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stk-code_catmod/src/graphics/b3d_mesh_loader.cpp

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// Copyright (C) 2002-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#include "graphics/b3d_mesh_loader.hpp"
#include "graphics/central_settings.hpp"
#include "graphics/stk_tex_manager.hpp"
#include "graphics/material_manager.hpp"
#include "graphics/sp/sp_animation.hpp"
#include "graphics/sp/sp_mesh.hpp"
#include "graphics/sp/sp_mesh_buffer.hpp"
#include "utils/mini_glm.hpp"
#include <IVideoDriver.h>
#include <IFileSystem.h>
#include "../../lib/irrlicht/source/Irrlicht/os.h"
#include <algorithm>
int B3DMeshLoader::m_straight_frame = 0;
#undef _B3D_READER_DEBUG
//! Constructor
B3DMeshLoader::B3DMeshLoader(scene::ISceneManager* smgr)
: SceneManager(smgr), AnimatedMesh(0), B3DFile(0), NormalsInFile(false),
HasVertexColors(false), ShowWarning(true)
{
#ifdef _DEBUG
setDebugName("B3DMeshLoader");
#endif
}
//! returns true if the file maybe is able to be loaded by this class
//! based on the file extension (e.g. ".bsp")
bool B3DMeshLoader::isALoadableFileExtension(const io::path& filename) const
{
return core::hasFileExtension ( filename, "b3d" );
}
//! creates/loads an animated mesh from the file.
//! \return Pointer to the created mesh. Returns 0 if loading failed.
//! If you no longer need the mesh, you should call IAnimatedMesh::drop().
//! See IReferenceCounted::drop() for more information.
scene::IAnimatedMesh* B3DMeshLoader::createMesh(io::IReadFile* f)
{
if (!f)
return 0;
m_texture_string.clear();
B3DFile = f;
AnimatedMesh = new scene::CSkinnedMesh();
ShowWarning = true; // If true a warning is issued if too many textures are used
VerticesStart=0;
if ( load() )
{
AnimatedMesh->finalize();
}
else
{
AnimatedMesh->drop();
AnimatedMesh = 0;
}
#ifndef SERVER_ONLY
if (CVS->isGLSL())
{
SP::SPMesh* spm = toSPM(static_cast<scene::CSkinnedMesh*>
(AnimatedMesh->getMesh(m_straight_frame)));
m_texture_string.clear();
return spm;
}
#endif
return AnimatedMesh;
}
SP::SPMesh* B3DMeshLoader::toSPM(scene::CSkinnedMesh* mesh)
{
SP::SPMesh* spm = new SP::SPMesh();
core::array<SSkinMeshBuffer*>& all_buf = mesh->getMeshBuffers();
WeightInfluence wi;
for (unsigned b = 0; b < all_buf.size(); b++)
{
wi.push_back(core::array<core::array<JointInfluence> > ());
for (unsigned i = 0; i < all_buf[b]->getVertexCount(); i++)
wi[b].push_back(core::array<JointInfluence>());
}
const bool skinned_mesh = !mesh->RootJoints.empty() &&
mesh->getFrameCount() > 0;
if (skinned_mesh)
{
unsigned idx = 0;
for (unsigned i = 0; i < mesh->RootJoints.size(); i++)
computeWeightInfluence(mesh->RootJoints[i], idx, wi);
spm->m_total_joints = idx;
spm->m_joint_using = idx;
spm->m_bind_frame = m_straight_frame;
spm->m_all_armatures.resize(1);
const unsigned frame_count = mesh->getFrameCount();
spm->m_frame_count = frame_count;
spm->m_all_armatures[0].m_joint_used = idx;
spm->m_all_armatures[0].m_joint_names.resize(idx);
spm->m_all_armatures[0].m_joint_matrices.resize(idx);
spm->m_all_armatures[0].m_interpolated_matrices.resize(idx);
spm->m_all_armatures[0].m_world_matrices.resize(idx);
spm->m_all_armatures[0].m_parent_infos.resize(idx, -1);
spm->m_all_armatures[0].m_frame_pose_matrices.resize(frame_count);
for (auto& p : spm->m_all_armatures[0].m_frame_pose_matrices)
{
p.second.resize(idx);
}
}
for (unsigned b = 0; b < all_buf.size(); b++)
{
if (!all_buf[b])
{
continue;
}
SP::SPMeshBuffer* spmb = new SP::SPMeshBuffer();
const unsigned total = wi[b].size();
assert(all_buf[b]->getVertexCount() == total);
for (unsigned i = 0; i < total; i++)
{
video::S3DVertexSkinnedMesh vertex;
vertex.m_position = all_buf[b]->getVertex(i)->Pos;
vertex.m_normal =
MiniGLM::compressVector3(all_buf[b]->getVertex(i)->Normal);
vertex.m_color = all_buf[b]->getVertex(i)->Color;
vertex.m_all_uvs[0] =
MiniGLM::toFloat16(all_buf[b]->getVertex(i)->TCoords.X);
vertex.m_all_uvs[1] =
MiniGLM::toFloat16(all_buf[b]->getVertex(i)->TCoords.Y);
if (all_buf[b]->getVertexType() == video::EVT_2TCOORDS)
{
vertex.m_all_uvs[2] = MiniGLM::toFloat16
(all_buf[b]->Vertices_2TCoords[i].TCoords2.X);
vertex.m_all_uvs[3] = MiniGLM::toFloat16
(all_buf[b]->Vertices_2TCoords[i].TCoords2.Y);
}
// Please use spm for correct tangent export
vertex.m_tangent = MiniGLM::quickTangent(vertex.m_normal);
if (!skinned_mesh)
{
spmb->addSPMVertex(vertex);
continue;
}
core::array<JointInfluence> this_influence;
core::array<JointInfluence> reported_weight = wi[b][i];
reported_weight.sort(sortJointInfluenceFunc);
for (unsigned j = 0; j < 4; j++)
{
JointInfluence influence;
