Move more meshing to MeshBuilder
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38B57B16E7C0ADF7
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@ -112,142 +112,18 @@ public class LightMapper
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private Mesh BuildMesh()
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private Mesh BuildMesh()
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{
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{
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var meshBuilder = new MeshBuilder();
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// TODO: Should this throw?
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// TODO: Should this throw?
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// TODO: Only do object polys if objcast lighting?
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if (!_mission.TryGetChunk<WorldRep>("WREXT", out var worldRep) ||
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if (!_mission.TryGetChunk<WorldRep>("WREXT", out var worldRep) ||
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!_mission.TryGetChunk<BrList>("BRLIST", out var brList))
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!_mission.TryGetChunk<BrList>("BRLIST", out var brList))
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{
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{
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return new Mesh(0, [], [], []);
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return meshBuilder.Build();
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}
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var meshBuilder = new MeshBuilder();
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var polyVertices = new List<Vector3>();
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// Worldrep mesh
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foreach (var cell in worldRep.Cells)
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{
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var numPolys = cell.PolyCount;
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var numRenderPolys = cell.RenderPolyCount;
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var numPortalPolys = cell.PortalPolyCount;
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// There's nothing to render
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if (numRenderPolys == 0 || numPortalPolys >= numPolys)
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{
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continue;
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}
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var solidPolys = numPolys - numPortalPolys;
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var cellIdxOffset = 0;
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for (var polyIdx = 0; polyIdx < numRenderPolys; polyIdx++)
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{
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var poly = cell.Polys[polyIdx];
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polyVertices.Clear();
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polyVertices.EnsureCapacity(poly.VertexCount);
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for (var i = 0; i < poly.VertexCount; i++)
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{
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polyVertices.Add(cell.Vertices[cell.Indices[cellIdxOffset + i]]);
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}
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// We need to know what type of surface this poly is so we can map Embree primitive IDs to surface
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// types
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var renderPoly = cell.RenderPolys[polyIdx];
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var primType = SurfaceType.Solid;
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if (renderPoly.TextureId == 249)
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{
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primType = SurfaceType.Sky;
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} else if (polyIdx >= solidPolys)
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{
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primType = SurfaceType.Water;
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}
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meshBuilder.AddPolygon(polyVertices, primType);
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cellIdxOffset += poly.VertexCount;
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}
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}
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// Object meshes
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foreach (var brush in brList.Brushes)
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{
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if (brush.media != BrList.Brush.Media.Object)
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{
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continue;
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}
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var id = (int)brush.brushInfo;
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var modelNameProp = _hierarchy.GetProperty<PropLabel>(id, "P$ModelName");
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var scaleProp = _hierarchy.GetProperty<PropVector>(id, "P$Scale");
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var renderTypeProp = _hierarchy.GetProperty<PropRenderType>(id, "P$RenderTyp");
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var jointPosProp = _hierarchy.GetProperty<PropJointPos>(id, "P$JointPos");
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var immobileProp = _hierarchy.GetProperty<PropBool>(id, "P$Immobile");
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var staticShadowProp = _hierarchy.GetProperty<PropBool>(id, "P$StatShad");
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var joints = jointPosProp?.Positions ?? [0, 0, 0, 0, 0, 0];
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var castsShadows = (immobileProp?.value ?? false) || (staticShadowProp?.value ?? false);
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var renderMode = renderTypeProp?.mode ?? PropRenderType.Mode.Normal;
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// TODO: Check which rendermodes cast shadows :)
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if (modelNameProp == null || !castsShadows || renderMode == PropRenderType.Mode.CoronaOnly)
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{
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continue;
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}
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// Let's try and place an object :)
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var modelName = modelNameProp.value.ToLower() + ".bin";
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var modelPath = _campaign.GetResourcePath(ResourceType.Object, modelName);
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if (modelPath == null)
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{
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continue;
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}
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// TODO: Handle failing to find model more gracefully
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var pos = brush.position;
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var rot = brush.angle;
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var scale = scaleProp?.value ?? Vector3.One;
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var model = new ModelFile(modelPath);
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pos -= model.Header.Center;
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// for each object modify the vertices
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// TODO: Almost perfect transform!
