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- added night sky rendering with stars, nebulas, and fading in/out to sunset / sunrise

Browse Source 
- changed WeatherGlobals members to static
actorid
scrawl 13 years ago
parent 9560904d8a
commit 0ebdce543a
5 changed files with 137 additions and 46 deletions
Show Stats Download Patch File Download Diff File

2
apps/openmw/mwrender/renderingmanager.cpp
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@ -302,7 +302,7 @@ void RenderingManager::sunDisable()
void RenderingManager::setSunDirection(const Ogre::Vector3& direction)
{
if (mSun) mSun->setPosition(direction);
if (mSun) mSun->setDirection(Vector3(direction.x, -direction.z, direction.y));
mSkyManager->setSunDirection(direction);
}

110
apps/openmw/mwrender/sky.cpp
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@ -78,7 +78,7 @@ void BillboardObject::init(const String& textureName,
/// \todo These billboards are not 100% correct, might want to revisit them later
mBBSet = sceneMgr->createBillboardSet("SkyBillboardSet"+StringConverter::toString(bodyCount), 1);
mBBSet->setDefaultDimensions(scale, scale);
mBBSet->setRenderQueueGroup(RENDER_QUEUE_SKIES_EARLY+1);
mBBSet->setRenderQueueGroup(RENDER_QUEUE_SKIES_EARLY+2);
mBBSet->setBillboardType(BBT_PERPENDICULAR_COMMON);
mBBSet->setCommonDirection( -position.normalisedCopy() );
mNode = rootNode->createChildSceneNode();
@ -220,7 +220,7 @@ void Moon::setVisibility(const float pVisibility)
}
void SkyManager::ModVertexAlpha(Entity* ent, unsigned int meshType)
{
{
// Get the vertex colour buffer of this mesh
const Ogre::VertexElement* ves_diffuse = ent->getMesh()->getSubMesh(0)->vertexData->vertexDeclaration->findElementBySemantic( Ogre::VES_DIFFUSE );
HardwareVertexBufferSharedPtr colourBuffer = ent->getMesh()->getSubMesh(0)->vertexData->vertexBufferBinding->getBuffer(ves_diffuse->getSource());
@ -282,6 +282,8 @@ SkyManager::SkyManager (SceneNode* pMwRoot, Camera* pCamera) :
mRootNode = pCamera->getParentSceneNode()->createChildSceneNode();
mRootNode->pitch(Degree(-90)); // convert MW to ogre coordinates
mRootNode->setInheritOrientation(false);
/// \todo preload all the textures and meshes that are used for sky rendering
mViewport->setBackgroundColour(ColourValue(0.87, 0.87, 0.87));
@ -299,15 +301,90 @@ SkyManager::SkyManager (SceneNode* pMwRoot, Camera* pCamera) :
HighLevelGpuProgramManager& mgr = HighLevelGpuProgramManager::getSingleton();
// Atmosphere
MeshPtr mesh = NifOgre::NIFLoader::load("meshes\\sky_atmosphere.nif");
// Stars
/// \todo sky_night_02.nif (available in Bloodmoon)
/// \todo how to make a transition between day and night sky?
