private void exportNodeRec(BabylonNode babylonNode, GLTF gltf, BabylonScene babylonScene, GLTFNode gltfParentNode = null)
{
GLTFNode gltfNode = ExportNode(babylonNode, gltf, babylonScene, gltfParentNode);
if (gltfNode != null)
{
var type = babylonNode.GetType();
if (type == typeof(BabylonAbstractMesh) || type.IsSubclassOf(typeof(BabylonAbstractMesh)))
{
gltfNode = ExportAbstractMesh(ref gltfNode, babylonNode as BabylonAbstractMesh, gltf, gltfParentNode, babylonScene);
}
else if (type == typeof(BabylonCamera))
{
GLTFCamera gltfCamera = ExportCamera(ref gltfNode, babylonNode as BabylonCamera, gltf, gltfParentNode);
}
else
{
RaiseError($"Node named {babylonNode.name} as no exporter", 1);
}
CheckCancelled();
// ...export its children
List <BabylonNode> babylonDescendants = getDescendants(babylonNode);
babylonDescendants.ForEach(descendant => exportNodeRec(descendant, gltf, babylonScene, gltfNode));
}
}
public object ExportGLTFExtension <T1, T2>(T1 babylonObject, ref T2 gltfObject, ref GLTF gltf, GLTFExporter exporter, ExtensionInfo info)
{
var babylonCamera = babylonObject as BabylonCamera;
var gltfAnimation = gltfObject as GLTFAnimation;
AnimationExtensionInfo animationExtensionInfo = info as AnimationExtensionInfo;
if (babylonCamera == null)
{
return(null);
}
Guid guid = Guid.Empty;
Guid.TryParse(babylonCamera.id, out guid);
IINode camNode = Tools.GetINodeByGuid(guid);
var maxCamera = CameraUtilities.GetGenCameraFromNode(camNode, exporter.logger);
if (maxCamera == null)
{
exporter.logger.RaiseError($"Impossible to export {FlightSimAsoboPropertyAnimationExtension.SerializedName} for {camNode.Name}, camera node must be a TargetCamera type");
return(null);
}
if (babylonCamera != null && gltfAnimation != null && FlightSimCameraUtilities.class_ID.Equals(new MaterialUtilities.ClassIDWrapper(maxCamera.ClassID)))
{
GLTFNode gltfNode = null;
GLTFCamera gltfCamera = null;
if (!exporter.nodeToGltfNodeMap.TryGetValue(babylonCamera, out gltfNode))
{
return(gltfObject);
}
if (gltfNode != null && gltfNode.camera >= 0)
{
gltfCamera = gltf.CamerasList[gltfNode.camera.GetValueOrDefault()];
}
int samplerIndex = AddParameterSamplerAnimation(babylonCamera, gltfAnimation, exporter, gltf, animationExtensionInfo.startFrame, animationExtensionInfo.endFrame);
if (samplerIndex > -1)
{
GLTFExtensionAsoboPropertyAnimation gltfExtension = new GLTFExtensionAsoboPropertyAnimation();
List <GLTFAnimationPropertyChannel> animationPropertyChannels = new List <GLTFAnimationPropertyChannel>();
//TODO: for each animated property in the camera
//TODO: this should be generated based on the property itself
GLTFAnimationPropertyChannel propertyChannel = new GLTFAnimationPropertyChannel();
propertyChannel.sampler = samplerIndex;
propertyChannel.target = $"cameras/{gltfCamera.index}/perspective/yfov";
animationPropertyChannels.Add(propertyChannel);
gltfExtension.channels = animationPropertyChannels.ToArray();
return(gltfExtension);
}
}
return(null);
}
private void exportNodeRec(BabylonNode babylonNode, GLTF gltf, BabylonScene babylonScene, GLTFNode gltfParentNode = null)
{
var type = babylonNode.GetType();
// Ambiant light are attached to the scene
if (type == typeof(BabylonLight) && ((BabylonLight)babylonNode).type == 3)
{
RaiseMessage($"GLTFExporter.Light | Export light named: {babylonNode.name}", 1);
// new light in the scene extensions
GLTFLight light = new GLTFLight
{
light = AddLightExtension(ref gltf, babylonNode as BabylonLight)
};
int sceneIndex = (int)gltf.scene;
if (gltf.scenes[sceneIndex].extensions.ContainsKey(KHR_lights))
{
