private void buildMeshNodes()
{
MItDependencyNodes it = new MItDependencyNodes(MFn.Type.kMesh);
while (!it.isDone)
{
// Get the dag node of the mesh.
MFnDagNode dagNode = new MFnDagNode(it.thisNode);
// Create a new mesh.
MayaMesh meshNode = new MayaMesh();
// Add the mesh to the all meshes list.
allMeshes.Add(meshNode);
// Configure the mesh node
meshNode.name = dagNode.fullPathName;
dagNode.getPath(meshNode.mayaObjectPath);
meshNode.id = allMeshes.Count - 1;
// The first parent of a mesh is the source transform, even with instances.
meshNode.sourceXForm = pathXformMap[(new MFnDagNode(dagNode.parent(0))).fullPathName];
// Set the source Xform to know it's a source for an instance (its mesh).
meshNode.sourceXForm.isSourceXform = true;
// If the mesh has more than one parent, it has been instanced. We need to know this for computing local positions.
meshNode.isInstanced = dagNode.isInstanced();
// Add the map to the dictionary to search by name.
pathMeshMap[meshNode.name] = meshNode;
it.next();
}
}
private void buildXformTree()
{
// Get the very root of the Maya DAG.
MItDag rootIt = new MItDag();
rootXform.isRoot = true;
rootXform.name = "root";
MFnDagNode rootDagNode = new MFnDagNode(rootIt.root());
rootDagNode.getPath(rootXform.mayaObjectPath);
// Process all children transforms of the root.
processXform(rootXform);
}
private void processXform(MayaXform xform)
{
// Add the current Xform to the list of all xforms.
allXforms.Add(xform);
// Set the Xform's id.
xform.id = allXforms.Count - 1;
// Add the current Xform to the map based on its path.
pathXformMap[xform.name] = xform;
// Build data for this xform.
if (!xform.isRoot)
{
getXformData(xform);
}
MFnDagNode dagNode = new MFnDagNode(xform.mayaObjectPath);
for (uint childIdx = 0; childIdx < dagNode.childCount; ++childIdx)
{
// If the child isn't a transform node, or it is a kManipulator3D (maya api bug), skip it.
MObject childObj = dagNode.child(childIdx);
if (!childObj.hasFn(MFn.Type.kTransform) || childObj.hasFn(MFn.Type.kManipulator3D))
{
continue;
}
// Create a node for the child transform, parent it to this xform, and process the child's children.
MFnDagNode childNode = new MFnDagNode(childObj);
// Strip out nodes we don't care about.
if (xformsToIgnore.Contains(childNode.fullPathName))
{
continue;
}
MayaXform childXform = new MayaXform();
childXform.name = childNode.fullPathName;
childNode.getPath(childXform.mayaObjectPath);
childXform.parent = xform;
xform.children.Add(childXform);
processXform(childXform);
}
}
private void processXform( MayaXform xform )
{
// Add the current Xform to the list of all xforms.
allXforms.Add(xform);
// Set the Xform's id.
xform.id = allXforms.Count - 1;
// Add the current Xform to the map based on its path.
pathXformMap[xform.name] = xform;
// Build data for this xform.
if( !xform.isRoot )
{
getXformData(xform);
}
MFnDagNode dagNode = new MFnDagNode(xform.mayaObjectPath);
for( uint childIdx = 0; childIdx < dagNode.childCount; ++childIdx )
{
// If the child isn't a transform node, or it is a kManipulator3D (maya api bug), skip it.
MObject childObj = dagNode.child(childIdx);
if( !childObj.hasFn(MFn.Type.kTransform) || childObj.hasFn(MFn.Type.kManipulator3D) )
{
continue;
}
// Create a node for the child transform, parent it to this xform, and process the child's children.
MFnDagNode childNode = new MFnDagNode(childObj);
// Strip out nodes we don't care about.
if( xformsToIgnore.Contains(childNode.fullPathName) )
{
continue;
}
MayaXform childXform = new MayaXform();
childXform.name = childNode.fullPathName;
childNode.getPath(childXform.mayaObjectPath);
childXform.parent = xform;
xform.children.Add(childXform);
processXform(childXform);
}
}
private void buildXformTree()
{
// Get the very root of the Maya DAG.
MItDag rootIt = new MItDag();
rootXform.isRoot = true;
rootXform.name = "root";
MFnDagNode rootDagNode = new MFnDagNode(rootIt.root());
rootDagNode.getPath(rootXform.mayaObjectPath);
// Process all children transforms of the root.
processXform(rootXform);
}
private void buildMeshNodes()
{
MItDependencyNodes it = new MItDependencyNodes(MFn.Type.kMesh);
while( !it.isDone )
{
// Get the dag node of the mesh.
MFnDagNode dagNode = new MFnDagNode(it.thisNode);
// Create a new mesh.
MayaMesh meshNode = new MayaMesh();
// Add the mesh to the all meshes list.
allMeshes.Add(meshNode);
// Configure the mesh node
meshNode.name = dagNode.fullPathName;
dagNode.getPath(meshNode.mayaObjectPath);
meshNode.id = allMeshes.Count - 1;
// The first parent of a mesh is the source transform, even with instances.
meshNode.sourceXForm = pathXformMap[(new MFnDagNode(dagNode.parent(0))).fullPathName];
// Set the source Xform to know it's a source for an instance (its mesh).
meshNode.sourceXForm.isSourceXform = true;
// If the mesh has more than one parent, it has been instanced. We need to know this for computing local positions.
meshNode.isInstanced = dagNode.isInstanced();
// Add the map to the dictionary to search by name.
pathMeshMap[meshNode.name] = meshNode;
it.next();
}
}
private void buildLightNodes()
{
MItDependencyNodes it = new MItDependencyNodes(MFn.Type.kLight);
while( !it.isDone )
{
MObject mayaObj = it.thisNode;
if( shouldPruneLight(mayaObj) )
{
it.next();
continue;
}
// Create a new light and add it to the all lights list.
