353 lines
11 KiB
C
353 lines
11 KiB
C
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/****************************************************************************
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Copyright (c) 2011-2013,WebJet Business Division,CYOU
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http://www.genesis-3d.com.cn
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#ifndef __particlebillboardtarget_H__
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#define __particlebillboardtarget_H__
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#include "particles/particle_fwd_decl.h"
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#include "particles/particletarget.h"
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namespace Particles
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{
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class ParticleBillBoardTarget: public ParticleTarget
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{
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__DeclareSubClass(ParticleBillBoardTarget, ParticleTarget );
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public:
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ParticleBillBoardTarget();
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virtual ~ParticleBillBoardTarget();
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enum BillBoardType
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{
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Billboard_Camera = 0,
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Billboard_Camera_Y = 1,
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Billboard_XZ = 2,
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Billboard_ORIENTED_SELF = 3,
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Billboard_ORIENTED_DIR = 4,
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HorizontalPlane_XZ = 5,
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HorizontalPlane_YZ = 6,
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HorizontalPlane_XY = 7,
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};
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enum BillboardAlignType
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{
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CENTERALIGN = 0,
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TOPCENTERALIGN = 1,
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BOTTOMALIGN = 2,
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LEFTCENTERALIGN = 3,
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RIGHTCENTERALIGN = 4,
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ALIGNCOUNTS,
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};
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struct BillboardAlignWeight
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{
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float leftTopWeight_X,leftTopWeight_Y;
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float leftBottomWeight_X,leftBottomWeight_Y;
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float rightBottomWeight_X,rightBottomWeight_Y;
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float rightUpWeight_X,rightUpWeight_Y;
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};
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static BillboardAlignWeight alignType[ALIGNCOUNTS];
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class Camera_OP_PosAligned:public Camera_OP
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{
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public:
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void operator()(
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Particle* particle,
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const Math::float3& derivedPos,
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const Math::float3& lastDerivedPos,
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ParticleVertexData* particleVertex,
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ushort* indicies) const
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{
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Math::float3 dir = cameraPos - derivedPos ;
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dir.normalise();
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Math::float3 upVec;
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Math::scalar stretch;
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if ( ot == OT_DIRECT)
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{
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upVec = derivedPos-lastDerivedPos;
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upVec = upVec.transformVector(parentMatrix);
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stretch = upStretch;
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}
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else
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{
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upVec = upVector;
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stretch = 1.0f;
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}
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upVec.normalise();
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Math::float3 rightVector =upVec.crossProduct( dir );
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rightVector.normalise();
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upVec = upVec * parentScale;
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rightVector = rightVector * parentScale;
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Math::float3 up = upVec * particle->mSize.y() * 0.5 * stretch;
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Math::float3 right = rightVector * particle->mSize.x() * 0.5;
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particleVertex[0].mPosition = derivedPos + ParticleBillBoardTarget::alignType[bat].leftTopWeight_X * up + right * ParticleBillBoardTarget::alignType[bat].leftTopWeight_Y;
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particleVertex[0].mNormal = dir;
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particleVertex[1].mPosition = derivedPos + ParticleBillBoardTarget::alignType[bat].leftBottomWeight_X * up + right * ParticleBillBoardTarget::alignType[bat].leftBottomWeight_Y;
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particleVertex[1].mNormal = dir;
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particleVertex[2].mPosition = derivedPos + ParticleBillBoardTarget::alignType[bat].rightBottomWeight_X * up + right * ParticleBillBoardTarget::alignType[bat].rightBottomWeight_Y;
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particleVertex[2].mNormal = dir;
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particleVertex[3].mPosition = derivedPos + ParticleBillBoardTarget::alignType[bat].rightUpWeight_X*up + right * ParticleBillBoardTarget::alignType[bat].rightUpWeight_Y;
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particleVertex[3].mNormal = dir;
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}
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ParticleBillBoardTarget::BillboardAlignType bat;
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Math::matrix44 parentMatrix;
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Math::float3 parentScale;
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};
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class BillBoard_XZ_PosAligned_OP:public BillBoard_XZ_OP
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{
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public:
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void operator()(
