void LLWLParamSet::mix(LLWLParamSet& src, LLWLParamSet& dest, F32 weight)
{
// set up the iterators
LLSD::map_iterator cIt = mParamValues.beginMap();
// keep cloud positions and coverage the same
/// TODO masking will do this later
F32 cloudPos1X = (F32) mParamValues["cloud_pos_density1"][0].asReal();
F32 cloudPos1Y = (F32) mParamValues["cloud_pos_density1"][1].asReal();
F32 cloudPos2X = (F32) mParamValues["cloud_pos_density2"][0].asReal();
F32 cloudPos2Y = (F32) mParamValues["cloud_pos_density2"][1].asReal();
F32 cloudCover = (F32) mParamValues["cloud_shadow"][0].asReal();
LLSD srcVal;
LLSD destVal;
// do the interpolation for all the ones saved as vectors
// skip the weird ones
for(; cIt != mParamValues.endMap(); cIt++) {
// check params to make sure they're actually there
if(src.mParamValues.has(cIt->first))
{
srcVal = src.mParamValues[cIt->first];
}
else
{
continue;
}
if(dest.mParamValues.has(cIt->first))
{
destVal = dest.mParamValues[cIt->first];
}
else
{
continue;
}
// skip if not a vector
if(!cIt->second.isArray())
{
continue;
}
// only Real vectors allowed
if(!cIt->second[0].isReal())
{
continue;
}
// make sure all the same size
if( cIt->second.size() != srcVal.size() ||
cIt->second.size() != destVal.size())
{
continue;
}
// more error checking might be necessary;
for(int i=0; i < cIt->second.size(); ++i)
{
cIt->second[i] = (1.0f - weight) * (F32) srcVal[i].asReal() +
weight * (F32) destVal[i].asReal();
}
}
// now mix the extra parameters
setStarBrightness((1 - weight) * (F32) src.getStarBrightness()
+ weight * (F32) dest.getStarBrightness());
llassert(src.getSunAngle() >= - F_PI &&
src.getSunAngle() <= 3 * F_PI);
llassert(dest.getSunAngle() >= - F_PI &&
dest.getSunAngle() <= 3 * F_PI);
llassert(src.getEastAngle() >= 0 &&
src.getEastAngle() <= 4 * F_PI);
llassert(dest.getEastAngle() >= 0 &&
dest.getEastAngle() <= 4 * F_PI);
// sun angle and east angle require some handling to make sure
// they go in circles. Yes quaternions would work better.
F32 srcSunAngle = src.getSunAngle();
F32 destSunAngle = dest.getSunAngle();
F32 srcEastAngle = src.getEastAngle();
F32 destEastAngle = dest.getEastAngle();
if(fabsf(srcSunAngle - destSunAngle) > F_PI)
{
if(srcSunAngle > destSunAngle)
{
destSunAngle += 2 * F_PI;
}
else
{
srcSunAngle += 2 * F_PI;
}
}
if(fabsf(srcEastAngle - destEastAngle) > F_PI)
{
if(srcEastAngle > destEastAngle)
{
destEastAngle += 2 * F_PI;
}
else
{
srcEastAngle += 2 * F_PI;
}
}
setSunAngle((1 - weight) * srcSunAngle + weight * destSunAngle);
setEastAngle((1 - weight) * srcEastAngle + weight * destEastAngle);
// now setup the sun properly
// reset those cloud positions
mParamValues["cloud_pos_density1"][0] = cloudPos1X;
mParamValues["cloud_pos_density1"][1] = cloudPos1Y;
mParamValues["cloud_pos_density2"][0] = cloudPos2X;
mParamValues["cloud_pos_density2"][1] = cloudPos2Y;
mParamValues["cloud_shadow"][0] = cloudCover;
}
void LLWLParamSet::mix(LLWLParamSet& src, LLWLParamSet& dest, F32 weight)
{
// set up the iterators
// keep cloud positions and coverage the same