RaiseWarning($"Only 1 ambient light can be referenced per scene. {babylonNode.name} has overwritten the previous one.", 2);
}
gltf.scenes[sceneIndex].extensions[KHR_lights] = light;
return;
}
GLTFNode gltfNode = ExportNode(babylonNode, gltf, babylonScene, gltfParentNode);
if (gltfNode != null)
{
if (type == typeof(BabylonAbstractMesh) || type.IsSubclassOf(typeof(BabylonAbstractMesh)))
{
gltfNode = ExportAbstractMesh(ref gltfNode, babylonNode as BabylonAbstractMesh, gltf, gltfParentNode, babylonScene);
}
else if (type == typeof(BabylonCamera))
{
GLTFCamera gltfCamera = ExportCamera(ref gltfNode, babylonNode as BabylonCamera, gltf, gltfParentNode);
}
else if (type == typeof(BabylonLight) || type.IsSubclassOf(typeof(BabylonLight)))
{
ExportLight(ref gltfNode, babylonNode as BabylonLight, gltf, gltfParentNode, babylonScene);
}
else
{
RaiseError($"Node named {babylonNode.name} as no exporter", 1);
}
CheckCancelled();
// ...export its children
List <BabylonNode> babylonDescendants = getDescendants(babylonNode);
babylonDescendants.ForEach(descendant => exportNodeRec(descendant, gltf, babylonScene, gltfNode));
}
}
private void exportNodeRec(BabylonNode babylonNode, GLTF gltf, BabylonScene babylonScene, GLTFNode gltfParentNode = null)
{
var type = babylonNode.GetType();
GLTFNode gltfNode = ExportNode(babylonNode, gltf, babylonScene, gltfParentNode);
if (gltfNode != null)
{
if (type == typeof(BabylonAbstractMesh) || type.IsSubclassOf(typeof(BabylonAbstractMesh)))
{
gltfNode = ExportAbstractMesh(ref gltfNode, babylonNode as BabylonAbstractMesh, gltf, gltfParentNode, babylonScene);
}
else if (type == typeof(BabylonCamera))
{
GLTFCamera gltfCamera = ExportCamera(ref gltfNode, babylonNode as BabylonCamera, gltf, gltfParentNode);
}
else if (type == typeof(BabylonLight) || type.IsSubclassOf(typeof(BabylonLight)))
{
if (((BabylonLight)babylonNode).type != 3)
{
ExportLight(ref gltfNode, babylonNode as BabylonLight, gltf, gltfParentNode, babylonScene);
}
}
else
{
RaiseError($"Node named {babylonNode.name} as no exporter", 1);
}
CheckCancelled();
// export its tag
if (babylonNode.tags != null && babylonNode.tags != "")
{
if (gltfNode.extras == null)
{
gltfNode.extras = new Dictionary <string, object>();
}
gltfNode.extras["tags"] = babylonNode.tags;
}
// ...export its children
List <BabylonNode> babylonDescendants = getDescendants(babylonNode);
babylonDescendants.ForEach(descendant => exportNodeRec(descendant, gltf, babylonScene, gltfNode));
}
}
private void exportNodeRec(BabylonNode babylonNode, GLTF gltf, BabylonScene babylonScene, GLTFNode gltfParentNode = null)
{
GLTFNode gltfNode = null;
var type = babylonNode.GetType();
if (type == typeof(BabylonAbstractMesh) ||
type.IsSubclassOf(typeof(BabylonAbstractMesh)))
{
gltfNode = ExportAbstractMesh(babylonNode as BabylonAbstractMesh, gltf, gltfParentNode, babylonScene);
}
else if (type == typeof(BabylonCamera))
{
GLTFCamera gltfCamera = ExportCamera(babylonNode as BabylonCamera, gltf, gltfParentNode);
gltfNode = gltfCamera.gltfNode;
}
else if (type == typeof(BabylonLight))
{
if (isNodeRelevantToExport(babylonNode))
{
// Export light nodes as empty nodes (no lights in glTF 2.0 core)
RaiseWarning($"GLTFExporter | Light named {babylonNode.name} has children but lights are not exported with glTF 2.0 core version. An empty node is used instead.", 1);
gltfNode = ExportLight(babylonNode as BabylonLight, gltf, gltfParentNode);
}
else
{
RaiseMessage($"GLTFExporter | Light named {babylonNode.name} is not relevant to export", 1);
}
}
else
{
RaiseError($"Node named {babylonNode.name} as no exporter", 1);
}
CheckCancelled();
// If node is exported successfully...
