public void SetBezier3D(Vector3 v1, Vector3 v2, Vector3 v3, Vector3 v4, int count)
{
EngineNS.Bezier3D bezier3d = new EngineNS.Bezier3D(v1, v2, v3, v4);
Points.Clear();
AABB.InitEmptyBox();
float times = 1.0f / (float)count;
for (int i = 0; i < count; i++)
{
var pt = bezier3d.GetValue(Math.Min(times * i, 1.0f));
unsafe
{
Points.Add(pt);
AABB.Merge(ref pt);
}
}
}
public void CalculateVertexindexes(int StartIndex)
{
//处理索引
if (Positions.Count < 4)
{
return;
}
VertexIndexes.Clear((uint)((Positions.Count - 2) * 3));
for (int i = 2; i < Positions.Count; i += 2)
{
VertexIndexes.Add(StartIndex + i - 2);
VertexIndexes.Add(StartIndex + i - 1);
VertexIndexes.Add(StartIndex + i);
VertexIndexes.Add(StartIndex + i + 1);
VertexIndexes.Add(StartIndex + i);
VertexIndexes.Add(StartIndex + i - 1);
}
}
private unsafe void UpdateIndexBufferCPU(CCommandList cmd, Graphics.CGfxCamera Camera)
{
if (mCpuDrawIndexBuffer == null)
{
return;
}
CBMeshBatch cbMesh = new CBMeshBatch();
{
var pPlanes = stackalloc Plane[6];
Camera.CullingFrustum.GetPlanes(pPlanes);
CBMeshBatch *pCBuffer = &cbMesh;
Plane * planesTar = (Plane *)pCBuffer;
for (uint i = 0; i < 6; i++)
{
planesTar[i] = pPlanes[i];
}
cbMesh.GpuDrivenCameraPosition = Camera.CullingFrustum.TipPos;
BoundingBox box = new BoundingBox();
Camera.CullingFrustum.GetBoundBox(ref box);
cbMesh.GpuDrivenFrustumMinPoint = box.Minimum;
cbMesh.GpuDrivenFrustumMaxPoint = box.Maximum;
cbMesh.MeshBatchVertexStride = (uint)AllVertices.Count;
cbMesh.ClusterNumber = (uint)GpuClusters.Count;
UpdateCBMeshbatch(cmd, Camera);
}
UInt32_3 tri = new UInt32_3();
mDrawIndices.Clear();
for (int i = 0; i < GpuClusters.Count; i++)
{
var cluster = GpuClusters[i];
var GpuDrivenCameraDirection = GpuClusters[i].BoundCenter - cbMesh.GpuDrivenCameraPosition;
var cameraDirInBoundSpace = Vector3.TransposeTransformNormal(GpuDrivenCameraDirection, GpuInstanceDatas[(int)cluster.InstanceId].InvMatrix);
if (FrustumCull(ref cluster, ref cbMesh) == false)
{
UInt64 visBits = 0;
if (cameraDirInBoundSpace.X >= 0)
{
visBits |= cluster.CubeFaces[(int)Cluster.GpuCluster.ECubeFace.CubeFace_NX];
}
else
{
visBits |= cluster.CubeFaces[(int)Cluster.GpuCluster.ECubeFace.CubeFace_X];
}
if (cameraDirInBoundSpace.Y >= 0)
{
visBits |= cluster.CubeFaces[(int)Cluster.GpuCluster.ECubeFace.CubeFace_NY];
}
else
{
visBits |= cluster.CubeFaces[(int)Cluster.GpuCluster.ECubeFace.CubeFace_Y];
}
if (cameraDirInBoundSpace.Z >= 0)
{
visBits |= cluster.CubeFaces[(int)Cluster.GpuCluster.ECubeFace.CubeFace_NZ];
}
else
{
visBits |= cluster.CubeFaces[(int)Cluster.GpuCluster.ECubeFace.CubeFace_Z];
}
uint InstanceStartIndex = cbMesh.MeshBatchVertexStride * cluster.InstanceId;
for (int j = 0; j < cluster.FaceCount; j++)
{
if (TestBit(visBits, j) == false)
{
continue;
}
int srcIndex = (int)(cluster.StartFaceIndex + j) * 3;
tri.x = InstanceStartIndex + AllIndices[srcIndex];
tri.y = InstanceStartIndex + AllIndices[srcIndex + 1];
tri.z = InstanceStartIndex + AllIndices[srcIndex + 2];
mDrawIndices.Add(tri);
}
}
}
mDrawArgs.InstanceCount = 1;
mDrawArgs.IndexCountPerInstance = (uint)mDrawIndices.Count * 3;
uint size = (uint)(mDrawIndices.Count * sizeof(UInt32_3));
if (mCpuDrawIndexBuffer.Desc.ByteWidth > size)
{
mCpuDrawIndexBuffer.UpdateBuffData(cmd, mDrawIndices.GetBufferPtr(), size);
}
}
public void BuildGraph(Support.NativeList <LinePosition> position, Support.NativeList <LineUV> uv, float halfWidth)
{
BeforeGraph(position);
LineUV rectUV = new LineUV();
rectUV.SetUV();
