void QuadParticleSystemDrawer::fill(DrawableStatsAttachment *pStat, ParticleSystemUnrecPtr System, const MFUInt32& Sort) { if(pStat == NULL) { FINFO(("QuadParticleSystemDrawer::fill(DrawableStatsAttachment *, ParticleSystemUnrecPtr , const MFUInt32& ): " "No attachment given.\n")); return; } if(System == NULL) { FINFO(("QuadParticleSystemDrawer::fill(DrawableStatsAttachment *, ParticleSystemUnrecPtr , const MFUInt32& ): " "Particle System is NULL.\n")); return; } UInt32 NumParticles; if(Sort.size() > 0) { NumParticles = Sort.size(); } else { NumParticles = System->getNumParticles(); } pStat->setVertices(4*NumParticles); pStat->setTriangles(2*NumParticles); pStat->setValid(true); }
void LineParticleSystemDrawer::adjustVolume(ParticleSystemUnrecPtr System, Volume & volume) { UInt32 NumParticles = System->getNumParticles(); for(UInt32 i(0) ; i<NumParticles ; ++i) { volume.extendBy(System->getPosition(i)); volume.extendBy(getLineEndpoint(System, i)); } }
Action::ResultE QuadParticleSystemDrawer::draw(DrawEnv *pEnv, ParticleSystemUnrecPtr System, const MFUInt32& Sort) { bool isSorted(Sort.size() > 0); UInt32 NumParticles; if(isSorted) { NumParticles = Sort.size(); } else { NumParticles = System->getNumParticles(); } Pnt3f P1,P2,P3,P4; UInt32 Index; //Calculate the CameraToObject basis Matrix WorldToObject(pEnv->getObjectToWorld()); WorldToObject.invert(); Matrix CameraToObject(pEnv->getCameraToWorld()); CameraToObject.mult(WorldToObject); glBegin(GL_QUADS); for(UInt32 i(0); i<NumParticles;++i) { if(isSorted) { Index = Sort[i]; } else { Index = i; } //Loop through all particles //Get The Normal of the Particle Vec3f Normal = getQuadNormal(pEnv, System, Index, CameraToObject); //Calculate the Binormal as the cross between Normal and Up Vec3f Binormal = getQuadUpDir(pEnv, System, Index, CameraToObject).cross(Normal); //Get the Up Direction of the Particle Vec3f Up = Normal.cross(Binormal); //Determine Local Space of the Particle //This is where error occurs Pnt3f Position = System->getPosition(Index); //Determine the Width and Height of the quad Real32 Width = System->getSize(Index).x()*getQuadSizeScaling().x(),Height =System->getSize(Index).y()*getQuadSizeScaling().y(); //Calculate Quads positions P1 = Position + (Width/2.0f)*Binormal + (Height/2.0f)*Up; P2 = Position + (Width/2.0f)*Binormal - (Height/2.0f)*Up; P3 = Position - (Width/2.0f)*Binormal - (Height/2.0f)*Up; P4 = Position - (Width/2.0f)*Binormal + (Height/2.0f)*Up; //Draw the Quad glNormal3fv(Normal.getValues()); glColor4fv(System->getColor(Index).getValuesRGBA()); glTexCoord2f(1.0, 1.0); glVertex3fv(P1.getValues()); glTexCoord2f(0.0, 1.0); glVertex3fv(P4.getValues()); glTexCoord2f(0.0, 0.0); glVertex3fv(P3.getValues()); glTexCoord2f(1.0, 0.0); glVertex3fv(P2.getValues()); } glColor4f(1.0f,1.0f,1.0f,1.0f); glEnd(); //Generate a local space for the particle return Action::Continue; }
Action::ResultE LineParticleSystemDrawer::draw(DrawEnv *pEnv, ParticleSystemUnrecPtr System, const MFUInt32& Sort) { UInt32 NumParticles(System->getNumParticles()); bool areEndpointsFadeSame(getEndPointFading().x() == getEndPointFading().y()); Color4f Color; if(NumParticles != 0) { bool SeparateColors(System->getNumColors() > 1); bool SeparateSizes(System->getNumSizes() > 1); bool SeparateNormals(System->getNumNormals() > 1); glBegin(GL_LINES); //Colors if(!SeparateColors && areEndpointsFadeSame) { Color = System->getColor(0); glColor4f(Color.red(), Color.green(), Color.blue(), Color.alpha() * getEndPointFading().x()); } //Sizes if(!SeparateSizes) { //glColor4fv(System->getColor(0).getValuesRGBA()); } //Normals if(!SeparateNormals) { glNormal3fv(System->getNormal(0).getValues()); } for(UInt32 i(0) ; i<NumParticles ; ++i) { //Start Color if(SeparateColors) { Color = System->getColor(i); glColor4f(Color.red(), Color.green(), Color.blue(), Color.alpha() * getEndPointFading().x()); } else if(!SeparateColors && !areEndpointsFadeSame) { Color = System->getColor(0); glColor4f(Color.red(), Color.green(), Color.blue(), Color.alpha() * getEndPointFading().x()); } //Sizes if(SeparateSizes) { //glColor4fv(System->getColor(i).getValuesRGBA()); } //Normals if(SeparateNormals) { glNormal3fv(System->getNormal(i).getValues()); } //Positions glVertex3fv(System->getPosition(i).getValues()); //End Color if(SeparateColors && !areEndpointsFadeSame) { Color = System->getColor(i); glColor4f(Color.red(), Color.green(), Color.blue(), Color.alpha() * getEndPointFading().y()); } else if(!SeparateColors && !areEndpointsFadeSame) { Color = System->getColor(0); glColor4f(Color.red(), Color.green(), Color.blue(), Color.alpha() * getEndPointFading().y()); } glVertex3fv(getLineEndpoint(System, i).getValues()); } glEnd(); } return Action::Continue; }