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colobot/src/graphics/engine/modelfile.cpp

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// * This file is part of the COLOBOT source code
// * Copyright (C) 2001-2008, Daniel ROUX & EPSITEC SA, www.epsitec.ch
// * Copyright (C) 2012, Polish Portal of Colobot (PPC)
// *
// * This program is free software: you can redistribute it and/or modify
// * it under the terms of the GNU 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 General Public License for more details.
// *
// * You should have received a copy of the GNU General Public License
// * along with this program. If not, see http://www.gnu.org/licenses/.
// modelfile.cpp (aka modfile.cpp)
#include "graphics/engine/modelfile.h"
#include "common/iman.h"
#include "common/ioutils.h"
#include "common/logger.h"
#include "common/stringutils.h"
#include "math/geometry.h"
#include <string.h>
#include <fstream>
//! How big the triangle vector is by default
const int TRIANGLE_PREALLOCATE_COUNT = 2000;
/**
\struct ModelHeader
\brief Header info for model file
*/
struct ModelHeader
{
//! Revision number
int revision;
//! Version number
int version;
//! Total number of vertices
int totalVertices;
//! Reserved area
int reserved[10];
ModelHeader()
{
memset(this, 0, sizeof(*this));
}
};
struct OldModelTriangle1
{
char used;
char selected;
Gfx::Vertex p1;
Gfx::Vertex p2;
Gfx::Vertex p3;
Gfx::Material material;
char texName[20];
float min;
float max;
OldModelTriangle1()
{
memset(this, 0, sizeof(*this));
}
};
struct OldModelTriangle2
{
char used;
char selected;
Gfx::Vertex p1;
Gfx::Vertex p2;
Gfx::Vertex p3;
Gfx::Material material;
char texName[20];
float min;
float max;
long state;
short reserved1;
short reserved2;
short reserved3;
short reserved4;
OldModelTriangle2()
{
memset(this, 0, sizeof(*this));
}
};
struct NewModelTriangle
{
char used;
char selected;
Gfx::VertexTex2 p1;
Gfx::VertexTex2 p2;
Gfx::VertexTex2 p3;
Gfx::Material material;
char texName[20];
float min;
float max;
long state;
short texNum2;
short reserved2;
short reserved3;
short reserved4;
NewModelTriangle()
{
memset(this, 0, sizeof(*this));
}
};
Gfx::Vertex ReadBinaryVertex(std::istream &stream)
{
Gfx::Vertex result;
result.coord.x = IOUtils::ReadBinaryFloat(stream);
result.coord.y = IOUtils::ReadBinaryFloat(stream);
result.coord.z = IOUtils::ReadBinaryFloat(stream);
result.normal.x = IOUtils::ReadBinaryFloat(stream);
result.normal.y = IOUtils::ReadBinaryFloat(stream);
result.normal.z = IOUtils::ReadBinaryFloat(stream);
result.texCoord.x = IOUtils::ReadBinaryFloat(stream);
result.texCoord.y = IOUtils::ReadBinaryFloat(stream);
return result;
}
void WriteBinaryVertex(Gfx::Vertex vertex, std::ostream &stream)
{
IOUtils::WriteBinaryFloat(vertex.coord.x, stream);
IOUtils::WriteBinaryFloat(vertex.coord.y, stream);
IOUtils::WriteBinaryFloat(vertex.coord.z, stream);
IOUtils::WriteBinaryFloat(vertex.normal.x, stream);
IOUtils::WriteBinaryFloat(vertex.normal.y, stream);
IOUtils::WriteBinaryFloat(vertex.normal.z, stream);
IOUtils::WriteBinaryFloat(vertex.texCoord.x, stream);
IOUtils::WriteBinaryFloat(vertex.texCoord.y, stream);
}
Gfx::VertexTex2 ReadBinaryVertexTex2(std::istream &stream)
{
Gfx::VertexTex2 result;
result.coord.x = IOUtils::ReadBinaryFloat(stream);
result.coord.y = IOUtils::ReadBinaryFloat(stream);
result.coord.z = IOUtils::ReadBinaryFloat(stream);
result.normal.x = IOUtils::ReadBinaryFloat(stream);
result.normal.y = IOUtils::ReadBinaryFloat(stream);
result.normal.z = IOUtils::ReadBinaryFloat(stream);
