private BufferViewId AddBinaryDataToStreamHelper(GLBObject glbObject, Stream blobToAdd)
{
int previousCount = 0;
if (glbObject.Root.BufferViews != null)
{
previousCount = glbObject.Root.BufferViews.Count;
}
uint previousGLBLength = glbObject.Header.FileLength;
uint previousChunkLength = glbObject.BinaryChunkInfo.Length;
uint bufferSize = GLBBuilder.CalculateAlignment((uint)blobToAdd.Length, 4);
BufferViewId bufferViewId = GLBBuilder.AddBinaryData(glbObject, blobToAdd);
uint headerModifier = previousChunkLength == 0 ? GLTFParser.CHUNK_HEADER_SIZE : 0;
Assert.AreEqual(previousCount + 1, glbObject.Root.BufferViews.Count);
Assert.AreEqual(previousCount, bufferViewId.Id);
Assert.AreEqual(previousGLBLength + bufferSize + headerModifier, glbObject.Header.FileLength);
Assert.AreEqual(previousChunkLength + bufferSize, glbObject.BinaryChunkInfo.Length);
Assert.AreEqual(previousChunkLength + bufferSize, glbObject.Root.Buffers[0].ByteLength);
Assert.AreEqual(glbObject.Header.FileLength, glbObject.Stream.Length);
return(bufferViewId);
}
public void RemoveMiddleDataFromStream()
{
string outPath =
TestAssetPaths.GetOutPath(TestAssetPaths.GLB_BOX_OUT_PATH_TEMPLATE, 3, TestAssetPaths.GLB_EXTENSION);
FileStream glbStream = File.OpenRead(TestAssetPaths.GLB_BOX_PATH);
FileStream glbOutStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
GLBObject glbObject = GLBBuilder.ConstructFromStream(glbStream, glbOutStream);
const uint numBuffersToAdd = 5;
const uint bufferSize = 100;
BufferViewId[] bufferViews = new BufferViewId[numBuffersToAdd];
for (int i = 0; i < numBuffersToAdd; ++i)
{
byte[] buffer = new byte[bufferSize];
bufferViews[i] = AddBinaryDataToStreamHelper(glbObject, new MemoryStream(buffer));
}
uint previousFileLength = glbObject.Header.FileLength;
uint previousBufferLength = glbObject.BinaryChunkInfo.Length;
int previousBufferViewCount = glbObject.Root.BufferViews.Count;
GLBBuilder.RemoveBinaryData(glbObject, bufferViews[2]); // remove from the middle
Assert.AreEqual(previousFileLength, glbObject.Header.FileLength);
Assert.AreEqual(previousBufferLength, glbObject.BinaryChunkInfo.Length);
Assert.AreEqual(previousBufferViewCount - 1, glbObject.Root.BufferViews.Count);
}
public void RemoveAllDataFromStream()
{
string outPath =
TestAssetPaths.GetOutPath(TestAssetPaths.GLB_BOX_OUT_PATH_TEMPLATE, 3, TestAssetPaths.GLB_EXTENSION);
FileStream glbStream = File.OpenRead(TestAssetPaths.GLB_BOX_PATH);
FileStream glbOutStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
GLBObject glbObject = GLBBuilder.ConstructFromStream(glbStream, glbOutStream);
BufferViewId id0 = new BufferViewId
{
Id = 0,
Root = glbObject.Root
};
int numBufferViews = glbObject.Root.BufferViews.Count;
for (int i = 0; i < numBufferViews; ++i)
{
GLBBuilder.RemoveBinaryData(glbObject, id0);
}
Assert.AreEqual(0, glbObject.Root.Buffers.Count);
Assert.AreEqual(0, glbObject.Root.BufferViews.Count);
}
public void RemoveBinaryDataFromStream()
{
string outPath =
TestAssetPaths.GetOutPath(TestAssetPaths.GLB_BOX_OUT_PATH_TEMPLATE, 2, TestAssetPaths.GLB_EXTENSION);
FileStream glbStream = File.OpenRead(TestAssetPaths.GLB_BOX_PATH);
FileStream glbOutStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
GLBObject glbObject = GLBBuilder.ConstructFromStream(glbStream, glbOutStream);
const uint bufferSize = 100;
byte[] buffer = new byte[bufferSize];
BufferViewId bufferViewId = AddBinaryDataToStreamHelper(glbObject, new MemoryStream(buffer));
