702 lines
20 KiB
C++
702 lines
20 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include "std3d.h"
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#include "nel/3d/lod_character_shape.h"
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#include "nel/misc/vectord.h"
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#include "nel/misc/fast_floor.h"
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#include "nel/3d/lod_character_texture.h"
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#include "nel/misc/triangle.h"
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#include "nel/misc/polygon.h"
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#include "nel/misc/hierarchical_timer.h"
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using namespace std;
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using namespace NLMISC;
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namespace NL3D
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{
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// ***************************************************************************
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// ***************************************************************************
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// CLodCharacterShape
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// ***************************************************************************
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// ***************************************************************************
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// ***************************************************************************
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const CLodCharacterShapeBuild::CPixelInfo CLodCharacterShapeBuild::CPixelInfo::EmptyPixel(
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CVector::Null, CVector(1000,0,0));
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// ***************************************************************************
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CLodCharacterShapeBuild::CLodCharacterShapeBuild()
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{
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_Width= 0;
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_Height= 0;
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}
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// ***************************************************************************
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void CLodCharacterShapeBuild::compile(const std::vector<bool> &triangleSelection, uint textureOverSample)
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{
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nlassert(UVs.size()==Vertices.size());
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nlassert(Normals.size()==Vertices.size());
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// take the sqrtf.
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textureOverSample= (uint)sqrtf((float)textureOverSample);
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textureOverSample= max(textureOverSample, 1U);
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_Width= NL3D_CLOD_TEXT_WIDTH;
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_Height= NL3D_CLOD_TEXT_HEIGHT;
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uint wOver= _Width*textureOverSample;
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uint hOver= _Height*textureOverSample;
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std::vector<CPixelInfo> overTextureInfo;
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// do some tri selection?
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bool triSelectOk= triangleSelection.size()==TriangleIndices.size()/3;
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// **** reset the texture and init with "empty" pixel (ie normal.x==1000, which is not possible because normal.norm()==1)
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_TextureInfo.resize(_Width*_Height);
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fill(_TextureInfo.begin(), _TextureInfo.end(), CPixelInfo::EmptyPixel);
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// do it to the oversampled texture
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overTextureInfo.resize(wOver*hOver, CPixelInfo::EmptyPixel);
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// **** For each triangle in the shape, polyfill this triangle from a texture view, in the overSampledTexture
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CPolygon2D poly;
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poly.Vertices.resize(3);
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for(uint i=0; i<TriangleIndices.size();i+=3)
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{
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// if selection OK, and the tri is not selected, skip
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if(triSelectOk && !triangleSelection[i/3])
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continue;
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// Setup triangle.
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// -----------
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uint idx[3];
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idx[0]= TriangleIndices[i+0];
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idx[1]= TriangleIndices[i+1];
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idx[2]= TriangleIndices[i+2];
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// compute corners UVs, in texel size
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CTriangle triangleUV;
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triangleUV.V0= CVector(UVs[idx[0]].U*wOver, UVs[idx[0]].V*hOver, 0);
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triangleUV.V1= CVector(UVs[idx[1]].U*wOver, UVs[idx[1]].V*hOver, 0);
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triangleUV.V2= CVector(UVs[idx[2]].U*wOver, UVs[idx[2]].V*hOver, 0);
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// compute corners pixelInfos
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CPixelInfo pInf[3];
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for(uint corner=0; corner<3; corner++)
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{
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pInf[corner].Pos= Vertices[idx[corner]];
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pInf[corner].Normal= Normals[idx[corner]];
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}
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// Compute Gradients
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CVector GradPosX, GradPosY, GradPosZ;
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CVector GradNormalX, GradNormalY, GradNormalZ;
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triangleUV.computeGradient(pInf[0].Pos.x, pInf[1].Pos.x, pInf[2].Pos.x, GradPosX);
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triangleUV.computeGradient(pInf[0].Pos.y, pInf[1].Pos.y, pInf[2].Pos.y, GradPosY);
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triangleUV.computeGradient(pInf[0].Pos.z, pInf[1].Pos.z, pInf[2].Pos.z, GradPosZ);
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triangleUV.computeGradient(pInf[0].Normal.x, pInf[1].Normal.x, pInf[2].Normal.x, GradNormalX);
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triangleUV.computeGradient(pInf[0].Normal.y, pInf[1].Normal.y, pInf[2].Normal.y, GradNormalY);
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triangleUV.computeGradient(pInf[0].Normal.z, pInf[1].Normal.z, pInf[2].Normal.z, GradNormalZ);
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// Compute Gradients offset
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float OffPosX, OffPosY, OffPosZ;
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float OffNormalX, OffNormalY, OffNormalZ;