influence.joint_idx = -32768;
influence.weight = j == 0 ? 1.0f : 0.0f;
this_influence.push_back(influence);
}
float total_weight = 0.0f;
const unsigned max_weight =
reported_weight.size() > 4 ? 4 : reported_weight.size();
for (unsigned j = 0; j < max_weight; j++)
{
total_weight += reported_weight[j].weight;
this_influence[j].joint_idx = reported_weight[j].joint_idx;
this_influence[j].weight = reported_weight[j].weight;
}
if (total_weight != 0.0f)
{
for (unsigned j = 0; j < max_weight; j++)
{
this_influence[j].weight =
this_influence[j].weight / total_weight;
}
}
for (int j = 0; j < 4; j++)
{
vertex.m_joint_idx[j] = (short)this_influence[j].joint_idx;
vertex.m_weight[j] = MiniGLM::toFloat16(this_influence[j].weight);
}
spmb->addSPMVertex(vertex);
}
std::vector<uint16_t> indices;
std::copy(all_buf[b]->Indices.pointer(),
all_buf[b]->Indices.pointer() + all_buf[b]->Indices.size(),
std::back_inserter(indices));
spmb->setIndices(indices);
std::string tex_name_1, tex_name_2;
if (m_texture_string.find(all_buf[b]) != m_texture_string.end())
{
tex_name_1 = m_texture_string.at(all_buf[b]).first;
tex_name_2 = m_texture_string.at(all_buf[b]).second;
}
spmb->setSTKMaterial(material_manager->getMaterialSPM
(tex_name_1, tex_name_2));
spm->addSPMeshBuffer(spmb);
}
// Sort with same material
std::sort(spm->m_buffer.begin(), spm->m_buffer.end(),
[](const SP::SPMeshBuffer* a, const SP::SPMeshBuffer* b)->bool
{
return a->getSTKMaterial() < b->getSTKMaterial();
});
auto itr = spm->m_buffer.begin();
while (itr != spm->m_buffer.end())
{
auto itr_next = itr + 1;
if (itr_next != spm->m_buffer.end() &&
(*itr)->getSTKMaterial() == (*itr_next)->getSTKMaterial())
{
if ((*itr)->combineMeshBuffer(*itr_next,
false/*different_material*/))
{
(*itr)->recalculateBoundingBox();
delete *itr_next;
spm->m_buffer.erase(itr_next);
continue;
}
}
itr++;
}
if (skinned_mesh)
{
for (unsigned i = 0; i < mesh->getFrameCount(); i++)
{
mesh->animateMesh(float(i), 1.0f);
mesh->buildAllGlobalAnimatedMatrices();
unsigned idx = 0;
for (unsigned j = 0; j < mesh->RootJoints.size(); j++)
{
addSPAnimation(spm, mesh->RootJoints[j], idx, i);
}
}
}
spm->finalize();
mesh->drop();
return spm;
}
void B3DMeshLoader::addSPAnimation(SP::SPMesh* spm,
scene::CSkinnedMesh::SJoint* joint,
unsigned& index, unsigned frame)
{
if (!joint->Weights.empty())
{
if (spm->m_all_armatures[0].m_joint_names[index].empty())
{
spm->m_all_armatures[0].m_joint_names[index] = joint->Name.c_str();
}
auto& r = spm->m_all_armatures[0].m_frame_pose_matrices[frame];
r.first = frame;
core::vector3df position = core::vector3df
(joint->GlobalAnimatedMatrix[12],
joint->GlobalAnimatedMatrix[13],
joint->GlobalAnimatedMatrix[14]);
core::quaternion rotation(0.0f, 0.0f, 0.0f, 1.0f);
core::vector3df scale = joint->GlobalAnimatedMatrix.getScale();
if (scale.X != 0.0f && scale.Y != 0.0f && scale.Z != 0.0f)
{
core::matrix4 local_mat = joint->GlobalAnimatedMatrix;
local_mat[0] = local_mat[0] / scale.X / local_mat[15];
local_mat[1] = local_mat[1] / scale.X / local_mat[15];
local_mat[2] = local_mat[2] / scale.X / local_mat[15];
local_mat[4] = local_mat[4] / scale.Y / local_mat[15];
local_mat[5] = local_mat[5] / scale.Y / local_mat[15];
local_mat[6] = local_mat[6] / scale.Y / local_mat[15];
local_mat[8] = local_mat[8] / scale.Z / local_mat[15];
local_mat[9] = local_mat[9] / scale.Z / local_mat[15];
local_mat[10] = local_mat[10] / scale.Z / local_mat[15];
rotation = MiniGLM::getQuaternion(local_mat);
}
r.second[index] = { { position }, { rotation }, { scale } };
index++;
}
for (unsigned i = 0; i < joint->Children.size(); i++)
addSPAnimation(spm, joint->Children[i], index, frame);
}
void B3DMeshLoader::computeWeightInfluence(scene::CSkinnedMesh::SJoint *joint,
unsigned& index,
WeightInfluence& wi)
{
if (!joint->Weights.empty())
{
for (u32 i = 0; i < joint->Weights.size(); i++)
{
scene::CSkinnedMesh::SWeight& weight = joint->Weights[i];
JointInfluence tmp;
tmp.joint_idx = (int)index;
tmp.weight = weight.strength;
wi[weight.buffer_id][weight.vertex_id].push_back(tmp);
}
index++;
}
for (u32 j = 0; j < joint->Children.size(); j++)
computeWeightInfluence(joint->Children[j], index, wi);
}
bool B3DMeshLoader::load()
{
B3dStack.clear();
NormalsInFile=false;
HasVertexColors=false;
//------ Get header ------
SB3dChunkHeader header;
B3DFile->read(&header, sizeof(header));
#ifdef __BIG_ENDIAN__
header.size = os::Byteswap::byteswap(header.size);
#endif
if ( strncmp( header.name, "BB3D", 4 ) != 0 )
{
os::Printer::log("File is not a b3d file. Loading failed (No header found)", B3DFile->getFileName(), ELL_ERROR);
return false;
}
// Add main chunk...
