/*
- * Copyright (c) 2015 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2021 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include "obj-loader.h"
// EXTERNAL INCLUDES
-#include <string>
-#include <sstream>
+#include <dali/integration-api/debug.h>
#include <string.h>
+#include <sstream>
+#include <string>
namespace Dali
{
-
namespace Toolkit
{
-
namespace Internal
{
-
+namespace
+{
+const int MAX_POINT_INDICES = 4;
+}
using namespace Dali;
ObjLoader::ObjLoader()
{
- mSceneLoaded = false;
- mMaterialLoaded = false;
+ mSceneLoaded = false;
+ mMaterialLoaded = false;
+ mHasTexturePoints = false;
+ mHasDiffuseMap = false;
+ mHasNormalMap = false;
+ mHasSpecularMap = false;
mSceneAABB.Init();
}
return mMaterialLoaded;
}
-//TODO: Use a function that can generate more than one normal/tangent per vertex (using angle)
-void ObjLoader::CalculateTangentArray(const Dali::Vector<Vector3>& vertex,
- const Dali::Vector<Vector2>& texcoord,
- Dali::Vector<TriIndex>& triangle,
- Dali::Vector<Vector3>& normal,
- Dali::Vector<Vector3>& tangent)
+void ObjLoader::CalculateHardFaceNormals(const Dali::Vector<Vector3>& vertices, Dali::Vector<TriIndex>& triangles, Dali::Vector<Vector3>& normals)
{
- normal.Clear();
- normal.Resize(vertex.Size());
+ int numFaceVertices = 3 * triangles.Size(); //Vertex per face, as each point has different normals for each face.
+ int normalIndex = 0; //Tracks progress through the array of normals.
- Vector3 *tan1 = new Vector3[vertex.Size() * 2];
+ normals.Clear();
+ normals.Resize(numFaceVertices);
- memset( tan1, 0, normal.Size() * sizeof(Vector3) * 2 );
- memset( &normal[0], 0, normal.Size() * sizeof(Vector3) * 2 );
-
- for ( unsigned long a = 0; a < triangle.Size(); a++ )
+ //For each triangle, calculate the normal by crossing two vectors on the triangle's plane.
+ for(unsigned long i = 0; i < triangles.Size(); i++)
{
- Vector3 Tangent, Bitangent, Normal;
+ //Triangle vertices.
+ const Vector3& v0 = vertices[triangles[i].pointIndex[0]];
+ const Vector3& v1 = vertices[triangles[i].pointIndex[1]];
+ const Vector3& v2 = vertices[triangles[i].pointIndex[2]];
- const Vector3& v0 = vertex[triangle[a].pntIndex[0]];
- const Vector3& v1 = vertex[triangle[a].pntIndex[1]];
- const Vector3& v2 = vertex[triangle[a].pntIndex[2]];
+ //Triangle edges.
+ Vector3 edge1 = v1 - v0;
+ Vector3 edge2 = v2 - v0;
- Vector3 Edge1 = v1 - v0;
- Vector3 Edge2 = v2 - v0;
+ //Using edges as vectors on the plane, cross to get the normal.
+ Vector3 normalVector = edge1.Cross(edge2);
+ normalVector.Normalize();
- Normal = Edge1.Cross(Edge2);
+ //Assign normals to points.
+ for(unsigned long j = 0; j < 3; j++, normalIndex++)
+ {
+ triangles[i].normalIndex[j] = normalIndex;
+ normals[normalIndex] = normalVector;
+ }
+ }
+}
- const Vector2& w0 = texcoord[triangle[a].texIndex[0]];
- const Vector2& w1 = texcoord[triangle[a].texIndex[1]];
- const Vector2& w2 = texcoord[triangle[a].texIndex[2]];
+void ObjLoader::CalculateSoftFaceNormals(const Dali::Vector<Vector3>& vertices, Dali::Vector<TriIndex>& triangles, Dali::Vector<Vector3>& normals)
+{
+ int normalIndex = 0; //Tracks progress through the array of normals.
- float DeltaU1 = w1.x - w0.x;
- float DeltaV1 = w1.y - w0.y;
- float DeltaU2 = w2.x - w0.x;
- float DeltaV2 = w2.y - w0.y;
+ normals.Clear();
+ normals.Resize(vertices.Size()); //One (averaged) normal per point.
