mirror of
https://port.numenaute.org/aleajactaest/khanat-code-old.git
synced 2024-10-01 22:38:30 +00:00
333 lines
9.2 KiB
C++
333 lines
9.2 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/mesh_multi_lod_instance.h"
|
|
#include "nel/3d/mesh_multi_lod.h"
|
|
#include "nel/3d/coarse_mesh_manager.h"
|
|
#include "nel/3d/scene.h"
|
|
|
|
#include "nel/misc/debug.h"
|
|
|
|
using namespace NLMISC;
|
|
|
|
namespace NL3D
|
|
{
|
|
|
|
// ***************************************************************************
|
|
|
|
CMeshMultiLodInstance::CMeshMultiLodInstance ()
|
|
{
|
|
// No flags
|
|
Flags=0;
|
|
_CoarseMeshDistance = -1.f;
|
|
_LastCoarseMesh= NULL;
|
|
_LastCoarseMeshNumVertices= 0;
|
|
}
|
|
|
|
// ***************************************************************************
|
|
|
|
CMeshMultiLodInstance::~CMeshMultiLodInstance ()
|
|
{
|
|
}
|
|
|
|
|
|
// ***************************************************************************
|
|
|
|
void CMeshMultiLodInstance::registerBasic()
|
|
{
|
|
CScene::registerModel (MeshMultiLodInstanceId, MeshBaseInstanceId, CMeshMultiLodInstance::creator);
|
|
}
|
|
|
|
|
|
// ***************************************************************************
|
|
CRGBA CMeshMultiLodInstance::getCoarseMeshLighting()
|
|
{
|
|
CScene *scene= getOwnerScene();
|
|
nlassert(scene);
|
|
|
|
// compute his sun contribution result, and update
|
|
CRGBA sunContrib= scene->getSunDiffuse();
|
|
// simulate/average diffuse lighting over the mesh by dividing diffuse by 2.
|
|
sunContrib.modulateFromuiRGBOnly(sunContrib, getLightContribution().SunContribution/2 );
|
|
// Add Ambient
|
|
sunContrib.addRGBOnly(sunContrib, scene->getSunAmbient());
|
|
sunContrib.A= 255;
|
|
|
|
return sunContrib;
|
|
}
|
|
|
|
|
|
// ***************************************************************************
|
|
|
|
void CMeshMultiLodInstance::traverseLoadBalancing()
|
|
{
|
|
// Call previous
|
|
CMeshBaseInstance::traverseLoadBalancing ();
|
|
|
|
// If this is the second pass of LoadBalancing, choose the Lods, according to getNumTrianglesAfterLoadBalancing()
|
|
CLoadBalancingTrav &loadTrav= getOwnerScene()->getLoadBalancingTrav();
|
|
if(loadTrav.getLoadPass()==1)
|
|
{
|
|
// Get a pointer on the shape
|
|
CMeshMultiLod *shape=safe_cast<CMeshMultiLod*> ((IShape*)Shape);
|
|
|
|
// Reset render pass
|
|
if (!getBypassLODOpacityFlag())
|
|
{
|
|
setTransparency(false);
|
|
setOpacity(false);
|
|
}
|
|
|
|
// Get the wanted number of polygons
|
|
float polygonCount= getNumTrianglesAfterLoadBalancing ();
|
|
|
|
// Look for the good slot
|
|
uint meshCount=(uint)shape->_MeshVector.size();
|
|
Lod0=0;
|
|
if (meshCount>1)
|
|
{
|
|
// Look for good i
|
|
while ( polygonCount < shape->_MeshVector[Lod0].EndPolygonCount )
|
|
{
|
|
Lod0++;
|
|
if (Lod0==meshCount-1)
|
|
break;
|
|
}
|
|
}
|
|
|
|
// The slot
|
|
CMeshMultiLod::CMeshSlot &slot=shape->_MeshVector[Lod0];
|
|
|
|
// Get the distance with polygon count
|
|
float distance=(polygonCount-slot.B)/slot.A;
|
|
|
|
// Get the final polygon count
|
|
if (slot.MeshGeom)
|
|
PolygonCountLod0=slot.MeshGeom->getNumTriangles (distance);
|
|
|
|
// Second slot in use ?
|
|
Lod1=0xffffffff;
|
|
|
|
// The next slot
|
|
CMeshMultiLod::CMeshSlot *nextSlot=NULL;
|
|
|
|
// Next slot exist ?