if (gltfNode != null)
{
// ...export its children
List <BabylonNode> babylonDescendants = getDescendants(babylonNode);
babylonDescendants.ForEach(descendant => exportNodeRec(descendant, gltf, babylonScene, gltfNode));
}
}
private void exportNodeTypeRec(BabylonNode babylonNode, GLTF gltf, BabylonScene babylonScene, GLTFNode gltfParentNode = null)
{
var type = babylonNode.GetType();
logger.RaiseMessage($"GLTFExporter | ExportNode {babylonNode.name} of Type {type.ToString()}", 1);
var nodeNodePair = nodeToGltfNodeMap.FirstOrDefault(pair => pair.Key.id.Equals(babylonNode.id));
GLTFNode gltfNode = nodeNodePair.Value;
if (gltfNode != null)
{
if (type == typeof(BabylonAbstractMesh) || type.IsSubclassOf(typeof(BabylonAbstractMesh)))
{
gltfNode = ExportAbstractMesh(ref gltfNode, babylonNode as BabylonAbstractMesh, gltf, gltfParentNode, babylonScene);
}
else if (type == typeof(BabylonCamera))
{
GLTFCamera gltfCamera = ExportCamera(ref gltfNode, babylonNode as BabylonCamera, gltf, gltfParentNode);
}
else if (type == typeof(BabylonLight) || type.IsSubclassOf(typeof(BabylonLight)))
{
if (((BabylonLight)babylonNode).type != 3)
{
ExportLight(ref gltfNode, babylonNode as BabylonLight, gltf, gltfParentNode, babylonScene);
}
}
else if (type == typeof(BabylonNode))
{
logger.RaiseVerbose($"Node named {babylonNode.name} already exported as gltfNode", 1);
}
else
{
logger.RaiseError($"Node named {babylonNode.name} has no exporter", 1);
}
logger.CheckCancelled();
// ...export its children
List <BabylonNode> babylonDescendants = getDescendants(babylonNode);
babylonDescendants.ForEach(descendant => exportNodeTypeRec(descendant, gltf, babylonScene, gltfNode));
}
}
private GLTFCamera ExportCamera(ref GLTFNode gltfNode, BabylonCamera babylonCamera, GLTF gltf, GLTFNode gltfParentNode)
{
logger.RaiseMessage("GLTFExporter.Camera | Export camera named: " + babylonCamera.name, 2);
// --- prints ---
#region prints
logger.RaiseVerbose("GLTFExporter.Camera | babylonCamera data", 3);
logger.RaiseVerbose("GLTFExporter.Camera | babylonCamera.type=" + babylonCamera.type, 4);
logger.RaiseVerbose("GLTFExporter.Camera | babylonCamera.fov=" + babylonCamera.fov, 4);
logger.RaiseVerbose("GLTFExporter.Camera | babylonCamera.maxZ=" + babylonCamera.maxZ, 4);
logger.RaiseVerbose("GLTFExporter.Camera | babylonCamera.minZ=" + babylonCamera.minZ, 4);
#endregion
// --------------------------
// ------- gltfCamera -------
// --------------------------
logger.RaiseMessage("GLTFExporter.Camera | create gltfCamera", 3);
// Camera
var gltfCamera = new GLTFCamera {
name = babylonCamera.name
};
gltfCamera.index = gltf.CamerasList.Count;
gltf.CamerasList.Add(gltfCamera);
gltfNode.camera = gltfCamera.index;
