/// Returns the arnold shader to assign to the procedural.
AtNode *arnoldShader()
{
bool overrideShaders = false;
MPlug plug = FindMayaObjectPlug( "overrideProceduralShaders" );
if( !plug.isNull() )
{
// if we've been told explicitly not to override the shaders
// in the procedurals, then early out.
overrideShaders = plug.asBool();
if( !overrideShaders )
{
return 0;
}
}
unsigned instNumber = m_dagPath.isInstanced() ? m_dagPath.instanceNumber() : 0;
MPlug shadingGroupPlug = GetNodeShadingGroup(m_dagPath.node(), instNumber);
if( !overrideShaders )
{
// if we weren't explicitly told to override the shaders, then
// decide whether to or not based on whether a non-default
// shader has been applied to the shape by the user.
MObject shadingGroupNode = shadingGroupPlug.node();
MFnDependencyNode fnShadingGroupNode( shadingGroupNode );
if( fnShadingGroupNode.name() != "initialShadingGroup" )
{
overrideShaders = true;
}
}
if( overrideShaders )
{
return ExportNode( shadingGroupPlug );
}
else
{
return 0;
}
}
virtual void ExportUserAttrs( AtNode *node )
{
// Get the optional attributes and export them as user vars
MPlug plug = FindMayaObjectPlug( "shaderAssignation" );
if( !plug.isNull() )
{
AiNodeDeclare( node, "shaderAssignation", "constant STRING" );
AiNodeSetStr( node, "shaderAssignation", plug.asString().asChar() );
}
plug = FindMayaObjectPlug( "displacementAssignation" );
if( !plug.isNull() )
{
AiNodeDeclare( node, "displacementAssignation", "constant STRING" );
AiNodeSetStr( node, "displacementAssignation", plug.asString().asChar() );
}
plug = FindMayaObjectPlug( "shaderAssignmentfile" );
if( !plug.isNull() )
{
AiNodeDeclare( node, "shaderAssignmentfile", "constant STRING" );
AiNodeSetStr( node, "shaderAssignmentfile", plug.asString().asChar() );
}
plug = FindMayaObjectPlug( "overrides" );
if( !plug.isNull() )
{
AiNodeDeclare( node, "overrides", "constant STRING" );
AiNodeSetStr( node, "overrides", plug.asString().asChar() );
}
plug = FindMayaObjectPlug( "overridefile" );
if( !plug.isNull() )
{
AiNodeDeclare( node, "overridefile", "constant STRING" );
AiNodeSetStr( node, "overridefile", plug.asString().asChar() );
}
plug = FindMayaObjectPlug( "userAttributes" );
if( !plug.isNull() )
{
AiNodeDeclare( node, "userAttributes", "constant STRING" );
AiNodeSetStr( node, "userAttributes", plug.asString().asChar() );
}
plug = FindMayaObjectPlug( "userAttributesfile" );
if( !plug.isNull() )
{
AiNodeDeclare( node, "userAttributesfile", "constant STRING" );
AiNodeSetStr( node, "userAttributesfile", plug.asString().asChar() );
}
plug = FindMayaObjectPlug( "skipJson" );
if( !plug.isNull() )
{
AiNodeDeclare( node, "skipJson", "constant BOOL" );
AiNodeSetBool( node, "skipJson", plug.asBool() );
}
plug = FindMayaObjectPlug( "skipShaders" );
if( !plug.isNull() )
{
AiNodeDeclare( node, "skipShaders", "constant BOOL" );
AiNodeSetBool( node, "skipShaders", plug.asBool() );
}
plug = FindMayaObjectPlug( "skipOverrides" );
if( !plug.isNull() )
{
AiNodeDeclare( node, "skipOverrides", "constant BOOL" );
AiNodeSetBool( node, "skipOverrides", plug.asBool() );
}
plug = FindMayaObjectPlug( "skipUserAttributes" );
if( !plug.isNull() )
{
AiNodeDeclare( node, "skipUserAttributes", "constant BOOL" );
AiNodeSetBool( node, "skipUserAttributes", plug.asBool() );
}
plug = FindMayaObjectPlug( "skipDisplacements" );
if( !plug.isNull() )
{
AiNodeDeclare( node, "skipDisplacements", "constant BOOL" );
AiNodeSetBool( node, "skipDisplacements", plug.asBool() );
}
plug = FindMayaObjectPlug( "objectPattern" );
if( !plug.isNull() )
{
AiNodeDeclare( node, "objectPattern", "constant STRING" );
AiNodeSetStr( node, "objectPattern", plug.asString().asChar() );
}
plug = FindMayaObjectPlug( "assShaders" );
if( !plug.isNull() )
{
AiNodeDeclare( node, "assShaders", "constant STRING" );
AiNodeSetStr( node, "assShaders", plug.asString().asChar() );
}
plug = FindMayaObjectPlug( "radiusPoint" );
if( !plug.isNull() )
{
AiNodeDeclare( node, "radiusPoint", "constant FLOAT" );
AiNodeSetFlt( node, "radiusPoint", plug.asFloat() );
}
plug = FindMayaObjectPlug( "radiusCurve" );
if( !plug.isNull() )