MeshPtr mesh = NifOgre::NIFLoader::load("meshes\\sky_night_01.nif");
Entity* night1_ent = mSceneMgr->createEntity("meshes\\sky_night_01.nif");
night1_ent->setRenderQueueGroup(RENDER_QUEUE_SKIES_EARLY+1);
ModVertexAlpha(night1_ent, 2);
mAtmosphereNight = mRootNode->createChildSceneNode();
mAtmosphereNight->attachObject(night1_ent);
for (unsigned int i=0; i<night1_ent->getNumSubEntities(); ++i)
{
MaterialPtr mp = night1_ent->getSubEntity(i)->getMaterial();
mp->getTechnique(0)->getPass(0)->setSelfIllumination(1.0, 1.0, 1.0);
mp->getTechnique(0)->getPass(0)->setAmbient(0.0, 0.0, 0.0);
mp->getTechnique(0)->getPass(0)->setDiffuse(0.0, 0.0, 0.0, 1.0);
mp->getTechnique(0)->getPass(0)->setDepthWriteEnabled(false);
mp->getTechnique(0)->getPass(0)->setDepthCheckEnabled(false);
mp->getTechnique(0)->getPass(0)->setSceneBlending(SBT_TRANSPARENT_ALPHA);
mStarsMaterials[i] = mp;
}
// Stars vertex shader
HighLevelGpuProgramPtr vshader3 = mgr.createProgram("Stars_VP", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"cg", GPT_VERTEX_PROGRAM);
vshader3->setParameter("profiles", "vs_2_x arbvp1");
vshader3->setParameter("entry_point", "main_vp");
StringUtil::StrStreamType outStream4;
outStream4 <<
"void main_vp( \n"
" float4 position : POSITION, \n"
" in float2 uv : TEXCOORD0, \n"
" out float2 oUV : TEXCOORD0, \n"
" out float oFade : TEXCOORD1, \n"
" out float4 oPosition : POSITION, \n"
" uniform float4x4 worldViewProj \n"
") \n"
"{ \n"
" oUV = uv; \n"
" oFade = (position.z > 50) ? 1.f : 0.f; \n"
" oPosition = mul( worldViewProj, position ); \n"
"}";
vshader3->setSource(outStream4.str());
vshader3->load();
vshader3->getDefaultParameters()->setNamedAutoConstant("worldViewProj", GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
night1_ent->getSubEntity(3)->getMaterial()->getTechnique(0)->getPass(0)->setVertexProgram(vshader3->getName());
// Stars fragment shader
HighLevelGpuProgramPtr stars_fp = mgr.createProgram("Stars_FP", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"cg", GPT_FRAGMENT_PROGRAM);
stars_fp->setParameter("profiles", "ps_2_x arbfp1");
stars_fp->setParameter("entry_point", "main_fp");
StringUtil::StrStreamType outStream5;
outStream5 <<
"void main_fp( \n"
" in float2 uv : TEXCOORD0, \n"
" out float4 oColor : COLOR, \n"
" in float fade : TEXCOORD1, \n"
" uniform sampler2D texture : TEXUNIT0, \n"
" uniform float opacity, \n"
" uniform float4 diffuse, \n"
" uniform float4 emissive \n"
") \n"
"{ \n"
" oColor = tex2D(texture, uv) * float4(emissive.xyz, 1) * float4(1,1,1,fade*diffuse.a); \n"
"}";
stars_fp->setSource(outStream5.str());
stars_fp->load();
stars_fp->getDefaultParameters()->setNamedAutoConstant("emissive", GpuProgramParameters::ACT_SURFACE_EMISSIVE_COLOUR);
stars_fp->getDefaultParameters()->setNamedAutoConstant("diffuse", GpuProgramParameters::ACT_SURFACE_DIFFUSE_COLOUR);
night1_ent->getSubEntity(3)->getMaterial()->getTechnique(0)->getPass(0)->setFragmentProgram(stars_fp->getName());
// Atmosphere (day)
mesh = NifOgre::NIFLoader::load("meshes\\sky_atmosphere.nif");
Entity* atmosphere_ent = mSceneMgr->createEntity("meshes\\sky_atmosphere.nif");
ModVertexAlpha(atmosphere_ent, 0);
atmosphere_ent->setRenderQueueGroup(RENDER_QUEUE_SKIES_EARLY);
Ogre::SceneNode* atmosphere_node = mRootNode->createChildSceneNode();