B3dStack.push_back(SB3dChunk(header, B3DFile->getPos()-8));
// Get file version, but ignore it, as it's not important with b3d files...
s32 fileVersion;
B3DFile->read(&fileVersion, sizeof(fileVersion));
#ifdef __BIG_ENDIAN__
fileVersion = os::Byteswap::byteswap(fileVersion);
#endif
//------ Read main chunk ------
while ( (B3dStack.getLast().startposition + B3dStack.getLast().length) > B3DFile->getPos() )
{
B3DFile->read(&header, sizeof(header));
#ifdef __BIG_ENDIAN__
header.size = os::Byteswap::byteswap(header.size);
#endif
B3dStack.push_back(SB3dChunk(header, B3DFile->getPos()-8));
if ( strncmp( B3dStack.getLast().name, "TEXS", 4 ) == 0 )
{
if (!readChunkTEXS())
return false;
}
else if ( strncmp( B3dStack.getLast().name, "BRUS", 4 ) == 0 )
{
if (!readChunkBRUS())
return false;
}
else if ( strncmp( B3dStack.getLast().name, "NODE", 4 ) == 0 )
{
if (!readChunkNODE((scene::CSkinnedMesh::SJoint*)0) )
return false;
}
else
{
os::Printer::log("Unknown chunk found in mesh base - skipping");
B3DFile->seek(B3dStack.getLast().startposition + B3dStack.getLast().length);
B3dStack.erase(B3dStack.size()-1);
}
}
B3dStack.clear();
BaseVertices.clear();
AnimatedVertices_VertexID.clear();
AnimatedVertices_BufferID.clear();
Materials.clear();
Textures.clear();
return true;
}
bool B3DMeshLoader::readChunkNODE(scene::CSkinnedMesh::SJoint *inJoint)
{
scene::CSkinnedMesh::SJoint *joint = AnimatedMesh->addJoint(inJoint);
readString(joint->Name);
#ifdef _B3D_READER_DEBUG
core::stringc logStr;
for ( u32 i=1; i < B3dStack.size(); ++i )
logStr += "-";
logStr += "read ChunkNODE";
os::Printer::log(logStr.c_str(), joint->Name.c_str());
#endif
f32 position[3], scale[3], rotation[4];
readFloats(position, 3);
readFloats(scale, 3);
readFloats(rotation, 4);
joint->Animatedposition = core::vector3df(position[0],position[1],position[2]) ;
joint->Animatedscale = core::vector3df(scale[0],scale[1],scale[2]);
joint->Animatedrotation = core::quaternion(rotation[1], rotation[2], rotation[3], rotation[0]);
//Build LocalMatrix:
core::matrix4 positionMatrix;
positionMatrix.setTranslation( joint->Animatedposition );
core::matrix4 scaleMatrix;
scaleMatrix.setScale( joint->Animatedscale );
core::matrix4 rotationMatrix;
joint->Animatedrotation.getMatrix_transposed(rotationMatrix);
joint->LocalMatrix = positionMatrix * rotationMatrix * scaleMatrix;
if (inJoint)
joint->GlobalMatrix = inJoint->GlobalMatrix * joint->LocalMatrix;
else
joint->GlobalMatrix = joint->LocalMatrix;
while(B3dStack.getLast().startposition + B3dStack.getLast().length > B3DFile->getPos()) // this chunk repeats
{
SB3dChunkHeader header;
B3DFile->read(&header, sizeof(header));
#ifdef __BIG_ENDIAN__
header.size = os::Byteswap::byteswap(header.size);
#endif
B3dStack.push_back(SB3dChunk(header, B3DFile->getPos()-8));
if ( strncmp( B3dStack.getLast().name, "NODE", 4 ) == 0 )
{
if (!readChunkNODE(joint))
return false;
}
else if ( strncmp( B3dStack.getLast().name, "MESH", 4 ) == 0 )
{
VerticesStart=BaseVertices.size();
if (!readChunkMESH(joint))
return false;
}
else if ( strncmp( B3dStack.getLast().name, "BONE", 4 ) == 0 )
{
if (!readChunkBONE(joint))
return false;
}
else if ( strncmp( B3dStack.getLast().name, "KEYS", 4 ) == 0 )
{
if(!readChunkKEYS(joint))
return false;
}
else if ( strncmp( B3dStack.getLast().name, "ANIM", 4 ) == 0 )
{
if (!readChunkANIM())
return false;
}
else
{
os::Printer::log("Unknown chunk found in node chunk - skipping");
B3DFile->seek(B3dStack.getLast().startposition + B3dStack.getLast().length);
B3dStack.erase(B3dStack.size()-1);
}
}
B3dStack.erase(B3dStack.size()-1);
return true;
}
bool B3DMeshLoader::readChunkMESH(scene::CSkinnedMesh::SJoint *inJoint)
{
#ifdef _B3D_READER_DEBUG
core::stringc logStr;
for ( u32 i=1; i < B3dStack.size(); ++i )
logStr += "-";
logStr += "read ChunkMESH";
os::Printer::log(logStr.c_str());
#endif
s32 brushID;
B3DFile->read(&brushID, sizeof(brushID));
#ifdef __BIG_ENDIAN__
brushID = os::Byteswap::byteswap(brushID);
#endif
NormalsInFile=false;
HasVertexColors=false;
while((B3dStack.getLast().startposition + B3dStack.getLast().length) > B3DFile->getPos()) //this chunk repeats
{
SB3dChunkHeader header;
B3DFile->read(&header, sizeof(header));
#ifdef __BIG_ENDIAN__
header.size = os::Byteswap::byteswap(header.size);
#endif