{
AiNodeDeclare( node, "radiusCurve", "constant FLOAT" );
AiNodeSetFlt( node, "radiusCurve", plug.asFloat() );
}
plug = FindMayaObjectPlug( "modeCurve" );
if( !plug.isNull() )
{
AiNodeDeclare( node, "modeCurve", "constant STRING" );
int modeCurveInt = plug.asInt();
if (modeCurveInt == 1)
AiNodeSetStr(node, "modeCurve", "thick");
else if (modeCurveInt == 2)
AiNodeSetStr(node, "modeCurve", "oriented");
else
AiNodeSetStr(node, "modeCurve", "ribbon");
}
plug = FindMayaObjectPlug( "scaleVelocity" );
if( !plug.isNull() )
{
AiNodeDeclare( node, "scaleVelocity", "constant FLOAT" );
AiNodeSetFlt( node, "scaleVelocity", plug.asFloat() );
}
}
virtual void ExportProcedural( AtNode *node )
{
// do basic node export
ExportMatrix( node, 0 );
AtNode *shader = arnoldShader();
if( shader )
{
AiNodeSetPtr( node, "shader", shader );
}
AiNodeSetInt( node, "visibility", ComputeVisibility() );
MPlug plug = FindMayaObjectPlug( "receiveShadows" );
if( !plug.isNull() )
{
AiNodeSetBool( node, "receive_shadows", plug.asBool() );
}
plug = FindMayaObjectPlug( "aiSelfShadows" );
if( !plug.isNull() )
{
AiNodeSetBool( node, "self_shadows", plug.asBool() );
}
plug = FindMayaObjectPlug( "aiOpaque" );
if( !plug.isNull() )
{
AiNodeSetBool( node, "opaque", plug.asBool() );
}
// export any shading groups or displacement shaders which look like they
// may be connected to procedural parameters. this ensures that maya shaders
// the procedural will expect to find at rendertime will be exported to the
// ass file (they otherwise might not be if they're not assigned to any objects).
exportShadingInputs();
// now set the procedural-specific parameters
MFnDagNode fnDagNode( m_dagPath );
MBoundingBox bound = fnDagNode.boundingBox();
AiNodeSetPnt( node, "min", bound.min().x, bound.min().y, bound.min().z );
AiNodeSetPnt( node, "max", bound.max().x, bound.max().y, bound.max().z );
const char *dsoPath = getenv( "IECOREARNOLD_PROCEDURAL_PATH" );
AiNodeSetStr( node, "dso", dsoPath ? dsoPath : "ieProcedural.so" );
AiNodeDeclare( node, "className", "constant STRING" );
AiNodeDeclare( node, "classVersion", "constant INT" );
AiNodeDeclare( node, "parameterValues", "constant ARRAY STRING" );
// cast should be ok as we're registered to only work on procedural holders
IECoreMaya::ProceduralHolder *pHolder = static_cast<IECoreMaya::ProceduralHolder *>( fnDagNode.userNode() );
std::string className;
int classVersion;
IECore::ParameterisedProceduralPtr procedural = pHolder->getProcedural( &className, &classVersion );
AiNodeSetStr( node, "className", className.c_str() );
AiNodeSetInt( node, "classVersion", classVersion );
IECorePython::ScopedGILLock gilLock;
try
{
boost::python::object parser = IECoreMaya::PythonCmd::globalContext()["IECore"].attr( "ParameterParser" )();
boost::python::object serialised = parser.attr( "serialise" )( procedural->parameters() );
size_t numStrings = IECorePython::len( serialised );
AtArray *stringArray = AiArrayAllocate( numStrings, 1, AI_TYPE_STRING );
for( size_t i=0; i<numStrings; i++ )
{
std::string s = boost::python::extract<std::string>( serialised[i] );
// hack to workaround ass parsing errors
/// \todo Remove when we get the Arnold version that fixes this
for( size_t c = 0; c<s.size(); c++ )
{
if( s[c] == '#' )
{
s[c] = '@';
}
}
AiArraySetStr( stringArray, i, s.c_str() );
}
AiNodeSetArray( node, "parameterValues", stringArray );
}
catch( boost::python::error_already_set )
{
PyErr_Print();
}
}
virtual void ExportProcedural( AtNode *node )
{
// do basic node export
ExportMatrix( node, 0 );
// AiNodeSetPtr( node, "shader", arnoldShader(node) );
AiNodeSetInt( node, "visibility", ComputeVisibility() );
MPlug plug = FindMayaObjectPlug( "receiveShadows" );
if( !plug.isNull() )
{
AiNodeSetBool( node, "receive_shadows", plug.asBool() );
}
plug = FindMayaObjectPlug( "aiSelfShadows" );
if( !plug.isNull() )
{
AiNodeSetBool( node, "self_shadows", plug.asBool() );
}
plug = FindMayaObjectPlug( "aiOpaque" );
if( !plug.isNull() )
{
AiNodeSetBool( node, "opaque", plug.asBool() );
}
// now set the procedural-specific parameters
