// ----------------------------------------------------------------------------
CMeshBuffer<S3DVertex2TCoords>* Terrain::build(path p)
{
IrrlichtDevice* device = Editor::getEditor()->getDevice();
CMeshBuffer<S3DVertex2TCoords>* mb = new CMeshBuffer<S3DVertex2TCoords>();
mb->Vertices.reallocate(m_mesh.vertex_count);
mb->Indices.reallocate(m_mesh.quad_count * 6);
for (u32 i = 0; i < m_mesh.vertex_count; i++)
mb->Vertices.push_back(m_mesh.vertices[i]);
for (u32 i = 0; i < m_mesh.quad_count * 6; i++)
mb->Indices.push_back(m_mesh.indices[i]);
mb->recalculateBoundingBox();
mb->Material = m_material;
ITexture* texture = m_material.getTexture(1);
IImage* image = device->getVideoDriver()->createImage(texture, position2di(0, 0),
texture->getSize());
stringc name = p + "/splatt.png";
device->getVideoDriver()->writeImageToFile(image, name.c_str());
image->drop();
return mb;
} // build
IAnimatedMesh* CMY3DMeshFileLoader::createMesh(io::IReadFile* file)
{
MaterialEntry.clear();
MeshBufferEntry.clear();
ChildNodes.clear();
// working directory (from which we load the scene)
core::stringc filepath = FileSystem->getFileDir(file->getFileName());
if (filepath==".")
filepath="";
else
filepath.append("/");
// read file into memory
SMyFileHeader fileHeader;
file->read(&fileHeader, sizeof(SMyFileHeader));
#ifdef __BIG_ENDIAN__
fileHeader.MyId = os::Byteswap::byteswap(fileHeader.MyId);
fileHeader.Ver = os::Byteswap::byteswap(fileHeader.Ver);
#endif
if (fileHeader.MyId!=MY3D_ID || fileHeader.Ver!=MY3D_VER)
{
os::Printer::log("Bad MY3D file header, loading failed!", ELL_ERROR);
return 0;
}
u16 id;
file->read(&id, sizeof(id));
#ifdef __BIG_ENDIAN__
id = os::Byteswap::byteswap(id);
#endif
if (id!=MY3D_SCENE_HEADER_ID)
{
os::Printer::log("Cannot find MY3D_SCENE_HEADER_ID, loading failed!", ELL_ERROR);
return 0;
}
SMySceneHeader sceneHeader;
file->read(&sceneHeader, sizeof(SMySceneHeader));
#ifdef __BIG_ENDIAN__
sceneHeader.MaterialCount = os::Byteswap::byteswap(sceneHeader.MaterialCount);
sceneHeader.MeshCount = os::Byteswap::byteswap(sceneHeader.MeshCount);
#endif
file->read(&id, sizeof(id));
#ifdef __BIG_ENDIAN__
id = os::Byteswap::byteswap(id);
#endif
if (id!=MY3D_MAT_LIST_ID)
{
os::Printer::log("Can not find MY3D_MAT_LIST_ID, loading failed!", ELL_ERROR);
return 0;
}
core::stringc texturePath =
SceneManager->getParameters()->getAttributeAsString(MY3D_TEXTURE_PATH);
file->read(&id, sizeof(id));
#ifdef __BIG_ENDIAN__
id = os::Byteswap::byteswap(id);
#endif
c8 namebuf[256];
for (s32 m=0; m<sceneHeader.MaterialCount; ++m)
{
if (id != MY3D_MAT_HEADER_ID)
{
os::Printer::log("Cannot find MY3D_MAT_HEADER_ID, loading failed!", ELL_ERROR);
return 0;
}
// read material header
MaterialEntry.push_back(SMyMaterialEntry());
SMyMaterialEntry& me=MaterialEntry.getLast();
file->read(&(me.Header), sizeof(SMyMaterialHeader));
// read next identificator
file->read(&id, sizeof(id));
#ifdef __BIG_ENDIAN__
id = os::Byteswap::byteswap(id);
#endif
bool gotLightMap=false, gotMainMap=false;
for (u32 t=0; t<me.Header.TextureCount; ++t)
{
if (id==MY3D_TEX_FNAME_ID)
file->read(namebuf, 256);
else
{
me.Texture2 = readEmbeddedLightmap(file, namebuf);
if (!me.Texture2)
return 0;
gotLightMap = true;
}
const core::stringc name(namebuf);
const s32 pos = name.findLast('.');
const core::stringc LightingMapStr = "LightingMap";