|
|
if (Lod0!=meshCount-1)
|
|
{
|
|
nextSlot=&(shape->_MeshVector[Lod0+1]);
|
|
}
|
|
|
|
// Max dist before blend
|
|
float startBlend;
|
|
if (nextSlot)
|
|
startBlend=slot.DistMax-nextSlot->BlendLength;
|
|
else
|
|
startBlend=slot.DistMax-slot.BlendLength;
|
|
|
|
// In blend zone ?
|
|
if ( startBlend < distance )
|
|
{
|
|
// Alpha factor for main Lod
|
|
BlendFactor = (slot.DistMax-distance)/(slot.DistMax-startBlend);
|
|
if (BlendFactor<0)
|
|
BlendFactor=0;
|
|
nlassert (BlendFactor<=1);
|
|
|
|
// Render this mesh
|
|
if (slot.MeshGeom)
|
|
{
|
|
if (slot.Flags&CMeshMultiLod::CMeshSlot::BlendOut)
|
|
{
|
|
// Render the geom mesh with alpha blending with goodPolyCount
|
|
if (!getBypassLODOpacityFlag()) setTransparency(true);
|
|
Flags|=CMeshMultiLodInstance::Lod0Blend;
|
|
}
|
|
else
|
|
{
|
|
// Render the geom mesh without alpha blending with goodPolyCount
|
|
if (!getBypassLODOpacityFlag()) setTransparency (slot.isTransparent());
|
|
setOpacity (slot.isOpaque());
|
|
Flags&=~CMeshMultiLodInstance::Lod0Blend;
|
|
}
|
|
}
|
|
else
|
|
Lod0=0xffffffff;
|
|
|
|
// Next mesh, BlendIn actived ?
|
|
if (nextSlot && shape->_MeshVector[Lod0+1].MeshGeom && (nextSlot->Flags&CMeshMultiLod::CMeshSlot::BlendIn))
|
|
{
|
|
// Render the geom mesh with alpha blending with nextSlot->BeginPolygonCount
|
|
PolygonCountLod1=nextSlot->MeshGeom->getNumTriangles (distance);
|
|
Lod1=Lod0+1;
|
|
if (!getBypassLODOpacityFlag()) setTransparency(true);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (slot.MeshGeom)
|
|
{
|
|
// Render without blend with goodPolyCount
|
|
if (!getBypassLODOpacityFlag())
|
|
{
|
|
setTransparency (slot.isTransparent());
|
|
setOpacity (slot.isOpaque());
|
|
}
|
|
Flags&=~CMeshMultiLodInstance::Lod0Blend;
|
|
}
|
|
else
|
|
Lod0=0xffffffff;
|
|
}
|
|
|
|
|
|
}
|
|
}
|
|
|
|
// ***************************************************************************
|
|
void CMeshMultiLodInstance::changeMRMDistanceSetup(float distanceFinest, float distanceMiddle, float distanceCoarsest)
|
|
{
|
|
if(Shape)
|
|
{
|
|
// Get a pointer on the shape.
|
|
CMeshMultiLod *pMesh =safe_cast<CMeshMultiLod*> ((IShape*)Shape);
|
|
// Affect the mesh directly.
|
|
pMesh->changeMRMDistanceSetup(distanceFinest, distanceMiddle, distanceCoarsest);
|
|
}
|
|
}
|
|
|
|
|
|
// ***************************************************************************
|
|
float CMeshMultiLodInstance::getNumTriangles (float distance)
|
|
{
|
|
CMeshMultiLod *shape = safe_cast<CMeshMultiLod*> ((IShape*)Shape);
|
|
return shape->getNumTrianglesWithCoarsestDist(distance, _CoarseMeshDistance);
|
|
}
|
|
|
|
|
|
// ***************************************************************************
|
|
void CMeshMultiLodInstance::initRenderFilterType()
|
|
{
|
|
if(Shape)
|
|
{
|
|
CMeshMultiLod *shape = safe_cast<CMeshMultiLod*> ((IShape*)Shape);
|
|
|
|
// Look only the First LOD to know if it has a VP or not
|
|
bool hasVP= false;
|
|
bool coarseMesh;
|
|
if(shape->getNumSlotMesh()>0 && shape->getSlotMesh(0, coarseMesh))
|
|
{
|
|
IMeshGeom *meshGeom= shape->getSlotMesh(0, coarseMesh);
|
|
// hasVP possible only if not a coarseMesh.