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OffPosX= pInf[0].Pos.x - GradPosX*triangleUV.V0;
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OffPosY= pInf[0].Pos.y - GradPosY*triangleUV.V0;
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OffPosZ= pInf[0].Pos.z - GradPosZ*triangleUV.V0;
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OffNormalX= pInf[0].Normal.x - GradNormalX*triangleUV.V0;
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OffNormalY= pInf[0].Normal.y - GradNormalY*triangleUV.V0;
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OffNormalZ= pInf[0].Normal.z - GradNormalZ*triangleUV.V0;
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// PolyFiller
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// -----------
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CVector2f dCenter(0.5f, 0.5f);
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// select texels if their centers is in the triangle
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poly.Vertices[0]= triangleUV.V0-dCenter;
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poly.Vertices[1]= triangleUV.V1-dCenter;
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poly.Vertices[2]= triangleUV.V2-dCenter;
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// polyFiller
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CPolygon2D::TRasterVect rasters;
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sint minY;
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poly.computeBorders(rasters, minY);
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for(sint y=0;y<(sint)rasters.size();y++)
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{
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sint x0= rasters[y].first;
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sint x1= rasters[y].second;
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CVector v;
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// get the center coord of this texel
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v.y= y+minY+0.5f;
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v.z= 0;
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for(sint x=x0;x<=x1;x++)
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{
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// get the center coord of this texel
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v.x= x+0.5f;
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// Compute Pos/Normal on this texel.
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CPixelInfo texelInf;
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texelInf.Pos.x= OffPosX + GradPosX * v;
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texelInf.Pos.y= OffPosY + GradPosY * v;
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texelInf.Pos.z= OffPosZ + GradPosZ * v;
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texelInf.Normal.x= OffNormalX + GradNormalX * v;
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texelInf.Normal.y= OffNormalY + GradNormalY * v;
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texelInf.Normal.z= OffNormalZ + GradNormalZ * v;
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// normalize.
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texelInf.Normal.normalize();
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// Store (NB: overwrite any pixel)
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sint texX= ((uint)x)%wOver;
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sint texY= ((uint)y+minY)%hOver;
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overTextureInfo[texY*wOver+texX]= texelInf;
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}
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}
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}
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// **** Down sample the overSampled texture.
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sint x,y;
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if(textureOverSample==1)
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{
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_TextureInfo= overTextureInfo;
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}
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else
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{
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// eg: 3 gives 1. delta ranges from -1 to 1.
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float middle= (textureOverSample-1)/2.f;
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// for all pixels.
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for(y=0;y<(sint)_Height;y++)
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{
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for(x=0;x<(sint)_Width;x++)
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{
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// for all samples, take the best one.
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sint xo, yo;
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float bestDist= FLT_MAX;
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CPixelInfo bestPixel= CPixelInfo::EmptyPixel;
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for(yo=0;yo<(sint)textureOverSample;yo++)
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{
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for(xo=0;xo<(sint)textureOverSample;xo++)
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{
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// compute distance to the pixel center.
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float dist= sqr(yo-middle)+sqr(xo-middle);
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const CPixelInfo &overPixel= overTextureInfo[(y*textureOverSample+yo)*wOver+(x*textureOverSample+xo)];
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// if the overPixel is not empty.
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if( !(overPixel==CPixelInfo::EmptyPixel) )
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{
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// take it if the best: nearest to the pixel center.
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if(dist<bestDist)
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{
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bestDist= dist;
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bestPixel= overPixel;
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}
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}
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}
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}
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// fill textureInfo
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_TextureInfo[y*_Width+x]= bestPixel;
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}
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}
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}
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// **** Dilate texture 1 time: each empty pixel info get neighbor full pixel (8box)
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// copy the non dilated texture
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std::vector<CPixelInfo> tmpTextureInfo= _TextureInfo;
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// process all pixels
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for(y=0;y<(sint)_Height;y++)
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{
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sint y0=y-1, y1=y+1;
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y0= max(y0, 0);
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y1= min(y1, (sint)_Height-1);
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for(x=0;x<(sint)_Width;x++)
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{
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CPixelInfo &texelInf= _TextureInfo[y*_Width+x];
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// if an empty pixel.