- float f = 1.0f / (DeltaU1 * DeltaV2 - DeltaU2 * DeltaV1);
+ //For each triangle, calculate the normal by crossing two vectors on the triangle's plane
+ //We then add the triangle's normal to the cumulative normals at each point of it
+ for(unsigned long i = 0; i < triangles.Size(); i++)
+ {
+ //Triangle vertices.
+ const Vector3& v0 = vertices[triangles[i].pointIndex[0]];
+ const Vector3& v1 = vertices[triangles[i].pointIndex[1]];
+ const Vector3& v2 = vertices[triangles[i].pointIndex[2]];
- Tangent.x = f * ( DeltaV2 * Edge1.x - DeltaV1 * Edge2.x );
- Tangent.y = f * ( DeltaV2 * Edge1.y - DeltaV1 * Edge2.y );
- Tangent.z = f * ( DeltaV2 * Edge1.z - DeltaV1 * Edge2.z );
+ //Triangle edges.
+ Vector3 edge1 = v1 - v0;
+ Vector3 edge2 = v2 - v0;
- tan1[triangle[a].pntIndex[0]] += Tangent;
- tan1[triangle[a].pntIndex[1]] += Tangent;
- tan1[triangle[a].pntIndex[2]] += Tangent;
+ //Using edges as vectors on the plane, cross to get the normal.
+ Vector3 normalVector = edge1.Cross(edge2);
- normal[triangle[a].pntIndex[0]] += Normal;
- normal[triangle[a].pntIndex[1]] += Normal;
- normal[triangle[a].pntIndex[2]] += Normal;
+ //Add this triangle's normal to the cumulative normal of each constituent point and set the index of the normal accordingly.
+ for(unsigned long j = 0; j < 3; j++, normalIndex++)
+ {
+ triangles[i].normalIndex[j] = triangles[i].pointIndex[j]; //Normal index matches up to vertex index, as one normal per vertex.
+ normals[triangles[i].normalIndex[j]] += normalVector;
+ }
}
- for ( unsigned long a = 0; a < triangle.Size(); a++ )
+ //Normalise the normals.
+ for(unsigned long i = 0; i < normals.Size(); i++)
{
- for ( unsigned long j = 0; j < 3; j++ )
- {
- triangle[a].nrmIndex[j] = triangle[a].pntIndex[j];
- }
+ normals[i].Normalize();
}
+}
+
+//TODO: Use a function that can generate more than one normal/tangent per vertex (using angle)
+void ObjLoader::CalculateTangentFrame()
+{
+ //Reset tangent and bitangent vectors to hold new values.
+ mTangents.Clear();
+ mBiTangents.Clear();
+ mTangents.Resize(mPoints.Size());
+ mBiTangents.Resize(mPoints.Size());
- for ( unsigned long a = 0; a < normal.Size(); a++ )
+ //For each triangle, calculate the tangent vector and then add it to the total tangent vector of each point.
+ for(unsigned long a = 0; a < mTriangles.Size(); a++)
{
- normal[a].Normalize();
+ Vector3 tangentVector;
- const Vector3& n = normal[a];
- const Vector3& t = tan1[a];
+ const Vector3& v0 = mPoints[mTriangles[a].pointIndex[0]];
+ const Vector3& v1 = mPoints[mTriangles[a].pointIndex[1]];
+ const Vector3& v2 = mPoints[mTriangles[a].pointIndex[2]];
- // Gram-Schmidt orthogonalize
- Vector3 calc = t - n * n.Dot(t);
- calc.Normalize();
- tangent[a] = Vector3( calc.x,calc.y,calc.z );
+ Vector3 edge1 = v1 - v0;
+ Vector3 edge2 = v2 - v0;
+
+ const Vector2& w0 = mTextures[mTriangles[a].textureIndex[0]];
+ const Vector2& w1 = mTextures[mTriangles[a].textureIndex[1]];
+ const Vector2& w2 = mTextures[mTriangles[a].textureIndex[2]];
+
+ float deltaU1 = w1.x - w0.x;
+ float deltaV1 = w1.y - w0.y;
+ float deltaU2 = w2.x - w0.x;
+ float deltaV2 = w2.y - w0.y;
+
+ float f = 1.0f / (deltaU1 * deltaV2 - deltaU2 * deltaV1);
+
+ tangentVector.x = f * (deltaV2 * edge1.x - deltaV1 * edge2.x);
+ tangentVector.y = f * (deltaV2 * edge1.y - deltaV1 * edge2.y);
+ tangentVector.z = f * (deltaV2 * edge1.z - deltaV1 * edge2.z);
+
+ mTangents[mTriangles[a].pointIndex[0]] += tangentVector;
+ mTangents[mTriangles[a].pointIndex[1]] += tangentVector;
+ mTangents[mTriangles[a].pointIndex[2]] += tangentVector;
}
- delete[] tan1;
-}
+ //Orthogonalize tangents and set binormals.