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// TODO: Handle nested sub objects
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foreach (var subObj in model.Objects)
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{
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var jointTrans = Matrix4x4.Identity;
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if (subObj.Joint != -1)
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{
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var ang = float.DegreesToRadians(joints[subObj.Joint]);
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var jointRot = Matrix4x4.CreateFromYawPitchRoll(0, ang, 0);
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var objTrans = subObj.Transform;
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jointTrans = jointRot * objTrans;
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}
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var scalePart = Matrix4x4.CreateScale(scale);
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var rotPart = Matrix4x4.CreateFromYawPitchRoll(float.DegreesToRadians(rot.Y), float.DegreesToRadians(rot.X),
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float.DegreesToRadians(rot.Z));
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var transPart = Matrix4x4.CreateTranslation(pos);
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var transform = jointTrans * scalePart * rotPart * transPart;
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var start = subObj.PointIdx;
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var end = start + subObj.PointCount;
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for (var i = start; i < end; i++)
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{
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var v = model.Vertices[i];
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model.Vertices[i] = Vector3.Transform(v, transform);
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}
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}
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// for each polygon slam its vertices and indices :)
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foreach (var poly in model.Polygons)
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{
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polyVertices.Clear();
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polyVertices.EnsureCapacity(poly.VertexCount);
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foreach (var idx in poly.VertexIndices)
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{
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polyVertices.Add(model.Vertices[idx]);
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}
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meshBuilder.AddPolygon(polyVertices, SurfaceType.Solid);
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}
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}
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}
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meshBuilder.AddWorldRepPolys(worldRep);
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meshBuilder.AddObjectPolys(brList, _hierarchy, _campaign);
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return meshBuilder.Build();
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return meshBuilder.Build();
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}
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}
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@ -1,4 +1,7 @@
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using System.Numerics;
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using System.Numerics;
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using KeepersCompound.LGS;
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using KeepersCompound.LGS.Database;
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using KeepersCompound.LGS.Database.Chunks;
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namespace KeepersCompound.Lightmapper;
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namespace KeepersCompound.Lightmapper;
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@ -24,7 +27,141 @@ public class MeshBuilder
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private readonly List<int> _indices = [];
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private readonly List<int> _indices = [];
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private readonly List<SurfaceType> _primSurfaceMap = [];
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private readonly List<SurfaceType> _primSurfaceMap = [];
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public void AddPolygon(List<Vector3> vertices, SurfaceType surfaceType)
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public void AddWorldRepPolys(WorldRep worldRep)
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{
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var polyVertices = new List<Vector3>();
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foreach (var cell in worldRep.Cells)
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{
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var numPolys = cell.PolyCount;
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var numRenderPolys = cell.RenderPolyCount;
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var numPortalPolys = cell.PortalPolyCount;
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// There's nothing to render
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if (numRenderPolys == 0 || numPortalPolys >= numPolys)
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{
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continue;
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}
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var solidPolys = numPolys - numPortalPolys;
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var cellIdxOffset = 0;
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for (var polyIdx = 0; polyIdx < numRenderPolys; polyIdx++)
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{
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var poly = cell.Polys[polyIdx];
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polyVertices.Clear();
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polyVertices.EnsureCapacity(poly.VertexCount);
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for (var i = 0; i < poly.VertexCount; i++)
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{
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polyVertices.Add(cell.Vertices[cell.Indices[cellIdxOffset + i]]);
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}
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// We need to know what type of surface this poly is so we can map Embree primitive IDs to surface
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// types
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var renderPoly = cell.RenderPolys[polyIdx];
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var primType = SurfaceType.Solid;
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if (renderPoly.TextureId == 249)
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{
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primType = SurfaceType.Sky;
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} else if (polyIdx >= solidPolys)
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{
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primType = SurfaceType.Water;
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}
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AddPolygon(polyVertices, primType);
