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closes https://github.com/assimp/assimp/issues/954: add import of vertex 

colors in
penGEX-importer.
pull/1015/head
Kim Kulling 2016-09-27 19:40:06 +02:00
parent 3245d2d804
commit 78dae87de2
2 changed files with 47 additions and 3 deletions
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48
code/OpenGEXImporter.cpp
View File

@ -223,17 +223,19 @@ static void propId2StdString( Property *prop, std::string &name, std::string &ke
OpenGEXImporter::VertexContainer::VertexContainer()
: m_numVerts( 0 )
, m_vertices( nullptr )
, m_numColors( 0 )
, m_colors( nullptr )
, m_numNormals( 0 )
, m_normals( nullptr )
, m_numUVComps()
, m_textureCoords()
{
, m_textureCoords() {
// empty
}
//------------------------------------------------------------------------------------------------
OpenGEXImporter::VertexContainer::~VertexContainer() {
delete[] m_vertices;
delete[] m_colors;
delete[] m_normals;
for(auto &texcoords : m_textureCoords) {
@ -710,6 +712,7 @@ void OpenGEXImporter::handleMeshNode( ODDLParser::DDLNode *node, aiScene *pScene
enum MeshAttribute {
None,
Position,
Color,
Normal,
TexCoord
};
@ -718,8 +721,10 @@ enum MeshAttribute {
static MeshAttribute getAttributeByName( const char *attribName ) {
ai_assert( nullptr != attribName );
if( 0 == strncmp( "position", attribName, strlen( "position" ) ) ) {
if ( 0 == strncmp( "position", attribName, strlen( "position" ) ) ) {
return Position;
} else if ( 0 == strncmp( "color", attribName, strlen( "color" ) ) ) {
return Color;
} else if( 0 == strncmp( "normal", attribName, strlen( "normal" ) ) ) {
return Normal;
} else if( 0 == strncmp( "texcoord", attribName, strlen( "texcoord" ) ) ) {
@ -747,6 +752,22 @@ static void fillVector3( aiVector3D *vec3, Value *vals ) {
vec3->Set( x, y, z );
}
//------------------------------------------------------------------------------------------------
static void fillColor4( aiColor4D *col4, Value *vals ) {
ai_assert( nullptr != col4 );
ai_assert( nullptr != vals );
float r( 0.0f ), g( 0.0f ), b( 0.0f ), a ( 1.0f );
Value *next( vals );
col4->r = next->getFloat();
next = next->m_next;
col4->g = next->getFloat();
next = next->m_next;
col4->b = next->getFloat();
next = next->m_next;
col4->a = next->getFloat();
}
//------------------------------------------------------------------------------------------------
static size_t countDataArrayListItems( DataArrayList *vaList ) {
size_t numItems( 0 );
@ -774,6 +795,14 @@ static void copyVectorArray( size_t numItems, DataArrayList *vaList, aiVector3D
}
}
//------------------------------------------------------------------------------------------------
static void copyColor4DArray( size_t numItems, DataArrayList *vaList, aiColor4D *colArray ) {
for ( size_t i = 0; i < numItems; i++ ) {
Value *next( vaList->m_dataList );
fillColor4( &colArray[ i ], next );
}
}
//------------------------------------------------------------------------------------------------
void OpenGEXImporter::handleVertexArrayNode( ODDLParser::DDLNode *node, aiScene *pScene ) {
if( nullptr == node ) {
@ -801,6 +830,10 @@ void OpenGEXImporter::handleVertexArrayNode( ODDLParser::DDLNode *node, aiScene
m_currentVertices.m_numVerts = numItems;
m_currentVertices.m_vertices = new aiVector3D[ numItems ];
copyVectorArray( numItems, vaList, m_currentVertices.m_vertices );
} else if ( Color == attribType ) {
m_currentVertices.m_numColors = numItems;
m_currentVertices.m_colors = new aiColor4D[ numItems ];
copyColor4DArray( numItems, vaList, m_currentVertices.m_colors );
} else if( Normal == attribType ) {
m_currentVertices.m_numNormals = numItems;
m_currentVertices.m_normals = new aiVector3D[ numItems ];
@ -835,6 +868,11 @@ void OpenGEXImporter::handleIndexArrayNode( ODDLParser::DDLNode *node, aiScene *
m_currentMesh->mFaces = new aiFace[ numItems ];
m_currentMesh->mNumVertices = numItems * 3;
m_currentMesh->mVertices = new aiVector3D[ m_currentMesh->mNumVertices ];
bool hasColors( false );
if ( m_currentVertices.m_numColors > 0 ) {
m_currentMesh->mColors[0] = new aiColor4D[ m_currentVertices.m_numColors ];
hasColors = true;
}
bool hasNormalCoords( false );
if ( m_currentVertices.m_numNormals > 0 ) {
m_currentMesh->mNormals = new aiVector3D[ m_currentMesh->mNumVertices ];
@ -858,6 +896,10 @@ void OpenGEXImporter::handleIndexArrayNode( ODDLParser::DDLNode *node, aiScene *
ai_assert( index < m_currentMesh->mNumVertices );
aiVector3D &pos = ( m_currentVertices.m_vertices[ idx ] );
m_currentMesh->mVertices[ index ].Set( pos.x, pos.y, pos.z );
if ( hasColors ) {
aiColor4D &col = m_currentVertices.m_colors[ idx ];
m_currentMesh->mColors[ 0 ][ index ] = col;
}
if ( hasNormalCoords ) {
aiVector3D &normal = ( m_currentVertices.m_normals[ idx ] );
m_currentMesh->mNormals[ index ].Set( normal.x, normal.y, normal.z );

2
code/OpenGEXImporter.h
View File

@ -142,6 +142,8 @@ private:
struct VertexContainer {
size_t m_numVerts;
aiVector3D *m_vertices;
size_t m_numColors;
aiColor4D *m_colors;
size_t m_numNormals;
aiVector3D *m_normals;
size_t m_numUVComps[ AI_MAX_NUMBER_OF_TEXTURECOORDS ];