+ for(unsigned long a = 0; a < mTangents.Size(); a++)
+ {
+ const Vector3& n = mNormals[a];
+ const Vector3& t = mTangents[a];
+
+ // Gram-Schmidt orthogonalize
+ mTangents[a] = t - n * n.Dot(t);
+ mTangents[a].Normalize();
+ mBiTangents[a] = mNormals[a].Cross(mTangents[a]);
+ }
+}
-void ObjLoader::CenterAndScale( bool center, Dali::Vector<Vector3>& points )
+void ObjLoader::CenterAndScale(bool center, Dali::Vector<Vector3>& points)
{
BoundingVolume newAABB;
Vector3 sceneSize = GetSize();
float biggestDimension = sceneSize.x;
- if( sceneSize.y > biggestDimension )
+ if(sceneSize.y > biggestDimension)
{
biggestDimension = sceneSize.y;
}
- if( sceneSize.z > biggestDimension )
+ if(sceneSize.z > biggestDimension)
{
biggestDimension = sceneSize.z;
}
-
newAABB.Init();
- for( unsigned int ui = 0; ui < points.Size(); ++ui )
+ for(unsigned int ui = 0; ui < points.Size(); ++ui)
{
points[ui] = points[ui] - GetCenter();
points[ui] = points[ui] / biggestDimension;
mSceneAABB = newAABB;
}
-void ObjLoader::CreateGeometryArray(Dali::Vector<Vertex> & vertices,
- Dali::Vector<Vector2> & textures,
- Dali::Vector<VertexExt> & verticesExt,
- Dali::Vector<unsigned short> & indices)
+void ObjLoader::CreateGeometryArray(Dali::Vector<Vertex>& vertices,
+ Dali::Vector<Vector2>& textures,
+ Dali::Vector<VertexExt>& verticesExt,
+ Dali::Vector<unsigned short>& indices,
+ bool useSoftNormals)
{
- //If we don't have tangents, calculate them
- //we need to recalculate the normals too, because we need just one normal,tangent, bitangent per vertex
- //In the case of a textureless object, we don't need tangents and so we skip this step
- //TODO: Use a better function to calculate tangents
- if( mTangents.Size() == 0 && mHasTexture && mHasNormalMap )
+ //We must calculate the tangents and bitangents if they weren't supplied, or if they don't match up.
+ bool mustCalculateTangents = mTangents.Size() == 0 || mBiTangents.Size() == 0 ||
+ mTangents.Size() != mBiTangents.Size() || mTangents.Size() != mNormals.Size() ||
+ mBiTangents.Size() != mNormals.Size();
+
+ //However, we don't need to do this if the object doesn't use textures to begin with.
+ mustCalculateTangents &= mHasTexturePoints;
+
+ //We also have to recalculate the normals if we need to calculate tangents,
+ // as we need just one normal, tangent and bitangent per vertex, rather than the supplied per-face vertices.
+ //Alternatively, we need to calculate the normals if there weren't any to begin with.
+ if(mNormals.Size() == 0 || mustCalculateTangents)
{
- mTangents.Resize( mNormals.Size() );
- mBiTangents.Resize( mNormals.Size() );
- CalculateTangentArray( mPoints, mTextures, mTriangles, mNormals, mTangents );
- for ( unsigned int ui = 0 ; ui < mNormals.Size() ; ++ui )
+ if(useSoftNormals || mustCalculateTangents)
{
- mBiTangents[ui] = mNormals[ui].Cross(mTangents[ui]);
+ CalculateSoftFaceNormals(mPoints, mTriangles, mNormals);
}
+ else
+ {
+ CalculateHardFaceNormals(mPoints, mTriangles, mNormals);
+ }
+ }
+
+ //TODO: Use a better function to calculate tangents
+ if(mHasTexturePoints && mustCalculateTangents)
+ {
+ CalculateTangentFrame();
}
bool mapsCorrespond; //True if the sizes of the arrays necessary for the object agree.