const s32 ls = LightingMapStr.size();
const bool isSubString = (LightingMapStr == name.subString(core::max_(0, (pos - ls)), ls));
if ((isSubString || (name[pos-1]=='m' &&
name[pos-2]=='l' && name[pos-3]=='_')) &&
!gotLightMap)
{
const bool oldMipMapState = SceneManager->getVideoDriver()->getTextureCreationFlag(video::ETCF_CREATE_MIP_MAPS);
SceneManager->getVideoDriver()->setTextureCreationFlag(video::ETCF_CREATE_MIP_MAPS, false);
me.Texture2FileName = texturePath.size() ? texturePath : filepath;
me.Texture2FileName.append("Lightmaps/");
me.Texture2FileName.append(name);
if (name.size())
me.Texture2 = SceneManager->getVideoDriver()->getTexture(me.Texture2FileName);
me.MaterialType = video::EMT_LIGHTMAP_M2;
gotLightMap = true;
SceneManager->getVideoDriver()->setTextureCreationFlag(video::ETCF_CREATE_MIP_MAPS, oldMipMapState);
}
else
if (!gotLightMap && gotMainMap)
{
me.Texture2FileName = texturePath.size() ? texturePath : filepath;
me.Texture2FileName.append(name);
if (name.size())
me.Texture2 = SceneManager->getVideoDriver()->getTexture(me.Texture2FileName);
me.MaterialType = video::EMT_REFLECTION_2_LAYER;
}
else
if (!gotMainMap && !gotLightMap)
{
me.Texture1FileName = filepath;
me.Texture1FileName.append(name);
if (name.size())
me.Texture1 = SceneManager->getVideoDriver()->getTexture(me.Texture1FileName);
gotMainMap = true;
me.MaterialType = video::EMT_SOLID;
}
else
if (gotLightMap)
{
me.MaterialType = video::EMT_LIGHTMAP_M2;
}
file->read(&id, sizeof(id));
#ifdef __BIG_ENDIAN__
id = os::Byteswap::byteswap(id);
#endif
}
// override material types based on their names
if (!strncmp(me.Header.Name, "AlphaChannel-", 13))
me.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
else
if (!strncmp(me.Header.Name, "SphereMap-", 10))
me.MaterialType = video::EMT_SPHERE_MAP;
}
// loading meshes
if (id!=MY3D_MESH_LIST_ID)
{
os::Printer::log("Can not find MY3D_MESH_LIST_ID, loading failed!", ELL_ERROR);
return 0;
}
file->read(&id, sizeof(id));
#ifdef __BIG_ENDIAN__
id = os::Byteswap::byteswap(id);
#endif
for (s32 mesh_id=0; mesh_id<sceneHeader.MeshCount; mesh_id++)
{
// Warning!!! In some cases MY3D exporter uncorrectly calculates
// MeshCount (it's a problem, has to be solved) thats why
// i added this code line
if (id!=MY3D_MESH_HEADER_ID)
break;
if (id!=MY3D_MESH_HEADER_ID)
{
os::Printer::log("Can not find MY3D_MESH_HEADER_ID, loading failed!", ELL_ERROR);
return 0;
}
SMyMeshHeader meshHeader;
file->read(&meshHeader, sizeof(SMyMeshHeader));
core::array <SMyVertex> Vertex;
core::array <SMyFace> Face;
core::array <SMyTVertex> TVertex1, TVertex2;
core::array <SMyFace> TFace1, TFace2;
s32 vertsNum=0;
s32 facesNum=0;
// vertices
file->read(&id, sizeof(id));
#ifdef __BIG_ENDIAN__
id = os::Byteswap::byteswap(id);
#endif
if (id!=MY3D_VERTS_ID)
{
os::Printer::log("Can not find MY3D_VERTS_ID, loading failed!", ELL_ERROR);
return 0;
}
file->read(&vertsNum, sizeof(vertsNum));
Vertex.set_used(vertsNum);
file->read(Vertex.pointer(), sizeof(SMyVertex)*vertsNum);
// faces
file->read(&id, sizeof(id));
#ifdef __BIG_ENDIAN__
id = os::Byteswap::byteswap(id);
#endif
if (id!=MY3D_FACES_ID)
{
os::Printer::log("Can not find MY3D_FACES_ID, loading failed!", ELL_ERROR);
return 0;
}
file->read(&facesNum, sizeof(facesNum));
Face.set_used(facesNum);
file->read(Face.pointer(), sizeof(SMyFace)*facesNum);
