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* Add a copy constructor to IRendering.SimpleMesh

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[Simian]
* Avoid remeshing whenever possible by reverting back to using the untransformed mesh for the world mesh generation
* Add forceMeshing and forceTransform booleans to SimulationObject to specify when a new untransformed mesh needs to be generated and when the transformation needs to be reapplied

git-svn-id: http://libopenmetaverse.googlecode.com/svn/libopenmetaverse/trunk@2477 52acb1d6-8a22-11de-b505-999d5b087335
This commit is contained in:
John Hurliman
2009-03-09 18:20:19 +00:00
parent 7e0529d58d
commit 692d2927a9
9 changed files with 63 additions and 40 deletions
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23
Programs/Simian/SimulationObject.cs
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@@ -171,13 +171,13 @@ namespace Simian
UndoSteps.Enqueue(new Primitive(Prim));
}
public SimpleMesh GetMesh(DetailLevel lod)
public SimpleMesh GetMesh(DetailLevel lod, bool forceMeshing)
{
int i = (int)lod;
if (Meshes == null) Meshes = new SimpleMesh[4];
if (Meshes[i] != null)
if (!forceMeshing && Meshes[i] != null)
{
return Meshes[i];
}
@@ -189,21 +189,24 @@ namespace Simian
}
}
public SimpleMesh GetWorldMesh(DetailLevel lod, bool forceRebuild)
public SimpleMesh GetWorldMesh(DetailLevel lod, bool forceMeshing, bool forceTransform)
{
int i = (int)lod;
if (WorldTransformedMeshes == null)
WorldTransformedMeshes = new SimpleMesh[4];
if (!forceRebuild && WorldTransformedMeshes[i] != null)
if (!forceMeshing && !forceTransform && WorldTransformedMeshes[i] != null)
{
return WorldTransformedMeshes[i];
}
else
{
// Get the untransformed mesh
SimpleMesh mesh = Server.Mesher.GenerateSimpleMesh(Prim, lod);
SimpleMesh mesh = GetMesh(lod, forceMeshing);
// Copy to our new mesh
SimpleMesh transformedMesh = new SimpleMesh(mesh);
// Construct a matrix to transform to world space
Matrix4 transform = Matrix4.Identity;
@@ -221,15 +224,15 @@ namespace Simian
transform *= Matrix4.CreateTranslation(Prim.Position);
// Transform the mesh
for (int j = 0; j < mesh.Vertices.Count; j++)
for (int j = 0; j < transformedMesh.Vertices.Count; j++)
{
Vertex vertex = mesh.Vertices[j];
Vertex vertex = transformedMesh.Vertices[j];
vertex.Position *= transform;
mesh.Vertices[j] = vertex;
transformedMesh.Vertices[j] = vertex;
}
WorldTransformedMeshes[i] = mesh;
return mesh;
WorldTransformedMeshes[i] = transformedMesh;
return transformedMesh;
}
}