] = baseMaterial();
m_materials[3].setTexture(0, m_sun_texture);
m_materials[3].MaterialType = video::
EMT_TRANSPARENT_ALPHA_CHANNEL;
}
}
-void Sky::setSunriseTexture(std::string sunglow_texture,
+void Sky::setSunriseTexture(std::string sunglow_texture,
ITextureSource* tsrc)
{
// Ignore matching textures (with modifiers) entirely.
);
}
-void Sky::setMoonTexture(std::string moon_texture,
+void Sky::setMoonTexture(std::string moon_texture,
std::string moon_tonemap, ITextureSource *tsrc)
{
// Ignore matching textures (with modifiers) entirely,
m_moon_texture = tsrc->getTextureForMesh(m_moon_params.texture);
if (m_moon_texture) {
- m_materials[4] = m_materials[0];
+ m_materials[4] = baseMaterial();
m_materials[4].setTexture(0, m_moon_texture);
m_materials[4].MaterialType = video::
EMT_TRANSPARENT_ALPHA_CHANNEL;
void Sky::setStarCount(u16 star_count, bool force_update)
{
- // Force updating star count at game init.
- if (force_update) {
+ // Allow force updating star count at game init.
+ if (m_star_params.count != star_count || force_update) {
m_star_params.count = star_count;
- m_stars.clear();
- // Rebuild the stars surrounding the camera
- for (u16 i = 0; i < star_count; i++) {
- v3f star = v3f(
- myrand_range(-10000, 10000),
- myrand_range(-10000, 10000),
- myrand_range(-10000, 10000)
- );
-
- star.normalize();
- m_stars.emplace_back(star);
- }
- // Ignore changing star count if the new value is identical
- } else if (m_star_params.count == star_count)
- return;
- else {
- m_star_params.count = star_count;
- m_stars.clear();
- // Rebuild the stars surrounding the camera
- for (u16 i = 0; i < star_count; i++) {
- v3f star = v3f(
- myrand_range(-10000, 10000),
- myrand_range(-10000, 10000),
- myrand_range(-10000, 10000)
- );
-
- star.normalize();
- m_stars.emplace_back(star);
- }
+ m_seed = (u64)myrand() << 32 | myrand();
+ updateStars();
+ }
+}
+
+void Sky::updateStars() {
+ m_stars.reset(new scene::SMeshBuffer());
+ // Stupid IrrLicht doesn’t allow non-indexed rendering, and indexed quad
+ // rendering is slow due to lack of hardware support. So as indices are
+ // 16-bit and there are 4 vertices per star... the limit is 2^16/4 = 0x4000.
+ // That should be well enough actually.
+ if (m_star_params.count > 0x4000) {
+ warningstream << "Requested " << m_star_params.count << " stars but " << 0x4000 << " is the max\n";
+ m_star_params.count = 0x4000;
+ }
+ m_stars->Vertices.reallocate(4 * m_star_params.count);
+ m_stars->Indices.reallocate(6 * m_star_params.count);
+
+ PcgRandom rgen(m_seed);
+ float d = (0.006 / 2) * m_star_params.scale;
+ for (u16 i = 0; i < m_star_params.count; i++) {
+ v3f r = v3f(
+ rgen.range(-10000, 10000),
+ rgen.range(-10000, 10000),
+ rgen.range(-10000, 10000)
+ );
+ 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);
+ m_stars->Vertices.push_back(video::S3DVertex(p, {}, {}, {}));
+ m_stars->Vertices.push_back(video::S3DVertex(p1, {}, {}, {}));
+ m_stars->Vertices.push_back(video::S3DVertex(p2, {}, {}, {}));
+ m_stars->Vertices.push_back(video::S3DVertex(p3, {}, {}, {}));
+ }
+ for (u16 i = 0; i < m_star_params.count; i++) {
+ m_stars->Indices.push_back(i * 4 + 0);
+ m_stars->Indices.push_back(i * 4 + 1);
+ m_stars->Indices.push_back(i * 4 + 2);
+ m_stars->Indices.push_back(i * 4 + 2);
+ m_stars->Indices.push_back(i * 4 + 3);
+ m_stars->Indices.push_back(i * 4 + 0);
}
+ m_stars->setHardwareMappingHint(scene::EHM_STATIC);
}
-void Sky::setSkyColors(const SkyboxParams sky)
+void Sky::setSkyColors(const SkyColor &sky_color)
{
- m_sky_params.sky_color = sky.sky_color;
+ m_sky_params.sky_color = sky_color;
}
void Sky::setHorizonTint(video::SColor sun_tint, video::SColor moon_tint,
std::string use_sun_tint)
{
// Change sun and moon tinting:
- m_sky_params.sun_tint = sun_tint;
- m_sky_params.moon_tint = moon_tint;
+ m_sky_params.fog_sun_tint = sun_tint;
+ m_sky_params.fog_moon_tint = moon_tint;
// Faster than comparing strings every rendering frame
if (use_sun_tint == "default")
m_default_tint = true;
// Keep a list of texture names handy.
m_sky_params.textures.emplace_back(texture);
video::ITexture *result = tsrc->getTextureForMesh(texture);
- m_materials[material_id+5] = m_materials[0];
+ m_materials[material_id+5] = baseMaterial();
m_materials[material_id+5].setTexture(0, result);
m_materials[material_id+5].MaterialType = video::EMT_SOLID;
}
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