private void ReadMesh(ref XmlReadState state, System.Xml.XmlReader node)
{
node.Read();
var P = node.GetAttribute("P");
var UV = node.GetAttribute("UV");
var nverts = node.GetAttribute("nverts");
var verts = node.GetAttribute("verts");
if(!state.Silent) Console.WriteLine("{0}", node);
var has_uv = !string.IsNullOrEmpty(UV);
float[] uvfloats = null;
if (has_uv)
{
uvfloats = Utilities.Instance.parse_floats(UV);
}
var pfloats = Utilities.Instance.parse_floats(P);
var nvertsints = Utilities.Instance.parse_ints(nverts);
var vertsints = Utilities.Instance.parse_ints(verts);
var ob = new ccl.Object(Client) { Transform = state.Transform };
var me = new Mesh(Client, state.Shader);
ob.Mesh = me;
me.SetVerts(ref pfloats);
var index_offset = 0;
/* count triangles */
var fc = nvertsints.Aggregate(0, (total, next) =>
next == 4 ? total + 2 : total + 1);
float[] uvs = null;
if(has_uv) uvs = new float[fc*3*2];
var uvoffs = 0;
foreach (var t in nvertsints)
{
for (var j = 0; j < t - 2; j++)
{
var v0 = vertsints[index_offset];
var v1 = vertsints[index_offset + j + 1];
var v2 = vertsints[index_offset + j + 2];
if (has_uv)
{
uvs[uvoffs] = uvfloats[index_offset*2];
uvs[uvoffs + 1] = uvfloats[index_offset*2 + 1];
uvs[uvoffs + 2] = uvfloats[(index_offset + j + 1)*2];
uvs[uvoffs + 3] = uvfloats[(index_offset + j + 1)*2 + 1];
uvs[uvoffs + 4] = uvfloats[(index_offset + j + 2)*2];
uvs[uvoffs + 5] = uvfloats[(index_offset + j + 2)*2 + 1];
uvoffs += 6;
}
me.AddTri((uint)v0, (uint)v1, (uint)v2, state.Shader, state.Smooth);
}
index_offset += t;
}
if (has_uv)
{
me.SetUvs(ref uvs);
}
}
/// <summary>
/// Upload mesh changes
/// </summary>
public void UploadMeshChanges()
{
// handle mesh deletes first
foreach (var meshDelete in _objectDatabase.MeshesToDelete)
{
var cobs = _objectDatabase.GetCyclesObjectsForGuid(meshDelete);
foreach (var cob in cobs)
{
// remove mesh data
cob.Mesh.ClearData();
cob.Mesh.TagRebuild();
// hide object containing the mesh
cob.Visibility = PathRay.Hidden;
cob.TagUpdate();
}
}
var curmesh = 0;
var totalmeshes = _objectDatabase.MeshChanges.Count;
foreach (var meshChange in _objectDatabase.MeshChanges)
{
var cyclesMesh = meshChange.Value;
var mid = meshChange.Key;
var me = _objectDatabase.FindMeshRelation(mid);
// newme true if we have to upload new mesh data
var newme = me == null;
if (_renderEngine.CancelRender) return;
// lets find the shader for this, or use 0 if none found.
uint shid;
var matid = _objectShaderDatabase.FindRenderHashForMeshId(cyclesMesh.MeshId);
try
{
// @todo check this is correct naming and dictionary to query from
shid = _shaderDatabase.GetShaderIdForMatId(matid);
}
catch (Exception)
{
shid = 0;
}
var shader = _renderEngine.Client.Scene.ShaderFromSceneId(shid);
// creat a new mesh to upload mesh data to
if (newme)
{
me = new CclMesh(_renderEngine.Client, shader);
}
me.Resize((uint)cyclesMesh.verts.Length/3, (uint)cyclesMesh.faces.Length/3);
// update status bar of render window.
var stat =
$"Upload mesh {curmesh}/{totalmeshes} [v: {cyclesMesh.verts.Length}, t: {cyclesMesh.faces.Length} using shader {shid}]";
// set progress, but without rendering percentage (hence the -1.0f)
_renderEngine.SetProgress(_renderEngine.RenderWindow, stat, -1.0f);
// upload, if we get false back we were signalled to stop rendering by user
if (!UploadMeshData(me, cyclesMesh)) return;
// if we re-uploaded mesh data, we need to make sure the shader
// information doesn't get lost.
if (!newme) me.ReplaceShader(shader);
// don't forget to record this new mesh
if(newme) _objectDatabase.RecordObjectMeshRelation(cyclesMesh.MeshId, me);
//RecordShaderRelation(shader, cycles_mesh.MeshId);
curmesh++;
}
}