uint length = (uint)bufferViewId.Value.ByteLength;
uint previousFileLength = glbObject.Header.FileLength;
uint previousBufferLength = glbObject.BinaryChunkInfo.Length;
int previousBufferViewCount = glbObject.Root.BufferViews.Count;
GLBBuilder.RemoveBinaryData(glbObject, bufferViewId);
Assert.AreEqual(previousFileLength - length, glbObject.Header.FileLength);
Assert.AreEqual(previousBufferLength - length, glbObject.BinaryChunkInfo.Length);
Assert.AreEqual(previousBufferLength - length, (uint)glbObject.Root.Buffers[0].ByteLength);
Assert.AreEqual(previousBufferViewCount - 1, glbObject.Root.BufferViews.Count);
}
protected AccessorId ExportAccessor(Matrix4x4[] arr, BufferViewId bufferViewId = null)
{
var count = arr.Length;
if (count == 0)
{
throw new Exception("Accessors can not have a count of 0.");
}
var accessor = new Accessor();
accessor.ComponentType = GLTFComponentType.Float;
accessor.Count = count;
accessor.Type = GLTFAccessorAttributeType.MAT4;
var byteOffset = _bufferWriter.BaseStream.Position;
foreach (var vec in arr)
{
_bufferWriter.Write(vec.m00);
_bufferWriter.Write(vec.m10);
_bufferWriter.Write(vec.m20);
_bufferWriter.Write(vec.m30);
_bufferWriter.Write(vec.m01);
_bufferWriter.Write(vec.m11);
_bufferWriter.Write(vec.m21);
_bufferWriter.Write(vec.m31);
_bufferWriter.Write(vec.m02);
_bufferWriter.Write(vec.m12);
_bufferWriter.Write(vec.m22);
_bufferWriter.Write(vec.m32);
_bufferWriter.Write(vec.m03);
_bufferWriter.Write(vec.m13);
_bufferWriter.Write(vec.m23);
_bufferWriter.Write(vec.m33);
}
var byteLength = _bufferWriter.BaseStream.Position - byteOffset;
if (bufferViewId != null)
{
accessor.BufferView = bufferViewId;
accessor.ByteOffset = (int)byteOffset;
}
else
{
accessor.BufferView = ExportBufferView((int)byteOffset, (int)byteLength);
}
var id = new AccessorId
{
Id = _root.Accessors.Count,
Root = _root
};
_root.Accessors.Add(accessor);
return(id);
}
public static BufferViewId WriteBufferView(this GLTFRoot root, BufferId bufferId, int byteOffset, int byteLength)
{
var bufferView = new BufferView
{
Buffer = bufferId,
ByteOffset = byteOffset,
ByteLength = byteLength,
};
var id = new BufferViewId
{
Id = root.BufferViews.Count,
Root = root
};
root.BufferViews.Add(bufferView);
return(id);
}
public static AccessorId WriteAccessor(this GLTFRoot root, BufferId bufferId, UnityEngine.Color[] arr, BufferViewId bufferViewId = null, BinaryWriter writer = null)
{
var count = arr.Length;
if (count == 0)
{
MyLog.LogError("Accessors can not have a count of 0.");
}
var accessor = new Accessor();
accessor.ComponentType = GLTFComponentType.Float;
accessor.Count = count;
accessor.Type = GLTFAccessorAttributeType.VEC4;
float minR = arr[0].r;
float minG = arr[0].g;
float minB = arr[0].b;
float minA = arr[0].a;
float maxR = arr[0].r;
float maxG = arr[0].g;
float maxB = arr[0].b;
float maxA = arr[0].a;
for (var i = 1; i < count; i++)
{
var cur = arr[i];
if (cur.r < minR)
{
minR = cur.r;
}
if (cur.g < minG)
{
minG = cur.g;
}
if (cur.b < minB)
{
minB = cur.b;
}
if (cur.a < minA)
{
minA = cur.a;
}
if (cur.r > maxR)
{
maxR = cur.r;
}
if (cur.g > maxG)
{
maxG = cur.g;
}
if (cur.b > maxB)
{
maxB = cur.b;
}
if (cur.a > maxA)
{
maxA = cur.a;
}
}
accessor.Normalized = true;
accessor.Min = new List <double> {
minR, minG, minB, minA
};
accessor.Max = new List <double> {
maxR, maxG, maxB, maxA
};
var byteOffset = writer.BaseStream.Position;
foreach (var color in arr)
{
writer.Write(color.r);