- if ( mHasTexture )
+ if(mHasTexturePoints)
{
- mapsCorrespond = ( mPoints.Size() == mTextures.Size() ) && ( mTextures.Size() == mNormals.Size() );
+ mapsCorrespond = (mPoints.Size() == mTextures.Size()) && (mTextures.Size() == mNormals.Size());
}
else
{
- mapsCorrespond = ( mPoints.Size() == mNormals.Size() );
+ mapsCorrespond = (mPoints.Size() == mNormals.Size());
}
//Check the number of points textures and normals
- if ( mapsCorrespond )
+ if(mapsCorrespond)
{
- int numPoints = mPoints.Size();
+ int numPoints = mPoints.Size();
int numIndices = 3 * mTriangles.Size();
- vertices.Resize( numPoints );
- textures.Resize( numPoints );
- verticesExt.Resize( numPoints );
- indices.Resize( numIndices );
+ vertices.Resize(numPoints);
+ textures.Resize(numPoints);
+ verticesExt.Resize(numPoints);
+ indices.Resize(numIndices);
//We create the vertices array. For now we just copy points info
- for (unsigned int ui = 0 ; ui < mPoints.Size() ; ++ui )
+ for(unsigned int ui = 0; ui < mPoints.Size(); ++ui)
{
Vertex vertex;
vertex.position = mPoints[ui];
- vertices[ui] = vertex;
+ vertices[ui] = vertex;
- if ( mHasTexture )
+ if(mHasTexturePoints)
{
- textures[ui] = Vector2();
+ textures[ui] = Vector2();
verticesExt[ui] = VertexExt();
}
}
int indiceIndex = 0;
//We copy the indices
- for ( unsigned int ui = 0 ; ui < mTriangles.Size() ; ++ui )
+ for(unsigned int ui = 0; ui < mTriangles.Size(); ++ui)
{
- for ( int j = 0 ; j < 3 ; ++j )
+ for(int j = 0; j < 3; ++j)
{
- indices[indiceIndex] = mTriangles[ui].pntIndex[j];
+ indices[indiceIndex] = mTriangles[ui].pointIndex[j];
indiceIndex++;
- vertices[mTriangles[ui].pntIndex[j]].normal = mNormals[mTriangles[ui].nrmIndex[j]];
+ vertices[mTriangles[ui].pointIndex[j]].normal = mNormals[mTriangles[ui].normalIndex[j]];
- if ( mHasTexture )
+ if(mHasTexturePoints)
{
- textures[mTriangles[ui].pntIndex[j]] = mTextures[mTriangles[ui].texIndex[j]];
- }
-
- if ( mHasNormalMap && mHasTexture )
- {
- verticesExt[mTriangles[ui].pntIndex[j]].tangent = mTangents[mTriangles[ui].nrmIndex[j]];
- verticesExt[mTriangles[ui].pntIndex[j]].bitangent = mBiTangents[mTriangles[ui].nrmIndex[j]];
+ textures[mTriangles[ui].pointIndex[j]] = mTextures[mTriangles[ui].textureIndex[j]];
+ verticesExt[mTriangles[ui].pointIndex[j]].tangent = mTangents[mTriangles[ui].normalIndex[j]];
+ verticesExt[mTriangles[ui].pointIndex[j]].bitangent = mBiTangents[mTriangles[ui].normalIndex[j]];
}
}
}
else
{
int numVertices = 3 * mTriangles.Size();
- vertices.Resize( numVertices );
- textures.Resize( numVertices );
- verticesExt.Resize( numVertices );
+ vertices.Resize(numVertices);
+ textures.Resize(numVertices);
+ verticesExt.Resize(numVertices);
int index = 0;
//We have to normalize the arrays so we can draw we just one index array
- for ( unsigned int ui = 0 ; ui < mTriangles.Size() ; ++ui )
+ for(unsigned int ui = 0; ui < mTriangles.Size(); ++ui)
{
- for ( int j = 0 ; j < 3 ; ++j )
+ for(int j = 0; j < 3; ++j)
{
Vertex vertex;
- vertex.position = mPoints[mTriangles[ui].pntIndex[j]];
- vertex.normal = mNormals[mTriangles[ui].nrmIndex[j]];
+ vertex.position = mPoints[mTriangles[ui].pointIndex[j]];
+ vertex.normal = mNormals[mTriangles[ui].normalIndex[j]];
vertices[index] = vertex;
- if ( mHasTexture )
- {
- textures[index] = mTextures[mTriangles[ui].texIndex[j]];
- }
-
- if ( mHasNormalMap && mHasTexture )
+ if(mHasTexturePoints)
{
+ textures[index] = mTextures[mTriangles[ui].textureIndex[j]];
