/// <summary>
/// Serializes the combined faces and returns a mesh
/// </summary>
private Tuple <string, Mesh, List <MeshInstance> > SerializeCombinedFaces(
string parent, PrimDisplayData data,
string materialType, string tempPath, BabylonFlatBufferOutputs outputs,
ExportStats stats)
{
stats.PrimCount++;
BabylonPrimFaceCombiner combiner = new BabylonPrimFaceCombiner();
foreach (var face in data.Mesh.Faces)
{
combiner.CombineFace(face);
}
combiner.Complete();
List <string> materialsList = new List <string>();
for (int i = 0; i < combiner.Materials.Count; i++)
{
var material = combiner.Materials[i];
float shinyPercent = ShinyToPercent(material.Shiny);
bool hasTexture = material.TextureID != OpenMetaverse.UUID.Zero;
//check the material tracker, if we already have this texture, don't export it again
TrackedTexture trackedTexture = null;
if (hasTexture)
{
if (outputs.Textures.ContainsKey(material.TextureID))
{
trackedTexture = outputs.Textures[material.TextureID];
}
else
{
string materialMapName = $"tex_mat_{material.TextureID}.{materialType}";
var kvp = this.WriteMaterialTexture(material.TextureID, materialMapName, tempPath, outputs.TextureFiles);
outputs.Textures.Add(kvp.Key, kvp.Value);
trackedTexture = kvp.Value;
}
}
var matHash = _objHasher.GetMaterialFaceHash(material);
if (!outputs.Materials.ContainsKey(matHash))
{
bool hasTransparent = material.RGBA.A < 1.0f || (trackedTexture != null && trackedTexture.HasAlpha);
Texture texture = null;
if (hasTexture)
{
texture = new Texture()
{
HasAlpha = hasTransparent,
Name = trackedTexture.Name
};
}
BabylonFlatBufferIntermediates.Material jsMaterial = new BabylonFlatBufferIntermediates.Material()
{
Alpha = material.RGBA.A,
Color = new[] { material.RGBA.R, material.RGBA.G, material.RGBA.B },
DiffuseTexture = hasTexture ? texture : null,
Id = matHash.ToString(),
Name = matHash.ToString(),
ShinyPercent = shinyPercent
};
outputs.Materials.Add(matHash, jsMaterial);
}
materialsList.Add(matHash.ToString());
}
var multiMaterialName = data.MaterialHash + "_mm";
if (!outputs.MultiMaterials.ContainsKey(data.MaterialHash))
{
//create the multimaterial
var multiMaterial = new MultiMaterial()
{
Id = multiMaterialName,
MaterialsList = materialsList,
Name = multiMaterialName
};
outputs.MultiMaterials[data.MaterialHash] = multiMaterial;
}
List <SubMesh> submeshes = new List <SubMesh>();
foreach (var subMesh in combiner.SubMeshes)
{
submeshes.Add(new SubMesh()
{
MaterialIndex = subMesh.MaterialIndex,
VerticesStart = subMesh.VerticesStart,
VerticesCount = subMesh.VerticesCount,
IndexStart = subMesh.IndexStart,
IndexCount = subMesh.IndexCount
});
stats.SubmeshCount++;
}
List <MeshInstance> instanceList = null;
if (parent == null)
{
instanceList = new List <MeshInstance>();
}
//if this is a child prim, divide out the scale of the parent
var scale = data.Scale;
if (parent != null)
{
scale /= data.Parent.Scale;
}
Vector3 pos = data.OffsetPosition;
Quaternion rot = data.OffsetRotation;
if (parent == null)
{
FixCoordinateSystem(ref pos, ref rot);
}
var primId = data.ShapeHash + "_" + data.MaterialHash + (parent == null ? "_P" : "");
Mesh mesh = new Mesh()
{
Name = primId,
Id = primId,
ParentId = parent,
MaterialId = multiMaterialName,
Position = new [] { pos.X, pos.Y, pos.Z },
RotationQuaternion = new[] { rot.X, rot.Y, rot.Z, rot.W },
Scaling = new[] { scale.X, scale.Y, scale.Z },
Positions = combiner.Vertices,
Normals = combiner.Normals,
UVs = combiner.UVs,
Indices = combiner.Indices,
Submeshes = submeshes,
Instances = instanceList
};
return(new Tuple <string, Mesh, List <MeshInstance> >(primId, mesh, instanceList));
}
/// <summary>
/// Serializes the combined faces and returns a mesh
/// </summary>
private Tuple <string, object, List <object> > SerializeCombinedFaces(
string parent, PrimDisplayData data,
string materialType, string tempPath, BabylonOutputs outputs,
ExportStats stats)
{
stats.PrimCount++;
BabylonPrimFaceCombiner combiner = new BabylonPrimFaceCombiner();
foreach (var face in data.Mesh.Faces)
{
combiner.CombineFace(face);
}
combiner.Complete();
List <string> materialsList = new List <string>();
for (int i = 0; i < combiner.Materials.Count; i++)
{
var material = combiner.Materials[i];
