private IMatrix3 GetInvertWorldTM(IIGameNode gameNode, int key)
{
var worldMatrix = gameNode.GetWorldTM(key);
var invertedWorldMatrix = worldMatrix.ExtractMatrix3();
invertedWorldMatrix.Invert();
return(invertedWorldMatrix);
}
public static DualQuaternion GetBoneWorldDQ(IINode _node, int _frame)
{
IInterval interval = maxGlobal.Interval.Create();
interval.SetInfinite();
IIGameNode GNode = maxGlobal.IGameInterface.GetIGameNode(_node);
int _ticks_per_frame = maxGlobal.TicksPerFrame;
IGMatrix _node_Gmatrix = GNode.GetWorldTM(_frame * _ticks_per_frame);
DualQuaternion DQ = _node_Gmatrix.convertToDQ();
return(DQ);
}
private BabylonNode ExportLight(IIGameScene scene, IIGameNode lightNode, BabylonScene babylonScene)
{
if (IsLightExportable(lightNode) == false)
{
return(null);
}
var gameLight = lightNode.IGameObject.AsGameLight();
var initialized = gameLight.InitializeData;
var babylonLight = new BabylonLight();
RaiseMessage(lightNode.Name, 1);
babylonLight.name = lightNode.Name;
// Export the custom attributes of this light
babylonLight.metadata = ExportExtraAttributes(lightNode, babylonScene);
// To preserve the position/rotation and the hierarchy, we create a dummy that will contains as direct children the light and the light children
// The light will have no children. The dummy will contains the position and rotation animations.
bool createDummy = lightNode.ChildCount > 0;
BabylonNode dummy = null;
if (createDummy)
{
dummy = ExportDummy(scene, lightNode, babylonScene);
dummy.name = "_" + dummy.name + "_";
babylonLight.id = Guid.NewGuid().ToString();
babylonLight.parentId = dummy.id;
babylonLight.hasDummy = true;
}
else
{
babylonLight.id = lightNode.MaxNode.GetGuid().ToString();
if (lightNode.NodeParent != null)
{
babylonLight.parentId = lightNode.NodeParent.MaxNode.GetGuid().ToString();
}
}
// Type
var maxLight = (lightNode.MaxNode.ObjectRef as ILightObject);
var lightState = Loader.Global.LightState.Create();
maxLight.EvalLightState(0, Tools.Forever, lightState);
switch (lightState.Type)
{
case LightType.OmniLgt:
babylonLight.type = 0;
break;
case LightType.SpotLgt:
babylonLight.type = 2;
babylonLight.angle = (float)(maxLight.GetFallsize(0, Tools.Forever) * Math.PI / 180.0f);
babylonLight.exponent = 1;
break;
case LightType.DirectLgt:
babylonLight.type = 1;
break;
case LightType.AmbientLgt:
babylonLight.type = 3;
babylonLight.groundColor = new float[] { 0, 0, 0 };
break;
}
// Shadows
if (maxLight.ShadowMethod == 1)
{
if (lightState.Type == LightType.DirectLgt || lightState.Type == LightType.SpotLgt || lightState.Type == LightType.OmniLgt)
{
ExportShadowGenerator(lightNode.MaxNode, babylonScene, babylonLight);
}
else
{
RaiseWarning("Shadows maps are only supported for point, directional and spot lights", 2);
}
}
// Position / rotation / scaling
if (createDummy)
{
// The position is stored by the dummy parent and the default direction is downward and it is updated by the rotation of the parent dummy
babylonLight.position = new[] { 0f, 0f, 0f };
babylonLight.direction = new[] { 0f, -1f, 0f };
}
else
{
exportTransform(babylonLight, lightNode);
// Position
var localMatrix = lightNode.GetLocalTM(0);
var position = localMatrix.Translation;
// Direction
var target = gameLight.LightTarget;
if (target != null)
{
var targetWm = target.GetObjectTM(0);
var targetPosition = targetWm.Translation;
var direction = targetPosition.Subtract(position).Normalize;
babylonLight.direction = new[] { direction.X, direction.Y, direction.Z };
}
else
{
var vDir = Loader.Global.Point3.Create(0, -1, 0);
vDir = localMatrix.ExtractMatrix3().VectorTransform(vDir).Normalize;
babylonLight.direction = new[] { vDir.X, vDir.Y, vDir.Z };
}
}
// The HemisphericLight simulates the ambient environment light, so the passed direction is the light reflection direction, not the incoming direction.