MayaLight light = new MayaLight();
allLights.Add(light);
light.id = allLights.Count - 1;
// Get the dag node of the light for its name and parent.
MFnDagNode dagNode = new MFnDagNode(mayaObj);
dagNode.getPath(light.mayaObjectPath);
light.name = dagNode.fullPathName;
// First parent is the source transform node.
light.sourceXform = pathXformMap[(new MFnDagNode(dagNode.parent(0))).fullPathName];
// Add the light to the dictionary to search by name.
pathLightMap[light.name] = light;
//
// NOTE: Parent transforms of light sources in Maya can NOT be frozen,
// so accessing them is guaranteed to not be frozen.
//
if( mayaObj.hasFn(MFn.Type.kAmbientLight) )
{
MFnAmbientLight mayaLight = new MFnAmbientLight(mayaObj);
light.type = MayaLight.Type.kAmbient;
light.color = new Color(mayaLight.color.r, mayaLight.color.g, mayaLight.color.b, mayaLight.color.a);
light.intensity = mayaLight.intensity;
}
else if( mayaObj.hasFn(MFn.Type.kDirectionalLight) )
{
MFnDirectionalLight mayaLight = new MFnDirectionalLight(mayaObj);
light.type = MayaLight.Type.kDirectional;
light.color = new Color(mayaLight.color.r, mayaLight.color.g, mayaLight.color.b, mayaLight.color.a);
light.intensity = mayaLight.intensity;
}
else if( mayaObj.hasFn(MFn.Type.kPointLight) )
{
MFnPointLight mayaLight = new MFnPointLight(mayaObj);
light.type = MayaLight.Type.kPoint;
light.color = new Color(mayaLight.color.r, mayaLight.color.g, mayaLight.color.b, mayaLight.color.a);
light.intensity = mayaLight.intensity;
light.range = (float)mayaLight.centerOfIllumination;
}
else if( mayaObj.hasFn(MFn.Type.kSpotLight) )
{
MFnSpotLight mayaLight = new MFnSpotLight(mayaObj);
light.type = MayaLight.Type.kSpot;
light.color = new Color(mayaLight.color.r, mayaLight.color.g, mayaLight.color.b, mayaLight.color.a);
light.intensity = mayaLight.intensity;
light.range = (float)mayaLight.centerOfIllumination;
float mayaConeAngle = (float)(mayaLight.coneAngle * 0.5);
light.coneInnerAngle = 57.29578f * mayaConeAngle;
light.coneOuterAngle = 57.29578f * (mayaConeAngle + Math.Abs((float)mayaLight.penumbraAngle));
}
it.next();
}
}
private void buildLightNodes()
{
MItDependencyNodes it = new MItDependencyNodes(MFn.Type.kLight);
while (!it.isDone)
{
MObject mayaObj = it.thisNode;
if (shouldPruneLight(mayaObj))
{
it.next();
continue;
}
// Create a new light and add it to the all lights list.
MayaLight light = new MayaLight();
allLights.Add(light);
light.id = allLights.Count - 1;
// Get the dag node of the light for its name and parent.
MFnDagNode dagNode = new MFnDagNode(mayaObj);
dagNode.getPath(light.mayaObjectPath);
light.name = dagNode.fullPathName;
// First parent is the source transform node.
light.sourceXform = pathXformMap[(new MFnDagNode(dagNode.parent(0))).fullPathName];
// Add the light to the dictionary to search by name.
pathLightMap[light.name] = light;
//
// NOTE: Parent transforms of light sources in Maya can NOT be frozen,
// so accessing them is guaranteed to not be frozen.
//
if (mayaObj.hasFn(MFn.Type.kAmbientLight))
{
MFnAmbientLight mayaLight = new MFnAmbientLight(mayaObj);
light.type = MayaLight.Type.kAmbient;
light.color = new Color(mayaLight.color.r, mayaLight.color.g, mayaLight.color.b, mayaLight.color.a);
light.intensity = mayaLight.intensity;
}
else if (mayaObj.hasFn(MFn.Type.kDirectionalLight))
{
MFnDirectionalLight mayaLight = new MFnDirectionalLight(mayaObj);
light.type = MayaLight.Type.kDirectional;
light.color = new Color(mayaLight.color.r, mayaLight.color.g, mayaLight.color.b, mayaLight.color.a);
light.intensity = mayaLight.intensity;
}
else if (mayaObj.hasFn(MFn.Type.kPointLight))
{
MFnPointLight mayaLight = new MFnPointLight(mayaObj);
light.type = MayaLight.Type.kPoint;
light.color = new Color(mayaLight.color.r, mayaLight.color.g, mayaLight.color.b, mayaLight.color.a);
light.intensity = mayaLight.intensity;
light.range = (float)mayaLight.centerOfIllumination;
}
else if (mayaObj.hasFn(MFn.Type.kSpotLight))
{
MFnSpotLight mayaLight = new MFnSpotLight(mayaObj);
light.type = MayaLight.Type.kSpot;
light.color = new Color(mayaLight.color.r, mayaLight.color.g, mayaLight.color.b, mayaLight.color.a);
light.intensity = mayaLight.intensity;
light.range = (float)mayaLight.centerOfIllumination;
float mayaConeAngle = (float)(mayaLight.coneAngle * 0.5);
light.coneInnerAngle = 57.29578f * mayaConeAngle;
light.coneOuterAngle = 57.29578f * (mayaConeAngle + Math.Abs((float)mayaLight.penumbraAngle));
}
it.next();
}
}