gltfCamera.gltfNode = gltfNode;
// Camera type
switch (babylonCamera.mode)
{
case (BabylonCamera.CameraMode.ORTHOGRAPHIC_CAMERA):
var gltfCameraOrthographic = new GLTFCameraOrthographic();
gltfCameraOrthographic.xmag = 1; // Do not bother about it - still mandatory
gltfCameraOrthographic.ymag = 1; // Do not bother about it - still mandatory
gltfCameraOrthographic.zfar = babylonCamera.maxZ;
gltfCameraOrthographic.znear = babylonCamera.minZ;
gltfCamera.type = GLTFCamera.CameraType.orthographic.ToString();
gltfCamera.orthographic = gltfCameraOrthographic;
break;
case (BabylonCamera.CameraMode.PERSPECTIVE_CAMERA):
var gltfCameraPerspective = new GLTFCameraPerspective();
gltfCameraPerspective.aspectRatio = null; // Do not bother about it - use default glTF value
gltfCameraPerspective.yfov = babylonCamera.fov; // Babylon camera fov mode is assumed to be vertical (FOVMODE_VERTICAL_FIXED)
gltfCameraPerspective.zfar = babylonCamera.maxZ;
gltfCameraPerspective.znear = babylonCamera.minZ;
gltfCamera.type = GLTFCamera.CameraType.perspective.ToString();
gltfCamera.perspective = gltfCameraPerspective;
break;
default:
logger.RaiseError("GLTFExporter.Camera | camera mode not found");
break;
}
ExportGLTFExtension(babylonCamera, ref gltfCamera, gltf);
return(gltfCamera);
}
private GLTFCamera ExportCamera(BabylonCamera babylonCamera, GLTF gltf, GLTFNode gltfParentNode)
{
RaiseMessage("GLTFExporter.Camera | Export camera named: " + babylonCamera.name, 1);
// --------------------------
// ---------- Node ----------
// --------------------------
RaiseMessage("GLTFExporter.Camera | Node", 2);
// Node
var gltfNode = new GLTFNode();
gltfNode.name = GetUniqueNodeName(babylonCamera.name);
gltfNode.index = gltf.NodesList.Count;
gltf.NodesList.Add(gltfNode);
// Hierarchy
if (gltfParentNode != null)
{
RaiseMessage("GLTFExporter.Camera | Add " + babylonCamera.name + " as child to " + gltfParentNode.name, 3);
gltfParentNode.ChildrenList.Add(gltfNode.index);
gltfNode.parent = gltfParentNode;
}
else
{
// It's a root node
// Only root nodes are listed in a gltf scene
RaiseMessage("GLTFExporter.Camera | Add " + babylonCamera.name + " as root node to scene", 3);
gltf.scenes[0].NodesList.Add(gltfNode.index);
}
// Transform
gltfNode.translation = babylonCamera.position;
if (babylonCamera.rotationQuaternion != null)
{
gltfNode.rotation = babylonCamera.rotationQuaternion;
}
else
{
// Convert rotation vector to quaternion
BabylonVector3 rotationVector3 = new BabylonVector3
{
X = babylonCamera.rotation[0],
Y = babylonCamera.rotation[1],
Z = babylonCamera.rotation[2]
};
gltfNode.rotation = rotationVector3.toQuaternion().ToArray();
}
// No scaling defined for babylon camera. Use identity instead.