VertexExt vertexExt;
- vertexExt.tangent = mTangents[mTriangles[ui].nrmIndex[j]];
- vertexExt.bitangent = mBiTangents[mTriangles[ui].nrmIndex[j]];
- verticesExt[index] = vertexExt;
+ vertexExt.tangent = mTangents[mTriangles[ui].normalIndex[j]];
+ vertexExt.bitangent = mBiTangents[mTriangles[ui].normalIndex[j]];
+ verticesExt[index] = vertexExt;
}
index++;
}
}
-bool ObjLoader::Load( char* objBuffer, std::streampos fileSize, std::string& materialFile )
+bool ObjLoader::LoadObject(char* objBuffer, std::streampos fileSize)
{
- Vector3 point;
- Vector2 texture;
- std::string vet[4], name;
- int ptIdx[4];
- int nrmIdx[4];
- int texIdx[4];
- TriIndex triangle,triangle2;
- int pntAcum = 0, texAcum = 0, nrmAcum = 0;
- bool iniObj = false;
- bool hasTexture = false;
- bool hasNormalMap = false;
- int face = 0;
+ Vector3 point;
+ Vector2 texture;
+ std::string vet[MAX_POINT_INDICES], name;
+ int ptIdx[MAX_POINT_INDICES];
+ int nrmIdx[MAX_POINT_INDICES];
+ int texIdx[MAX_POINT_INDICES];
+ TriIndex triangle, triangle2;
+ int pntAcum = 0, texAcum = 0, nrmAcum = 0;
+ bool iniObj = false;
+ bool hasTexture = false;
+ int face = 0;
//Init AABB for the file
mSceneAABB.Init();
std::string strMatActual;
- std::string input = objBuffer;
+ std::string input(objBuffer, fileSize);
std::istringstream ss(input);
- ss.imbue( std::locale( "C" ) );
-
+ ss.imbue(std::locale("C"));
std::string line;
- std::getline( ss, line );
+ std::getline(ss, line);
- while ( std::getline( ss, line ) )
+ while(std::getline(ss, line))
{
- std::istringstream isline( line, std::istringstream::in );
- std::string tag;
+ std::istringstream isline(line, std::istringstream::in);
+ std::string tag;
isline >> tag;
- if ( tag == "v" )
+ if(tag == "v")
{
//Two different objects in the same file
isline >> point.x;
isline >> point.y;
isline >> point.z;
- mPoints.PushBack( point );
+ mPoints.PushBack(point);
- mSceneAABB.ConsiderNewPointInVolume( point );
+ mSceneAABB.ConsiderNewPointInVolume(point);
}
- else if ( tag == "vn" )
+ else if(tag == "vn")
{
isline >> point.x;
isline >> point.y;
isline >> point.z;
- mNormals.PushBack( point );
+ mNormals.PushBack(point);
}
- else if ( tag == "#_#tangent" )
+ else if(tag == "#_#tangent")
{
isline >> point.x;
isline >> point.y;
isline >> point.z;
- mTangents.PushBack( point );
- hasNormalMap = true;
+ mTangents.PushBack(point);
}
- else if ( tag == "#_#binormal" )
+ else if(tag == "#_#binormal")
{
isline >> point.x;
isline >> point.y;
isline >> point.z;
- mBiTangents.PushBack( point );
- hasNormalMap = true;
+ mBiTangents.PushBack(point);
}
- else if ( tag == "vt" )
+ else if(tag == "vt")
{
isline >> texture.x;
isline >> texture.y;
- texture.y = 1.0-texture.y;
- mTextures.PushBack( texture );
+ texture.y = 1.0 - texture.y;
+ mTextures.PushBack(texture);
}
- else if ( tag == "#_#vt1" )
+ else if(tag == "#_#vt1")
{
isline >> texture.x;
isline >> texture.y;
- texture.y = 1.0-texture.y;
- mTextures2.PushBack( texture );
+ texture.y = 1.0 - texture.y;
+ mTextures2.PushBack(texture);
}
- else if ( tag == "s" )
+ else if(tag == "s")
{
}
- else if ( tag == "f" )
+ else if(tag == "f")
{
- if ( !iniObj )
+ if(!iniObj)
{
//name assign
}
int numIndices = 0;
- while( isline >> vet[numIndices] )
+ while((numIndices < MAX_POINT_INDICES) && (isline >> vet[numIndices]))
{
numIndices++;
}
+ //Hold slashes that separate attributes of the same point.