Vector3 cur, tar;
bool drawing = true;
float remainLength = GetSegment(position);
bool isContinued = false;
do
{
var normal = GetNormalDir();
NextStartPoint(out cur);
isContinued = NextEndPoint(out tar); //NextStartPoint(out tar);
float dist = Vector3.Distance(ref cur, ref tar);
var dir = tar - cur;
dir.Normalize();
Vector3 extDir = Vector3.Cross(dir, normal);
extDir.Normalize();
while (dist >= remainLength)
{
if (drawing)
{
var end = cur + dir * remainLength;
var l = new LinePosition();
l.SetLine(ref cur, ref end, ref extDir, halfWidth);
//position.Add(l);
//uv.Add(rectUV);
unsafe
{
position.Add(l);
uv.Add(rectUV);
}
drawing = false;
dist -= remainLength;
remainLength = GetInterval(position);
cur = end;
}
else
{
drawing = true;
dist -= remainLength;
cur = cur + dir * remainLength;
remainLength = GetSegment(position);
extDir = Vector3.Cross(dir, normal);
extDir.Normalize();
}
}
if (drawing)
{
var end = cur + dir * dist;
var l = new LinePosition();
l.SetLine(ref cur, ref end, ref extDir, halfWidth);
remainLength = remainLength - dist;
//position.Add(l);
//uv.Add(rectUV);
unsafe
{
position.Add(l);
uv.Add(rectUV);
}
dist = 0;
}
else
{
remainLength = remainLength - dist;
dist = 0;
}
} while (isContinued);
}
public void UpdateGeomMesh(CRenderContext rc, float halfWidth = 0.1F)
{
if (GeomMesh == null)
{
return;
}
CDrawPrimitiveDesc dpDesc = new CDrawPrimitiveDesc();
dpDesc.SetDefault();
if (UseGeometry)
{
mTempPosition.Clear();
mTempUV.Clear();
LinesGen.BuildGraph(mTempPosition, mTempUV, halfWidth);
mTempNormal.Clear();
mTempNormal.SetGrowStep(mTempPosition.Count);
for (int i = 0; i < mTempPosition.Count; i++)
{
//mTempNormal.Add(mTempPosition[i].CalcNormals());
unsafe
{
LinePosition tempNorm = new LinePosition();
var ptr = (LinePosition *)mTempPosition.UnsafeAddressAt(i).ToPointer();
ptr->CalcNormals(ref tempNorm);
mTempNormal.Add(tempNorm);
}
}
dpDesc.StartIndex = 0xFFFFFFFF;
if (halfWidth == 0)
{
dpDesc.PrimitiveType = EPrimitiveType.EPT_LineList;
dpDesc.NumPrimitives = (UInt32)(mTempPosition.Count * 3 * 3);
}
else
{
dpDesc.NumPrimitives = (UInt32)(mTempPosition.Count * 3 * 2);
}
GeomMesh.SetAtom(0, 0, ref dpDesc);
unsafe
{
GeomMesh.SetGeomtryMeshStream(rc, EVertexSteamType.VST_Position, mTempPosition.GetBufferPtr(),
(UInt32)(sizeof(LinePosition) * mTempPosition.Count), (UInt32)sizeof(Vector3), 0);
GeomMesh.SetGeomtryMeshStream(rc, EVertexSteamType.VST_Normal, mTempNormal.GetBufferPtr(),
(UInt32)(sizeof(LinePosition) * mTempNormal.Count), (UInt32)sizeof(Vector3), 0);
GeomMesh.SetGeomtryMeshStream(rc, EVertexSteamType.VST_UV, mTempUV.GetBufferPtr(),
(UInt32)(sizeof(LineUV) * mTempUV.Count), (UInt32)sizeof(Vector2), 0);
}
}
else
{
mTempPosition.Clear();
mTempUV.Clear();
LinesGen.BuildGraph(mTempPosition, mTempUV, halfWidth);
mTempNormal.Clear();
mTempNormal.SetGrowStep(mTempPosition.Count);
for (int i = 0; i < mTempPosition.Count; i++)
{
//mTempNormal.Add(mTempPosition[i].CalcNormals());
unsafe
{
LinePosition tempNorm = new LinePosition();
var ptr = (LinePosition *)mTempPosition.UnsafeAddressAt(i).ToPointer();
ptr->CalcNormals(ref tempNorm);
mTempNormal.Add(tempNorm);
}
}
dpDesc.StartIndex = 0xFFFFFFFF;
if (halfWidth == 0)
{
dpDesc.PrimitiveType = EPrimitiveType.EPT_LineList;
dpDesc.NumPrimitives = (UInt32)(mTempPosition.Count * 3);
}
else
{
dpDesc.NumPrimitives = (UInt32)(mTempPosition.Count * 2);
}
GeomMesh.SetAtom(0, 0, ref dpDesc);
unsafe
{
GeomMesh.SetGeomtryMeshStream(rc, EVertexSteamType.VST_Position, mTempPosition.GetBufferPtr(),