// So we need the opposite direction
if (babylonLight.type == 3)
{
var worldRotation = lightNode.GetWorldTM(0).Rotation;
BabylonQuaternion quaternion = new BabylonQuaternion(worldRotation.X, worldRotation.Y, worldRotation.Z, worldRotation.W);
babylonLight.direction = quaternion.Rotate(new BabylonVector3(0f, 1f, 0f)).ToArray();
}
var maxScene = Loader.Core.RootNode;
// Exclusion
try
{
var inclusion = maxLight.ExclList.TestFlag(1); //NT_INCLUDE
var checkExclusionList = maxLight.ExclList.TestFlag(2); //NT_AFFECT_ILLUM
if (checkExclusionList)
{
var excllist = new List <string>();
var incllist = new List <string>();
foreach (var meshNode in maxScene.NodesListBySuperClass(SClass_ID.Geomobject))
{
#if MAX2017 || MAX2018 || MAX2019 || MAX2020
if (meshNode.CastShadows)
#else
if (meshNode.CastShadows == 1)
#endif
{
var inList = maxLight.ExclList.FindNode(meshNode) != -1;
if (inList)
{
if (inclusion)
{
incllist.Add(meshNode.GetGuid().ToString());
}
else
{
excllist.Add(meshNode.GetGuid().ToString());
}
}
}
}
babylonLight.includedOnlyMeshesIds = incllist.ToArray();
babylonLight.excludedMeshesIds = excllist.ToArray();
}
}
catch (Exception e)
{
RaiseMessage("Light exclusion not supported", 2);
}
// Other fields
babylonLight.intensity = maxLight.GetIntensity(0, Tools.Forever);
babylonLight.diffuse = lightState.AffectDiffuse ? maxLight.GetRGBColor(0, Tools.Forever).ToArray() : new float[] { 0, 0, 0 };
babylonLight.specular = lightState.AffectDiffuse ? maxLight.GetRGBColor(0, Tools.Forever).ToArray() : new float[] { 0, 0, 0 };
if (maxLight.UseAtten)
{
babylonLight.range = maxLight.GetAtten(0, 3, Tools.Forever);
}
if (exportParameters.exportAnimations)
{
// Animations
var animations = new List <BabylonAnimation>();
if (createDummy)
{
// Position and rotation animations are stored by the parent (the dummy). The direction result from the parent rotation except for the HemisphericLight.
if (babylonLight.type == 3)
{
BabylonVector3 direction = new BabylonVector3(0, 1, 0);
ExportVector3Animation("direction", animations, key =>
{
var worldRotation = lightNode.GetWorldTM(key).Rotation;
BabylonQuaternion quaternion = new BabylonQuaternion(worldRotation.X, worldRotation.Y, worldRotation.Z, worldRotation.W);
return(quaternion.Rotate(direction).ToArray());
});
}
}
else
{
GeneratePositionAnimation(lightNode, animations);
ExportVector3Animation("direction", animations, key =>
{
var localMatrixAnimDir = lightNode.GetLocalTM(key);
var positionLight = localMatrixAnimDir.Translation;
var lightTarget = gameLight.LightTarget;
if (lightTarget != null)
{
var targetWm = lightTarget.GetObjectTM(key);
var targetPosition = targetWm.Translation;
var direction = targetPosition.Subtract(positionLight).Normalize;
return(new[] { direction.X, direction.Y, direction.Z });
}
else
{
var vDir = Loader.Global.Point3.Create(0, -1, 0);
vDir = localMatrixAnimDir.ExtractMatrix3().VectorTransform(vDir).Normalize;
// The HemisphericLight (type == 3) simulates the ambient environment light, so the passed direction is the light reflection direction, not the incoming direction.
// So we need the opposite direction
return(babylonLight.type != 3 ? new[] { vDir.X, vDir.Y, vDir.Z } : new[] { -vDir.X, -vDir.Y, -vDir.Z });
}
});
// Animation temporary stored for gltf but not exported for babylon
// TODO - Will cause an issue when externalizing the glTF export process
var extraAnimations = new List <BabylonAnimation>();
// Do not check if node rotation properties are animated
GenerateRotationAnimation(lightNode, extraAnimations, true);
babylonLight.extraAnimations = extraAnimations;
}
ExportFloatAnimation("intensity", animations, key => new[] { maxLight.GetIntensity(key, Tools.Forever) });
ExportColor3Animation("diffuse", animations, key =>
{
return(lightState.AffectDiffuse? maxLight.GetRGBColor(key, Tools.Forever).ToArray() : new float[] { 0, 0, 0 });
});
babylonLight.animations = animations.ToArray();
if (lightNode.MaxNode.GetBoolProperty("babylonjs_autoanimate"))
{
babylonLight.autoAnimate = true;
babylonLight.autoAnimateFrom = (int)lightNode.MaxNode.GetFloatProperty("babylonjs_autoanimate_from");
babylonLight.autoAnimateTo = (int)lightNode.MaxNode.GetFloatProperty("babylonjs_autoanimate_to");
babylonLight.autoAnimateLoop = lightNode.MaxNode.GetBoolProperty("babylonjs_autoanimateloop");
}
}
babylonScene.LightsList.Add(babylonLight);
return(createDummy ? dummy : babylonLight);
}