void FillMesh(Lines li)
{
li.ClearMeshes();
var lines = li.lines;
if (lines.Count == 0)
{
return;
}
int maxLines = 64000 / 4;
int meshesCount = lines.Count / maxLines + 1;
int lineStartIndex = 0;
for (int mi = 0; mi < meshesCount; mi++)
{
var curLinesCount = (mi == meshesCount - 1) ? lines.Count % maxLines : maxLines;
var vertices = new Vector3[curLinesCount * 4];
var tangents = new Vector4[curLinesCount * 4];
var normals = new Vector3[curLinesCount * 4];
var indices = new int[curLinesCount * 6];
int curV = 0;
var t0 = new Vector4(-1.0f, -1.0f);
var t1 = new Vector4(-1.0f, +1.0f);
var t2 = new Vector4(+1.0f, -1.0f);
var t3 = new Vector4(+1.0f, +1.0f);
for (int i = 0; i < curLinesCount; i++)
{
var l = lines[i + lineStartIndex];
var t = l.b - l.a;
vertices[curV] = l.a;
tangents[curV] = t0;
normals[curV] = t;
curV++;
vertices[curV] = l.a;
tangents[curV] = t1;
normals[curV] = t;
curV++;
vertices[curV] = l.b;
tangents[curV] = t2;
normals[curV] = t;
curV++;
vertices[curV] = l.b;
tangents[curV] = t3;
normals[curV] = t;
curV++;
indices[i * 6 + 0] = i * 4 + 0;
indices[i * 6 + 1] = i * 4 + 1;
indices[i * 6 + 2] = i * 4 + 2;
indices[i * 6 + 3] = i * 4 + 3;
indices[i * 6 + 4] = i * 4 + 2;
indices[i * 6 + 5] = i * 4 + 1;
}
var mesh = CreateMesh(li, li.style);
mesh.vertices = vertices;
mesh.tangents = tangents;
mesh.normals = normals;
mesh.SetIndices(indices, MeshTopology.Triangles, 0, true);
//mesh.RecalculateBounds();
lineStartIndex += curLinesCount;
}
}
void FillMesh(Lines li)
{
li.ClearMeshes();
bool needStitchPhase = li.style.dashes.Length > 1;
var lines = li.lines;
if (lines.Count == 0)
{
return;
}
int maxLines = 64000 / 4;
int meshesCount = lines.Count / maxLines + 1;
int lineStartIndex = 0;
for (int mi = 0; mi < meshesCount; mi++)
{
var curLinesCount = (mi == meshesCount - 1) ? lines.Count % maxLines : maxLines;
var vertices = new Vector3[curLinesCount * 4];
var tangents = new Vector4[curLinesCount * 4];
var normals = new Vector3[curLinesCount * 4];
var coords = new Vector2[curLinesCount * 4];
Vector3[] normalsLeft = null;
Vector3[] normalsRight = null;
if (UseSilhouetteNormals)
{
normalsLeft = new Vector3[curLinesCount * 4];
normalsRight = new Vector3[curLinesCount * 4];
}
var indices = new int[curLinesCount * 6];
int curV = 0;
var t0 = new Vector4(-1.0f, -1.0f);
var t1 = new Vector4(-1.0f, +1.0f);
var t2 = new Vector4(+1.0f, -1.0f);
var t3 = new Vector4(+1.0f, +1.0f);
float phase = 0f;
for (int i = 0; i < curLinesCount; i++)
{
var l = lines[i + lineStartIndex];
bool needZeroPhase = false;
if (needStitchPhase && i < curLinesCount - 1)
{
var nl = lines[i + 1 + lineStartIndex];
if (l.b == nl.b)
{
nl.Swap();
lines[i + 1 + lineStartIndex] = nl;
}
else
if (l.a == nl.b)
{
nl.Swap();
lines[i + 1 + lineStartIndex] = nl;
l.Swap();
}
else
if (l.a == nl.a)
{
l.Swap();
}
if (l.b != nl.a)
{
needZeroPhase = true;
}
}
var t = l.b - l.a;
vertices[curV] = l.a;
tangents[curV] = t0;
normals[curV] = t;
coords[curV] = new Vector2(phase, -1f);
if (UseSilhouetteNormals)
{
normalsLeft[curV] = l.nl;
normalsRight[curV] = l.nr;
}
curV++;
vertices[curV] = l.a;
tangents[curV] = t1;
normals[curV] = t;
coords[curV] = new Vector2(phase, 1f);
if (UseSilhouetteNormals)
{
normalsLeft[curV] = l.nl;
normalsRight[curV] = l.nr;
}
curV++;
phase += t.magnitude;
vertices[curV] = l.b;
tangents[curV] = t2;
normals[curV] = t;
coords[curV] = new Vector2(phase, -1f);
if (UseSilhouetteNormals)
{
normalsLeft[curV] = l.nl;
normalsRight[curV] = l.nr;
}
curV++;
vertices[curV] = l.b;
tangents[curV] = t3;
normals[curV] = t;
coords[curV] = new Vector2(phase, 1f);
if (UseSilhouetteNormals)
{
normalsLeft[curV] = l.nl;
normalsRight[curV] = l.nr;
}
curV++;
indices[i * 6 + 0] = i * 4 + 0;
indices[i * 6 + 1] = i * 4 + 1;
indices[i * 6 + 2] = i * 4 + 2;
indices[i * 6 + 3] = i * 4 + 3;
indices[i * 6 + 4] = i * 4 + 2;
indices[i * 6 + 5] = i * 4 + 1;
if (needZeroPhase)
{
//Debug.LogFormat("clear phase {0} {1}", l.b.ToStr(), nl.a.ToStr());
phase = 0f;
}
}
var mesh = CreateMesh(li, li.style);
mesh.vertices = vertices;
mesh.tangents = tangents;
mesh.normals = normals;
if (UseSilhouetteNormals)
{
mesh.SetUVs(1, normalsLeft);
mesh.SetUVs(2, normalsRight);
}
mesh.uv = coords;
mesh.SetIndices(indices, MeshTopology.Triangles, 0, true);
//mesh.RecalculateBounds();
lineStartIndex += curLinesCount;
}
}