result.texCoord.x = IOUtils::ReadBinaryFloat(stream);
result.texCoord.y = IOUtils::ReadBinaryFloat(stream);
result.texCoord2.x = IOUtils::ReadBinaryFloat(stream);
result.texCoord2.y = IOUtils::ReadBinaryFloat(stream);
return result;
}
void WriteBinaryVertexTex2(Gfx::VertexTex2 vertex, std::ostream &stream)
{
IOUtils::WriteBinaryFloat(vertex.coord.x, stream);
IOUtils::WriteBinaryFloat(vertex.coord.y, stream);
IOUtils::WriteBinaryFloat(vertex.coord.z, stream);
IOUtils::WriteBinaryFloat(vertex.normal.x, stream);
IOUtils::WriteBinaryFloat(vertex.normal.y, stream);
IOUtils::WriteBinaryFloat(vertex.normal.z, stream);
IOUtils::WriteBinaryFloat(vertex.texCoord.x, stream);
IOUtils::WriteBinaryFloat(vertex.texCoord.y, stream);
IOUtils::WriteBinaryFloat(vertex.texCoord2.x, stream);
IOUtils::WriteBinaryFloat(vertex.texCoord2.y, stream);
}
Gfx::Material ReadBinaryMaterial(std::istream &stream)
{
Gfx::Material result;
result.diffuse.r = IOUtils::ReadBinaryFloat(stream);
result.diffuse.g = IOUtils::ReadBinaryFloat(stream);
result.diffuse.b = IOUtils::ReadBinaryFloat(stream);
result.diffuse.a = IOUtils::ReadBinaryFloat(stream);
result.ambient.r = IOUtils::ReadBinaryFloat(stream);
result.ambient.g = IOUtils::ReadBinaryFloat(stream);
result.ambient.b = IOUtils::ReadBinaryFloat(stream);
result.ambient.a = IOUtils::ReadBinaryFloat(stream);
result.specular.r = IOUtils::ReadBinaryFloat(stream);
result.specular.g = IOUtils::ReadBinaryFloat(stream);
result.specular.b = IOUtils::ReadBinaryFloat(stream);
result.specular.a = IOUtils::ReadBinaryFloat(stream);
/* emissive.r = */ IOUtils::ReadBinaryFloat(stream);
/* emissive.g = */ IOUtils::ReadBinaryFloat(stream);
/* emissive.b = */ IOUtils::ReadBinaryFloat(stream);
/* emissive.a = */ IOUtils::ReadBinaryFloat(stream);
/* power = */ IOUtils::ReadBinaryFloat(stream);
return result;
}
void WriteBinaryMaterial(Gfx::Material material, std::ostream &stream)
{
IOUtils::WriteBinaryFloat(material.diffuse.r, stream);
IOUtils::WriteBinaryFloat(material.diffuse.g, stream);
IOUtils::WriteBinaryFloat(material.diffuse.b, stream);
IOUtils::WriteBinaryFloat(material.diffuse.a, stream);
IOUtils::WriteBinaryFloat(material.ambient.r, stream);
IOUtils::WriteBinaryFloat(material.ambient.g, stream);
IOUtils::WriteBinaryFloat(material.ambient.b, stream);
IOUtils::WriteBinaryFloat(material.ambient.a, stream);
IOUtils::WriteBinaryFloat(material.specular.r, stream);
IOUtils::WriteBinaryFloat(material.specular.g, stream);
IOUtils::WriteBinaryFloat(material.specular.b, stream);
IOUtils::WriteBinaryFloat(material.specular.a, stream);
/* emissive.r */ IOUtils::WriteBinaryFloat(0.0f, stream);
/* emissive.g */ IOUtils::WriteBinaryFloat(0.0f, stream);
/* emissive.b */ IOUtils::WriteBinaryFloat(0.0f, stream);
/* emissive.a */ IOUtils::WriteBinaryFloat(0.0f, stream);
/* power */ IOUtils::WriteBinaryFloat(0.0f, stream);
}
Gfx::ModelTriangle::ModelTriangle()
{
min = 0.0f;
max = 0.0f;
state = 0L;
}
Gfx::CModelFile::CModelFile(CInstanceManager* iMan)
{
m_iMan = iMan;
m_engine = static_cast<CEngine*>(m_iMan->SearchInstance(CLASS_ENGINE));
m_triangles.reserve(TRIANGLE_PREALLOCATE_COUNT);
}
Gfx::CModelFile::~CModelFile()
{
}
std::string Gfx::CModelFile::GetError()
{
return m_error;
}
bool Gfx::CModelFile::ReadModel(const std::string &filename, bool edit, bool meta)
{
m_triangles.clear();
m_error = "";
std::ifstream stream;
stream.open(filename.c_str(), std::ios_base::in | std::ios_base::binary);
if (! stream.good())
{
m_error = std::string("Could not open file '") + filename + std::string("'");