atmosphere_node->attachObject(atmosphere_ent);
mAtmosphereDay = mRootNode->createChildSceneNode();
mAtmosphereDay->attachObject(atmosphere_ent);
mAtmosphereMaterial = atmosphere_ent->getSubEntity(0)->getMaterial();
// Atmosphere shader
@ -341,7 +418,7 @@ SkyManager::SkyManager (SceneNode* pMwRoot, Camera* pCamera) :
// Clouds
NifOgre::NIFLoader::load("meshes\\sky_clouds_01.nif");
Entity* clouds_ent = mSceneMgr->createEntity("meshes\\sky_clouds_01.nif");
clouds_ent->setRenderQueueGroup(RENDER_QUEUE_SKIES_EARLY+2);
clouds_ent->setRenderQueueGroup(RENDER_QUEUE_SKIES_EARLY+3);
SceneNode* clouds_node = mRootNode->createChildSceneNode();
clouds_node->attachObject(clouds_ent);
mCloudMaterial = clouds_ent->getSubEntity(0)->getMaterial();
@ -411,8 +488,7 @@ SkyManager::SkyManager (SceneNode* pMwRoot, Camera* pCamera) :
mAtmosphereMaterial = mAtmosphereMaterial->clone("Atmosphere");
atmosphere_ent->getSubEntity(0)->setMaterial(mAtmosphereMaterial);
// Default atmosphere color: light blue
mAtmosphereMaterial->getTechnique(0)->getPass(0)->setSelfIllumination(0.235, 0.5, 0.73);
mAtmosphereMaterial->getTechnique(0)->getPass(0)->setSelfIllumination(1.0, 1.0, 1.0);
mAtmosphereMaterial->getTechnique(0)->getPass(0)->setDiffuse(0.0, 0.0, 0.0, 0.0);
mAtmosphereMaterial->getTechnique(0)->getPass(0)->setAmbient(0.0, 0.0, 0.0);
mCloudMaterial->getTechnique(0)->getPass(0)->setSelfIllumination(1.0, 1.0, 1.0);
@ -446,9 +522,6 @@ void SkyManager::update(float duration)
{
// UV Scroll the clouds
mCloudMaterial->getTechnique(0)->getPass(0)->getFragmentProgramParameters()->setNamedConstantFromTime("time", 1);
mSunGlare->setVisible(mGlareEnabled && mSunEnabled && mEnabled);
mSun->setVisible(mSunEnabled && mEnabled);
}
void SkyManager::enable()
@ -458,6 +531,10 @@ void SkyManager::enable()
mSunGlare->setVisible(mGlareEnabled && mSunEnabled && mEnabled);
mSun->setVisible(mSunEnabled && mEnabled);
/// \todo
mMasser->setVisible(false);
mSecunda->setVisible(false);
}
void SkyManager::disable()
@ -521,6 +598,15 @@ void SkyManager::setWeather(const MWWorld::WeatherResult& weather)
mCloudMaterial->getTechnique(0)->getPass(0)->getFragmentProgramParameters()->setNamedConstant("speed", Real(weather.mCloudSpeed));
mCloudSpeed = weather.mCloudSpeed;
}
if (weather.mNight && mStarsOpacity != weather.mNightFade)
{
for (int i=0; i<7; ++i)
mStarsMaterials[i]->getTechnique(0)->getPass(0)->setDiffuse(0.0, 0.0, 0.0, weather.mNightFade);
mStarsOpacity = weather.mNightFade;
}
mAtmosphereNight->setVisible(weather.mNight && mEnabled);
mViewport->setBackgroundColour(weather.mFogColor);
}

9
apps/openmw/mwrender/sky.hpp
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@ -149,18 +149,23 @@ namespace MWRender
Ogre::SceneNode* mRootNode;
Ogre::SceneManager* mSceneMgr;
Ogre::SceneNode* mAtmosphereDay;
Ogre::SceneNode* mAtmosphereNight;
Ogre::MaterialPtr mCloudMaterial;
Ogre::MaterialPtr mAtmosphereMaterial;
Ogre::MaterialPtr mStarsMaterials[7];
Ogre::HighLevelGpuProgramPtr mCloudFragmentShader;
// remember the cloud texture names used right now, so we don't have to set the texture names if they didnt change
// remember some settings so we don't have to apply them again if they didnt change
Ogre::String mClouds;
Ogre::String mNextClouds;
float mCloudBlendFactor;
float mCloudOpacity;
float mCloudSpeed;