char separator;
char separator2;
- if ( strstr( vet[0].c_str(),"//" ) ) //No texture coordinates.
+ const char* subString; //A pointer to the position in the string as we move through it.
+
+ subString = strstr(vet[0].c_str(), "/"); //Search for the first '/'
+
+ if(subString)
{
- for( int i = 0 ; i < numIndices; i++)
+ if(subString[1] == '/') // Of the form A//C, so has points and normals but no texture coordinates.
{
- std::istringstream isindex( vet[i] );
- isindex >> ptIdx[i] >> separator >> separator2 >> nrmIdx[i];
- texIdx[i] = 0;
+ for(int i = 0; i < numIndices; i++)
+ {
+ std::istringstream isindex(vet[i]);
+ isindex >> ptIdx[i] >> separator >> separator2 >> nrmIdx[i];
+ texIdx[i] = 0;
+ }
}
- }
- else if ( strstr( vet[0].c_str(),"/" ) ) //Has texture coordinates, and possibly also normals.
- {
- for( int i = 0 ; i < numIndices; i++ )
+ else if(strstr(subString, "/")) // Of the form A/B/C, so has points, textures and normals.
+ {
+ for(int i = 0; i < numIndices; i++)
+ {
+ std::istringstream isindex(vet[i]);
+ isindex >> ptIdx[i] >> separator >> texIdx[i] >> separator2 >> nrmIdx[i];
+ }
+
+ hasTexture = true;
+ }
+ else // Of the form A/B, so has points and textures but no normals.
{
- std::istringstream isindex( vet[i] );
- isindex >> ptIdx[i] >> separator >> texIdx[i] >> separator2 >> nrmIdx[i];
+ for(int i = 0; i < numIndices; i++)
+ {
+ std::istringstream isindex(vet[i]);
+ isindex >> ptIdx[i] >> separator >> texIdx[i];
+ nrmIdx[i] = 0;
+ }
+
hasTexture = true;
}
}
- else //Has just points.
+ else // Simply of the form A, as in, point indices only.
{
- for( int i = 0 ; i < numIndices; i++ )
+ for(int i = 0; i < numIndices; i++)
{
- std::istringstream isindex( vet[i] );
+ std::istringstream isindex(vet[i]);
isindex >> ptIdx[i];
texIdx[i] = 0;
nrmIdx[i] = 0;
}
//If it is a triangle
- if( numIndices == 3 )
+ if(numIndices == 3)
{
- for( int i = 0 ; i < 3; i++ )
+ for(int i = 0; i < 3; i++)
{
- triangle.pntIndex[i] = ptIdx[i] - 1 - pntAcum;
- triangle.nrmIndex[i] = nrmIdx[i] - 1 - nrmAcum;
- triangle.texIndex[i] = texIdx[i] - 1 - texAcum;
+ triangle.pointIndex[i] = ptIdx[i] - 1 - pntAcum;
+ triangle.normalIndex[i] = nrmIdx[i] - 1 - nrmAcum;
+ triangle.textureIndex[i] = texIdx[i] - 1 - texAcum;
}
- mTriangles.PushBack( triangle );
+ mTriangles.PushBack(triangle);
face++;
}
//If on the other hand it is a quad, we will create two triangles
- else if( numIndices == 4 )
+ else if(numIndices == 4)
{
- for( int i = 0 ; i < 3; i++ )
+ for(int i = 0; i < 3; i++)
{
- triangle.pntIndex[i] = ptIdx[i] - 1 - pntAcum;
- triangle.nrmIndex[i] = nrmIdx[i] - 1 - nrmAcum;
- triangle.texIndex[i] = texIdx[i] - 1 - texAcum;
+ triangle.pointIndex[i] = ptIdx[i] - 1 - pntAcum;
+ triangle.normalIndex[i] = nrmIdx[i] - 1 - nrmAcum;
+ triangle.textureIndex[i] = texIdx[i] - 1 - texAcum;
}
- mTriangles.PushBack( triangle );
+ mTriangles.PushBack(triangle);
face++;
- for( int i = 0 ; i < 3; i++ )
+ for(int i = 0; i < 3; i++)
{
- int idx = ( i + 2 ) % numIndices;
- triangle2.pntIndex[i] = ptIdx[idx] - 1 - pntAcum;
- triangle2.nrmIndex[i] = nrmIdx[idx] - 1 - nrmAcum;