B3dStack.push_back(SB3dChunk(header, B3DFile->getPos()-8));
if ( strncmp( B3dStack.getLast().name, "VRTS", 4 ) == 0 )
{
if (!readChunkVRTS(inJoint))
return false;
}
else if ( strncmp( B3dStack.getLast().name, "TRIS", 4 ) == 0 )
{
scene::SSkinMeshBuffer *meshBuffer = AnimatedMesh->addMeshBuffer();
if (brushID!=-1)
{
loadTextures(Materials[brushID], meshBuffer);
meshBuffer->Material=Materials[brushID].Material;
}
if(readChunkTRIS(meshBuffer,AnimatedMesh->getMeshBuffers().size()-1, VerticesStart)==false)
return false;
if (!NormalsInFile)
{
s32 i;
for ( i=0; i<(s32)meshBuffer->Indices.size(); i+=3)
{
core::plane3df p(meshBuffer->getVertex(meshBuffer->Indices[i+0])->Pos,
meshBuffer->getVertex(meshBuffer->Indices[i+1])->Pos,
meshBuffer->getVertex(meshBuffer->Indices[i+2])->Pos);
meshBuffer->getVertex(meshBuffer->Indices[i+0])->Normal += p.Normal;
meshBuffer->getVertex(meshBuffer->Indices[i+1])->Normal += p.Normal;
meshBuffer->getVertex(meshBuffer->Indices[i+2])->Normal += p.Normal;
}
for ( i = 0; i<(s32)meshBuffer->getVertexCount(); ++i )
{
meshBuffer->getVertex(i)->Normal.normalize();
BaseVertices[VerticesStart+i].Normal=meshBuffer->getVertex(i)->Normal;
}
}
}
else
{
os::Printer::log("Unknown chunk found in mesh - skipping");
B3DFile->seek(B3dStack.getLast().startposition + B3dStack.getLast().length);
B3dStack.erase(B3dStack.size()-1);
}
}
B3dStack.erase(B3dStack.size()-1);
return true;
}
/*
VRTS:
int flags ;1=normal values present, 2=rgba values present
int tex_coord_sets ;texture coords per vertex (eg: 1 for simple U/V) max=8
but we only support 3
int tex_coord_set_size ;components per set (eg: 2 for simple U/V) max=4
{
float x,y,z ;always present
float nx,ny,nz ;vertex normal: present if (flags&1)
float red,green,blue,alpha ;vertex color: present if (flags&2)
float tex_coords[tex_coord_sets][tex_coord_set_size] ;tex coords
}
*/
bool B3DMeshLoader::readChunkVRTS(scene::CSkinnedMesh::SJoint *inJoint)
{
#ifdef _B3D_READER_DEBUG
core::stringc logStr;
for ( u32 i=1; i < B3dStack.size(); ++i )
logStr += "-";
logStr += "ChunkVRTS";
os::Printer::log(logStr.c_str());
#endif
const s32 max_tex_coords = 3;
s32 flags, tex_coord_sets, tex_coord_set_size;
B3DFile->read(&flags, sizeof(flags));
B3DFile->read(&tex_coord_sets, sizeof(tex_coord_sets));
B3DFile->read(&tex_coord_set_size, sizeof(tex_coord_set_size));
#ifdef __BIG_ENDIAN__
flags = os::Byteswap::byteswap(flags);
tex_coord_sets = os::Byteswap::byteswap(tex_coord_sets);
tex_coord_set_size = os::Byteswap::byteswap(tex_coord_set_size);
#endif
if (tex_coord_sets >= max_tex_coords || tex_coord_set_size >= 4) // Something is wrong
{
os::Printer::log("tex_coord_sets or tex_coord_set_size too big", B3DFile->getFileName(), ELL_ERROR);
return false;
}
//------ Allocate Memory, for speed -----------//
s32 numberOfReads = 3;
if (flags & 1)
{
NormalsInFile = true;
numberOfReads += 3;
}
if (flags & 2)
{
numberOfReads += 4;
HasVertexColors=true;
}
numberOfReads += tex_coord_sets*tex_coord_set_size;
const s32 memoryNeeded = (B3dStack.getLast().length / sizeof(f32)) / numberOfReads;
BaseVertices.reallocate(memoryNeeded + BaseVertices.size() + 1);
AnimatedVertices_VertexID.reallocate(memoryNeeded + AnimatedVertices_VertexID.size() + 1);
//--------------------------------------------//
while( (B3dStack.getLast().startposition + B3dStack.getLast().length) > B3DFile->getPos()) // this chunk repeats
{
f32 position[3];
f32 normal[3]={0.f, 0.f, 0.f};
f32 color[4]={1.0f, 1.0f, 1.0f, 1.0f};
f32 tex_coords[max_tex_coords][4];
readFloats(position, 3);
if (flags & 1)
readFloats(normal, 3);
if (flags & 2)
readFloats(color, 4);
for (s32 i=0; i<tex_coord_sets; ++i)
readFloats(tex_coords[i], tex_coord_set_size);
f32 tu=0.0f, tv=0.0f;
if (tex_coord_sets >= 1 && tex_coord_set_size >= 2)
{
tu=tex_coords[0][0];
tv=tex_coords[0][1];
}
f32 tu2=0.0f, tv2=0.0f;
if (tex_coord_sets>1 && tex_coord_set_size>1)
{
tu2=tex_coords[1][0];
tv2=tex_coords[1][1];
}
// Create Vertex...
video::S3DVertex2TCoords Vertex(position[0], position[1], position[2],
normal[0], normal[1], normal[2],
video::SColorf(color[0], color[1], color[2], color[3]).toSColor(),
tu, tv, tu2, tv2);
// Transform the Vertex position by nested node...
inJoint->GlobalMatrix.transformVect(Vertex.Pos);
inJoint->GlobalMatrix.rotateVect(Vertex.Normal);
//Add it...