return false;
}
return ReadModel(stream, edit, meta);
}
bool Gfx::CModelFile::ReadModel(std::istream &stream, bool edit, bool meta)
{
m_triangles.clear();
m_error = "";
// FIXME: for now, reading models only from files, not metafile
ModelHeader header;
header.revision = IOUtils::ReadBinary<4, int>(stream);
header.version = IOUtils::ReadBinary<4, int>(stream);
header.totalVertices = IOUtils::ReadBinary<4, int>(stream);
for (int i = 0; i < 10; ++i)
header.reserved[i] = IOUtils::ReadBinary<4, int>(stream);
if (! stream.good())
{
m_error = "Error reading model file header";
return false;
}
// Old model version #1
if ( (header.revision == 1) && (header.version == 0) )
{
for (int i = 0; i < header.totalVertices; ++i)
{
OldModelTriangle1 t;
t.used = IOUtils::ReadBinary<1, char>(stream);
t.selected = IOUtils::ReadBinary<1, char>(stream);
t.p1 = ReadBinaryVertex(stream);
t.p2 = ReadBinaryVertex(stream);
t.p3 = ReadBinaryVertex(stream);
t.material = ReadBinaryMaterial(stream);
stream.read(t.texName, 20);
t.min = IOUtils::ReadBinaryFloat(stream);
t.max = IOUtils::ReadBinaryFloat(stream);
if (! stream.good())
{
m_error = "Error reading model data";
return false;
}
Gfx::ModelTriangle triangle;
triangle.p1.FromVertex(t.p1);
triangle.p2.FromVertex(t.p2);
triangle.p3.FromVertex(t.p3);
triangle.material = t.material;
triangle.tex1Name = std::string(t.texName);
triangle.min = t.min;
triangle.max = t.max;
m_triangles.push_back(triangle);
}
}
else if ( header.revision == 1 && header.version == 1 )
{
for (int i = 0; i < header.totalVertices; ++i)
{
OldModelTriangle2 t;
t.used = IOUtils::ReadBinary<1, char>(stream);
t.selected = IOUtils::ReadBinary<1, char>(stream);
t.p1 = ReadBinaryVertex(stream);
t.p2 = ReadBinaryVertex(stream);
t.p3 = ReadBinaryVertex(stream);
t.material = ReadBinaryMaterial(stream);
stream.read(t.texName, 20);
t.min = IOUtils::ReadBinaryFloat(stream);
t.max = IOUtils::ReadBinaryFloat(stream);
t.state = IOUtils::ReadBinary<4, long>(stream);
t.reserved1 = IOUtils::ReadBinary<2, short>(stream);
t.reserved2 = IOUtils::ReadBinary<2, short>(stream);
t.reserved3 = IOUtils::ReadBinary<2, short>(stream);
t.reserved4 = IOUtils::ReadBinary<2, short>(stream);
if (! stream.good())
{
m_error = "Error reading model data";
return false;
}
Gfx::ModelTriangle triangle;
triangle.p1.FromVertex(t.p1);
triangle.p2.FromVertex(t.p2);
triangle.p3.FromVertex(t.p3);
triangle.material = t.material;
triangle.tex1Name = std::string(t.texName);
triangle.min = t.min;
triangle.max = t.max;
triangle.state = t.state;
m_triangles.push_back(triangle);
}
}
else
{
for (int i = 0; i < header.totalVertices; ++i)
{
NewModelTriangle t;
t.used = IOUtils::ReadBinary<1, char>(stream);
t.selected = IOUtils::ReadBinary<1, char>(stream);
/* padding */ IOUtils::ReadBinary<2, unsigned int>(stream);
t.p1 = ReadBinaryVertexTex2(stream);
t.p2 = ReadBinaryVertexTex2(stream);
t.p3 = ReadBinaryVertexTex2(stream);
t.material = ReadBinaryMaterial(stream);
stream.read(t.texName, 20);
t.min = IOUtils::ReadBinaryFloat(stream);
t.max = IOUtils::ReadBinaryFloat(stream);
t.state = IOUtils::ReadBinary<4, long>(stream);
t.texNum2 = IOUtils::ReadBinary<2, short>(stream);
t.reserved2 = IOUtils::ReadBinary<2, short>(stream);
t.reserved3 = IOUtils::ReadBinary<2, short>(stream);
t.reserved4 = IOUtils::ReadBinary<2, short>(stream);
if (! stream.good())
{
m_error = "Error reading model data";
return false;
}
Gfx::ModelTriangle triangle;
triangle.p1 = t.p1;
triangle.p2 = t.p2;
triangle.p3 = t.p3;
triangle.material = t.material;