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cellIdxOffset += poly.VertexCount;
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}
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}
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}
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public void AddObjectPolys(
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BrList brushList,
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ObjectHierarchy hierarchy,
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ResourcePathManager.CampaignResources campaignResources)
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{
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var polyVertices = new List<Vector3>();
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foreach (var brush in brushList.Brushes)
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{
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if (brush.media != BrList.Brush.Media.Object)
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{
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continue;
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}
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var id = (int)brush.brushInfo;
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var modelNameProp = hierarchy.GetProperty<PropLabel>(id, "P$ModelName");
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var scaleProp = hierarchy.GetProperty<PropVector>(id, "P$Scale");
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var renderTypeProp = hierarchy.GetProperty<PropRenderType>(id, "P$RenderTyp");
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var jointPosProp = hierarchy.GetProperty<PropJointPos>(id, "P$JointPos");
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var immobileProp = hierarchy.GetProperty<PropBool>(id, "P$Immobile");
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var staticShadowProp = hierarchy.GetProperty<PropBool>(id, "P$StatShad");
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var joints = jointPosProp?.Positions ?? [0, 0, 0, 0, 0, 0];
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var castsShadows = (immobileProp?.value ?? false) || (staticShadowProp?.value ?? false);
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var renderMode = renderTypeProp?.mode ?? PropRenderType.Mode.Normal;
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// TODO: Check which rendermodes cast shadows :)
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if (modelNameProp == null || !castsShadows || renderMode == PropRenderType.Mode.CoronaOnly)
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{
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continue;
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}
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// Let's try and place an object :)
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var modelName = modelNameProp.value.ToLower() + ".bin";
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var modelPath = campaignResources.GetResourcePath(ResourceType.Object, modelName);
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if (modelPath == null)
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{
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continue;
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}
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// TODO: Handle failing to find model more gracefully
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var pos = brush.position;
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var rot = brush.angle;
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var scale = scaleProp?.value ?? Vector3.One;
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var model = new ModelFile(modelPath);
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pos -= model.Header.Center;
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// for each object modify the vertices
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// TODO: Almost perfect transform!
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// TODO: Handle nested sub objects
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foreach (var subObj in model.Objects)
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{
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var jointTrans = Matrix4x4.Identity;
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if (subObj.Joint != -1)
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{
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var ang = float.DegreesToRadians(joints[subObj.Joint]);
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var jointRot = Matrix4x4.CreateFromYawPitchRoll(0, ang, 0);
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var objTrans = subObj.Transform;
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jointTrans = jointRot * objTrans;
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}
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var scalePart = Matrix4x4.CreateScale(scale);
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var rotPart = Matrix4x4.CreateFromYawPitchRoll(float.DegreesToRadians(rot.Y), float.DegreesToRadians(rot.X),
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float.DegreesToRadians(rot.Z));
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var transPart = Matrix4x4.CreateTranslation(pos);
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var transform = jointTrans * scalePart * rotPart * transPart;
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var start = subObj.PointIdx;
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var end = start + subObj.PointCount;
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for (var i = start; i < end; i++)
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{
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var v = model.Vertices[i];
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model.Vertices[i] = Vector3.Transform(v, transform);
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}
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}
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// for each polygon slam its vertices and indices :)
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foreach (var poly in model.Polygons)
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{
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polyVertices.Clear();
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polyVertices.EnsureCapacity(poly.VertexCount);
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foreach (var idx in poly.VertexIndices)
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{
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polyVertices.Add(model.Vertices[idx]);
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}
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AddPolygon(polyVertices, SurfaceType.Solid);
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}
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}
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}
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private void AddPolygon(List<Vector3> vertices, SurfaceType surfaceType)
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{
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{
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var vertexCount = vertices.Count;
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var vertexCount = vertices.Count;
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var indexOffset = _vertices.Count;
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var indexOffset = _vertices.Count;
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