104 lines
3.1 KiB
C++
104 lines
3.1 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
|
|
// Copyright (C) 2010 Winch Gate Property Limited
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as
|
|
// published by the Free Software Foundation, either version 3 of the
|
|
// License, or (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
#include "std3d.h"
|
|
|
|
#include "nel/3d/light_influence_interpolator.h"
|
|
#include "nel/misc/debug.h"
|
|
#include "nel/3d/point_light_named.h"
|
|
|
|
|
|
namespace NL3D
|
|
{
|
|
|
|
|
|
// ***************************************************************************
|
|
void CLightInfluenceInterpolator::interpolate(std::vector<CPointLightInfluence> &pointLightList, float subX, float subY)
|
|
{
|
|
uint crn;
|
|
// UnRolled loops.
|
|
nlassert(NumLightPerCorner==2);
|
|
|
|
// Reset index for each light.
|
|
for(crn= 0; crn<4; crn++)
|
|
{
|
|
CCorner &corner= Corners[crn];
|
|
// UnRolled.
|
|
if(corner.Lights[0])
|
|
corner.Lights[0]->_IdInInfluenceList= -1;
|
|
if(corner.Lights[1])
|
|
corner.Lights[1]->_IdInInfluenceList= -1;
|
|
}
|
|
|
|
// Compute biLinear influence on each corner
|
|
Corners[0].Influence= (1-subX) * (1-subY);
|
|
Corners[1].Influence= subX * (1-subY);
|
|
Corners[2].Influence= (1-subX) * subY;
|
|
Corners[3].Influence= subX * subY;
|
|
|
|
// For each light of each corner
|
|
for(crn= 0; crn<4; crn++)
|
|
{
|
|
CCorner &corner= Corners[crn];
|
|
// UnRolled.
|
|
// light 0.
|
|
if(corner.Lights[0])
|
|
{
|
|
if(corner.Lights[0]->_IdInInfluenceList==-1)
|
|
{
|
|
// append a PointLightInfluence
|
|
pointLightList.push_back(CPointLightInfluence());
|
|
sint id= (sint)pointLightList.size()-1;
|
|
// setup the PointLightInfluence
|
|
corner.Lights[0]->_IdInInfluenceList= id;
|
|
pointLightList[id].PointLight= corner.Lights[0];
|
|
pointLightList[id].Influence= corner.Influence;
|
|
}
|
|
else
|
|
{
|
|
// get the PointLightInfluence
|
|
sint id= corner.Lights[0]->_IdInInfluenceList;
|
|
// increment the influence of the PointLightInfluence
|
|
pointLightList[id].Influence+= corner.Influence;
|
|
}
|
|
}
|
|
// light 1.
|
|
if(corner.Lights[1])
|
|
{
|
|
if(corner.Lights[1]->_IdInInfluenceList==-1)
|
|
{
|
|
// append a PointLightInfluence
|
|
pointLightList.push_back(CPointLightInfluence());
|
|
sint id= (sint)pointLightList.size()-1;
|
|
// setup the PointLightInfluence
|
|
corner.Lights[1]->_IdInInfluenceList= id;
|
|
pointLightList[id].PointLight= corner.Lights[1];
|
|
pointLightList[id].Influence= corner.Influence;
|
|
}
|
|
else
|
|
{
|
|
// get the PointLightInfluence
|
|
sint id= corner.Lights[1]->_IdInInfluenceList;
|
|
// increment the influence of the PointLightInfluence
|
|
pointLightList[id].Influence+= corner.Influence;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
} // NL3D
|