/// <summary>
/// Crear vertices para la cara Up
/// </summary>
private void cargarVerticesUp(GraphicsStream data, int color)
{
TgcSceneLoader.DiffuseMapVertex v;
Vector3 n = new Vector3(0, 1, 0);
v = new TgcSceneLoader.DiffuseMapVertex();
v.Position = new Vector3(
center.X - size.X / 2 - skyEpsilon,
center.Y + size.Y / 2,
center.Z - size.Z / 2 - skyEpsilon
);
v.Normal = n;
v.Color = color;
v.Tu = 1;
v.Tv = 0;
data.Write(v);
v = new TgcSceneLoader.DiffuseMapVertex();
v.Position = new Vector3(
center.X - size.X / 2 - skyEpsilon,
center.Y + size.Y / 2,
center.Z + size.Z / 2 + skyEpsilon
);
v.Normal = n;
v.Color = color;
v.Tu = 0;
v.Tv = 0;
data.Write(v);
v = new TgcSceneLoader.DiffuseMapVertex();
v.Position = new Vector3(
center.X + size.X / 2 + skyEpsilon,
center.Y + size.Y / 2,
center.Z + size.Z / 2 + skyEpsilon
);
v.Normal = n;
v.Color = color;
v.Tu = 0;
v.Tv = 1;
data.Write(v);
v = new TgcSceneLoader.DiffuseMapVertex();
v.Position = new Vector3(
center.X + size.X / 2 + skyEpsilon,
center.Y + size.Y / 2,
center.Z - size.Z / 2 - skyEpsilon
);
v.Normal = n;
v.Color = color;
v.Tu = 1;
v.Tv = 1;
data.Write(v);
}
/// <summary>
/// Une dos meshes en uno solo.
/// Crea un nuevo mesh con un merge de los dos. Toma el nombre, layer, userProperties, etc del primer mesh.
/// No se hace dispose de los dos meshes originales.
/// Ambos mesh tienen que ser del mismo RenderType.
/// No se puede hacer merge de un mesh con Lightmap
/// </summary>
/// <param name="mesh1">Primer mesh</param>
/// <param name="mesh2">Segundo mesh</param>
/// <returns>Nueve mesh con el merge de los dos</returns>
public TgcMesh mergeTwoMeshes(TgcMesh mesh1, TgcMesh mesh2)
{
//Chequear que sea mismo tipo de malla
if (mesh1.RenderType != mesh2.RenderType)
{
throw new Exception("Se intentó juntar dos Mallas de formato distintos: " + mesh1.Name + " y " + mesh2.Name);
}
//Por ahora no se pueden unificar LightMaps
if (mesh1.RenderType == TgcMesh.MeshRenderType.DIFFUSE_MAP_AND_LIGHTMAP)
{
throw new Exception("Actualmente no esta soportado juntar dos Mallas que tienen LightMaps: " + mesh1.Name + " y " + mesh2.Name);
}
//Crear Mesh de D3D
int triCount = mesh1.NumberTriangles + mesh2.NumberTriangles;
int vertexCount = mesh1.NumberVertices + mesh2.NumberVertices;
VertexElement[] vertexElements = mesh1.RenderType == TgcMesh.MeshRenderType.VERTEX_COLOR ? TgcSceneLoader.VertexColorVertexElements : TgcSceneLoader.DiffuseMapVertexElements;
Mesh mesh = new Mesh(triCount, vertexCount, MeshFlags.Managed, vertexElements, GuiController.Instance.D3dDevice);
//VertexColor
if (mesh1.RenderType == TgcMesh.MeshRenderType.VERTEX_COLOR)
{
//Cargar VertexBuffer
TgcSceneLoader.VertexColorVertex[] vertsData = new TgcSceneLoader.VertexColorVertex[vertexCount];
//Agregar los datos del mesh1
TgcSceneLoader.VertexColorVertex[] verts1 = (TgcSceneLoader.VertexColorVertex[])mesh1.D3dMesh.LockVertexBuffer(
