public IGeometryModel ReadGeometry(int lod)
{
if (lod < 0 || lod >= ((IRenderGeometry)this).LodCount)
{
throw new ArgumentOutOfRangeException(nameof(lod));
}
var model = new GeometryModel(Name)
{
CoordinateSystem = CoordinateSystem.Default
};
model.Nodes.AddRange(Nodes);
model.MarkerGroups.AddRange(MarkerGroups);
model.Bounds.AddRange(BoundingBoxes);
model.Materials.AddRange(HaloReachCommon.GetMaterials(Shaders));
foreach (var region in Regions)
{
var gRegion = new GeometryRegion {
SourceIndex = Regions.IndexOf(region), Name = region.Name
};
gRegion.Permutations.AddRange(region.Permutations.Where(p => p.SectionIndex >= 0).Select(p =>
new GeometryPermutation
{
SourceIndex = region.Permutations.IndexOf(p),
Name = p.Name,
MeshIndex = p.SectionIndex,
MeshCount = 1
}));
if (gRegion.Permutations.Any())
{
model.Regions.Add(gRegion);
}
}
Func <int, int, int> mapNodeFunc = null;
if (Flags.HasFlag(ModelFlags.UseLocalNodes))
{
mapNodeFunc = (si, i) => NodeMaps[si].Indices[i];
}
model.Meshes.AddRange(HaloReachCommon.GetMeshes(cache, ResourcePointer, Sections, (s, m) => m.BoundsIndex = 0, mapNodeFunc));
CreateInstanceMeshes(model);
return(model);
}
public IGeometryModel ReadGeometry(int lod)
{
if (lod < 0 || lod >= ((IRenderGeometry)this).LodCount)
{
throw new ArgumentOutOfRangeException(nameof(lod));
}
var scenario = cache.TagIndex.GetGlobalTag("scnr").ReadMetadata <scenario>();
var model = new GeometryModel(item.FileName())
{
CoordinateSystem = CoordinateSystem.Default
};
var bspBlock = scenario.StructureBsps.First(s => s.BspReference.TagId == item.Id);
var bspIndex = scenario.StructureBsps.IndexOf(bspBlock);
var lightmap = scenario.ScenarioLightmapReference.Tag.ReadMetadata <scenario_lightmap>();
var lightmapData = lightmap.LightmapRefs[bspIndex].LightmapDataReference.Tag.ReadMetadata <scenario_lightmap_bsp_data>();
model.Bounds.AddRange(BoundingBoxes);
model.Materials.AddRange(HaloReachCommon.GetMaterials(Shaders));
var clusterRegion = new GeometryRegion {
Name = "Clusters"
};
clusterRegion.Permutations.AddRange(
Clusters.Select((c, i) => new GeometryPermutation
{
SourceIndex = i,
Name = Clusters.IndexOf(c).ToString("D3", CultureInfo.CurrentCulture),
MeshIndex = c.SectionIndex,
MeshCount = 1
})
);
model.Regions.Add(clusterRegion);
if (cache.CacheType >= CacheType.HaloReachRetail && !loadedInstances)
{
var resourceGestalt = cache.TagIndex.GetGlobalTag("zone").ReadMetadata <cache_file_resource_gestalt>();
var entry = resourceGestalt.ResourceEntries[InstancesResourcePointer.ResourceIndex];
var address = entry.FixupOffset + entry.ResourceFixups[entry.ResourceFixups.Count - 10].Offset & 0x0FFFFFFF;
using (var cacheReader = cache.CreateReader(cache.DefaultAddressTranslator))
using (var reader = cacheReader.CreateVirtualReader(resourceGestalt.FixupDataPointer.Address))
{
for (int i = 0; i < GeometryInstances.Count; i++)
{
reader.Seek(address + 156 * i, SeekOrigin.Begin);
GeometryInstances[i].TransformScale = reader.ReadSingle();
GeometryInstances[i].Transform = reader.ReadObject <Matrix4x4>();
reader.Seek(6, SeekOrigin.Current);
GeometryInstances[i].SectionIndex = reader.ReadInt16();
}
}
loadedInstances = true;
}
foreach (var instanceGroup in GeometryInstances.GroupBy(i => i.SectionIndex))
{
var section = lightmapData.Sections[instanceGroup.Key];
var sectionRegion = new GeometryRegion {
Name = Utils.CurrentCulture($"Instances {instanceGroup.Key:D3}")
};
sectionRegion.Permutations.AddRange(
instanceGroup.Select(i => new GeometryPermutation
{
SourceIndex = GeometryInstances.IndexOf(i),
Name = i.Name,
Transform = i.Transform,
TransformScale = i.TransformScale,
MeshIndex = i.SectionIndex,
MeshCount = 1
})
);
model.Regions.Add(sectionRegion);
}
model.Meshes.AddRange(HaloReachCommon.GetMeshes(cache, lightmapData.ResourcePointer, lightmapData.Sections, (s, m) =>
{
var index = (short)lightmapData.Sections.IndexOf(s);
m.BoundsIndex = index >= BoundingBoxes.Count ? (short?)null : index;
m.IsInstancing = index < BoundingBoxes.Count;
}));
return(model);
}