gltfNode.scale = new float[3] {
1, 1, 1
};
// Switch coordinate system at object level
gltfNode.translation[2] *= -1;
gltfNode.rotation[0] *= -1;
gltfNode.rotation[1] *= -1;
// Animations
ExportNodeAnimation(babylonCamera, gltf, gltfNode);
// --- prints ---
#region prints
RaiseVerbose("GLTFExporter.Camera | babylonCamera data", 2);
RaiseVerbose("GLTFExporter.Camera | babylonCamera.type=" + babylonCamera.type, 3);
RaiseVerbose("GLTFExporter.Camera | babylonCamera.fov=" + babylonCamera.fov, 3);
RaiseVerbose("GLTFExporter.Camera | babylonCamera.maxZ=" + babylonCamera.maxZ, 3);
RaiseVerbose("GLTFExporter.Camera | babylonCamera.minZ=" + babylonCamera.minZ, 3);
#endregion
// --------------------------
// ------- gltfCamera -------
// --------------------------
RaiseMessage("GLTFExporter.Camera | create gltfCamera", 2);
// Camera
var gltfCamera = new GLTFCamera {
name = babylonCamera.name
};
gltfCamera.index = gltf.CamerasList.Count;
gltf.CamerasList.Add(gltfCamera);
gltfNode.camera = gltfCamera.index;
gltfCamera.gltfNode = gltfNode;
// Camera type
switch (babylonCamera.mode)
{
case (BabylonCamera.CameraMode.ORTHOGRAPHIC_CAMERA):
var gltfCameraOrthographic = new GLTFCameraOrthographic();
gltfCameraOrthographic.xmag = 1; // Do not bother about it - still mandatory
gltfCameraOrthographic.ymag = 1; // Do not bother about it - still mandatory
gltfCameraOrthographic.zfar = babylonCamera.maxZ;
gltfCameraOrthographic.znear = babylonCamera.minZ;
gltfCamera.type = GLTFCamera.CameraType.orthographic.ToString();
gltfCamera.orthographic = gltfCameraOrthographic;
break;
case (BabylonCamera.CameraMode.PERSPECTIVE_CAMERA):
var gltfCameraPerspective = new GLTFCameraPerspective();
gltfCameraPerspective.aspectRatio = null; // Do not bother about it - use default glTF value
gltfCameraPerspective.yfov = babylonCamera.fov; // Babylon camera fov mode is assumed to be vertical (FOVMODE_VERTICAL_FIXED)
gltfCameraPerspective.zfar = babylonCamera.maxZ;
gltfCameraPerspective.znear = babylonCamera.minZ;
gltfCamera.type = GLTFCamera.CameraType.perspective.ToString();
gltfCamera.perspective = gltfCameraPerspective;
break;
default:
RaiseError("GLTFExporter.Camera | camera mode not found");
break;
}
return(gltfCamera);
}
// TODO - Test if ok with a gltf viewer working with custom camera (babylon loader/sandbox doesn't load them)
private GLTFCamera ExportCamera(BabylonCamera babylonCamera, GLTF gltf, GLTFNode gltfParentNode)
{
RaiseMessage("GLTFExporter.Camera | Export camera named: " + babylonCamera.name, 1);
// --------------------------
// ---------- Node ----------
// --------------------------
RaiseMessage("GLTFExporter.Camera | Node", 2);
// Node
var gltfNode = new GLTFNode();
gltfNode.name = babylonCamera.name;
gltfNode.index = gltf.NodesList.Count;
gltf.NodesList.Add(gltfNode);
// Hierarchy
if (gltfParentNode != null)
{
RaiseMessage("GLTFExporter.Camera | Add " + babylonCamera.name + " as child to " + gltfParentNode.name, 3);
gltfParentNode.ChildrenList.Add(gltfNode.index);
}
else
{
// It's a root node
// Only root nodes are listed in a gltf scene
RaiseMessage("GLTFExporter.Camera | Add " + babylonCamera.name + " as root node to scene", 3);
gltf.scenes[0].NodesList.Add(gltfNode.index);
}
// Transform
gltfNode.translation = babylonCamera.position;
// Switch from left to right handed coordinate system
//gltfNode.translation[0] *= -1;
if (babylonCamera.rotationQuaternion != null)
{
gltfNode.rotation = babylonCamera.rotationQuaternion;
}
else
{
// Convert rotation vector to quaternion
BabylonVector3 rotationVector3 = new BabylonVector3
{
X = babylonCamera.rotation[0],
Y = babylonCamera.rotation[1],
Z = babylonCamera.rotation[2]
};
gltfNode.rotation = rotationVector3.toQuaternionGltf().ToArray();
}
// No scaling defined for babylon camera. Use identity instead.