triangle.tex1Name = std::string(t.texName);
char tex2Name[20] = { 0 };
triangle.min = t.min;
triangle.max = t.max;
triangle.state = t.state;
if (t.texNum2 != 0)
sprintf(tex2Name, "dirty%.2d.tga", t.texNum2); // hardcoded as in the original code
triangle.tex2Name = std::string(tex2Name);
m_triangles.push_back(triangle);
}
}
for (int i = 0; i < static_cast<int>( m_triangles.size() ); ++i)
{
m_triangles[i].tex1Name = StrUtils::Replace(m_triangles[i].tex1Name, "bmp", "tga");
GetLogger()->Info("ModelTriangle %d\n", i+1);
std::string s1 = m_triangles[i].p1.ToString();
GetLogger()->Info(" p1: %s\n", s1.c_str());
std::string s2 = m_triangles[i].p2.ToString();
GetLogger()->Info(" p2: %s\n", s2.c_str());
std::string s3 = m_triangles[i].p3.ToString();
GetLogger()->Info(" p3: %s\n", s3.c_str());
std::string d = m_triangles[i].material.diffuse.ToString();
std::string a = m_triangles[i].material.ambient.ToString();
std::string s = m_triangles[i].material.specular.ToString();
GetLogger()->Info(" mat: d: %s a: %s s: %s\n", d.c_str(), a.c_str(), s.c_str());
GetLogger()->Info(" tex1: %s tex2: %s\n", m_triangles[i].tex1Name.c_str(), m_triangles[i].tex2Name.c_str());
GetLogger()->Info(" min: %.2f max: %.2f\n", m_triangles[i].min, m_triangles[i].max);
GetLogger()->Info(" state: %ld\n", m_triangles[i].state);
}
/*
if (! edit)
{
float limit[2];
limit[0] = m_engine->RetLimitLOD(0); // frontier AB as config
limit[1] = m_engine->RetLimitLOD(1); // frontier BC as config
// Standard frontiers -> config.
for (int i = 0; i < m_triangles.size(); ++i)
{
if ( m_triangles[i].min == 0.0f &&
m_triangles[i].max == 100.0f ) // resolution A ?
{
m_triangles[i].max = limit[0];
}
else if ( m_triangles[i].min == 100.0f &&
m_triangles[i].max == 200.0f ) // resolution B ?
{
m_triangles[i].min = limit[0];
m_triangles[i].max = limit[1];
}
else if ( m_triangles[i].min == 200.0f &&
m_triangles[i].max == 1000000.0f ) // resolution C ?
{
m_triangles[i].min = limit[1];
}
}
}*/
return true;
}
bool Gfx::CModelFile::WriteModel(const std::string &filename)
{
m_error = "";
std::ofstream stream;
stream.open(filename.c_str(), std::ios_base::out | std::ios_base::binary);
if (! stream.good())
{
m_error = std::string("Could not open file '") + filename + std::string("'");
return false;
}
return WriteModel(stream);
}
bool Gfx::CModelFile::WriteModel(std::ostream &stream)
{
m_error = "";
if (m_triangles.size() == 0)
{
m_error = "Empty model";
return false;
}
ModelHeader header;
header.revision = 1;
header.version = 2;
header.totalVertices = m_triangles.size();
IOUtils::WriteBinary<4, int>(header.revision, stream);
IOUtils::WriteBinary<4, int>(header.version, stream);
IOUtils::WriteBinary<4, int>(header.totalVertices, stream);
for (int i = 0; i < 10; ++i)
IOUtils::WriteBinary<4, int>(header.reserved[i], stream);
for (int i = 0; i < static_cast<int>( m_triangles.size() ); ++i)
{
NewModelTriangle t;
t.used = true;
t.p1 = m_triangles[i].p1;
t.p2 = m_triangles[i].p2;
t.p3 = m_triangles[i].p3;
t.material = m_triangles[i].material;
strncpy(t.texName, m_triangles[i].tex1Name.c_str(), 20);
t.min = m_triangles[i].min;
t.max = m_triangles[i].max;
t.state = m_triangles[i].state;
int no = 0;
sscanf(m_triangles[i].tex2Name.c_str(), "dirty%d.tga", &no); // hardcoded as in the original code
t.texNum2 = no;
IOUtils::WriteBinary<1, char>(t.used, stream);
IOUtils::WriteBinary<1, char>(t.selected, stream);
WriteBinaryVertexTex2(t.p1, stream);
WriteBinaryVertexTex2(t.p2, stream);
WriteBinaryVertexTex2(t.p3, stream);
WriteBinaryMaterial(t.material, stream);