typeof(TgcSceneLoader.VertexColorVertex), LockFlags.ReadOnly, mesh1.D3dMesh.NumberVertices);
for (int i = 0; i < verts1.Length; i++)
{
verts1[i].Position = TgcVectorUtils.transform(verts1[i].Position, mesh1.Transform);
}
Array.Copy(verts1, vertsData, verts1.Length);
mesh1.D3dMesh.UnlockVertexBuffer();
verts1 = null;
//Agregar los datos del mesh1
TgcSceneLoader.VertexColorVertex[] verts2 = (TgcSceneLoader.VertexColorVertex[])mesh2.D3dMesh.LockVertexBuffer(
typeof(TgcSceneLoader.VertexColorVertex), LockFlags.ReadOnly, mesh2.D3dMesh.NumberVertices);
for (int i = 0; i < verts2.Length; i++)
{
verts2[i].Position = TgcVectorUtils.transform(verts2[i].Position, mesh2.Transform);
}
Array.Copy(verts2, 0, vertsData, mesh1.NumberVertices, verts2.Length);
mesh2.D3dMesh.UnlockVertexBuffer();
verts2 = null;
mesh.SetVertexBufferData(vertsData, LockFlags.None);
}
//DiffuseMap
else if (mesh1.RenderType == TgcMesh.MeshRenderType.DIFFUSE_MAP)
{
//Cargar VertexBuffer
TgcSceneLoader.DiffuseMapVertex[] vertsData = new TgcSceneLoader.DiffuseMapVertex[vertexCount];
//Agregar los datos del mesh1 (aplicarle la transformacion actual)
TgcSceneLoader.DiffuseMapVertex[] verts1 = (TgcSceneLoader.DiffuseMapVertex[])mesh1.D3dMesh.LockVertexBuffer(
typeof(TgcSceneLoader.DiffuseMapVertex), LockFlags.ReadOnly, mesh1.D3dMesh.NumberVertices);
for (int i = 0; i < verts1.Length; i++)
{
verts1[i].Position = TgcVectorUtils.transform(verts1[i].Position, mesh1.Transform);
}
Array.Copy(verts1, vertsData, verts1.Length);
mesh1.D3dMesh.UnlockVertexBuffer();
verts1 = null;
//Agregar los datos del mesh1
TgcSceneLoader.DiffuseMapVertex[] verts2 = (TgcSceneLoader.DiffuseMapVertex[])mesh2.D3dMesh.LockVertexBuffer(
typeof(TgcSceneLoader.DiffuseMapVertex), LockFlags.ReadOnly, mesh2.D3dMesh.NumberVertices);
for (int i = 0; i < verts2.Length; i++)
{
verts2[i].Position = TgcVectorUtils.transform(verts2[i].Position, mesh2.Transform);
}
Array.Copy(verts2, 0, vertsData, mesh1.NumberVertices, verts2.Length);
mesh2.D3dMesh.UnlockVertexBuffer();
verts2 = null;
mesh.SetVertexBufferData(vertsData, LockFlags.None);
}
//Cargar indexBuffer en forma plana
using (IndexBuffer ib = mesh.IndexBuffer)
{
short[] indices = new short[vertexCount];
for (int i = 0; i < indices.Length; i++)
{
indices[i] = (short)i;
}
ib.SetData(indices, 0, LockFlags.None);
}
//Cargar texturas y attributeBuffer
TgcTexture[] textures = null;
Material[] materials = null;
if (mesh1.RenderType == TgcMesh.MeshRenderType.DIFFUSE_MAP)
{
//Cargar materials
materials = new Material[mesh1.DiffuseMaps.Length + mesh2.DiffuseMaps.Length];
int mIdx = 0;
foreach (Material m in mesh1.Materials)
{
materials[mIdx++] = m;
}
foreach (Material m in mesh2.Materials)
{
materials[mIdx++] = m;
}
//Texturas del mesh1
textures = new TgcTexture[mesh1.DiffuseMaps.Length + mesh2.DiffuseMaps.Length];
int tIdx = 0;