// reading texture channels
for (s32 tex=0; tex<(s32)meshHeader.TChannelCnt; tex++)
{
// Max 2 texture channels allowed (but in format .my3d can be more)
s32 tVertsNum=0, tFacesNum=0;
// reading texture coords
file->read(&id, sizeof(id));
#ifdef __BIG_ENDIAN__
id = os::Byteswap::byteswap(id);
#endif
if (id!=MY3D_TVERTS_ID)
{
core::stringc msg="Can not find MY3D_TVERTS_ID (";
msg.append(core::stringc(tex));
msg.append("texture channel), loading failed!");
os::Printer::log(msg.c_str(), ELL_ERROR);
return 0;
}
file->read(&tVertsNum, sizeof(tVertsNum));
if (tex==0)
{
// 1st texture channel
TVertex1.set_used(tVertsNum);
file->read(TVertex1.pointer(), sizeof(SMyTVertex)*tVertsNum);
}
else
if (tex==1)
{
// 2nd texture channel
TVertex2.set_used(tVertsNum);
file->read(TVertex2.pointer(), sizeof(SMyTVertex)*tVertsNum);
}
else
{
// skip other texture channels
file->seek(file->getPos()+sizeof(SMyTVertex)*tVertsNum);
}
// reading texture faces
file->read(&id, sizeof(id));
#ifdef __BIG_ENDIAN__
id = os::Byteswap::byteswap(id);
#endif
if (id!=MY3D_TFACES_ID)
{
core::stringc msg="Can not find MY3D_TFACES_ID (";
msg.append(core::stringc(tex));
msg.append("texture channel), loading failed!");
os::Printer::log(msg.c_str(), ELL_ERROR);
return 0;
}
file->read(&tFacesNum, sizeof(tFacesNum));
if (tex==0)
{
// 1st texture channel
TFace1.set_used(tFacesNum);
file->read(TFace1.pointer(), sizeof(SMyFace)*tFacesNum);
}
else if (tex==1)
{
// 2nd texture channel
TFace2.set_used(tFacesNum);
file->read(TFace2.pointer(), sizeof(SMyFace)*tFacesNum);
}
else
{
// skip other texture channels
file->seek(file->getPos()+sizeof(SMyFace)*tFacesNum);
}
}
// trying to find material
SMyMaterialEntry* matEnt = getMaterialEntryByIndex(meshHeader.MatIndex);
// creating geometry for the mesh
// trying to find mesh buffer for this material
CMeshBuffer<video::S3DVertex2TCoords>* buffer = getMeshBufferByMaterialIndex(meshHeader.MatIndex);
if (!buffer ||
(buffer->getVertexBuffer()->getVertexCount()+vertsNum) > SceneManager->getVideoDriver()->getMaximalPrimitiveCount())
{
// creating new mesh buffer for this material
buffer = new CMeshBuffer<video::S3DVertex2TCoords>(SceneManager->getVideoDriver()->getVertexDescriptor(1));
buffer->Material.MaterialType = video::EMT_LIGHTMAP_M2; // EMT_LIGHTMAP_M4 also possible
buffer->Material.Wireframe = false;
buffer->Material.Lighting = false;
if (matEnt)
{
buffer->Material.MaterialType = matEnt->MaterialType;
if (buffer->Material.MaterialType == video::EMT_REFLECTION_2_LAYER)
{
buffer->Material.Lighting = true;
buffer->Material.setTexture(1, matEnt->Texture1);
buffer->Material.setTexture(0, matEnt->Texture2);
}
else
{
buffer->Material.setTexture(0, matEnt->Texture1);
buffer->Material.setTexture(1, matEnt->Texture2);
}
if (buffer->Material.MaterialType == video::EMT_TRANSPARENT_ALPHA_CHANNEL)
{
buffer->Material.BackfaceCulling = true;
buffer->Material.Lighting = true;
}
else
if (buffer->Material.MaterialType == video::EMT_SPHERE_MAP)
{
buffer->Material.Lighting = true;
}
buffer->Material.AmbientColor = video::SColor(
matEnt->Header.AmbientColor.A, matEnt->Header.AmbientColor.R,
matEnt->Header.AmbientColor.G, matEnt->Header.AmbientColor.B
);
buffer->Material.DiffuseColor = video::SColor(
matEnt->Header.DiffuseColor.A, matEnt->Header.DiffuseColor.R,