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Particle* particle,
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const Math::float3& derivedPos,
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const Math::float3& lastDerivedPos,
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ParticleVertexData* particleVertex,
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ushort* indicies) const
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{
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Math::float3 xOff(1.0, 0.0, 0.0);
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Math::float3 zOff(0.0, 0.0, 1.0);
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Math::float3 up,right;
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if ( ot == OT_DIRECT)
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{
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Math::float3 dir = derivedPos-lastDerivedPos;
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if (dir.length() > 0.00001F)
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{
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dir.y() = 0.0;
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dir.normalise();
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xOff = dir;
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zOff.x() = -xOff.z();
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zOff.z() = xOff.x();
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}
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}
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xOff *= ( particle->mSize.x() * 0.5f );
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zOff *= ( particle->mSize.y() * 0.5f );
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up = zOff * parentScale;
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right = xOff * parentScale;
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particleVertex[0].mPosition = derivedPos + ParticleBillBoardTarget::alignType[bat].leftTopWeight_X * up + right * ParticleBillBoardTarget::alignType[bat].leftTopWeight_Y;
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particleVertex[0].mNormal.set(0.0, -1.0, 0.0);
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particleVertex[1].mPosition = derivedPos + ParticleBillBoardTarget::alignType[bat].leftBottomWeight_X * up + right * ParticleBillBoardTarget::alignType[bat].leftBottomWeight_Y;
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particleVertex[1].mNormal.set(0.0, -1.0, 0.0);
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particleVertex[2].mPosition = derivedPos + ParticleBillBoardTarget::alignType[bat].rightBottomWeight_X * up + right * ParticleBillBoardTarget::alignType[bat].rightBottomWeight_Y;
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particleVertex[2].mNormal.set(0.0, -1.0, 0.0);
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particleVertex[3].mPosition = derivedPos + ParticleBillBoardTarget::alignType[bat].rightUpWeight_X*up + right * ParticleBillBoardTarget::alignType[bat].rightUpWeight_Y;
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particleVertex[3].mNormal.set(0.0, -1.0, 0.0);
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}
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ParticleBillBoardTarget::BillboardAlignType bat;
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Math::float3 parentScale;
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};
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class HorizontalPlane_OP
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{
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public:
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enum ALignType
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{
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ALIGN_XZ,
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ALIGN_YZ,
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ALIGN_XY,
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};
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void operator()(
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Particle* particle,
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const Math::float3& derivedPos,
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const Math::float3& lastDerivedPos,
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ParticleVertexData* particleVertex,
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ushort* indicies) const
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{
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const float offset[10] =
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{
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0.0,0.0,
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-0.5f,0.0,
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0.5f,0.0,
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0.0,0.5f,
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0.0,-0.5f,
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};
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Math::float4 _scale(0.5f*particle->mSize.x()*parentScale.x(),
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0.5f*particle->mSize.y()*parentScale.y(),
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0.5f*particle->mSize.z()*parentScale.z(),
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0);
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Math::float3 _axis(0,0,1);
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_axis = parentQuaternion * _axis;
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Math::quaternion _rq = Math::quaternion::rotationaxis( Math::float4(_axis.x(),_axis.y(),_axis.z(),1.0f) , particle->mZRotation );
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Math::quaternion finalQ = Math::quaternion::multiply(_rq, parentQuaternion ) ;
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Math::float4 _pos(derivedPos.x(),derivedPos.y(),derivedPos.z(),0);
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Math::matrix44 _mat = Math::matrix44::transformation(_scale, finalQ, _pos);
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Math::float3 vertex0,vertex1,vertex2,vertex3,normal0;
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Math::matrix44 offsetTransform;
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if (bt == ALIGN_XZ)
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{
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vertex0 = Math::float3(-0.5,0.0,0.5);
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vertex1 = Math::float3(-0.5,0.0,-0.5);
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vertex2 = Math::float3(0.5,0.0,-0.5);
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vertex3 = Math::float3(0.5,0.0,0.5);
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offsetTransform= Math::matrix44::translation(offset[bat*2],0.0,offset[bat*2+1]);
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normal0 = Math::float3(0.0,-1.0,0.0);
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}
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else if (bt == ALIGN_XY)
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{
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vertex0 = Math::float3(-0.5,0.5,0.0);
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vertex1 = Math::float3(-0.5,-0.5,0.0);
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vertex2 = Math::float3(0.5,-0.5,0.0);
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vertex3 = Math::float3(0.5,0.5,0.0);
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offsetTransform = Math::matrix44::translation(offset[bat*2],offset[bat*2+1],0.0);