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if(texelInf==CPixelInfo::EmptyPixel)
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{
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// dilate: look around for non empty pixel.
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sint x0=x-1, x1=x+1;
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x0= max(x0, 0);
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x1= min(x1, (sint)_Width-1);
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// For the 8 possible pixels (nb: look us too, but doesn't matter since we are an empty pixel)
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for(sint yb= y0; yb<=y1;yb++)
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{
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for(sint xb= x0; xb<=x1;xb++)
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{
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// if the neighbor is not an empty pixel. NB: avoid override problems using not Dilated texture
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CPixelInfo &nbTexelInf= tmpTextureInfo[yb*_Width+xb];
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if( !(nbTexelInf==CPixelInfo::EmptyPixel) )
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{
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// write it in the center pixel, and skip the search
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texelInf= nbTexelInf;
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yb= y1+1;
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break;
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}
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}
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}
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}
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}
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}
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}
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// ***************************************************************************
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void CLodCharacterShapeBuild::serial(NLMISC::IStream &f)
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{
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// NEL_CLODBULD
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f.serialCheck(NELID("_LEN"));
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f.serialCheck(NELID("DOLC"));
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f.serialCheck(NELID("DLUB"));
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/*
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Version 1:
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- UVs and Normals + texture info
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*/
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sint ver= f.serialVersion(1);
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f.serialCont(Vertices);
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f.serialCont(SkinWeights);
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f.serialCont(BonesNames);
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#ifdef NL_LOD_CHARACTER_INDEX16
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// must serial 16 bits index as 32 bits
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if (f.isReading())
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{
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std::vector<uint32> readVect;
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f.serialCont(readVect);
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TriangleIndices.resize(readVect.size());
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for(uint k = 0; k < readVect.size(); ++k)
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{
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nlassert(readVect[k] <= 0xffff);
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TriangleIndices[k] = (uint16) readVect[k];
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}
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}
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else
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{
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std::vector<uint32> saveVect(TriangleIndices.size());
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std::copy(TriangleIndices.begin(), TriangleIndices.end(), saveVect.begin()); // copy will do the job
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f.serialCont(saveVect);
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}
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#else
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f.serialCont(TriangleIndices);
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#endif
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if(ver>=1)
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{
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f.serialCont(UVs);
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f.serialCont(Normals);
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f.serial(_Width, _Height);
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f.serialCont(_TextureInfo);
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}
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else
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{
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// Must init dummy UVs/normals
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UVs.resize(Vertices.size(), CUV(0,0));
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Normals.resize(Vertices.size(), CVector::K);
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// Must init dummy texture
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_Width= NL3D_CLOD_TEXT_WIDTH;
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_Height= NL3D_CLOD_TEXT_HEIGHT;
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_TextureInfo.resize(_Width*_Height, CPixelInfo::EmptyPixel);
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}
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}
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// ***************************************************************************
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const CLodCharacterShapeBuild::CPixelInfo *CLodCharacterShapeBuild::getTextureInfoPtr()
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{
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if(_TextureInfo.empty())
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return NULL;
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else
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return &_TextureInfo[0];
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}
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// ***************************************************************************
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// ***************************************************************************
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// CLodCharacterShape
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// ***************************************************************************
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// ***************************************************************************
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// ***************************************************************************
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CLodCharacterShape::CLodCharacterShape()
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{
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_NumVertices= 0;
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_NumTriangles= 0;
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}
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// ***************************************************************************
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void CLodCharacterShape::buildMesh(const std::string &name, const CLodCharacterShapeBuild &lodBuild)
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{
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uint numVertices= (uint)lodBuild.Vertices.size();
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const vector<uint32> &triangleIndices= lodBuild.TriangleIndices;
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const vector<CMesh::CSkinWeight> &skinWeights= lodBuild.SkinWeights;
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const vector<CUV> &uvs= lodBuild.UVs;
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const vector<CVector> &normals= lodBuild.Normals;
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nlassert(numVertices>0);
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nlassert(triangleIndices.size()>0);
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nlassert((triangleIndices.size()%3)==0);
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nlassert(skinWeights.size() == numVertices);
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nlassert(uvs.size() == numVertices);
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nlassert(normals.size() == numVertices);
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// reset data
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contReset(_Anims);
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contReset(_AnimMap);
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contReset(_Bones);
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contReset(_BoneMap);
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contReset(_TriangleIndices);
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contReset(_UVs);
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contReset(_Normals);
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// Copy data.