foreach (TgcTexture t in mesh1.DiffuseMaps)
{
textures[tIdx++] = t.clone();
}
//Texturas del mesh2
foreach (TgcTexture t in mesh2.DiffuseMaps)
{
textures[tIdx++] = t.clone();
}
//Cargar el AttributeBuffer con la suma de ambos mesh
int attIdx = 0;
int textureId = 0;
int[] attributeBuffer = mesh.LockAttributeBufferArray(LockFlags.None);
//AttributeBuffer del mesh 1
if (mesh1.DiffuseMaps.Length > 1)
{
//Copiar el AttributeBuffer del mesh1 tal cual al mesh unificado
int[] attributeBuffer1 = mesh1.D3dMesh.LockAttributeBufferArray(LockFlags.ReadOnly);
Array.Copy(attributeBuffer1, attributeBuffer, attributeBuffer1.Length);
mesh1.D3dMesh.UnlockAttributeBuffer(attributeBuffer1);
}
else
{
//Hay una sola textura, llenar el AttributeBuffer para que apunte solo a esa textura
for (int i = 0; i < mesh1.NumberTriangles; i++)
{
attributeBuffer[i] = textureId;
}
}
attIdx += mesh1.NumberTriangles;
textureId += mesh1.DiffuseMaps.Length;
//AttributeBuffer del mesh 2
if (mesh2.DiffuseMaps.Length > 1)
{
//Copiar el AttributeBuffer del mesh2 al mesh unificado pero sumando el offset de texturas del primero
int[] attributeBuffer2 = mesh2.D3dMesh.LockAttributeBufferArray(LockFlags.ReadOnly);
int[] attributeBuffer2Offset = new int[attributeBuffer2.Length];
for (int i = 0; i < attributeBuffer2.Length; i++)
{
attributeBuffer2Offset[i] = attributeBuffer2[i] + textureId;
}
mesh2.D3dMesh.UnlockAttributeBuffer(attributeBuffer2);
Array.Copy(attributeBuffer2Offset, 0, attributeBuffer, attIdx, attributeBuffer2Offset.Length);
attributeBuffer2Offset = null;
}
else
{
//Hay una sola textura, llenar el AttributeBuffer para que apunte solo a esa textura
for (int i = 0; i < mesh2.NumberTriangles; i++)
{
attributeBuffer[attIdx++] = textureId;
}
textureId++;
}
mesh.UnlockAttributeBuffer(attributeBuffer);
}
//Crear mesh de TGC
TgcMesh tgcMesh = new TgcMesh(mesh, mesh1.Name, mesh1.RenderType);
tgcMesh.Layer = mesh1.Layer;
tgcMesh.createBoundingBox();
tgcMesh.Materials = materials;
tgcMesh.DiffuseMaps = textures;
tgcMesh.AlphaBlendEnable = mesh1.AlphaBlendEnable;
tgcMesh.Enabled = mesh1.Enabled;
//Transformaciones con la identidad (porque ya transformamos los vertices)
tgcMesh.Position = new Vector3(0, 0, 0);
tgcMesh.Rotation = new Vector3(0, 0, 0);
tgcMesh.Scale = new Vector3(1, 1, 1);
tgcMesh.Transform = Matrix.Identity;
tgcMesh.AutoTransformEnable = mesh1.AutoTransformEnable;
//Agregar userProperties de ambos
if (mesh1.UserProperties != null || mesh2.UserProperties != null)
{
tgcMesh.UserProperties = new Dictionary<string, string>();
if (mesh1.UserProperties != null)
{
foreach (KeyValuePair<string, string> entry in mesh1.UserProperties)
{
tgcMesh.UserProperties.Add(entry.Key, entry.Value);
}
}
if (mesh2.UserProperties != null)
{
foreach (KeyValuePair<string, string> entry in mesh2.UserProperties)
{
tgcMesh.UserProperties.Add(entry.Key, entry.Value);
}
}
}
return tgcMesh;
}