void UpdateMeshNow()
{
_meshDirty = false;
if (_texture == null || _meshFactory == null)
{
if (mesh.vertexCount > 0)
{
mesh.Clear();
if (meshModifier != null)
{
meshModifier();
}
}
return;
}
VertexBuffer vb = VertexBuffer.Begin();
vb.contentRect = _contentRect;
vb.uvRect = _texture.uvRect;
if (_texture != null)
{
vb.textureSize = new Vector2(_texture.width, _texture.height);
}
else
{
vb.textureSize = new Vector2(0, 0);
}
if (_flip != FlipType.None)
{
if (_flip == FlipType.Horizontal || _flip == FlipType.Both)
{
float tmp = vb.uvRect.xMin;
vb.uvRect.xMin = vb.uvRect.xMax;
vb.uvRect.xMax = tmp;
}
if (_flip == FlipType.Vertical || _flip == FlipType.Both)
{
float tmp = vb.uvRect.yMin;
vb.uvRect.yMin = vb.uvRect.yMax;
vb.uvRect.yMax = tmp;
}
}
vb.vertexColor = _color;
_meshFactory.OnPopulateMesh(vb);
int vertCount = vb.currentVertCount;
if (vertCount == 0)
{
if (mesh.vertexCount > 0)
{
mesh.Clear();
if (meshModifier != null)
{
meshModifier();
}
}
vb.End();
return;
}
if (_texture.rotated)
{
float xMin = _texture.uvRect.xMin;
float yMin = _texture.uvRect.yMin;
float yMax = _texture.uvRect.yMax;
float tmp;
for (int i = 0; i < vertCount; i++)
{
Vector2 vec = vb.uvs[i];
tmp = vec.y;
vec.y = yMin + vec.x - xMin;
vec.x = xMin + yMax - tmp;
vb.uvs[i] = vec;
}
}
hasAlphaBackup = vb._alphaInVertexColor;
if (hasAlphaBackup)
{
if (_alphaBackup == null)
{
_alphaBackup = new List <byte>();
}
else
{
_alphaBackup.Clear();
}
for (int i = 0; i < vertCount; i++)
{
Color32 col = vb.colors[i];
_alphaBackup.Add(col.a);
col.a = (byte)(col.a * _alpha);
vb.colors[i] = col;
}
}
else if (_alpha != 1)
{
for (int i = 0; i < vertCount; i++)
{
Color32 col = vb.colors[i];
col.a = (byte)(col.a * _alpha);
vb.colors[i] = col;
}
}
if (_vertexMatrix != null)
{
Vector3 camPos = _vertexMatrix.cameraPos;
Vector3 center = new Vector3(camPos.x, camPos.y, 0);
center -= _vertexMatrix.matrix.MultiplyPoint(center);
for (int i = 0; i < vertCount; i++)
{
Vector3 pt = vb.vertices[i];
pt = _vertexMatrix.matrix.MultiplyPoint(pt);
pt += center;
Vector3 vec = pt - camPos;
float lambda = -camPos.z / vec.z;
pt.x = camPos.x + lambda * vec.x;
pt.y = camPos.y + lambda * vec.y;
pt.z = 0;
vb.vertices[i] = pt;
}
}
mesh.Clear();
#if UNITY_5_2 || UNITY_5_3_OR_NEWER
mesh.SetVertices(vb.vertices);
if (vb._isArbitraryQuad)
{
mesh.SetUVs(0, vb.FixUVForArbitraryQuad());
}
else
{
mesh.SetUVs(0, vb.uvs);
}
mesh.SetColors(vb.colors);
mesh.SetTriangles(vb.triangles, 0);
if (vb.uvs2.Count == vb.uvs.Count)
{
mesh.SetUVs(1, vb.uvs2);
}
#if !UNITY_5_6_OR_NEWER
_colors = null;
#endif
#else
Vector3 vertices = new Vector3[vertCount];
Vector2 uv = new Vector2[vertCount];
_colors = new Color32[vertCount];
int triangles = new int[vb.triangles.Count];
vb.vertices.CopyTo(vertices);
vb.uvs.CopyTo(uv);
vb.colors.CopyTo(_colors);
vb.triangles.CopyTo(triangles);
mesh.vertices = vertices;
mesh.uv = uv;
mesh.triangles = triangles;
mesh.colors32 = _colors;
if (vb.uvs2.Count == uv.Length)
{
uv = new Vector2[vertCount];
vb.uvs2.CopyTo(uv);
mesh.uv2 = uv;
}
#endif
vb.End();
if (meshModifier != null)
{
meshModifier();
}
}
