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much better looking moons

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This commit is contained in:
scrawl 2012-03-15 20:35:23 +01:00
parent e354203c21
commit 877cb2aca7
2 changed files with 21 additions and 8 deletions
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28
apps/openmw/mwrender/sky.cpp
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@ -162,14 +162,20 @@ Moon::Moon( const String& textureName,
" in float2 uv : TEXCOORD0, \n"
" out float4 oColor : COLOR, \n"
" uniform sampler2D texture : TEXUNIT0, \n"
" uniform float4 skyColour, \n"
" uniform float4 diffuse, \n"
" uniform float4 emissive \n"
") \n"
"{ \n"
" float4 tex = tex2D(texture, uv); \n"
" oColor = float4(emissive.xyz,1) * tex2D(texture, uv) * float4(1,1,1,diffuse.a); \n"
" float bump = pow((1-diffuse.a),4); \n"
" oColor.rgb += float3(bump, bump, bump)*0.5; \n"
" oColor = float4(emissive.xyz,1) * tex; \n"
// use a circle for the alpha (compute UV distance to center)
// looks a bit bad because its not filtered on the edges,
// but it's cheaper than a seperate alpha texture.
" float sqrUVdist = pow(uv.x-0.5,2) + pow(uv.y-0.5, 2); \n"
" oColor.a = diffuse.a * (sqrUVdist >= 0.24 ? 0 : 1); \n"
" oColor.rgb += (1-tex.a) * oColor.a * skyColour.rgb; \n"//fill dark side of moon with skycolour
" oColor.rgb += (1-diffuse.a) * skyColour.rgb; \n"//fade bump
"}";
fshader->setSource(outStream2.str());
fshader->load();
@ -187,15 +193,19 @@ void Moon::setType(const Moon::Type& type)
mType = type;
}
void Moon::setSkyColour(const Ogre::ColourValue& colour)
{
mMaterial->getTechnique(0)->getPass(0)->getFragmentProgramParameters()->setNamedConstant("skyColour", colour);
}
/// \todo the moon phase rendering is not correct - the dark part of the moon does not occlude the stars
void Moon::setPhase(const Moon::Phase& phase)
{
// Colour texture
Ogre::String textureName = "textures\\tx_";
if (mType == Moon::Type_Secunda) textureName += "secunda_";
else textureName += "masser_";
if (phase == Moon::Phase_New) textureName += "new";
else if (phase == Moon::Phase_WaxingCrescent) textureName += "one_wax";
else if (phase == Moon::Phase_WaxingHalf) textureName += "half_wax";
@ -204,9 +214,9 @@ void Moon::setPhase(const Moon::Phase& phase)
else if (phase == Moon::Phase_WaningHalf) textureName += "half_wan";
else if (phase == Moon::Phase_WaningGibbous) textureName += "three_wan";
else if (phase == Moon::Phase_Full) textureName += "full";
textureName += ".dds";
mMaterial->getTechnique(0)->getPass(0)->getTextureUnitState(0)->setTextureName(textureName);
mPhase = phase;
@ -650,6 +660,8 @@ void SkyManager::setWeather(const MWWorld::WeatherResult& weather)
if (mSkyColour != weather.mSkyColor)
{
mAtmosphereMaterial->getTechnique(0)->getPass(0)->setSelfIllumination(weather.mSkyColor);
mMasser->setSkyColour(weather.mSkyColor);
mSecunda->setSkyColour(weather.mSkyColor);
mSkyColour = weather.mSkyColor;
}

1
apps/openmw/mwrender/sky.hpp
View file

@ -94,6 +94,7 @@ namespace MWRender
void setPhase(const Phase& phase);
void setType(const Type& type);
void setSkyColour(const Ogre::ColourValue& colour);
Phase getPhase() const;
unsigned int getPhaseInt() const;