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_Name= name;
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_NumVertices= numVertices;
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_NumTriangles= (uint32)triangleIndices.size()/3;
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#ifdef NL_LOD_CHARACTER_INDEX16
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_TriangleIndices.resize(triangleIndices.size());
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for(uint k = 0; k < triangleIndices.size(); ++k)
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{
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nlassert(triangleIndices[k] <= 0xffff);
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_TriangleIndices[k] = (uint16) triangleIndices[k];
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}
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#else
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_TriangleIndices= triangleIndices;
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#endif
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_UVs= uvs;
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_Normals= normals;
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// check indices.
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uint i;
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for(i=0;i<triangleIndices.size();i++)
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{
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nlassert(triangleIndices[i]<_NumVertices);
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}
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// Copy bone names, and compute bone Map
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_Bones.resize(lodBuild.BonesNames.size());
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for(i=0; i<_Bones.size(); i++)
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{
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_Bones[i].Name= lodBuild.BonesNames[i];
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_BoneMap.insert( make_pair(_Bones[i].Name, i) );
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}
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// "Normalize" SkinWeights for CLodCharacterShape
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for(i=0;i<skinWeights.size();i++)
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{
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nlassert(skinWeights[i].Weights[0]>0);
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// for all slots not 0
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for(uint j=0;j<NL3D_MESH_SKINNING_MAX_MATRIX;j++)
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{
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// if this this slot is used.
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if(skinWeights[i].Weights[j]>0)
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{
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uint boneId= skinWeights[i].MatrixId[j];
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nlassert(boneId < _Bones.size());
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// init the vInf data
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CVertexInf vInf;
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vInf.VertexId= i;
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vInf.Influence= skinWeights[i].Weights[j];
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// Insert this vertex influence in the bone.
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_Bones[boneId].InfVertices.push_back(vInf);
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}
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else
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// stop for this vertex.
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break;
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}
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}
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}
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// ***************************************************************************
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bool CLodCharacterShape::addAnim(const CAnimBuild &animBuild)
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{
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// first, verify don't exist.
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if(getAnimIdByName(animBuild.Name)!=-1)
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return false;
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// build basics of the animation
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CAnim dstAnim;
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dstAnim.Name= animBuild.Name;
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dstAnim.AnimLength= animBuild.AnimLength;
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// Possible to have an Anim with just one key. setup an epsilon for animLength if 0.
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if(dstAnim.AnimLength<=0)
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dstAnim.AnimLength= 0.001f;
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dstAnim.OOAnimLength= 1.0f / animBuild.AnimLength;
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dstAnim.NumKeys= animBuild.NumKeys;
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// verify size of the array
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nlassert(dstAnim.NumKeys>0);
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nlassert(dstAnim.NumKeys * _NumVertices == animBuild.Keys.size());
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// resize dest array
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dstAnim.Keys.resize(animBuild.Keys.size());
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// Pack animation. 1st pass: compute max size over the animation vertices
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uint i;
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// minimum shape size is , say, 1 cm :)
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CVector maxSize(0.01f, 0.01f, 0.01f);
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for(i=0;i<animBuild.Keys.size();i++)
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{
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// take the maxSize of the abs values
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maxSize.maxof(maxSize, -animBuild.Keys[i]);
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maxSize.maxof(maxSize, animBuild.Keys[i]);
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}
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// compute the UnPackScaleFactor ie maxSize, to be multiplied by max Abs value of a sint16
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dstAnim.UnPackScaleFactor= maxSize * (1.0f/32767);
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// Pack animation. 2st pass: pack.