writer.Write(color.g);
writer.Write(color.b);
writer.Write(color.a);
}
var byteLength = writer.BaseStream.Position - byteOffset;
if (bufferViewId != null)
{
accessor.BufferView = bufferViewId;
accessor.ByteOffset = (int)byteOffset;
}
else
{
accessor.BufferView = root.WriteBufferView(bufferId, (int)byteOffset, (int)byteLength);
}
var id = new AccessorId
{
Id = root.Accessors.Count,
Root = root
};
root.Accessors.Add(accessor);
return(id);
}
public static AccessorId WriteAccessor(this GLTFRoot root, BufferId bufferId, Matrix4x4[] arr, BufferViewId bufferViewId = null, BinaryWriter writer = null)
{
var count = arr.Length;
if (count == 0)
{
MyLog.LogError("Accessors can not have a count of 0.");
}
var accessor = new Accessor();
accessor.ComponentType = GLTFComponentType.Float;
accessor.Count = count;
accessor.Type = GLTFAccessorAttributeType.MAT4;
var byteOffset = writer.BaseStream.Position;
foreach (var vec in arr)
{
writer.Write(vec.m00);
writer.Write(vec.m10);
writer.Write(vec.m20);
writer.Write(vec.m30);
writer.Write(vec.m01);
writer.Write(vec.m11);
writer.Write(vec.m21);
writer.Write(vec.m31);
writer.Write(vec.m02);
writer.Write(vec.m12);
writer.Write(vec.m22);
writer.Write(vec.m32);
writer.Write(vec.m03);
writer.Write(vec.m13);
writer.Write(vec.m23);
writer.Write(vec.m33);
}
var byteLength = writer.BaseStream.Position - byteOffset;
if (bufferViewId != null)
{
accessor.BufferView = bufferViewId;
accessor.ByteOffset = (int)byteOffset;
}
else
{
accessor.BufferView = root.WriteBufferView(bufferId, (int)byteOffset, (int)byteLength);
}
var id = new AccessorId
{
Id = root.Accessors.Count,
Root = root
};
root.Accessors.Add(accessor);
return(id);
}
public static AccessorId WriteAccessor(this GLTFRoot root, BufferId bufferId, Vector4[] arr, BufferViewId bufferViewId = null, bool normalized = false, BinaryWriter writer = null)
{
var count = arr.Length;
if (count == 0)
{
MyLog.LogError("Accessors can not have a count of 0.");
}
var accessor = new Accessor();
accessor.ComponentType = GLTFComponentType.Float;
accessor.Count = count;
accessor.Type = GLTFAccessorAttributeType.VEC4;
float minX = arr[0].x;
float minY = arr[0].y;
float minZ = arr[0].z;
float minW = arr[0].w;
float maxX = arr[0].x;
float maxY = arr[0].y;
float maxZ = arr[0].z;
float maxW = arr[0].w;
for (var i = 1; i < count; i++)
{
var cur = arr[i];
if (cur.x < minX)
{
minX = cur.x;
}
if (cur.y < minY)
{
minY = cur.y;
}
if (cur.z < minZ)
{
minZ = cur.z;
}
if (cur.w < minW)
{
minW = cur.w;
}
if (cur.x > maxX)
{
maxX = cur.x;
}
if (cur.y > maxY)
{
maxY = cur.y;
}
if (cur.z > maxZ)
{
maxZ = cur.z;
}
if (cur.w > maxW)
{
maxW = cur.w;
}
}
accessor.Normalized = normalized;
accessor.Min = new List <double> {
minX, minY, minZ, minW
};
accessor.Max = new List <double> {
maxX, maxY, maxZ, maxW
};
var byteOffset = writer.BaseStream.Position;
foreach (var vec in arr)
{
writer.Write(vec.x);
writer.Write(vec.y);
writer.Write(vec.z);
writer.Write(vec.w);
}
var byteLength = writer.BaseStream.Position - byteOffset;
if (bufferViewId != null)
{
accessor.BufferView = bufferViewId;
accessor.ByteOffset = (int)byteOffset;
}
else
{
accessor.BufferView = root.WriteBufferView(bufferId, (int)byteOffset, (int)byteLength);
}
var id = new AccessorId
{
Id = root.Accessors.Count,
Root = root
};
root.Accessors.Add(accessor);
return(id);
}
public static AccessorId WriteAccessor(this GLTFRoot root, BufferId bufferId, Vector3[] arr, BufferViewId bufferViewId = null, bool normalized = false, Transform rootNode = null, BinaryWriter writer = null)
