private static Int32 CreateBrushMesh(Int32 userID,
Vector3[] vertices,
BrushMesh.HalfEdge[] halfEdges,
BrushMesh.Polygon[] polygons)
{
return(BrushMeshManager.CreateBrushMesh(userID, vertices, halfEdges, polygons));
}
private static bool UpdateBrushMesh(Int32 brushMeshID,
Vector3[] vertices,
BrushMesh.HalfEdge[] halfEdges,
BrushMesh.Polygon[] polygons)
{
return(BrushMeshManager.UpdateBrushMesh(brushMeshID, vertices, halfEdges, polygons));
}
internal static void GenerateSurfaceRenderBuffers(int brushNodeID, LoopList loopList)
{
var output = CSGManager.GetBrushOutput(brushNodeID);
var brushInstance = CSGManager.GetBrushMeshID(brushNodeID);
var mesh = BrushMeshManager.GetBrushMesh(brushInstance);
var meshPolygons = mesh.polygons;
var meshSurfaces = mesh.surfaces;
Matrix4x4 worldToLocal = Matrix4x4.identity;
CSGManager.GetTreeToNodeSpaceMatrix(brushNodeID, out worldToLocal);
var outputSurfaces = new CSGSurfaceRenderBuffer[loopList.loops.Count]; // TODO: should be same size as brush.surfaces.Length
int outputSurfaceCount = 0;
foreach (var loop in loopList.loops)
{
var polygonIndex = loop.basePlaneIndex; // TODO: fix this
var meshPolygon = meshPolygons[polygonIndex];
var surfaceIndex = meshPolygon.surfaceID; // TODO: fix this
var localSpaceToPlaneSpace = MathExtensions.GenerateLocalToPlaneSpaceMatrix(meshSurfaces[surfaceIndex].plane);
var uv0Matrix = meshPolygon.description.UV0.ToMatrix() * (localSpaceToPlaneSpace * worldToLocal);
// TODO: all separate loops on same surface should be put in same OutputSurfaceMesh
if (!loop.Triangulate(uv0Matrix, ref outputSurfaces[outputSurfaceCount]))
{
continue;
}
// TODO: make this work
// outputSurfaces[outputSurfaceCount].meshQuery = loop.layers; //???
// outputSurfaces[outputSurfaceCount].surfaceParameter = loop.surfaceParameter; //???
outputSurfaces[outputSurfaceCount].surfaceIndex = surfaceIndex;
outputSurfaceCount++;
}
if (outputSurfaceCount != loopList.loops.Count)
{
Array.Resize(ref outputSurfaces, outputSurfaceCount);
}
output.renderBuffers.surfaceRenderBuffers.AddRange(outputSurfaces);
}
internal static void UpdateOutline(Int32 brushNodeID)
{
var brushInfo = CSGManager.GetBrushInfo(brushNodeID);
var brushMeshInstanceID = CSGManager.GetBrushMeshID(brushNodeID);
if (BrushMeshManager.IsBrushMeshIDValid(brushMeshInstanceID))
{
var brushMesh = BrushMeshManager.GetBrushMesh(brushMeshInstanceID);
brushInfo.brushOutline = CreateOutline(brushMesh);
}
else
{
if (brushInfo.brushOutline == null)
{
brushInfo.brushOutline = new BrushOutline();
}
brushInfo.brushOutline.Reset();
}
}
private static bool IsBrushMeshIDValid(Int32 brushMeshID)
{
return(BrushMeshManager.IsBrushMeshIDValid(brushMeshID));
}
private static bool DestroyBrushMesh(Int32 brushMeshID)
{
return(BrushMeshManager.DestroyBrushMesh(brushMeshID));
}
private static Int32 GetBrushMeshUserID(Int32 brushMeshIndex)
{
return(BrushMeshManager.GetBrushMeshUserID(brushMeshIndex));
}
// TODO: not really CSG yet .. just a hack
// TODO: move somewhere else
internal static LoopList PerformCSG(int brushNodeID, bool mode)
{
var brushNodeIndex = brushNodeID - 1;
var output = CSGManager.GetBrushOutput(brushNodeID);
var outputLoops = output.brushOutputLoops;
var brushInstance = CSGManager.GetBrushMeshID(brushNodeID);
var surfaceLoops = (outputLoops.intersectionLoops == null || outputLoops.intersectionLoops.Count == 0) ? null : outputLoops.intersectionLoops.Values.First(); // temp. Hack
// TODO: get rid of needing mesh here
var mesh = BrushMeshManager.GetBrushMesh(brushInstance);
var meshPolygons = mesh.polygons;
var meshSurfaces = mesh.surfaces;
var loopList = new LoopList(); // TODO: get rid of this somehow
// TODO: separate base loops with holes
// need a seperate set of holes per intersecting brush
for (int p = 0; p < meshPolygons.Length; p++)
{
// TODO: get rid of needing mesh here
var meshPolygon = meshPolygons[p];
var surfaceIndex = meshPolygon.surfaceID;
// Add all holes that share the same plane to the polygon
var holeLoops = (surfaceLoops == null) ? (List <Loop>)null : surfaceLoops.surfaces[surfaceIndex];
// Add all holes that share the same plane to the polygon
if (mode)
{
var loop = outputLoops.basePolygons[p]; // TODO: need to copy this
loopList.loops.Add(loop);
if (holeLoops != null)
{
for (int l = holeLoops.Count - 1; l >= 0; l--)
{
//if (holeLoops[l].basePlaneIndex != loop.basePlaneIndex)
// continue;
// Cut polygons with its holes if they overlap
if (loopList.RemoveFrom(loop, holeLoops[l]))
{
holeLoops.RemoveAt(l);
// lookHierarchies.Add(holeLoops[l]);
continue;
}
//loop.holes.Add(holeLoops[l]);
}
loop.holes.AddRange(holeLoops);
}
}
else
{
if (holeLoops != null)
{
foreach (var hole in holeLoops)
{
hole.interiorCategory = Category.ReverseAligned;
loopList.loops.Add(hole);
}
}
}
}
return(loopList);
}