float mStarsOpacity;
Ogre::ColourValue mCloudColour;
Ogre::ColourValue mSkyColour;

40
apps/openmw/mwworld/weather.cpp
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@ -85,9 +85,6 @@ WeatherManager::WeatherManager(MWRender::RenderingManager* rendering, World* wor
*/
setWeather("clear", true);
// Test transition
//setWeather("cloudy", false);
}
void WeatherManager::setWeather(const String& weather, bool instant)
@ -116,35 +113,40 @@ WeatherResult WeatherManager::getResult(const String& weather)
result.mCloudSpeed = current.mCloudSpeed;
result.mGlareView = current.mGlareView;
result.mAmbientLoopSoundID = current.mAmbientLoopSoundID;
const float fade_duration = 0.15 /*current.mTransitionDelta*/;
result.mNight = (mHour < 6.f+fade_duration || mHour > 20.f-fade_duration);
// night
if (mHour <= (mGlobals.mSunriseTime-mGlobals.mSunriseDuration) || mHour >= (mGlobals.mSunsetTime+mGlobals.mSunsetDuration))
if (mHour <= (WeatherGlobals::mSunriseTime-WeatherGlobals::mSunriseDuration)
|| mHour >= (WeatherGlobals::mSunsetTime+WeatherGlobals::mSunsetDuration))
{
result.mFogColor = current.mFogNightColor;
result.mAmbientColor = current.mAmbientNightColor;
result.mSunColor = current.mSunNightColor;
result.mSkyColor = current.mSkyNightColor;
result.mNightFade = 1.f;
}
// sunrise
else if (mHour >= (mGlobals.mSunriseTime-mGlobals.mSunriseDuration) && mHour <= mGlobals.mSunriseTime)
else if (mHour >= (WeatherGlobals::mSunriseTime-WeatherGlobals::mSunriseDuration) && mHour <= WeatherGlobals::mSunriseTime)
{
if (mHour <= (mGlobals.mSunriseTime-mGlobals.mSunriseDuration+fade_duration))
if (mHour <= (WeatherGlobals::mSunriseTime-WeatherGlobals::mSunriseDuration+fade_duration))
{
// fade in
float advance = (mGlobals.mSunriseTime-mGlobals.mSunriseDuration+fade_duration)-mHour;
float advance = (WeatherGlobals::mSunriseTime-WeatherGlobals::mSunriseDuration+fade_duration)-mHour;
float factor = (advance / fade_duration);
result.mFogColor = lerp(current.mFogSunriseColor, current.mFogNightColor);
result.mAmbientColor = lerp(current.mAmbientSunriseColor, current.mAmbientNightColor);
result.mSunColor = lerp(current.mSunSunriseColor, current.mSunNightColor);
result.mSkyColor = lerp(current.mSkySunriseColor, current.mSkyNightColor);
result.mNightFade = factor;
}
else if (mHour >= (mGlobals.mSunriseTime-fade_duration))
else if (mHour >= (WeatherGlobals::mSunriseTime-fade_duration))
{
// fade out
float advance = mHour-(mGlobals.mSunriseTime-fade_duration);
float advance = mHour-(WeatherGlobals::mSunriseTime-fade_duration);
float factor = advance / fade_duration;
result.mFogColor = lerp(current.mFogSunriseColor, current.mFogDayColor);
result.mAmbientColor = lerp(current.mAmbientSunriseColor, current.mAmbientDayColor);
@ -161,7 +163,7 @@ WeatherResult WeatherManager::getResult(const String& weather)
}
// day
else if (mHour >= (mGlobals.mSunriseTime) && mHour <= (mGlobals.mSunsetTime))
else if (mHour >= (WeatherGlobals::mSunriseTime) && mHour <= (WeatherGlobals::mSunsetTime))
{
result.mFogColor = current.mFogDayColor;
result.mAmbientColor = current.mAmbientDayColor;
@ -170,27 +172,28 @@ WeatherResult WeatherManager::getResult(const String& weather)
}
// sunset
else if (mHour >= (mGlobals.mSunsetTime) && mHour <= (mGlobals.mSunsetTime+mGlobals.mSunsetDuration))