{
var count = arr.Length;
if (count == 0)
{
MyLog.LogError("Accessors can not have a count of 0.");
}
var accessor = new Accessor();
accessor.ComponentType = GLTFComponentType.Float;
accessor.Count = count;
accessor.Type = GLTFAccessorAttributeType.VEC3;
/*float minX = arr[0].x;
* float minY = arr[0].y;
* float minZ = arr[0].z;
* float maxX = arr[0].x;
* float maxY = arr[0].y;
* float maxZ = arr[0].z;
*
* for (var i = 1; i < count; i++)
* {
* var cur = arr[i];
*
* if (cur.x < minX)
* {
* minX = cur.x;
* }
* if (cur.y < minY)
* {
* minY = cur.y;
* }
* if (cur.z < minZ)
* {
* minZ = cur.z;
* }
* if (cur.x > maxX)
* {
* maxX = cur.x;
* }
* if (cur.y > maxY)
* {
* maxY = cur.y;
* }
* if (cur.z > maxZ)
* {
* maxZ = cur.z;
* }
* }*/
accessor.Normalized = normalized;
//accessor.Min = new List<double> { minX, minY, minZ };
//accessor.Max = new List<double> { maxX, maxY, maxZ };
var byteOffset = writer.BaseStream.Position;
Matrix4x4 mA = rootNode != null ? rootNode.localToWorldMatrix : new Matrix4x4();
Matrix4x4 mB = rootNode != null ? rootNode.parent.worldToLocalMatrix : new Matrix4x4();
foreach (var vec in arr)
{
writer.Write(vec.x);
writer.Write(vec.y);
writer.Write(vec.z);
}
var byteLength = writer.BaseStream.Position - byteOffset;
if (bufferViewId != null)
{
accessor.BufferView = bufferViewId;
accessor.ByteOffset = (int)byteOffset;
}
else
{
accessor.BufferView = root.WriteBufferView(bufferId, (int)byteOffset, (int)byteLength);
}
var id = new AccessorId
{
Id = root.Accessors.Count,
Root = root
};
root.Accessors.Add(accessor);
return(id);
}
protected AccessorId ExportAccessor(UnityEngine.Color[] arr, BufferViewId bufferViewId = null)
{
var count = arr.Length;
if (count == 0)
{
throw new Exception("Accessors can not have a count of 0.");
}
var accessor = new Accessor();
accessor.ComponentType = GLTFComponentType.Float;
accessor.Count = count;
accessor.Type = GLTFAccessorAttributeType.VEC4;
float minR = arr[0].r;
float minG = arr[0].g;
float minB = arr[0].b;
float minA = arr[0].a;
float maxR = arr[0].r;
float maxG = arr[0].g;
float maxB = arr[0].b;
float maxA = arr[0].a;
for (var i = 1; i < count; i++)
{
var cur = arr[i];
if (cur.r < minR)
{
minR = cur.r;
}
if (cur.g < minG)
{
minG = cur.g;
}
if (cur.b < minB)
{
minB = cur.b;
}
if (cur.a < minA)
{
minA = cur.a;
}
if (cur.r > maxR)
{
maxR = cur.r;
}
if (cur.g > maxG)
{
maxG = cur.g;
}
if (cur.b > maxB)
{
maxB = cur.b;
}
if (cur.a > maxA)
{
maxA = cur.a;
}
}
accessor.Normalized = true;
accessor.Min = new List <double> {
minR, minG, minB, minA
};
accessor.Max = new List <double> {
maxR, maxG, maxB, maxA
};
var byteOffset = _bufferWriter.BaseStream.Position;
foreach (var color in arr)
{
_bufferWriter.Write(color.r);
_bufferWriter.Write(color.g);
_bufferWriter.Write(color.b);
_bufferWriter.Write(color.a);
}
var byteLength = _bufferWriter.BaseStream.Position - byteOffset;
if (bufferViewId != null)
{
accessor.BufferView = bufferViewId;
accessor.ByteOffset = (int)byteOffset;
}
else
{
accessor.BufferView = ExportBufferView((int)byteOffset, (int)byteLength);
}
var id = new AccessorId
{
Id = _root.Accessors.Count,
Root = _root
};
_root.Accessors.Add(accessor);
return(id);
}
protected AccessorId ExportAccessor(Vector4[] arr, BufferViewId bufferViewId = null, bool normalized = false)
{
var count = arr.Length;
if (count == 0)
{
throw new Exception("Accessors can not have a count of 0.");