BaseVertices.push_back(Vertex);
AnimatedVertices_VertexID.push_back(-1);
AnimatedVertices_BufferID.push_back(-1);
}
B3dStack.erase(B3dStack.size()-1);
return true;
}
bool B3DMeshLoader::readChunkTRIS(scene::SSkinMeshBuffer *meshBuffer, u32 meshBufferID, s32 vertices_Start)
{
#ifdef _B3D_READER_DEBUG
core::stringc logStr;
for ( u32 i=1; i < B3dStack.size(); ++i )
logStr += "-";
logStr += "ChunkTRIS";
os::Printer::log(logStr.c_str());
#endif
bool showVertexWarning=false;
s32 triangle_brush_id; // Note: Irrlicht can't have different brushes for each triangle (using a workaround)
B3DFile->read(&triangle_brush_id, sizeof(triangle_brush_id));
#ifdef __BIG_ENDIAN__
triangle_brush_id = os::Byteswap::byteswap(triangle_brush_id);
#endif
SB3dMaterial *B3dMaterial;
if (triangle_brush_id != -1)
{
loadTextures(Materials[triangle_brush_id], meshBuffer);
B3dMaterial = &Materials[triangle_brush_id];
meshBuffer->Material = B3dMaterial->Material;
}
else
B3dMaterial = 0;
const s32 memoryNeeded = B3dStack.getLast().length / sizeof(s32);
meshBuffer->Indices.reallocate(memoryNeeded + meshBuffer->Indices.size() + 1);
while((B3dStack.getLast().startposition + B3dStack.getLast().length) > B3DFile->getPos()) // this chunk repeats
{
s32 vertex_id[3];
B3DFile->read(vertex_id, 3*sizeof(s32));
#ifdef __BIG_ENDIAN__
vertex_id[0] = os::Byteswap::byteswap(vertex_id[0]);
vertex_id[1] = os::Byteswap::byteswap(vertex_id[1]);
vertex_id[2] = os::Byteswap::byteswap(vertex_id[2]);
#endif
//Make Ids global:
vertex_id[0] += vertices_Start;
vertex_id[1] += vertices_Start;
vertex_id[2] += vertices_Start;
for(s32 i=0; i<3; ++i)
{
if ((u32)vertex_id[i] >= AnimatedVertices_VertexID.size())
{
os::Printer::log("Illegal vertex index found", B3DFile->getFileName(), ELL_ERROR);
return false;
}
if (AnimatedVertices_VertexID[ vertex_id[i] ] != -1)
{
if ( AnimatedVertices_BufferID[ vertex_id[i] ] != (s32)meshBufferID ) //If this vertex is linked in a different meshbuffer
{
AnimatedVertices_VertexID[ vertex_id[i] ] = -1;
AnimatedVertices_BufferID[ vertex_id[i] ] = -1;
showVertexWarning=true;
}
}
if (AnimatedVertices_VertexID[ vertex_id[i] ] == -1) //If this vertex is not in the meshbuffer
{
//Check for lightmapping:
if (BaseVertices[ vertex_id[i] ].TCoords2 != core::vector2df(0.f,0.f))
meshBuffer->convertTo2TCoords(); //Will only affect the meshbuffer the first time this is called
//Add the vertex to the meshbuffer:
if (meshBuffer->VertexType == video::EVT_STANDARD)
meshBuffer->Vertices_Standard.push_back( BaseVertices[ vertex_id[i] ] );
else
meshBuffer->Vertices_2TCoords.push_back(BaseVertices[ vertex_id[i] ] );
//create vertex id to meshbuffer index link:
AnimatedVertices_VertexID[ vertex_id[i] ] = meshBuffer->getVertexCount()-1;
AnimatedVertices_BufferID[ vertex_id[i] ] = meshBufferID;
if (B3dMaterial)
{
// Apply Material/Color/etc...
video::S3DVertex *Vertex=meshBuffer->getVertex(meshBuffer->getVertexCount()-1);
if (!HasVertexColors)
Vertex->Color=B3dMaterial->Material.DiffuseColor;
else if (Vertex->Color.getAlpha() == 255)
Vertex->Color.setAlpha( (s32)(B3dMaterial->alpha * 255.0f) );
// Use texture's scale
if (B3dMaterial->Textures[0])
{
Vertex->TCoords.X *= B3dMaterial->Textures[0]->Xscale;
Vertex->TCoords.Y *= B3dMaterial->Textures[0]->Yscale;
}
/*
if (B3dMaterial->Textures[1])
{
Vertex->TCoords2.X *=B3dMaterial->Textures[1]->Xscale;
Vertex->TCoords2.Y *=B3dMaterial->Textures[1]->Yscale;
}
*/
}
}
}
meshBuffer->Indices.push_back( AnimatedVertices_VertexID[ vertex_id[0] ] );
meshBuffer->Indices.push_back( AnimatedVertices_VertexID[ vertex_id[1] ] );
meshBuffer->Indices.push_back( AnimatedVertices_VertexID[ vertex_id[2] ] );
}
B3dStack.erase(B3dStack.size()-1);
if (showVertexWarning)
os::Printer::log("B3dMeshLoader: Warning, different meshbuffers linking to the same vertex, this will cause problems with animated meshes");
return true;
}
bool B3DMeshLoader::readChunkBONE(scene::CSkinnedMesh::SJoint *inJoint)
{
#ifdef _B3D_READER_DEBUG
core::stringc logStr;
for ( u32 i=1; i < B3dStack.size(); ++i )
logStr += "-";
logStr += "read ChunkBONE";
os::Printer::log(logStr.c_str());
#endif
if (B3dStack.getLast().length > 8)
{
while((B3dStack.getLast().startposition + B3dStack.getLast().length) > B3DFile->getPos()) // this chunk repeats
{
u32 globalVertexID;
f32 strength;
B3DFile->read(&globalVertexID, sizeof(globalVertexID));
B3DFile->read(&strength, sizeof(strength));
#ifdef __BIG_ENDIAN__
globalVertexID = os::Byteswap::byteswap(globalVertexID);
strength = os::Byteswap::byteswap(strength);
#endif
globalVertexID += VerticesStart;
if (AnimatedVertices_VertexID[globalVertexID]==-1)
{
os::Printer::log("B3dMeshLoader: Weight has bad vertex id (no link to meshbuffer index found)");
}
else if (strength >0)
{
scene::CSkinnedMesh::SWeight *weight=AnimatedMesh->addWeight(inJoint);
weight->strength=strength;