matEnt->Header.DiffuseColor.G, matEnt->Header.DiffuseColor.B
);
buffer->Material.EmissiveColor = video::SColor(
matEnt->Header.EmissiveColor.A, matEnt->Header.EmissiveColor.R,
matEnt->Header.EmissiveColor.G, matEnt->Header.EmissiveColor.B
);
buffer->Material.SpecularColor = video::SColor(
matEnt->Header.SpecularColor.A, matEnt->Header.SpecularColor.R,
matEnt->Header.SpecularColor.G, matEnt->Header.SpecularColor.B
);
}
else
{
buffer->Material.setTexture(0, 0);
buffer->Material.setTexture(1, 0);
buffer->Material.AmbientColor = video::SColor(255, 255, 255, 255);
buffer->Material.DiffuseColor = video::SColor(255, 255, 255, 255);
buffer->Material.EmissiveColor = video::SColor(0, 0, 0, 0);
buffer->Material.SpecularColor = video::SColor(0, 0, 0, 0);
}
if (matEnt && matEnt->Header.Transparency!=0)
{
if (buffer->Material.MaterialType == video::EMT_REFLECTION_2_LAYER )
{
buffer->Material.MaterialType = video::EMT_TRANSPARENT_REFLECTION_2_LAYER;
buffer->Material.Lighting = true;
buffer->Material.BackfaceCulling = true;
}
else
{
buffer->Material.MaterialType = video::EMT_TRANSPARENT_VERTEX_ALPHA;
buffer->Material.Lighting = false;
buffer->Material.BackfaceCulling = false;
}
}
else if (
!buffer->Material.getTexture(1) &&
buffer->Material.MaterialType != video::EMT_TRANSPARENT_ALPHA_CHANNEL &&
buffer->Material.MaterialType != video::EMT_SPHERE_MAP)
{
buffer->Material.MaterialType = video::EMT_SOLID;
buffer->Material.Lighting = true;
}
MeshBufferEntry.push_back(
SMyMeshBufferEntry(meshHeader.MatIndex, buffer));
}
video::S3DVertex2TCoords VertexA, VertexB, VertexC;
// vertices (A, B, C) color
video::SColor vert_color;
if (matEnt &&
(buffer->Material.MaterialType == video::EMT_TRANSPARENT_VERTEX_ALPHA ||
buffer->Material.MaterialType == video::EMT_TRANSPARENT_REFLECTION_2_LAYER))
{
video::SColor color(
matEnt->Header.DiffuseColor.A, matEnt->Header.DiffuseColor.R,
matEnt->Header.DiffuseColor.G, matEnt->Header.DiffuseColor.B);
vert_color = color.getInterpolated(video::SColor(0,0,0,0),
1-matEnt->Header.Transparency);
}
else
{
vert_color = buffer->Material.DiffuseColor;
}
VertexA.Color = VertexB.Color = VertexC.Color = vert_color;
if (buffer->Material.MaterialType == video::EMT_TRANSPARENT_ALPHA_CHANNEL)
{
buffer->getIndexBuffer()->reallocate(buffer->getIndexBuffer()->getIndexCount()+6*facesNum);
buffer->getVertexBuffer()->reallocate(buffer->getVertexBuffer()->getVertexCount()+6*facesNum);
}
else
{
buffer->getIndexBuffer()->reallocate(buffer->getIndexBuffer()->getIndexCount()+3*facesNum);
buffer->getVertexBuffer()->reallocate(buffer->getVertexBuffer()->getVertexCount()+3*facesNum);
}
for (int f=0; f<facesNum; f++)
{
// vertex A
VertexA.Pos.X = Vertex[Face[f].C].Coord.X;
VertexA.Pos.Y = Vertex[Face[f].C].Coord.Y;
VertexA.Pos.Z = Vertex[Face[f].C].Coord.Z;
VertexA.Normal.X = Vertex[Face[f].C].Normal.X;
VertexA.Normal.Y = Vertex[Face[f].C].Normal.Y;
VertexA.Normal.Z = Vertex[Face[f].C].Normal.Z;
if (meshHeader.TChannelCnt>0)
{
VertexA.TCoords.X = TVertex1[TFace1[f].C].TCoord.X;
VertexA.TCoords.Y = TVertex1[TFace1[f].C].TCoord.Y;
}
if (meshHeader.TChannelCnt>1)
{
VertexA.TCoords2.X = TVertex2[TFace2[f].C].TCoord.X;
VertexA.TCoords2.Y = TVertex2[TFace2[f].C].TCoord.Y;
}
// vertex B
VertexB.Pos.X = Vertex[Face[f].B].Coord.X;
VertexB.Pos.Y = Vertex[Face[f].B].Coord.Y;
VertexB.Pos.Z = Vertex[Face[f].B].Coord.Z;
