void LLWLParamManager::propagateParameters(void)
{
LLFastTimer ftm(FTM_UPDATE_WLPARAM);
LLVector4 sunDir;
LLVector4 moonDir;
// set the sun direction from SunAngle and EastAngle
F32 sinTheta = sin(mCurParams.getEastAngle());
F32 cosTheta = cos(mCurParams.getEastAngle());
F32 sinPhi = sin(mCurParams.getSunAngle());
F32 cosPhi = cos(mCurParams.getSunAngle());
sunDir.mV[0] = -sinTheta * cosPhi;
sunDir.mV[1] = sinPhi;
sunDir.mV[2] = cosTheta * cosPhi;
sunDir.mV[3] = 0;
moonDir = -sunDir;
// is the normal from the sun or the moon
if(sunDir.mV[1] >= 0)
{
mLightDir = sunDir;
}
else if(sunDir.mV[1] < 0 && sunDir.mV[1] > LLSky::NIGHTTIME_ELEVATION_COS)
{
// clamp v1 to 0 so sun never points up and causes weirdness on some machines
LLVector3 vec(sunDir.mV[0], sunDir.mV[1], sunDir.mV[2]);
vec.mV[1] = 0;
vec.normVec();
mLightDir = LLVector4(vec, 0.f);
}
else
{
mLightDir = moonDir;
}
// calculate the clamp lightnorm for sky (to prevent ugly banding in sky
// when haze goes below the horizon
mClampedLightDir = sunDir;
if (mClampedLightDir.mV[1] < -0.1f)
{
mClampedLightDir.mV[1] = -0.1f;
}
mCurParams.set("lightnorm", mLightDir);
// bind the variables for all shaders only if we're using WindLight
std::vector<LLGLSLShader*>::iterator shaders_iter=mShaderList.begin();
for(; shaders_iter != mShaderList.end(); ++shaders_iter)
{
(*shaders_iter)->mUniformsDirty = TRUE;
}
// get the cfr version of the sun's direction
LLVector3 cfrSunDir(sunDir.mV[2], sunDir.mV[0], sunDir.mV[1]);
// set direction and don't allow overriding
gSky.setSunDirection(cfrSunDir, LLVector3(0,0,0));
gSky.setOverrideSun(TRUE);
}
void LLWLParamManager::propagateParameters(void)
{
LLFastTimer ftm(LLFastTimer::FTM_UPDATE_WLPARAM);
LLVector4 sunDir;
LLVector4 moonDir;
// set the sun direction from SunAngle and EastAngle
F32 sinTheta = sin(mCurParams.getEastAngle());
F32 cosTheta = cos(mCurParams.getEastAngle());
F32 sinPhi = sin(mCurParams.getSunAngle());
F32 cosPhi = cos(mCurParams.getSunAngle());
sunDir.mV[0] = -sinTheta * cosPhi;
sunDir.mV[1] = sinPhi;
sunDir.mV[2] = cosTheta * cosPhi;
sunDir.mV[3] = 0;
moonDir = -sunDir;
// is the normal from the sun or the moon
if(sunDir.mV[1] >= 0)
{
mLightDir = sunDir;
}
else if(sunDir.mV[1] < 0 && sunDir.mV[1] > NIGHTTIME_ELEVATION_COS)
{
// clamp v1 to 0 so sun never points up and causes weirdness on some machines
LLVector3 vec(sunDir.mV[0], sunDir.mV[1], sunDir.mV[2]);
vec.mV[1] = 0;
vec.normVec();
mLightDir = LLVector4(vec, 0.f);
}
else
{
mLightDir = moonDir;
}
// calculate the clamp lightnorm for sky (to prevent ugly banding in sky
// when haze goes below the horizon
mClampedLightDir = sunDir;
if (mClampedLightDir.mV[1] < -0.1f)
{
mClampedLightDir.mV[1] = -0.1f;
}
mCurParams.set("lightnorm", mLightDir);
// bind the variables for all shaders only if we're using WindLight
LLViewerShaderMgr::shader_iter shaders_iter, end_shaders;
end_shaders = LLViewerShaderMgr::instance()->endShaders();
for(shaders_iter = LLViewerShaderMgr::instance()->beginShaders(); shaders_iter != end_shaders; ++shaders_iter)
{
if (shaders_iter->mProgramObject != 0
&& (gPipeline.canUseWindLightShaders()
|| shaders_iter->mShaderGroup == LLGLSLShader::SG_WATER))
{
shaders_iter->mUniformsDirty = TRUE;
}
}
// get the cfr version of the sun's direction
LLVector3 cfrSunDir(sunDir.mV[2], sunDir.mV[0], sunDir.mV[1]);
// set direction and don't allow overriding
gSky.setSunDirection(cfrSunDir, LLVector3(0,0,0));
gSky.setOverrideSun(TRUE);
}