//Find the meshbuffer and Vertex index from the Global Vertex ID:
weight->vertex_id = AnimatedVertices_VertexID[globalVertexID];
weight->buffer_id = AnimatedVertices_BufferID[globalVertexID];
}
}
}
B3dStack.erase(B3dStack.size()-1);
return true;
}
bool B3DMeshLoader::readChunkKEYS(scene::CSkinnedMesh::SJoint *inJoint)
{
#ifdef _B3D_READER_DEBUG
// Only print first, that's just too much output otherwise
if ( !inJoint || (inJoint->PositionKeys.empty() && inJoint->ScaleKeys.empty() && inJoint->RotationKeys.empty()) )
{
core::stringc logStr;
for ( u32 i=1; i < B3dStack.size(); ++i )
logStr += "-";
logStr += "read ChunkKEYS";
os::Printer::log(logStr.c_str());
}
#endif
s32 flags;
B3DFile->read(&flags, sizeof(flags));
#ifdef __BIG_ENDIAN__
flags = os::Byteswap::byteswap(flags);
#endif
scene::CSkinnedMesh::SPositionKey *oldPosKey=0;
core::vector3df oldPos[2];
scene::CSkinnedMesh::SScaleKey *oldScaleKey=0;
core::vector3df oldScale[2];
scene::CSkinnedMesh::SRotationKey *oldRotKey=0;
core::quaternion oldRot[2];
bool isFirst[3]={true,true,true};
while((B3dStack.getLast().startposition + B3dStack.getLast().length) > B3DFile->getPos()) //this chunk repeats
{
s32 frame;
B3DFile->read(&frame, sizeof(frame));
#ifdef __BIG_ENDIAN__
frame = os::Byteswap::byteswap(frame);
#endif
// Add key frames, frames in Irrlicht are zero-based
f32 data[4];
if (flags & 1)
{
readFloats(data, 3);
if ((oldPosKey!=0) && (oldPos[0]==oldPos[1]))
{
const core::vector3df pos(data[0], data[1], data[2]);
if (oldPos[1]==pos)
oldPosKey->frame = (f32)frame-1;
else
{
oldPos[0]=oldPos[1];
oldPosKey=AnimatedMesh->addPositionKey(inJoint);
oldPosKey->frame = (f32)frame-1;
oldPos[1].set(oldPosKey->position.set(pos));
}
}
else if (oldPosKey==0 && isFirst[0])
{
oldPosKey=AnimatedMesh->addPositionKey(inJoint);
oldPosKey->frame = (f32)frame-1;
oldPos[0].set(oldPosKey->position.set(data[0], data[1], data[2]));
oldPosKey=0;
isFirst[0]=false;
}
else
{
if (oldPosKey!=0)
oldPos[0]=oldPos[1];
oldPosKey=AnimatedMesh->addPositionKey(inJoint);
oldPosKey->frame = (f32)frame-1;
oldPos[1].set(oldPosKey->position.set(data[0], data[1], data[2]));
}
}
if (flags & 2)
{
readFloats(data, 3);
if ((oldScaleKey!=0) && (oldScale[0]==oldScale[1]))
{
const core::vector3df scale(data[0], data[1], data[2]);
if (oldScale[1]==scale)
oldScaleKey->frame = (f32)frame-1;
else
{
oldScale[0]=oldScale[1];
oldScaleKey=AnimatedMesh->addScaleKey(inJoint);
oldScaleKey->frame = (f32)frame-1;
oldScale[1].set(oldScaleKey->scale.set(scale));
}
}
else if (oldScaleKey==0 && isFirst[1])
{
oldScaleKey=AnimatedMesh->addScaleKey(inJoint);
oldScaleKey->frame = (f32)frame-1;
oldScale[0].set(oldScaleKey->scale.set(data[0], data[1], data[2]));
oldScaleKey=0;
isFirst[1]=false;
}
else
{
if (oldScaleKey!=0)
oldScale[0]=oldScale[1];
oldScaleKey=AnimatedMesh->addScaleKey(inJoint);
oldScaleKey->frame = (f32)frame-1;
oldScale[1].set(oldScaleKey->scale.set(data[0], data[1], data[2]));
}
}
if (flags & 4)
{
readFloats(data, 4);
if ((oldRotKey!=0) && (oldRot[0]==oldRot[1]))
{
// meant to be in this order since b3d stores W first
const core::quaternion rot(data[1], data[2], data[3], data[0]);
if (oldRot[1]==rot)
oldRotKey->frame = (f32)frame-1;
else
{
oldRot[0]=oldRot[1];
oldRotKey=AnimatedMesh->addRotationKey(inJoint);
oldRotKey->frame = (f32)frame-1;
oldRot[1].set(oldRotKey->rotation.set(data[1], data[2], data[3], data[0]));
}
}
else if (oldRotKey==0 && isFirst[2])
{
oldRotKey=AnimatedMesh->addRotationKey(inJoint);
oldRotKey->frame = (f32)frame-1;
// meant to be in this order since b3d stores W first
oldRot[0].set(oldRotKey->rotation.set(data[1], data[2], data[3], data[0]));
oldRotKey=0;
isFirst[2]=false;
}
else
{
if (oldRotKey!=0)
oldRot[0]=oldRot[1];
oldRotKey=AnimatedMesh->addRotationKey(inJoint);
oldRotKey->frame = (f32)frame-1;
// meant to be in this order since b3d stores W first
oldRot[1].set(oldRotKey->rotation.set(data[1], data[2], data[3], data[0]));
}
}
}
B3dStack.erase(B3dStack.size()-1);
return true;
}
bool B3DMeshLoader::readChunkANIM()
{
#ifdef _B3D_READER_DEBUG
core::stringc logStr;
for ( u32 i=1; i < B3dStack.size(); ++i )
logStr += "-";
logStr += "read ChunkANIM";
os::Printer::log(logStr.c_str());
#endif
s32 animFlags; //not stored\used
s32 animFrames;//not stored\used
f32 animFPS; //not stored\used
B3DFile->read(&animFlags, sizeof(s32));
B3DFile->read(&animFrames, sizeof(s32));
readFloats(&animFPS, 1);
if (animFPS>0.f)
AnimatedMesh->setAnimationSpeed(animFPS);
os::Printer::log("FPS", io::path((double)animFPS), ELL_DEBUG);
#ifdef __BIG_ENDIAN__
animFlags = os::Byteswap::byteswap(animFlags);
animFrames = os::Byteswap::byteswap(animFrames);
#endif
B3dStack.erase(B3dStack.size()-1);
return true;
}
bool B3DMeshLoader::readChunkTEXS()
{
#ifdef _B3D_READER_DEBUG
core::stringc logStr;
for ( u32 i=1; i < B3dStack.size(); ++i )
logStr += "-";
logStr += "read ChunkTEXS";