- triangle2.texIndex[i] = texIdx[idx] - 1 - texAcum;
+ int idx = (i + 2) % numIndices;
+ triangle2.pointIndex[i] = ptIdx[idx] - 1 - pntAcum;
+ triangle2.normalIndex[i] = nrmIdx[idx] - 1 - nrmAcum;
+ triangle2.textureIndex[i] = texIdx[idx] - 1 - texAcum;
}
- mTriangles.PushBack( triangle2 );
+ mTriangles.PushBack(triangle2);
face++;
}
}
- else if ( tag == "usemtl" )
+ else if(tag == "usemtl")
{
isline >> strMatActual;
}
- else if ( tag == "mtllib" )
+ else if(tag == "mtllib")
{
isline >> strMatActual;
}
- else if ( tag == "g" )
+ else if(tag == "g")
{
isline >> name;
}
- else
- {
- }
}
- if ( iniObj )
+ if(iniObj)
{
- CenterAndScale( true, mPoints );
- mSceneLoaded = true;
- mHasTexture = hasTexture;
- mHasNormalMap = hasNormalMap;
+ CenterAndScale(true, mPoints);
+ mSceneLoaded = true;
+ mHasTexturePoints = hasTexture;
return true;
}
return false;
-
}
-void ObjLoader::LoadMaterial( char* objBuffer, std::streampos fileSize, std::string& texture0Url,
- std::string& texture1Url, std::string& texture2Url )
+void ObjLoader::LoadMaterial(char* objBuffer, std::streampos fileSize, std::string& diffuseTextureUrl, std::string& normalTextureUrl, std::string& glossTextureUrl)
{
- float fR,fG,fB;
+ float fR, fG, fB;
std::string info;
- std::string input = objBuffer;
+ std::string input(objBuffer, fileSize);
std::istringstream ss(input);
ss.imbue(std::locale("C"));
std::string line;
- std::getline( ss, line );
+ std::getline(ss, line);
- while ( std::getline( ss, line ) )
+ while(std::getline(ss, line))
{
- std::istringstream isline( line, std::istringstream::in );
- std::string tag;
+ std::istringstream isline(line, std::istringstream::in);
+ std::string tag;
isline >> tag;
- if ( tag == "newmtl" ) //name of the material
+ if(tag == "newmtl") //name of the material
{
isline >> info;
}
- else if ( tag == "Kd" ) //diffuse color
+ else if(tag == "Ka") //ambient color
{
isline >> fR >> fG >> fB;
}
- else if ( tag == "Kd" ) //Ambient color
+ else if(tag == "Kd") //diffuse color
{
isline >> fR >> fG >> fB;
}
- else if ( tag == "Tf" ) //color
+ else if(tag == "Ks") //specular color
{
+ isline >> fR >> fG >> fB;
}
- else if ( tag == "Ni" )
+ else if(tag == "Tf") //color
{
}
- else if ( tag == "map_Kd" )
+ else if(tag == "Ni")
+ {
+ }
+ else if(tag == "map_Kd")
{
isline >> info;
- texture0Url = info;
+ diffuseTextureUrl = info;
+ mHasDiffuseMap = true;
}
- else if ( tag == "bump" )
+ else if(tag == "bump")
{
isline >> info;
- texture1Url = info;
- mHasNormalMap = true;
+ normalTextureUrl = info;
+ mHasNormalMap = true;
}
- else if ( tag == "map_Ks" )
+ else if(tag == "map_Ks")
{
isline >> info;
- texture2Url = info;
+ glossTextureUrl = info;
+ mHasSpecularMap = true;
}
}
mMaterialLoaded = true;
}
-Geometry ObjLoader::CreateGeometry( Toolkit::Model3dView::IlluminationType illuminationType )
+Geometry ObjLoader::CreateGeometry(int objectProperties, bool useSoftNormals)
{
- Dali::Vector<Vertex> vertices;
- Dali::Vector<Vector2> textures;
- Dali::Vector<VertexExt> verticesExt;
+ Geometry surface = Geometry::New();
+
+ Dali::Vector<Vertex> vertices;