else if (mHour >= (WeatherGlobals::mSunsetTime) && mHour <= (WeatherGlobals::mSunsetTime+WeatherGlobals::mSunsetDuration))
{
if (mHour <= (mGlobals.mSunsetTime+fade_duration))
if (mHour <= (WeatherGlobals::mSunsetTime+fade_duration))
{
// fade in
float advance = (mGlobals.mSunsetTime+fade_duration)-mHour;
float advance = (WeatherGlobals::mSunsetTime+fade_duration)-mHour;
float factor = (advance / fade_duration);
result.mFogColor = lerp(current.mFogSunsetColor, current.mFogDayColor);
result.mAmbientColor = lerp(current.mAmbientSunsetColor, current.mAmbientDayColor);
result.mSunColor = lerp(current.mSunSunsetColor, current.mSunDayColor);
result.mSkyColor = lerp(current.mSkySunsetColor, current.mSkyDayColor);
}
else if (mHour >= (mGlobals.mSunsetTime+mGlobals.mSunsetDuration-fade_duration))
else if (mHour >= (WeatherGlobals::mSunsetTime+WeatherGlobals::mSunsetDuration-fade_duration))
{
// fade out
float advance = mHour-(mGlobals.mSunsetTime+mGlobals.mSunsetDuration-fade_duration);
float advance = mHour-(WeatherGlobals::mSunsetTime+WeatherGlobals::mSunsetDuration-fade_duration);
float factor = advance / fade_duration;
result.mFogColor = lerp(current.mFogSunsetColor, current.mFogNightColor);
result.mAmbientColor = lerp(current.mAmbientSunsetColor, current.mAmbientNightColor);
result.mSunColor = lerp(current.mSunSunsetColor, current.mSunNightColor);
result.mSkyColor = lerp(current.mSkySunsetColor, current.mSkyNightColor);
result.mNightFade = factor;
}
else
{
@ -227,6 +230,8 @@ WeatherResult WeatherManager::transition(float factor)
result.mCloudOpacity = lerp(current.mCloudOpacity, other.mCloudOpacity);
result.mGlareView = lerp(current.mGlareView, other.mGlareView);
result.mNight = current.mNight;
// sound change behaviour:
// if 'other' has a new sound, switch to it after 1/2 of the transition length
if (other.mAmbientLoopSoundID != "")
@ -274,7 +279,8 @@ void WeatherManager::update(float duration)
}
// disable sun during night
if (mHour >= mGlobals.mSunsetTime+mGlobals.mSunsetDuration || mHour <= mGlobals.mSunriseTime-mGlobals.mSunriseDuration)
if (mHour >= WeatherGlobals::mSunsetTime+WeatherGlobals::mSunsetDuration
|| mHour <= WeatherGlobals::mSunriseTime-WeatherGlobals::mSunriseDuration)
mRendering->getSkyManager()->sunDisable();
else
{

22
apps/openmw/mwworld/weather.hpp
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@ -68,17 +68,10 @@ namespace MWWorld
Snow Low Kill=150
*/
float mSunriseTime,
mSunsetTime,
mSunriseDuration,
mSunsetDuration;
WeatherGlobals() :
mSunriseTime(8),
mSunsetTime(18),
mSunriseDuration(2),
mSunsetDuration(2)
{};
static const float mSunriseTime = 8;
static const float mSunsetTime = 18;
static const float mSunriseDuration = 2;
static const float mSunsetDuration = 2;
};
/// Defines the actual weather that results from weather setting (see below), time of day and weather transition
@ -108,6 +101,9 @@ namespace MWWorld
float mGlareView;
bool mNight; // use night skybox
float mNightFade; // fading factor for night skybox
Ogre::String mAmbientLoopSoundID;
};
@ -208,9 +204,7 @@ namespace MWWorld
MWWorld::World* mWorld;
std::map<Ogre::String, Weather> mWeatherSettings;
WeatherGlobals mGlobals;
Ogre::String mCurrentWeather;
Ogre::String mNextWeather;

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