VertexB.Normal.X = Vertex[Face[f].B].Normal.X;
VertexB.Normal.Y = Vertex[Face[f].B].Normal.Y;
VertexB.Normal.Z = Vertex[Face[f].B].Normal.Z;
if (meshHeader.TChannelCnt>0)
{
VertexB.TCoords.X = TVertex1[TFace1[f].B].TCoord.X;
VertexB.TCoords.Y = TVertex1[TFace1[f].B].TCoord.Y;
}
if (meshHeader.TChannelCnt>1)
{
VertexB.TCoords2.X = TVertex2[TFace2[f].B].TCoord.X;
VertexB.TCoords2.Y = TVertex2[TFace2[f].B].TCoord.Y;
}
// vertex C
VertexC.Pos.X = Vertex[Face[f].A].Coord.X;
VertexC.Pos.Y = Vertex[Face[f].A].Coord.Y;
VertexC.Pos.Z = Vertex[Face[f].A].Coord.Z;
VertexC.Normal.X = Vertex[Face[f].A].Normal.X;
VertexC.Normal.Y = Vertex[Face[f].A].Normal.Y;
VertexC.Normal.Z = Vertex[Face[f].A].Normal.Z;
if (meshHeader.TChannelCnt>0)
{
VertexC.TCoords.X = TVertex1[TFace1[f].A].TCoord.X;
VertexC.TCoords.Y = TVertex1[TFace1[f].A].TCoord.Y;
}
if (meshHeader.TChannelCnt>1)
{
VertexC.TCoords2.X = TVertex2[TFace2[f].A].TCoord.X;
VertexC.TCoords2.Y = TVertex2[TFace2[f].A].TCoord.Y;
}
// store 3d data in mesh buffer
buffer->getIndexBuffer()->addIndex(buffer->getVertexBuffer()->getVertexCount());
buffer->getVertexBuffer()->addVertex(&VertexA);
buffer->getIndexBuffer()->addIndex(buffer->getVertexBuffer()->getVertexCount());
buffer->getVertexBuffer()->addVertex(&VertexB);
buffer->getIndexBuffer()->addIndex(buffer->getVertexBuffer()->getVertexCount());
buffer->getVertexBuffer()->addVertex(&VertexC);
//*****************************************************************
// !!!!!! W A R N I N G !!!!!!!
//*****************************************************************
// For materials with alpha channel we duplicate all faces.
// This has be done for proper lighting calculation of the back faces.
// So you must remember this while you creating your models !!!!!
//*****************************************************************
// !!!!!! W A R N I N G !!!!!!!
//*****************************************************************
if (buffer->Material.MaterialType == video::EMT_TRANSPARENT_ALPHA_CHANNEL)
{
VertexA.Normal = core::vector3df(-VertexA.Normal.X, -VertexA.Normal.Y, -VertexA.Normal.Z);
VertexB.Normal = core::vector3df(-VertexB.Normal.X, -VertexB.Normal.Y, -VertexB.Normal.Z);
VertexC.Normal = core::vector3df(-VertexC.Normal.X, -VertexC.Normal.Y, -VertexC.Normal.Z);
buffer->getIndexBuffer()->addIndex(buffer->getVertexBuffer()->getVertexCount());
buffer->getVertexBuffer()->addVertex(&VertexC);
buffer->getIndexBuffer()->addIndex(buffer->getVertexBuffer()->getVertexCount());
buffer->getVertexBuffer()->addVertex(&VertexB);
buffer->getIndexBuffer()->addIndex(buffer->getVertexBuffer()->getVertexCount());
buffer->getVertexBuffer()->addVertex(&VertexA);
}
}
file->read(&id, sizeof(id));
#ifdef __BIG_ENDIAN__
id = os::Byteswap::byteswap(id);
#endif
}
// creating mesh
SMesh* mesh = new SMesh();
for (u32 num=0; num<MeshBufferEntry.size(); ++num)
{
CMeshBuffer<video::S3DVertex2TCoords>* buffer = MeshBufferEntry[num].MeshBuffer;
if (!buffer)
continue;
mesh->addMeshBuffer(buffer);
buffer->recalculateBoundingBox();
buffer->drop();
}
mesh->recalculateBoundingBox();
if (id != MY3D_FILE_END_ID)
os::Printer::log("Loading finished, but can not find MY3D_FILE_END_ID token.", ELL_WARNING);
SAnimatedMesh* am = new SAnimatedMesh();
am->addMesh(mesh);
mesh->drop();
am->recalculateBoundingBox();
return am;
}