+ Dali::Vector<Vector2> textures;
+ Dali::Vector<VertexExt> verticesExt;
Dali::Vector<unsigned short> indices;
- CreateGeometryArray( vertices, textures, verticesExt, indices );
+ CreateGeometryArray(vertices, textures, verticesExt, indices, useSoftNormals);
//All vertices need at least Position and Normal
Property::Map vertexFormat;
- vertexFormat["aPosition"] = Property::VECTOR3;
- vertexFormat["aNormal"] = Property::VECTOR3;
- PropertyBuffer surfaceVertices = PropertyBuffer::New( vertexFormat );
- surfaceVertices.SetData( &vertices[0], vertices.Size() );
-
- Geometry surface = Geometry::New();
- surface.AddVertexBuffer( surfaceVertices );
+ vertexFormat["aPosition"] = Property::VECTOR3;
+ vertexFormat["aNormal"] = Property::VECTOR3;
+ VertexBuffer surfaceVertices = VertexBuffer::New(vertexFormat);
+ surfaceVertices.SetData(&vertices[0], vertices.Size());
+ surface.AddVertexBuffer(surfaceVertices);
//Some need texture coordinates
- if( ( (illuminationType == Toolkit::Model3dView::DIFFUSE_WITH_NORMAL_MAP ) ||
- (illuminationType == Toolkit::Model3dView::DIFFUSE_WITH_TEXTURE ) ) && mHasTexture )
+ if((objectProperties & TEXTURE_COORDINATES) && mHasTexturePoints && mHasDiffuseMap)
{
Property::Map textureFormat;
textureFormat["aTexCoord"] = Property::VECTOR2;
- PropertyBuffer extraVertices = PropertyBuffer::New( textureFormat );
- extraVertices.SetData( &textures[0], textures.Size() );
+ VertexBuffer extraVertices = VertexBuffer::New(textureFormat);
+ extraVertices.SetData(&textures[0], textures.Size());
- surface.AddVertexBuffer( extraVertices );
+ surface.AddVertexBuffer(extraVertices);
}
//Some need tangent and bitangent
- if( illuminationType == Toolkit::Model3dView::DIFFUSE_WITH_NORMAL_MAP && mHasNormalMap && mHasTexture )
+ if((objectProperties & TANGENTS) && (objectProperties & BINORMALS) && mHasTexturePoints)
{
Property::Map vertexExtFormat;
- vertexExtFormat["aTangent"] = Property::VECTOR3;
+ vertexExtFormat["aTangent"] = Property::VECTOR3;
vertexExtFormat["aBiNormal"] = Property::VECTOR3;
- PropertyBuffer extraVertices = PropertyBuffer::New( vertexExtFormat );
- extraVertices.SetData( &verticesExt[0], verticesExt.Size() );
+ VertexBuffer extraVertices = VertexBuffer::New(vertexExtFormat);
+ extraVertices.SetData(&verticesExt[0], verticesExt.Size());
- surface.AddVertexBuffer( extraVertices );
+ surface.AddVertexBuffer(extraVertices);
}
- if ( indices.Size() )
+ //If indices are required, we set them.
+ if(indices.Size())
{
- surface.SetIndexBuffer ( &indices[0], indices.Size() );
+ surface.SetIndexBuffer(&indices[0], indices.Size());
}
- vertices.Clear();
- verticesExt.Clear();
- indices.Clear();
-
return surface;
}
bool ObjLoader::IsTexturePresent()
{
- return mHasTexture;
+ return mHasTexturePoints;
+}
+
+bool ObjLoader::IsDiffuseMapPresent()
+{
+ return mHasDiffuseMap;
}
bool ObjLoader::IsNormalMapPresent()
return mHasNormalMap;
}
+bool ObjLoader::IsSpecularMapPresent()
+{
+ return mHasSpecularMap;
+}
+
} // namespace Internal
} // namespace Toolkit
} // namespace Dali
projects / platform / core / uifw / dali-toolkit.git / blobdiff