float shinyPercent = ShinyToPercent(material.Shiny);
bool hasTexture = material.TextureID != OpenMetaverse.UUID.Zero;
//check the material tracker, if we already have this texture, don't export it again
TrackedTexture trackedTexture = null;
if (hasTexture)
{
if (outputs.Textures.ContainsKey(material.TextureID))
{
trackedTexture = outputs.Textures[material.TextureID];
}
else
{
string materialMapName = $"tex_mat_{material.TextureID}.{materialType}";
var kvp = this.WriteMaterialTexture(material.TextureID, materialMapName, tempPath, outputs.TextureFiles);
outputs.Textures.Add(kvp.Key, kvp.Value);
trackedTexture = kvp.Value;
}
}
var matHash = _objHasher.GetMaterialFaceHash(material);
if (!outputs.Materials.ContainsKey(matHash))
{
bool hasTransparent = material.RGBA.A < 1.0f || (trackedTexture != null && trackedTexture.HasAlpha);
object texture = null;
if (hasTexture)
{
texture = new
{
name = trackedTexture.Name,
level = 1,
hasAlpha = hasTransparent,
getAlphaFromRGB = false,
coordinatesMode = 0,
uOffset = 0,
vOffset = 0,
uScale = 1,
vScale = 1,
uAng = 0,
vAng = 0,
wAng = 0,
wrapU = true,
wrapV = true,
coordinatesIndex = 0
};
}
var jsMaterial = new
{
name = matHash.ToString(),
id = matHash.ToString(),
ambient = new[] { material.RGBA.R, material.RGBA.G, material.RGBA.B },
diffuse = new[] { material.RGBA.R, material.RGBA.G, material.RGBA.B },
specular = new[] { material.RGBA.R *shinyPercent, material.RGBA.G *shinyPercent, material.RGBA.B *shinyPercent },
specularPower = 50,
emissive = new[] { 0.01f, 0.01f, 0.01f },
alpha = material.RGBA.A,
backFaceCulling = true,
wireframe = false,
diffuseTexture = hasTexture ? texture : null,
useLightmapAsShadowmap = false,
checkReadOnlyOnce = true
};
outputs.Materials.Add(matHash, jsMaterial);
}
materialsList.Add(matHash.ToString());
}
var multiMaterialName = data.MaterialHash + "_mm";
if (!outputs.MultiMaterials.ContainsKey(data.MaterialHash))
{
//create the multimaterial
var multiMaterial = new
{
name = multiMaterialName,
id = multiMaterialName,
materials = materialsList
};
outputs.MultiMaterials[data.MaterialHash] = multiMaterial;
}
//finally serialize the mesh
float[] identity4x4 =
{
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f
};
List <object> submeshes = new List <object>();
foreach (var subMesh in combiner.SubMeshes)
{
submeshes.Add(new
{
materialIndex = subMesh.MaterialIndex,
verticesStart = subMesh.VerticesStart,
verticesCount = subMesh.VerticesCount,
indexStart = subMesh.IndexStart,
indexCount = subMesh.IndexCount
});
stats.SubmeshCount++;
}
List <object> instanceList = null;
if (parent == null)
{
instanceList = new List <object>();
}
//if this is a child prim, decouple its coordinate system from the parent
//it seems like babylon loads the object, and then applies the parentage
//after the object is already in world
/*if (parent != null)
* {
* Quaternion parentRot = data.Parent.OffsetRotation;
*
* Vector3 axPos = data.OffsetPosition;
* axPos *= parentRot;
* Vector3 translationOffsetPosition = axPos;
*
* pos = data.Parent.OffsetPosition + translationOffsetPosition;
* rot = data.Parent.OffsetRotation * data.OffsetRotation;
* }*/
//if this is a child prim, divide out the scale of the parent
var scale = data.Scale;
if (parent != null)
{
scale /= data.Parent.Scale;
}
Vector3 pos = data.OffsetPosition;
Quaternion rot = data.OffsetRotation;
if (parent == null)
{
FixCoordinateSystem(ref pos, ref rot);
}
var primId = data.ShapeHash + "_" + data.MaterialHash + (parent == null ? "_P" : "");
var mesh = new
{
name = primId,
id = primId,
parentId = parent,
materialId = multiMaterialName,
position = new [] { pos.X, pos.Y, pos.Z },
rotationQuaternion = new[] { rot.X, rot.Y, rot.Z, rot.W },
scaling = new[] { scale.X, scale.Y, scale.Z },
pivotMatrix = identity4x4,
infiniteDistance = false,
showBoundingBox = false,
showSubMeshesBoundingBox = false,
isVisible = true,
isEnabled = true,
pickable = true,
applyFog = false,
checkCollisions = false,
receiveShadows = false,
positions = combiner.Vertices,
normals = combiner.Normals,
uvs = combiner.UVs,
indices = combiner.Indices,
subMeshes = submeshes,
autoAnimate = false,
billboardMode = 0,
instances = instanceList
};
return(new Tuple <string, object, List <object> >(primId, mesh, instanceList));
}