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CVectorD packScaleFactor;
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packScaleFactor.x= 1.0 / dstAnim.UnPackScaleFactor.x;
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packScaleFactor.y= 1.0 / dstAnim.UnPackScaleFactor.y;
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packScaleFactor.z= 1.0 / dstAnim.UnPackScaleFactor.z;
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// For all key vertices
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for(i=0;i<animBuild.Keys.size();i++)
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{
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CVector v= animBuild.Keys[i];
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CVector3s &dstV= dstAnim.Keys[i];
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// compress
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v.x= float(v.x*packScaleFactor.x);
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v.y= float(v.y*packScaleFactor.y);
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v.z= float(v.z*packScaleFactor.z);
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// clamp to sint16 limits (for float precision problems).
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clamp(v.x, -32767, 32767);
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clamp(v.y, -32767, 32767);
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clamp(v.z, -32767, 32767);
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// get into the vector3s
|
|
dstV.x= (sint16)floor(v.x);
|
|
dstV.y= (sint16)floor(v.y);
|
|
dstV.z= (sint16)floor(v.z);
|
|
}
|
|
|
|
|
|
// Add the anim to the array, and add an entry to the map
|
|
_Anims.push_back(dstAnim);
|
|
_AnimMap.insert(make_pair(dstAnim.Name, (uint32)_Anims.size()-1));
|
|
|
|
return true;
|
|
}
|
|
|
|
// ***************************************************************************
|
|
void CLodCharacterShape::CAnim::serial(NLMISC::IStream &f)
|
|
{
|
|
(void)f.serialVersion(0);
|
|
|
|
f.serial(Name);
|
|
f.serial(NumKeys);
|
|
f.serial(AnimLength);
|
|
f.serial(OOAnimLength);
|
|
f.serial(UnPackScaleFactor);
|
|
f.serialCont(Keys);
|
|
}
|
|
|
|
|
|
// ***************************************************************************
|
|
void CLodCharacterShape::CBoneInfluence::serial(NLMISC::IStream &f)
|
|
{
|
|
(void)f.serialVersion(0);
|
|
|
|
f.serial(Name);
|
|
f.serialCont(InfVertices);
|
|
}
|
|
|
|
|
|
// ***************************************************************************
|
|
void CLodCharacterShape::serial(NLMISC::IStream &f)
|
|
{
|
|
// NEL_CLODSHAP
|
|
f.serialCheck(NELID("_LEN"));
|
|
f.serialCheck(NELID("DOLC"));
|
|
f.serialCheck(NELID("PAHS"));
|
|
|
|
/*
|
|
Version 1:
|
|
- UVs and Normals.
|
|
*/
|
|
sint ver= f.serialVersion(1);
|
|
|
|
f.serial(_Name);
|
|
f.serial(_NumVertices);
|
|
f.serial(_NumTriangles);
|
|
f.serialCont(_Bones);
|
|
f.serialCont(_BoneMap);
|
|
// nb : indices are always saved in 32 bits for compatibility
|
|
#ifndef NL_LOD_CHARACTER_INDEX16
|
|
f.serialCont(_TriangleIndices);
|
|
#else
|
|
if (f.isReading())
|
|
{
|
|
std::vector<uint32> savedIndices;
|
|
f.serialCont(savedIndices);
|
|
_TriangleIndices.resize(savedIndices.size());
|
|
for(uint k = 0; k < savedIndices.size(); ++k)
|
|
{
|
|
nlassert(savedIndices[k] <= 0xffff);
|
|
_TriangleIndices[k] = (uint16) savedIndices[k];
|
|
}
|
|
}
|
|
else
|
|
{
|
|
std::vector<uint32> savedIndices;
|
|
savedIndices.resize(_TriangleIndices.size());
|
|
for(uint k = 0; k < savedIndices.size(); ++k)
|
|
{
|
|
savedIndices[k] = _TriangleIndices[k];
|
|
}
|
|
f.serialCont(savedIndices);
|
|
}
|
|
#endif
|
|
f.serialCont(_Anims);
|
|
f.serialCont(_AnimMap);
|
|
|
|
if(ver>=1)
|
|
{
|
|