|
|
if(!coarseMesh)
|
|
hasVP= meshGeom->hasMeshVertexProgram();
|
|
}
|
|
|
|
if(hasVP)
|
|
_RenderFilterType= UScene::FilterMeshLodVP;
|
|
else
|
|
_RenderFilterType= UScene::FilterMeshLodNoVP;
|
|
}
|
|
}
|
|
|
|
|
|
// ***************************************************************************
|
|
void CMeshMultiLodInstance::setUVCoarseMesh( CMeshGeom &geom, uint vtDstSize, uint dstUvOff )
|
|
{
|
|
// *** Copy UVs to the vertices
|
|
|
|
// Src vertex buffer
|
|
const CVertexBuffer &vbSrc=geom.getVertexBuffer();
|
|
CVertexBufferRead vba;
|
|
vbSrc.lock (vba);
|
|
|
|
// Check the vertex format and src Vertices
|
|
nlassert (vbSrc.getVertexFormat() & (CVertexBuffer::PositionFlag|CVertexBuffer::TexCoord0Flag) );
|
|
nlassert (vbSrc.getNumVertices()==_LastCoarseMeshNumVertices);
|
|
|
|
// src Vertex size
|
|
uint vtSrcSize=vbSrc.getVertexSize ();
|
|
|
|
// Copy vector
|
|
const uint8 *vSrc = (const uint8 *)vba.getTexCoordPointer(0,0);
|
|
uint8 *vDest = &_CoarseMeshVB[0];
|
|
vDest+= dstUvOff;
|
|
|
|
// Transform it
|
|
for (uint i=0; i<_LastCoarseMeshNumVertices; i++)
|
|
{
|
|
// Transform position
|
|
*(CUV*)vDest = *(const CUV*)vSrc;
|
|
|
|
// Next point
|
|
vSrc+=vtSrcSize;
|
|
vDest+=vtDstSize;
|
|
}
|
|
}
|
|
// ***************************************************************************
|
|
void CMeshMultiLodInstance::setPosCoarseMesh( CMeshGeom &geom, const CMatrix &matrix, uint vtDstSize )
|
|
{
|
|
// *** Transform the vertices
|
|
|
|
// Src vertex buffer
|
|
const CVertexBuffer &vbSrc=geom.getVertexBuffer();
|
|
CVertexBufferRead vba;
|
|
vbSrc.lock (vba);
|
|
|
|
// Check the vertex format and src Vertices
|
|
nlassert (vbSrc.getVertexFormat() & (CVertexBuffer::PositionFlag|CVertexBuffer::TexCoord0Flag) );
|
|
nlassert (vbSrc.getNumVertices()==_LastCoarseMeshNumVertices);
|
|
|
|
// src Vertex size
|
|
uint vtSrcSize=vbSrc.getVertexSize ();
|
|
|
|
// Copy vector
|
|
const uint8 *vSrc = (const uint8 *)vba.getVertexCoordPointer (0);
|
|
uint8 *vDest = &_CoarseMeshVB[0];
|
|
|
|
// Transform it
|
|
for (uint i=0; i<_LastCoarseMeshNumVertices; i++)
|
|
{
|
|
// Transform position
|
|
*(CVector*)vDest = matrix.mulPoint (*(const CVector*)vSrc);
|
|
|
|
// Next point
|
|
vSrc+=vtSrcSize;
|
|
vDest+=vtDstSize;
|
|
}
|
|
}
|
|
// ***************************************************************************
|
|
void CMeshMultiLodInstance::setColorCoarseMesh( CRGBA color, uint vtDstSize, uint dstColorOff )
|
|
{
|
|
// *** Copy color to vertices
|
|
|
|
// Copy vector
|
|
uint8 *vDest = &_CoarseMeshVB[0];
|
|
vDest+= dstColorOff;
|
|
|
|
// Transform it
|
|
for (uint i=0; i<_LastCoarseMeshNumVertices; i++)
|
|
{
|
|
// Transform position
|
|
*(CRGBA*)vDest = color;
|
|
|
|
// Next point
|
|
vDest+=vtDstSize;
|
|
}
|
|
}
|
|
|
|
|
|
} // NL3D
|