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normal0 = Math::float3(0.0,0.0,-1.0);
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}
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else
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{
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vertex0 = Math::float3(0.0,-0.5,0.5);
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vertex1 = Math::float3(0.0,-0.5,-0.5);
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vertex2 = Math::float3(0.0,0.5,-0.5);
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vertex3 = Math::float3(0.0,0.5,0.5);
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offsetTransform = Math::matrix44::translation(0.0,offset[bat*2],offset[bat*2+1]);
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normal0 = Math::float3(-1.0,0.0,0.0);
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}
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_mat = Math::matrix44::multiply(_mat,offsetTransform);
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particleVertex[0].mPosition = vertex0.transformPoint(_mat);
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particleVertex[1].mPosition = vertex1.transformPoint(_mat);
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particleVertex[2].mPosition = vertex2.transformPoint(_mat);
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particleVertex[3].mPosition = vertex3.transformPoint(_mat);
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particleVertex[0].mNormal = normal0.transformVector(_mat);
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particleVertex[1].mNormal = particleVertex[0].mNormal;
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particleVertex[2].mNormal = particleVertex[0].mNormal;
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particleVertex[3].mNormal = particleVertex[0].mNormal;
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}
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ALignType bt;
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BillboardAlignType bat;
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Math::quaternion parentQuaternion;
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Math::float3 parentScale;
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};
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void SetBillBoardType( BillBoardType t);
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BillBoardType GetBillBoardType(void) const;
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void SetBillBoardAlignType( BillboardAlignType bat );
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BillboardAlignType GetBillBoardAlignType(void) const;
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virtual ParticleTarget::TargetType GetTargetType(void) const;
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virtual void _updateTarget(GPtr<ParticlePool>& pool, Timing::Time frameTime);
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bool _preparePrimitiveGroup(SizeT& verticesSizeInByte, SizeT& indicesSizeInByte);
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void _updateParticle_Common( Particle* particle, ParticleVertexData* particleVertex, ushort* indicies , IndexT particleIndex);
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template<typename T>
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SizeT _updateTarget_BillBoard(GPtr<ParticlePool>& pool, ParticleVertexData* particleVertex, ushort* indicies, const T& op, bool isRotated = true);
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protected:
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BillBoardType mBillBoardType;
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BillboardAlignType mBillBoardAlignType;
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public:
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// @ISerialization::GetVersion. when change storage, must add SerializeSVersion count
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virtual Serialization::SVersion GetVersion() const;
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// @ISerialization::Load
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virtual void Load( Serialization::SVersion ver, Serialization::SerializeReader* pReader, const Serialization::SerializationArgs* args );
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// @ISerialization::Save
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virtual void Save( Serialization::SerializeWriter* pWriter ) const;
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// copy
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virtual void CopyFrom( const ParticleTargetPtr& target );
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};
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//------------------------------------------------------------------------
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inline
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void
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ParticleBillBoardTarget::SetBillBoardType( BillBoardType t)
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{
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mBillBoardType = t;
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}
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//------------------------------------------------------------------------
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inline
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ParticleBillBoardTarget::BillBoardType
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ParticleBillBoardTarget::GetBillBoardType(void) const
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{
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return mBillBoardType;
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}
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//------------------------------------------------------------------------
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inline
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ParticleTarget::TargetType
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ParticleBillBoardTarget::GetTargetType(void) const
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{
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return ParticleTarget::BillBoard;
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}
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//------------------------------------------------------------------------
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inline
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void
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ParticleBillBoardTarget::SetBillBoardAlignType( BillboardAlignType bat )
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{
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mBillBoardAlignType = bat;
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}
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//------------------------------------------------------------------------
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inline
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ParticleBillBoardTarget::BillboardAlignType
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ParticleBillBoardTarget::GetBillBoardAlignType(void) const
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{
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return mBillBoardAlignType;
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}
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}
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#endif // __particlebillboardtarget_H__
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