(UInt32)(sizeof(LinePosition) * mTempPosition.Count), (UInt32)sizeof(Vector3), 0);
GeomMesh.SetGeomtryMeshStream(rc, EVertexSteamType.VST_Normal, mTempNormal.GetBufferPtr(),
(UInt32)(sizeof(LinePosition) * mTempNormal.Count), (UInt32)sizeof(Vector3), 0);
GeomMesh.SetGeomtryMeshStream(rc, EVertexSteamType.VST_UV, mTempUV.GetBufferPtr(),
(UInt32)(sizeof(LineUV) * mTempUV.Count), (UInt32)sizeof(Vector2), 0);
}
}
GeomMesh.AABB = LinesGen.AABB;
GeomMesh.GeometryMesh.Dirty = true;
}
public void CreateTrailData(ref Vector3 ppos, ref Quaternion prot, ref Vector3 pscale, ref Matrix worldmatrix, bool isbind)
{
if (first)
{
PrePosition = ppos;
first = false;
return;
}
var distance = Vector3.Distance(ref ppos, ref PrePosition);
if (distance < MinVertextDistance)
{
return;
}
PrePosition = ppos;
Vector3 p2 = Direction * (-Width) * 0.5f;
Vector3 p3 = Direction * Width * 0.5f;
if (isbind)
{
Vector3 scale;
Quaternion rotation;
Vector3 translation;
worldmatrix.Decompose(out scale, out rotation, out translation);
p2 = pscale * p2;
p3 = pscale * p3;
if (prot.IsValid)
{
p2 = prot * p2;
p3 = prot * p3;
}
p2 = scale * p2;
p3 = scale * p3;
if (rotation.IsValid)
{
p2 = rotation * p2;
p3 = rotation * p3;
}
p2 = ppos + p2;
p3 = ppos + p3;
}
else
{
Vector4 temp = new Vector4();
p2 = pscale * p2;
p3 = pscale * p3;
if (prot.IsValid)
{
p2 = prot * p2;
p3 = prot * p3;
}
Vector3.Transform(ref p2, ref worldmatrix, out temp);
p2.X = temp.X + ppos.X;
p2.Y = temp.Y + ppos.Y;
p2.Z = temp.Z + ppos.Z;
Vector3.Transform(ref p3, ref worldmatrix, out temp);
p3.X = temp.X + ppos.X;
p3.Y = temp.Y + ppos.Y;
p3.Z = temp.Z + ppos.Z;
}
Positions.Add(p2);
Positions.Add(p3);
Colors.Add(DefaultColor);
Colors.Add(DefaultColor);
UVs.Add(new Vector2(0, 0));
UVs.Add(new Vector2(0, 0));
Tangents.Add(Vector4.UnitX);
Tangents.Add(Vector4.UnitX);
Normals.Add(new Vector3(0, 0, -1));
Normals.Add(new Vector3(0, 0, -1));
LifeTicks.Add(0);
LifeTicks.Add(0);
//CalculateVertexindexes();
}
public void AddDefaultColorBuff(CRenderContext rc, CGfxMeshPrimitives result)
{
if (result == null)
{
return;
}
var mesh = result.GeometryMesh;
if (mesh == null)
{
return;
}
CVertexBuffer colorbuff = mesh.GetVertexBuffer(EVertexSteamType.VST_Color);
if (colorbuff != null)
{
return;
}
CVertexBuffer posbuff = mesh.GetVertexBuffer(EVertexSteamType.VST_Position);
if (posbuff == null)
{
return;
}
var blob = new Support.CBlobObject();
posbuff.GetBufferData(rc, blob);
int vertNum = 0;
unsafe
{
vertNum = (int)blob.Size / sizeof(Vector3);
}
if (vertNum == 0)
{
return;
}
Support.NativeList <Byte4> Colors = new Support.NativeList <Byte4>();
var color = new Byte4();
color.X = 255;
color.Y = 255;
color.Z = 255;
color.W = 255;
for (int i = 0; i < vertNum; i++)
{
Colors.Add(color);
}
var dpDesc = new CDrawPrimitiveDesc();
dpDesc.SetDefault();
dpDesc.NumPrimitives = (UInt32)vertNum;
result.SetAtom(0, 0, ref dpDesc);
UInt32 resourceSize = 0;
unsafe
{
var vbDesc = new CVertexBufferDesc();
vbDesc.CPUAccess = (UInt32)ECpuAccess.CAS_WRITE;
{
vbDesc.InitData = Colors.UnsafeAddressAt(0);
vbDesc.Stride = (UInt32)sizeof(Byte4);
vbDesc.ByteWidth = (UInt32)(sizeof(Byte4) * Colors.Count);
var vb = rc.CreateVertexBuffer(vbDesc);
mesh.BindVertexBuffer(EVertexSteamType.VST_Color, vb);
resourceSize += vbDesc.ByteWidth;
}
result.ResourceState.ResourceSize = (UInt32)(resourceSize);
mesh.Dirty = true;
}
result.ResourceState.StreamState = EStreamingState.SS_Valid;
result.ResourceState.KeepValid = true;
}