os::Printer::log(logStr.c_str());
#endif
while((B3dStack.getLast().startposition + B3dStack.getLast().length) > B3DFile->getPos()) //this chunk repeats
{
Textures.push_back(SB3dTexture());
SB3dTexture& B3dTexture = Textures.getLast();
readString(B3dTexture.TextureName);
B3dTexture.TextureName.replace('\\','/');
#ifdef _B3D_READER_DEBUG
os::Printer::log("read Texture", B3dTexture.TextureName.c_str());
#endif
B3DFile->read(&B3dTexture.Flags, sizeof(s32));
B3DFile->read(&B3dTexture.Blend, sizeof(s32));
#ifdef __BIG_ENDIAN__
B3dTexture.Flags = os::Byteswap::byteswap(B3dTexture.Flags);
B3dTexture.Blend = os::Byteswap::byteswap(B3dTexture.Blend);
#endif
#ifdef _B3D_READER_DEBUG
os::Printer::log("Flags", core::stringc(B3dTexture.Flags).c_str());
os::Printer::log("Blend", core::stringc(B3dTexture.Blend).c_str());
#endif
readFloats(&B3dTexture.Xpos, 1);
readFloats(&B3dTexture.Ypos, 1);
readFloats(&B3dTexture.Xscale, 1);
readFloats(&B3dTexture.Yscale, 1);
readFloats(&B3dTexture.Angle, 1);
}
B3dStack.erase(B3dStack.size()-1);
return true;
}
bool B3DMeshLoader::readChunkBRUS()
{
#ifdef _B3D_READER_DEBUG
core::stringc logStr;
for ( u32 i=1; i < B3dStack.size(); ++i )
logStr += "-";
logStr += "read ChunkBRUS";
os::Printer::log(logStr.c_str());
#endif
u32 n_texs;
B3DFile->read(&n_texs, sizeof(u32));
#ifdef __BIG_ENDIAN__
n_texs = os::Byteswap::byteswap(n_texs);
#endif
// number of texture ids read for Irrlicht
const u32 num_textures = core::min_(n_texs, video::MATERIAL_MAX_TEXTURES);
// number of bytes to skip (for ignored texture ids)
const u32 n_texs_offset = (num_textures<n_texs)?(n_texs-num_textures):0;
while((B3dStack.getLast().startposition + B3dStack.getLast().length) > B3DFile->getPos()) //this chunk repeats
{
// This is what blitz basic calls a brush, like a Irrlicht Material
core::stringc name;
readString(name);
#ifdef _B3D_READER_DEBUG
os::Printer::log("read Material", name);
#endif
Materials.push_back(SB3dMaterial());
SB3dMaterial& B3dMaterial=Materials.getLast();
readFloats(&B3dMaterial.red, 1);
readFloats(&B3dMaterial.green, 1);
readFloats(&B3dMaterial.blue, 1);
readFloats(&B3dMaterial.alpha, 1);
readFloats(&B3dMaterial.shininess, 1);
B3DFile->read(&B3dMaterial.blend, sizeof(B3dMaterial.blend));
B3DFile->read(&B3dMaterial.fx, sizeof(B3dMaterial.fx));
#ifdef __BIG_ENDIAN__
B3dMaterial.blend = os::Byteswap::byteswap(B3dMaterial.blend);
B3dMaterial.fx = os::Byteswap::byteswap(B3dMaterial.fx);
#endif
#ifdef _B3D_READER_DEBUG
os::Printer::log("Blend", core::stringc(B3dMaterial.blend).c_str());
os::Printer::log("FX", core::stringc(B3dMaterial.fx).c_str());
#endif
u32 i;
for (i=0; i<num_textures; ++i)
{
s32 texture_id=-1;
B3DFile->read(&texture_id, sizeof(s32));
#ifdef __BIG_ENDIAN__
texture_id = os::Byteswap::byteswap(texture_id);
#endif
//--- Get pointers to the texture, based on the IDs ---
if ((u32)texture_id < Textures.size())
{
B3dMaterial.Textures[i]=&Textures[texture_id];
#ifdef _B3D_READER_DEBUG
os::Printer::log("Layer", core::stringc(i).c_str());
os::Printer::log("using texture", Textures[texture_id].TextureName.c_str());
#endif
}
else
B3dMaterial.Textures[i]=0;
}
// skip other texture ids
for (i=0; i<n_texs_offset; ++i)
{
s32 texture_id=-1;
B3DFile->read(&texture_id, sizeof(s32));
#ifdef __BIG_ENDIAN__
texture_id = os::Byteswap::byteswap(texture_id);
#endif
if (ShowWarning && (texture_id != -1) && (n_texs>video::MATERIAL_MAX_TEXTURES))
{
os::Printer::log("Too many textures used in one material", B3DFile->getFileName(), ELL_WARNING);
ShowWarning = false;
}
}
//Fixes problems when the lightmap is on the first texture:
if (B3dMaterial.Textures[0] != 0)
{
if (B3dMaterial.Textures[0]->Flags & 65536) // 65536 = secondary UV
{
SB3dTexture *TmpTexture;
TmpTexture = B3dMaterial.Textures[1];
B3dMaterial.Textures[1] = B3dMaterial.Textures[0];
B3dMaterial.Textures[0] = TmpTexture;
}
}
//If a preceeding texture slot is empty move the others down:
for (i=num_textures; i>0; --i)
{
for (u32 j=i-1; j<num_textures-1; ++j)
{
if (B3dMaterial.Textures[j+1] != 0 && B3dMaterial.Textures[j] == 0)
{
B3dMaterial.Textures[j] = B3dMaterial.Textures[j+1];
B3dMaterial.Textures[j+1] = 0;
}
}
}
//------ Convert blitz flags/blend to irrlicht -------
//Two textures:
if (B3dMaterial.Textures[1])
{
if (B3dMaterial.alpha==1.f)
{
if (B3dMaterial.Textures[1]->Blend == 5) //(Multiply 2)
B3dMaterial.Material.MaterialType = video::EMT_LIGHTMAP_M2;
else
B3dMaterial.Material.MaterialType = video::EMT_LIGHTMAP;
B3dMaterial.Material.Lighting = false;
}
else
{
B3dMaterial.Material.MaterialType = video::EMT_TRANSPARENT_VERTEX_ALPHA;
B3dMaterial.Material.ZWriteEnable = false;
}
}
else if (B3dMaterial.Textures[0]) //One texture:
{
// Flags & 0x1 is usual SOLID, 0x8 is mipmap (handled before)
if (B3dMaterial.Textures[0]->Flags & 0x2) //(Alpha mapped)
{
B3dMaterial.Material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
