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BB_gpuCacheTranslator.cpp
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BB_gpuCacheTranslator.cpp
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/* (c)2012 BlueBolt Ltd. All rights reserved.
*
* BB_gpuCacheTranslator.cpp
*
* Created on: 20 Jul 2012
* Author: ashley-r
*/
#include <maya/MFnDagNode.h>
#include <maya/MBoundingBox.h>
#include <maya/MPlugArray.h>
#include <extension/Extension.h>
#include <translators/shape/ShapeTranslator.h>
// #include "bb_alembicArchiveShape.h"
#include <Alembic/AbcCoreAbstract/Foundation.h>
/*
* Return a new string with all occurrences of 'from' replaced with 'to'
*/
std::string replace_all(const MString &str, const char *from, const char *to)
{
std::string result(str.asChar());
std::string::size_type
index = 0,
from_len = strlen(from),
to_len = strlen(to);
while ((index = result.find(from, index)) != std::string::npos) {
result.replace(index, from_len, to);
index += to_len;
}
return result;
}
class BB_gpuCacheTranslator : public CShapeTranslator
{
public :
virtual AtNode *CreateArnoldNodes()
{
m_isMasterDag = IsMasterInstance();
m_masterDag = GetMasterInstance();
if (m_isMasterDag)
{
return AddArnoldNode( "procedural" );
}
else
{
return AddArnoldNode( "ginstance" );
}
}
virtual void Export( AtNode* instance )
{
Update(instance);
}
virtual void Update(AtNode* node)
{
const char* nodeType = AiNodeEntryGetName(AiNodeGetNodeEntry(node));
if (strcmp(nodeType, "ginstance") == 0)
{
ExportInstance(node, m_masterDag);
}
else
{
ExportProcedural(node);
}
}
virtual AtNode* ExportInstance(AtNode *instance, const MDagPath& masterInstance)
{
AtNode* masterNode = AiNodeLookUpByName(masterInstance.partialPathName().asChar());
int instanceNum = m_dagPath.instanceNumber();
if ( instanceNum > 0 )
{
std::cout << "ExportInstance::instanceNum :: " << instanceNum << std::endl;
// char nodeName[65535];
AiNodeSetStr(instance, "name", m_dagPath.partialPathName().asChar());
ExportMatrix(instance, 0);
AiNodeSetPtr(instance, "node", masterNode);
AiNodeSetBool(instance, "inherit_xform", false);
int visibility = AiNodeGetInt(masterNode, "visibility");
AiNodeSetInt(instance, "visibility", visibility);
AiNodeSetPtr( instance, "shader", arnoldShader(instance) );
// Export light linking per instance
ExportLightLinking(instance);
}
return instance;
}
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);
}
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 bool RequiresMotionData()
{
return IsMotionBlurEnabled( MTOA_MBLUR_OBJECT ) && IsLocalMotionBlurEnabled();
}
virtual void ExportMotion( AtNode *node, unsigned int step )
{
if( !IsMotionBlurEnabled() )
{
return;
}
ExportMatrix( node, step );
}
static void nodeInitialiser( CAbTranslator context )
{
CExtensionAttrHelper helper( context.maya, "procedural" );
// make the attributes
CAttrData data;
data.stringDefault = "";
data.name = "aiTraceSets";
data.shortName = "trace_sets";
data.type = AI_TYPE_STRING;
helper.MakeInput(data);
data.stringDefault = "";
data.name = "aiSssSetname";
data.shortName = "ai_sss_setname";
data.type = AI_TYPE_STRING;
helper.MakeInput(data);
data.stringDefault = "";
data.name = "objectPattern";
data.shortName = "object_pattern";
data.type = AI_TYPE_STRING;
helper.MakeInput(data);
data.stringDefault = "";
data.name = "excludePattern";
data.shortName = "exclude_pattern";
data.type = AI_TYPE_STRING;
helper.MakeInput(data);
data.stringDefault = "";
data.name = "namePrefix";
data.shortName = "name_prefix";
data.type = AI_TYPE_STRING;
helper.MakeInput(data);
data.defaultValue.BOOL = true;
data.name = "makeInstance";
data.shortName = "make_instance";
data.type = AI_TYPE_BOOLEAN;
helper.MakeInputBoolean(data);
data.defaultValue.BOOL = false;
data.name = "flipv";
data.shortName = "flip_v";
data.type = AI_TYPE_BOOLEAN;
helper.MakeInputBoolean(data);
data.defaultValue.BOOL = false;
data.name = "invertNormals";
data.shortName = "invert_normals";
data.type = AI_TYPE_BOOLEAN;
helper.MakeInputBoolean(data);
data.stringDefault = "";
data.name = "shaderAssignation";
data.shortName = "shader_assignation";
data.type = AI_TYPE_STRING;
helper.MakeInput(data);
data.stringDefault = "";
data.name = "displacementAssignation";
data.shortName = "displacement_assignation";
data.type = AI_TYPE_STRING;
helper.MakeInput(data);
data.stringDefault = "";
data.name = "shaderAssignmentfile";
data.shortName = "shader_assignment_file";
data.type = AI_TYPE_STRING;
helper.MakeInput(data);
data.stringDefault = "";
data.name = "overrides";
data.shortName = "overrides";
data.type = AI_TYPE_STRING;
helper.MakeInput(data);
data.stringDefault = "";
data.name = "overridefile";
data.shortName = "override_file";
data.type = AI_TYPE_STRING;
helper.MakeInput(data);