}
var accessor = new Accessor();
accessor.ComponentType = GLTFComponentType.Float;
accessor.Count = count;
accessor.Type = GLTFAccessorAttributeType.VEC4;
float minX = arr[0].x;
float minY = arr[0].y;
float minZ = arr[0].z;
float minW = arr[0].w;
float maxX = arr[0].x;
float maxY = arr[0].y;
float maxZ = arr[0].z;
float maxW = arr[0].w;
for (var i = 1; i < count; i++)
{
var cur = arr[i];
if (cur.x < minX)
{
minX = cur.x;
}
if (cur.y < minY)
{
minY = cur.y;
}
if (cur.z < minZ)
{
minZ = cur.z;
}
if (cur.w < minW)
{
minW = cur.w;
}
if (cur.x > maxX)
{
maxX = cur.x;
}
if (cur.y > maxY)
{
maxY = cur.y;
}
if (cur.z > maxZ)
{
maxZ = cur.z;
}
if (cur.w > maxW)
{
maxW = cur.w;
}
}
accessor.Normalized = normalized;
accessor.Min = new List <double> {
minX, minY, minZ, minW
};
accessor.Max = new List <double> {
maxX, maxY, maxZ, maxW
};
var byteOffset = _bufferWriter.BaseStream.Position;
foreach (var vec in arr)
{
_bufferWriter.Write(vec.x);
_bufferWriter.Write(vec.y);
_bufferWriter.Write(vec.z);
_bufferWriter.Write(vec.w);
}
var byteLength = _bufferWriter.BaseStream.Position - byteOffset;
if (bufferViewId != null)
{
accessor.BufferView = bufferViewId;
accessor.ByteOffset = (int)byteOffset;
}
else
{
accessor.BufferView = ExportBufferView((int)byteOffset, (int)byteLength);
}
var id = new AccessorId
{
Id = _root.Accessors.Count,
Root = _root
};
_root.Accessors.Add(accessor);
return(id);
}
protected AccessorId ExportAccessor(Vector3[] arr, BufferViewId bufferViewId = null, bool normalized = false, Transform root = null)
{
var count = arr.Length;
if (count == 0)
{
throw new Exception("Accessors can not have a count of 0.");
}
var accessor = new Accessor();
accessor.ComponentType = GLTFComponentType.Float;
accessor.Count = count;
accessor.Type = GLTFAccessorAttributeType.VEC3;
/*float minX = arr[0].x;
* float minY = arr[0].y;
* float minZ = arr[0].z;
* float maxX = arr[0].x;
* float maxY = arr[0].y;
* float maxZ = arr[0].z;
*
* for (var i = 1; i < count; i++)
* {
* var cur = arr[i];
*
* if (cur.x < minX)
* {
* minX = cur.x;
* }
* if (cur.y < minY)
* {
* minY = cur.y;
* }
* if (cur.z < minZ)
* {
* minZ = cur.z;
* }
* if (cur.x > maxX)
* {
* maxX = cur.x;
* }
* if (cur.y > maxY)
* {
* maxY = cur.y;
* }
* if (cur.z > maxZ)
* {
* maxZ = cur.z;
* }
* }*/
accessor.Normalized = normalized;
//accessor.Min = new List<double> { minX, minY, minZ };
//accessor.Max = new List<double> { maxX, maxY, maxZ };
var byteOffset = _bufferWriter.BaseStream.Position;
Matrix4x4 mA = root != null ? root.localToWorldMatrix : new Matrix4x4();
Matrix4x4 mB = root != null ? root.parent.worldToLocalMatrix : new Matrix4x4();
foreach (var vec in arr)
{
if (root != null)
{
if (normalized)
{
var v = mB.MultiplyVector(mA.MultiplyVector(vec));
_bufferWriter.Write(v.x);
_bufferWriter.Write(v.y);
_bufferWriter.Write(v.z);
}
else
{
var v = mB.MultiplyPoint(mA.MultiplyPoint(vec));
_bufferWriter.Write(v.x);
_bufferWriter.Write(v.y);
_bufferWriter.Write(v.z);
}
}
else
{
_bufferWriter.Write(vec.x);
_bufferWriter.Write(vec.y);
_bufferWriter.Write(vec.z);
}
}
var byteLength = _bufferWriter.BaseStream.Position - byteOffset;
if (bufferViewId != null)
{
accessor.BufferView = bufferViewId;
accessor.ByteOffset = (int)byteOffset;
}
else
{
accessor.BufferView = ExportBufferView((int)byteOffset, (int)byteLength);
}
var id = new AccessorId
{
Id = _root.Accessors.Count,
Root = _root
};
_root.Accessors.Add(accessor);
return(id);
}