B3dMaterial.Material.ZWriteEnable = false;
}
else if (B3dMaterial.Textures[0]->Flags & 0x4) //(Masked)
B3dMaterial.Material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF; // TODO: create color key texture
else if (B3dMaterial.Textures[0]->Flags & 0x40)
B3dMaterial.Material.MaterialType = video::EMT_SPHERE_MAP;
else if (B3dMaterial.Textures[0]->Flags & 0x80)
B3dMaterial.Material.MaterialType = video::EMT_SPHERE_MAP; // TODO: Should be cube map
else if (B3dMaterial.alpha == 1.f)
B3dMaterial.Material.MaterialType = video::EMT_SOLID;
else
{
B3dMaterial.Material.MaterialType = video::EMT_TRANSPARENT_VERTEX_ALPHA;
B3dMaterial.Material.ZWriteEnable = false;
}
}
else //No texture:
{
if (B3dMaterial.alpha == 1.f)
B3dMaterial.Material.MaterialType = video::EMT_SOLID;
else
{
B3dMaterial.Material.MaterialType = video::EMT_TRANSPARENT_VERTEX_ALPHA;
B3dMaterial.Material.ZWriteEnable = false;
}
}
B3dMaterial.Material.DiffuseColor = video::SColorf(B3dMaterial.red, B3dMaterial.green, B3dMaterial.blue, B3dMaterial.alpha).toSColor();
B3dMaterial.Material.ColorMaterial=video::ECM_NONE;
//------ Material fx ------
if (B3dMaterial.fx & 1) //full-bright
{
B3dMaterial.Material.AmbientColor = video::SColor(255, 255, 255, 255);
B3dMaterial.Material.Lighting = false;
}
else
B3dMaterial.Material.AmbientColor = B3dMaterial.Material.DiffuseColor;
if (B3dMaterial.fx & 2) //use vertex colors instead of brush color
B3dMaterial.Material.ColorMaterial=video::ECM_DIFFUSE_AND_AMBIENT;
if (B3dMaterial.fx & 4) //flatshaded
B3dMaterial.Material.GouraudShading = false;
if (B3dMaterial.fx & 16) //disable backface culling
B3dMaterial.Material.BackfaceCulling = false;
if (B3dMaterial.fx & 32) //force vertex alpha-blending
{
B3dMaterial.Material.MaterialType = video::EMT_TRANSPARENT_VERTEX_ALPHA;
B3dMaterial.Material.ZWriteEnable = false;
}
B3dMaterial.Material.Shininess = B3dMaterial.shininess;
}
B3dStack.erase(B3dStack.size()-1);
return true;
}
void B3DMeshLoader::loadTextures(SB3dMaterial& material, scene::IMeshBuffer* mb)
{
const bool previous32BitTextureFlag = SceneManager->getVideoDriver()->getTextureCreationFlag(video::ETCF_ALWAYS_32_BIT);
SceneManager->getVideoDriver()->setTextureCreationFlag(video::ETCF_ALWAYS_32_BIT, true);
// read texture from disk
// note that mipmaps might be disabled by Flags & 0x8
const bool doMipMaps = SceneManager->getVideoDriver()->getTextureCreationFlag(video::ETCF_CREATE_MIP_MAPS);
for (u32 i=0; i<video::MATERIAL_MAX_TEXTURES; ++i)
{
SB3dTexture* B3dTexture = material.Textures[i];
if (B3dTexture && B3dTexture->TextureName.size() && !material.Material.getTexture(i))
{
if (!SceneManager->getParameters()->getAttributeAsBool(scene::B3D_LOADER_IGNORE_MIPMAP_FLAG))
SceneManager->getVideoDriver()->setTextureCreationFlag(video::ETCF_CREATE_MIP_MAPS, (B3dTexture->Flags & 0x8) ? true:false);
io::IFileSystem* fs = SceneManager->getFileSystem();
io::path texnameWithUserPath( SceneManager->getParameters()->getAttributeAsString(scene::B3D_TEXTURE_PATH) );
if ( texnameWithUserPath.size() )
{
texnameWithUserPath += '/';
texnameWithUserPath += B3dTexture->TextureName;
}
core::stringc full_path;
if (fs->existFile(texnameWithUserPath))
full_path = texnameWithUserPath;
else if (fs->existFile(fs->getFileDir(B3DFile->getFileName()) +"/"+ fs->getFileBasename(B3dTexture->TextureName)))
full_path = fs->getFileDir(B3DFile->getFileName()) +"/"+ fs->getFileBasename(B3dTexture->TextureName);
else
full_path = fs->getFileBasename(B3dTexture->TextureName);
#ifndef SERVER_ONLY
if (CVS->isGLSL())
{
auto& ret = m_texture_string[mb];
if (i == 0)
{
ret.first = full_path.c_str();
}
else
{
ret.second = full_path.c_str();
}
}
else
#endif
{
TexConfig mtc(i <= 1 ? true : false/*srgb*/, false/*premul_alpha*/,
true/*mesh_tex*/, true/*set_material*/);
video::ITexture* tex = STKTexManager::getInstance()->getTexture
(full_path.c_str(), &mtc);
material.Material.setTexture(i, tex);
}
if (material.Textures[i]->Flags & 0x10) // Clamp U
material.Material.TextureLayer[i].TextureWrapU=video::ETC_CLAMP;
if (material.Textures[i]->Flags & 0x20) // Clamp V
material.Material.TextureLayer[i].TextureWrapV=video::ETC_CLAMP;
}
}
SceneManager->getVideoDriver()->setTextureCreationFlag(video::ETCF_CREATE_MIP_MAPS, doMipMaps);
SceneManager->getVideoDriver()->setTextureCreationFlag(video::ETCF_ALWAYS_32_BIT, previous32BitTextureFlag);
}
void B3DMeshLoader::readString(core::stringc& newstring)
{
newstring="";
while (B3DFile->getPos() <= B3DFile->getSize())
{
c8 character;
B3DFile->read(&character, sizeof(character));
if (character==0)
return;
newstring.append(character);
}
}
void B3DMeshLoader::readFloats(f32* vec, u32 count)
{
B3DFile->read(vec, count*sizeof(f32));
#ifdef __BIG_ENDIAN__
for (u32 n=0; n<count; ++n)
vec[n] = os::Byteswap::byteswap(vec[n]);
#endif
}
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