data.stringDefault = "";
data.name = "userAttributes";
data.shortName = "user_attributes";
data.type = AI_TYPE_STRING;
helper.MakeInput(data);
data.stringDefault = "";
data.name = "userAttributesfile";
data.shortName = "user_attributes_file";
data.type = AI_TYPE_STRING;
helper.MakeInput(data);
data.defaultValue.BOOL = false;
data.name = "skipJson";
data.shortName = "skip_json";
data.type = AI_TYPE_BOOLEAN;
helper.MakeInputBoolean(data);
data.defaultValue.BOOL = false;
data.name = "skipShaders";
data.shortName = "skip_shaders";
data.type = AI_TYPE_BOOLEAN;
helper.MakeInputBoolean(data);
data.defaultValue.BOOL = false;
data.name = "skipOverrides";
data.shortName = "skip_overrides";
data.type = AI_TYPE_BOOLEAN;
helper.MakeInputBoolean(data);
data.defaultValue.BOOL = false;
data.name = "skipUserAttributes";
data.shortName = "skip_user_attributes";
data.type = AI_TYPE_BOOLEAN;
helper.MakeInputBoolean(data);
data.defaultValue.BOOL = false;
data.name = "skipDisplacements";
data.shortName = "skip_displacements";
data.type = AI_TYPE_BOOLEAN;
helper.MakeInputBoolean(data);
data.stringDefault = "";
data.name = "objectPattern";
data.shortName = "object_pattern";
data.type = AI_TYPE_STRING;
helper.MakeInput(data);
data.stringDefault = "";
data.name = "assShaders";
data.shortName = "ass_shaders";
data.type = AI_TYPE_STRING;
helper.MakeInput(data);
data.defaultValue.FLT = 0.1f;
data.name = "radiusPoint";
data.shortName = "radius_point";
data.type = AI_TYPE_FLOAT;
helper.MakeInputFloat(data);
data.defaultValue.FLT = 0.1f;
data.name = "radiusCurve";
data.shortName = "radius_curve";
data.type = AI_TYPE_FLOAT;
helper.MakeInputFloat(data);
data.name = "modeCurve";
data.shortName = "mode_curve";
data.enums.append("ribbon");
data.enums.append("thick");
data.enums.append("oriented");
data.defaultValue.INT = 0;
helper.MakeInputEnum(data);
data.defaultValue.FLT = 1.0f;
data.name = "scaleVelocity";
data.shortName = "scale_velocity";
data.type = AI_TYPE_FLOAT;
helper.MakeInputFloat(data);
}
static void *creator()
{
return new BB_gpuCacheTranslator();
}
protected :
void GetDisplacement(MObject& obj,
float& dispPadding,
bool& enableAutoBump)
{
MFnDependencyNode dNode(obj);
MPlug plug = dNode.findPlug("aiDisplacementPadding");
if (!plug.isNull())
dispPadding = MAX(dispPadding, plug.asFloat());
if (!enableAutoBump)
{
plug = dNode.findPlug("aiDisplacementAutoBump");
if (!plug.isNull())
enableAutoBump = enableAutoBump || plug.asBool();
}
}
/// Returns the arnold shader assigned to the procedural. This duplicates
/// code in GeometryTranslator.h, but there's not much can be done about that
/// since the GeometryTranslator isn't part of the MtoA public API.
AtNode *arnoldShader(AtNode* node)
{
m_displaced = false;
float maximumDisplacementPadding = -AI_BIG;
bool enableAutoBump = false;
unsigned instNumber = m_dagPath.isInstanced() ? m_dagPath.instanceNumber() : 0;
MPlug shadingGroupPlug = GetNodeShadingGroup(m_dagPath.node(), instNumber);
//find and export any displacment shaders attached
// DISPLACEMENT MATERIAL EXPORT
MPlugArray connections;
MFnDependencyNode fnDGShadingGroup(shadingGroupPlug.node());
MPlug shaderPlug = fnDGShadingGroup.findPlug("displacementShader");
shaderPlug.connectedTo(connections, true, false);
// are there any connections to displacementShader?
if (connections.length() > 0)
{
m_displaced = true;
MObject dispNode = connections[0].node();
GetDisplacement(dispNode, maximumDisplacementPadding, enableAutoBump);
m_dispPadding = maximumDisplacementPadding;
AtNode* dispImage(ExportNode(connections[0]));
m_dispNode = dispImage;
}
// Only export displacement attributes if a displacement is applied
if (m_displaced)
{
std::cout << "arnoldShader::m_displaced :: " << m_displaced << std::endl;
// Note that disp_height has no actual influence on the scale of the displacement if it is vector based
// it only influences the computation of the displacement bounds
// AiNodeSetFlt(node, "disp_padding", maximumDisplacementPadding);
}
// return the exported surface shader
return ExportNode( shadingGroupPlug );
}
protected :
MFnDagNode m_DagNode;
bool m_isMasterDag;
bool m_displaced;
float m_dispPadding;
MDagPath m_dagPathRef;
MDagPath m_masterDag;
AtNode* m_dispNode;
};
extern "C"
{
DLLEXPORT void initializeExtension( CExtension &extension )
{
const char * pluginVersion = "1.2";
MString info = "MTOA gpuCache Translator v";
info += pluginVersion;
info += " using ";
info += Alembic::AbcCoreAbstract::GetLibraryVersion().c_str();
MGlobal::displayInfo(info);
extension.Requires( "gpuCache" );
extension.RegisterTranslator(
"gpuCache",
"",
BB_gpuCacheTranslator::creator,
BB_gpuCacheTranslator::nodeInitialiser
);
}
DLLEXPORT void deinitializeExtension( CExtension &extension )
{
}
} // extern "C"