stream.write(t.texName, 20);
IOUtils::WriteBinaryFloat(t.min, stream);
IOUtils::WriteBinaryFloat(t.max, stream);
IOUtils::WriteBinary<4, long>(t.state, stream);
IOUtils::WriteBinary<2, short>(t.texNum2, stream);
IOUtils::WriteBinary<2, short>(t.reserved2, stream);
IOUtils::WriteBinary<2, short>(t.reserved3, stream);
IOUtils::WriteBinary<2, short>(t.reserved4, stream);
}
return true;
}
bool Gfx::CModelFile::ReadDXF(const std::string &filename, float min, float max)
{
m_triangles.clear();
m_error = "";
std::ifstream stream;
stream.open(filename.c_str(), std::ios_base::in);
if (! stream.good())
{
m_error = std::string("Couldn't open file '") + filename + std::string("'");
return false;
}
return ReadDXF(stream, min, max);
}
bool Gfx::CModelFile::ReadDXF(std::istream &stream, float min, float max)
{
m_triangles.clear();
m_error = "";
if (! stream.good())
{
m_error = "Invalid stream";
return false;
}
// Input state
bool waitNumVertex = false;
bool waitNumFace = false;
bool waitVertexX = false;
bool waitVertexY = false;
bool waitVertexZ = false;
bool waitFaceX = false;
bool waitFaceY = false;
bool waitFaceZ = false;
// Vertex array
std::vector<Math::Vector> vertices;
vertices.reserve(TRIANGLE_PREALLOCATE_COUNT);
// Number of vertices & faces of the primitive to be read
int vertexNum = 0, faceNum = 0;
// Vertex coords
Math::Vector coords;
// Indexes of face (triangle) points
int p1 = 0, p2 = 0, p3 = 0;
// Input line
std::string line;
while (! stream.eof() )
{
// Read line with command
std::getline(stream, line);
int command = StrUtils::FromString<int>(line);
// Read line with param
std::getline(stream, line);
bool ok = true;
if (command == 66)
{
waitNumVertex = true;
}
if ( command == 71 && waitNumVertex )
{
waitNumVertex = false;
vertexNum = StrUtils::FromString<int>(line, &ok);
waitNumFace = true;
}
if ( command == 72 && waitNumFace )
{
waitNumFace = false;
faceNum = StrUtils::FromString<int>(line, &ok);
waitVertexX = true;
}
if ( command == 10 && waitVertexX )
{
waitVertexX = false;
coords.x = StrUtils::FromString<float>(line, &ok);
waitVertexY = true;
}
if ( command == 20 && waitVertexY )
{
waitVertexY = false;
coords.y = StrUtils::FromString<float>(line, &ok);
waitVertexZ = true;
}
if ( command == 30 && waitVertexZ )
{
waitVertexZ = false;
coords.z = StrUtils::FromString<float>(line, &ok);
vertexNum --;
if ( vertexNum >= 0 )
{
Math::Vector p(coords.x, coords.z, coords.y); // permutation of Y and Z!
vertices.push_back(p);
waitVertexX = true;
}
else
{
waitFaceX = true;
}
}
if ( command == 71 && waitFaceX )
{
waitFaceX = false;
p1 = StrUtils::FromString<int>(line, &ok);
if ( p1 < 0 ) p1 = -p1;
waitFaceY = true;
}
if ( command == 72 && waitFaceY )
{
waitFaceY = false;
p2 = StrUtils::FromString<int>(line, &ok);
if ( p2 < 0 ) p2 = -p2;
waitFaceZ = true;
}
if ( command == 73 && waitFaceZ )
{
waitFaceZ = false;
p3 = StrUtils::FromString<int>(line, &ok);
if ( p3 < 0 ) p3 = -p3;
faceNum --;
if ( faceNum >= 0 )
{
assert( (p1-1 >= 0) && (p1-1 < static_cast<int>(vertices.size())) );
assert( (p2-1 >= 0) && (p2-1 < static_cast<int>(vertices.size())) );
assert( (p3-1 >= 0) && (p3-1 < static_cast<int>(vertices.size())) );
CreateTriangle(vertices[p3-1], vertices[p2-1], vertices[p1-1], min, max);
waitFaceX = true;
}
}
if (! ok)
{
m_error = "Error reading data";
return false;
}
}
return true;
}
bool Gfx::CModelFile::CreateEngineObject(int objRank, int addState)
{
for (int i = 0; i < static_cast<int>( m_triangles.size() ); i++)
{
int state = m_triangles[i].state;
/* TODO ???