gltfNode.scale = new float[3] {
1, 1, 1
};
// --- prints ---
RaiseMessage("GLTFExporter.Camera | babylonCamera data", 2);
RaiseMessage("GLTFExporter.Camera | babylonCamera.type=" + babylonCamera.type, 3);
RaiseMessage("GLTFExporter.Camera | babylonCamera.fov=" + babylonCamera.fov, 3);
RaiseMessage("GLTFExporter.Camera | babylonCamera.maxZ=" + babylonCamera.maxZ, 3);
RaiseMessage("GLTFExporter.Camera | babylonCamera.minZ=" + babylonCamera.minZ, 3);
// --------------------------
// ------- gltfCamera -------
// --------------------------
RaiseMessage("GLTFExporter.Camera | create gltfCamera", 2);
// Camera
var gltfCamera = new GLTFCamera {
name = babylonCamera.name
};
gltfCamera.index = gltf.CamerasList.Count;
gltf.CamerasList.Add(gltfCamera);
gltfNode.camera = gltfCamera.index;
gltfCamera.gltfNode = gltfNode;
// Camera type
switch (babylonCamera.mode)
{
case (BabylonCamera.CameraMode.ORTHOGRAPHIC_CAMERA):
var gltfCameraOrthographic = new GLTFCameraOrthographic();
gltfCameraOrthographic.xmag = 1; // TODO - How to retreive value from babylon? xmag:The floating-point horizontal magnification of the view
gltfCameraOrthographic.ymag = 1; // TODO - How to retreive value from babylon? ymag:The floating-point vertical magnification of the view
gltfCameraOrthographic.zfar = babylonCamera.maxZ;
gltfCameraOrthographic.znear = babylonCamera.minZ;
gltfCamera.type = GLTFCamera.CameraType.orthographic.ToString();
gltfCamera.orthographic = gltfCameraOrthographic;
break;
case (BabylonCamera.CameraMode.PERSPECTIVE_CAMERA):
var gltfCameraPerspective = new GLTFCameraPerspective();
gltfCameraPerspective.aspectRatio = null; // 0.8f; // TODO - How to retreive value from babylon? The aspect ratio in babylon is computed based on the engine rather than set on a camera (aspectRatio = _gl.drawingBufferWidth / _gl.drawingBufferHeight)
gltfCameraPerspective.yfov = babylonCamera.fov; // WARNING - Babylon camera fov mode is assumed to be vertical (FOVMODE_VERTICAL_FIXED)
gltfCameraPerspective.zfar = babylonCamera.maxZ;
gltfCameraPerspective.znear = babylonCamera.minZ;
gltfCamera.type = GLTFCamera.CameraType.perspective.ToString();
gltfCamera.perspective = gltfCameraPerspective;
break;
default:
RaiseError("GLTFExporter.Camera | camera mode not found");
break;
}
return(gltfCamera);
}