f.serialCont(_UVs);
|
|
f.serialCont(_Normals);
|
|
}
|
|
else
|
|
{
|
|
// Must init dummy UVs/normals
|
|
_UVs.resize(_NumVertices, CUV(0,0));
|
|
_Normals.resize(_NumVertices, CVector::K);
|
|
}
|
|
}
|
|
|
|
// ***************************************************************************
|
|
sint CLodCharacterShape::getAnimIdByName(const std::string &name) const
|
|
{
|
|
CstItStrIdMap it= _AnimMap.find(name);
|
|
if(it == _AnimMap.end())
|
|
return -1;
|
|
else
|
|
return it->second;
|
|
}
|
|
|
|
|
|
// ***************************************************************************
|
|
sint CLodCharacterShape::getBoneIdByName(const std::string &name) const
|
|
{
|
|
CstItStrIdMap it= _BoneMap.find(name);
|
|
if(it == _BoneMap.end())
|
|
return -1;
|
|
else
|
|
return it->second;
|
|
}
|
|
|
|
|
|
// ***************************************************************************
|
|
const TLodCharacterIndexType *CLodCharacterShape::getTriangleArray() const
|
|
{
|
|
if(_NumTriangles)
|
|
return &_TriangleIndices[0];
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
// ***************************************************************************
|
|
const CLodCharacterShape::CVector3s *CLodCharacterShape::getAnimKey(uint animId, TGlobalAnimationTime time, bool wrapMode, CVector &unPackScaleFactor) const
|
|
{
|
|
H_AUTO( NL3D_LodCharacterShape_getAnimKey )
|
|
|
|
float localTime;
|
|
|
|
if(animId>=_Anims.size())
|
|
return NULL;
|
|
|
|
// get the anim.
|
|
const CAnim &anim= _Anims[animId];
|
|
|
|
// scale info
|
|
unPackScaleFactor= anim.UnPackScaleFactor;
|
|
|
|
// Loop mgt.
|
|
if(wrapMode)
|
|
localTime= (float)fmod((float)time, (float)anim.AnimLength);
|
|
else
|
|
localTime= (float)time;
|
|
|
|
// Clamp to the range.
|
|
clamp(localTime, 0, anim.AnimLength);
|
|
|
|
// get the key.
|
|
sint keyId= (sint)floor( (localTime*anim.OOAnimLength) * anim.NumKeys );
|
|
clamp(keyId, 0, sint(anim.NumKeys-1));
|
|
|
|
// return the key.
|
|
return &anim.Keys[keyId * _NumVertices];
|
|
}
|
|
|
|
// ***************************************************************************
|
|
const CUV *CLodCharacterShape::getUVs() const
|
|
{
|
|
if(_NumVertices==0)
|
|
return NULL;
|
|
|
|
return &_UVs[0];
|
|
}
|
|
|
|
// ***************************************************************************
|
|
const CVector *CLodCharacterShape::getNormals() const
|
|
{
|
|
if(_NumVertices==0)
|
|
return NULL;
|
|
|
|
return &_Normals[0];
|
|
}
|
|
|
|
|
|
|
|
// ***************************************************************************
|
|
// ***************************************************************************
|
|
// Bone Alpha Testing
|
|
// ***************************************************************************
|
|
// ***************************************************************************
|
|
|
|
|
|
// ***************************************************************************
|
|
void CLodCharacterShape::startBoneAlpha(std::vector<uint8> &tmpAlphas) const
|
|
{
|
|
// clear
|
|
tmpAlphas.clear();
|
|
// alocate, and fill
|
|
tmpAlphas.resize(getNumVertices(), 0);
|
|
}
|
|
|
|
// ***************************************************************************
|
|
void CLodCharacterShape::addBoneAlpha(uint boneId, std::vector<uint8> &tmpAlphas) const
|
|
{
|
|
// Yoyo: This is an error to not have the same skeleton that the one stored in the lod shape. But must not crash
|
|
if(boneId>=_Bones.size())
|
|
return;
|
|
const CBoneInfluence &bone= _Bones[boneId];
|
|
|
|
// for all vertices influenced by this bone, must set the alpha to full
|
|
for(uint i=0; i<bone.InfVertices.size(); i++)
|
|
{
|
|
const CVertexInf &vInf= bone.InfVertices[i];
|
|
tmpAlphas[vInf.VertexId]= 255;
|
|
}
|
|
}
|
|
|
|
|
|
} // NL3D
|