/// TODO masking will do this later
F32 cloudPos1X = (F32) mParamValues["cloud_pos_density1"][0].asReal();
F32 cloudPos1Y = (F32) mParamValues["cloud_pos_density1"][1].asReal();
F32 cloudPos2X = (F32) mParamValues["cloud_pos_density2"][0].asReal();
F32 cloudPos2Y = (F32) mParamValues["cloud_pos_density2"][1].asReal();
F32 cloudCover = (F32) mParamValues["cloud_shadow"][0].asReal();
LLSD srcVal;
LLSD destVal;
// Iterate through values
for(LLSD::map_iterator iter = mParamValues.beginMap(); iter != mParamValues.endMap(); ++iter)
{
// If param exists in both src and dest, set the holder variables, otherwise skip
if(src.mParamValues.has(iter->first) && dest.mParamValues.has(iter->first))
{
srcVal = src.mParamValues[iter->first];
destVal = dest.mParamValues[iter->first];
}
else
{
continue;
}
if(iter->second.isReal()) // If it's a real, interpolate directly
{
iter->second = srcVal.asReal() + ((destVal.asReal() - srcVal.asReal()) * weight);
}
else if(iter->second.isArray() && iter->second[0].isReal() // If it's an array of reals, loop through the reals and interpolate on those
&& iter->second.size() == srcVal.size() && iter->second.size() == destVal.size())
{
// Actually do interpolation: old value + (difference in values * factor)
for(int i=0; i < iter->second.size(); ++i)
{
// iter->second[i] = (1.f-weight)*(F32)srcVal[i].asReal() + weight*(F32)destVal[i].asReal(); // old way of doing it -- equivalent but one more operation
iter->second[i] = srcVal[i].asReal() + ((destVal[i].asReal() - srcVal[i].asReal()) * weight);
}
}
else // Else, skip
{
continue;
}
}
// now mix the extra parameters
setStarBrightness((1 - weight) * (F32) src.getStarBrightness()
+ weight * (F32) dest.getStarBrightness());
llassert(src.getSunAngle() >= - F_PI &&
src.getSunAngle() <= 3 * F_PI);
llassert(dest.getSunAngle() >= - F_PI &&
dest.getSunAngle() <= 3 * F_PI);
llassert(src.getEastAngle() >= 0 &&
src.getEastAngle() <= 4 * F_PI);
llassert(dest.getEastAngle() >= 0 &&
dest.getEastAngle() <= 4 * F_PI);
// sun angle and east angle require some handling to make sure
// they go in circles. Yes quaternions would work better.
F32 srcSunAngle = src.getSunAngle();
F32 destSunAngle = dest.getSunAngle();
F32 srcEastAngle = src.getEastAngle();
F32 destEastAngle = dest.getEastAngle();
if(fabsf(srcSunAngle - destSunAngle) > F_PI)
{
if(srcSunAngle > destSunAngle)
{
destSunAngle += 2 * F_PI;
}
else
{
srcSunAngle += 2 * F_PI;
}
}
if(fabsf(srcEastAngle - destEastAngle) > F_PI)
{
if(srcEastAngle > destEastAngle)
{
destEastAngle += 2 * F_PI;
}
else
{
srcEastAngle += 2 * F_PI;
}
}
setSunAngle((1 - weight) * srcSunAngle + weight * destSunAngle);
setEastAngle((1 - weight) * srcEastAngle + weight * destEastAngle);
// now setup the sun properly
// reset those cloud positions
mParamValues["cloud_pos_density1"][0] = cloudPos1X;
mParamValues["cloud_pos_density1"][1] = cloudPos1Y;
mParamValues["cloud_pos_density2"][0] = cloudPos2X;
mParamValues["cloud_pos_density2"][1] = cloudPos2Y;
mParamValues["cloud_shadow"][0] = cloudCover;
}