if (texName1 == "plant.png")
state |= Gfx::ENG_RSTATE_ALPHA;
if (m_triangles[i].tex2Name.empty())
{
int texNum = 0;
if ( m_triangles[i].texNum2 == 1 )
{
texNum = m_engine->RetSecondTexture();
}
else
{
texNum = m_triangles[i].texNum2;
}
if ( texNum >= 1 && texNum <= 10 )
{
state |= D3DSTATEDUALb;
}
if ( texNum >= 11 && texNum <= 20 )
{
state |= D3DSTATEDUALw;
}
sprintf(texName2, "dirty%.2d.tga", texNum); // ???
}*/
std::vector<Gfx::VertexTex2> vs;
vs.push_back(m_triangles[i].p1);
vs.push_back(m_triangles[i].p2);
vs.push_back(m_triangles[i].p3);
m_engine->AddTriangles(objRank, vs,
m_triangles[i].material,
state + addState,
m_triangles[i].tex1Name,
m_triangles[i].tex2Name,
m_triangles[i].min,
m_triangles[i].max, false);
}
return true;
}
void Gfx::CModelFile::Mirror()
{
for (int i = 0; i < static_cast<int>( m_triangles.size() ); i++)
{
Gfx::VertexTex2 t = m_triangles[i].p1;
m_triangles[i].p1 = m_triangles[i].p2;
m_triangles[i].p2 = t;
m_triangles[i].p1.coord.z = -m_triangles[i].p1.coord.z;
m_triangles[i].p2.coord.z = -m_triangles[i].p2.coord.z;
m_triangles[i].p3.coord.z = -m_triangles[i].p3.coord.z;
m_triangles[i].p1.normal.z = -m_triangles[i].p1.normal.z;
m_triangles[i].p2.normal.z = -m_triangles[i].p2.normal.z;
m_triangles[i].p3.normal.z = -m_triangles[i].p3.normal.z;
}
}
std::vector<Gfx::ModelTriangle>& Gfx::CModelFile::GetTriangles()
{
return m_triangles;
}
int Gfx::CModelFile::GetTriangleCount()
{
return m_triangles.size();
}
float Gfx::CModelFile::GetHeight(Math::Vector pos)
{
float limit = 5.0f;
for (int i = 0; i < static_cast<int>( m_triangles.size() ); i++)
{
if ( fabs(pos.x - m_triangles[i].p1.coord.x) < limit &&
fabs(pos.z - m_triangles[i].p1.coord.z) < limit )
return m_triangles[i].p1.coord.y;
if ( fabs(pos.x - m_triangles[i].p2.coord.x) < limit &&
fabs(pos.z - m_triangles[i].p2.coord.z) < limit )
return m_triangles[i].p2.coord.y;
if ( fabs(pos.x - m_triangles[i].p3.coord.x) < limit &&
fabs(pos.z - m_triangles[i].p3.coord.z) < limit )
return m_triangles[i].p3.coord.y;
}
return 0.0f;
}
void Gfx::CModelFile::CreateTriangle(Math::Vector p1, Math::Vector p2, Math::Vector p3, float min, float max)
{
Gfx::ModelTriangle triangle;
Math::Vector n = Math::NormalToPlane(p3, p2, p1);
triangle.p1 = Gfx::VertexTex2(p1, n);
triangle.p2 = Gfx::VertexTex2(p2, n);
triangle.p3 = Gfx::VertexTex2(p3, n);
triangle.material.diffuse = Gfx::Color(1.0f, 1.0f, 1.0f, 0.0f);
triangle.material.ambient = Gfx::Color(0.5f, 0.5f, 0.5f, 0.0f);
triangle.min = min;
triangle.max = max;
m_triangles.push_back(triangle);
}
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