AiNodeSetBool( node, "load_at_init", true ); // just for now so that it can load the shaders at the right time
MFnDagNode fnDagNode( m_dagPath );
MBoundingBox bound = fnDagNode.boundingBox();
AiNodeSetPnt( node, "min", bound.min().x-m_dispPadding, bound.min().y-m_dispPadding, bound.min().z-m_dispPadding );
AiNodeSetPnt( node, "max", bound.max().x+m_dispPadding, bound.max().y, bound.max().z+m_dispPadding );
const char *dsoPath = getenv( "ALEMBIC_ARNOLD_PROCEDURAL_PATH" );
AiNodeSetStr( node, "dso", dsoPath ? dsoPath : "bb_AlembicArnoldProcedural.so" );
// Set the parameters for the procedural
//abcFile path
MString abcFile = fnDagNode.findPlug("cacheFileName").asString().expandEnvironmentVariablesAndTilde();
//object path
MString objectPath = fnDagNode.findPlug("cacheGeomPath").asString();
//object pattern
MString objectPattern = "*";
plug = FindMayaObjectPlug( "objectPattern" );
if (!plug.isNull() )
{
if (plug.asString() != "")
{
objectPattern = plug.asString();
}
}
//object pattern
MString excludePattern = "";
plug = FindMayaObjectPlug( "excludePattern" );
if (!plug.isNull() )
{
if (plug.asString() != "")
{
excludePattern = plug.asString();
}
}
float shutterOpen = 0.0;
plug = FindMayaObjectPlug( "shutterOpen" );
if (!plug.isNull() )
{
shutterOpen = plug.asFloat();
}
float shutterClose = 0.0;
plug = FindMayaObjectPlug( "shutterClose" );
if (!plug.isNull() )
{
shutterClose = plug.asFloat();
}
float timeOffset = 0.0;
plug = FindMayaObjectPlug( "timeOffset" );
if (!plug.isNull() )
{
timeOffset = plug.asFloat();
}
int subDIterations = 0;
plug = FindMayaObjectPlug( "ai_subDIterations" );
if (!plug.isNull() )
{
subDIterations = plug.asInt();
}
MString nameprefix = "";
plug = FindMayaObjectPlug( "namePrefix" );
if (!plug.isNull() )
{
nameprefix = plug.asString();
}
// bool exportFaceIds = fnDagNode.findPlug("exportFaceIds").asBool();
bool makeInstance = true; // always on for now
plug = FindMayaObjectPlug( "makeInstance" );
if (!plug.isNull() )
{
makeInstance = plug.asBool();
}
bool flipv = false;
plug = FindMayaObjectPlug( "flipv" );
if (!plug.isNull() )
{
flipv = plug.asBool();
}
bool invertNormals = false;
plug = FindMayaObjectPlug( "invertNormals" );
if (!plug.isNull() )
{
invertNormals = plug.asBool();
}
short i_subDUVSmoothing = 1;
plug = FindMayaObjectPlug( "ai_subDUVSmoothing" );
if (!plug.isNull() )
{
i_subDUVSmoothing = plug.asShort();
}
MString subDUVSmoothing;
switch (i_subDUVSmoothing)
{
case 0:
subDUVSmoothing = "pin_corners";
break;
case 1:
subDUVSmoothing = "pin_borders";
break;
case 2:
subDUVSmoothing = "linear";
break;
case 3:
subDUVSmoothing = "smooth";
break;
default :
subDUVSmoothing = "pin_corners";
break;
}
MTime curTime = MAnimControl::currentTime();
// fnDagNode.findPlug("time").getValue( frame );
// MTime frameOffset;
// fnDagNode.findPlug("timeOffset").getValue( frameOffset );
float time = curTime.as(MTime::kFilm)+timeOffset;
MString argsString;
if (objectPath != "|"){
argsString += "-objectpath ";
// convert "|" to "/"
argsString += MString(replace_all(objectPath,"|","/").c_str());
}
if (objectPattern != "*"){
argsString += "-pattern ";
argsString += objectPattern;
}
if (excludePattern != ""){
argsString += "-excludepattern ";
argsString += excludePattern;
}
if (shutterOpen != 0.0){
argsString += " -shutteropen ";
argsString += shutterOpen;
}
if (shutterClose != 0.0){
argsString += " -shutterclose ";
argsString += shutterClose;
}
if (subDIterations != 0){
argsString += " -subditerations ";
argsString += subDIterations;
argsString += " -subduvsmoothing ";
argsString += subDUVSmoothing;
}
if (makeInstance){
argsString += " -makeinstance ";
}
if (nameprefix != ""){
argsString += " -nameprefix ";
argsString += nameprefix;
}
if (flipv){
argsString += " -flipv ";
}
if (invertNormals){
argsString += " -invertNormals ";
}
argsString += " -filename ";
argsString += abcFile;
argsString += " -frame ";
argsString += time;
if (m_displaced){
argsString += " -disp_map ";
argsString += AiNodeGetName(m_dispNode);
}
AiNodeSetStr(node, "data", argsString.asChar());
ExportUserAttrs(node);
// Export light linking per instance
ExportLightLinking(node);
}