ApplyLowResData

cajphrase

Aug 11th, 2024

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C# 4.07 KB | None | 0 0

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private void ApplyLowResData(LOD lod, NativeMesh nativeMesh, Mesh mesh)
{
var parentLod = lod.GetParent(size);
if (!meshCache.TryGetValue(out var parentMesh))
throw new Exception("We should have always generated the parent");
var biomes = new NativeArray<float3>(parentNativeMesh.vertices.Length, Allocator.TempJob);
var weight = new NativeArray<float3>(parentNativeMesh.vertices.Length, Allocator.TempJob);
mesh.GetUVs(1, biomes);
mesh.GetUVs(2, weight);
if (parentMesh == null)
{
// no verts in the parent, set the data to the same as the current position
mesh.SetUVs(3, nativeMesh.vertices);
mesh.SetUVs(4, nativeMesh.normals);
mesh.SetUVs(5, biomes); // mesh should have biome info at this point
mesh.SetUVs(6, weight);
return;
}
var parentNativeMesh = new NativeMesh(parentMesh);
var aabb = parentLod.ToBounds(size);
VoxelBounds parentBounds = new(aabb.Min, aabb.Size, subdivs);
var parentBiom = new NativeArray<float3>(parentNativeMesh.vertices.Length, Allocator.TempJob);
var parentWeig = new NativeArray<float3>(parentNativeMesh.vertices.Length, Allocator.TempJob);
parentMesh.GetUVs(5, parentBiom);
parentMesh.GetUVs(6, parentWeig);
var lrVert = new NativeArray<float3>(nativeMesh.vertices.Length, Allocator.TempJob);
var lrNorm = new NativeArray<float3>(nativeMesh.vertices.Length, Allocator.TempJob);
var lrBiom = new NativeArray<float3>(nativeMesh.vertices.Length, Allocator.TempJob);
var lrWeig = new NativeArray<float3>(nativeMesh.vertices.Length, Allocator.TempJob);
var job = new TransferLowResDataJob()
{
// put all the stuff in here, copilot should do this.
};
job.Run();
mesh.SetUVs(3, lrVert);
mesh.SetUVs(4, lrNorm);
mesh.SetUVs(5, lrBiom);
mesh.SetUVs(6, lrWeig);
biomes.Dispose();
weight.Dispose();
parentNativeMesh.Dispose();
parentBiom.Dispose();
parentWeig.Dispose();
lrVert.Dispose();
lrNorm.Dispose();
lrBiom.Dispose();
lrWeig.Dispose();
}
private struct TransferLowResDataJob : IJob
{
VoxelBounds parentBounds;
[ReadOnly] NativeMesh nativeMesh;
[ReadOnly] NativeArray<float3> biomes;
[ReadOnly] NativeArray<float3> weight;
[ReadOnly] NativeMesh parentNativeMesh;
[ReadOnly] NativeArray<float3> parentBiom;
[ReadOnly] NativeArray<float3> parentWeig;
NativeArray<float3> lrVert;
NativeArray<float3> lrNorm;
NativeArray<float3> lrBiom;
NativeArray<float3> lrWeig;
public void Execute()
{
var lrVertMap = new NativeArray<float3>(parentBounds.TotalCubeCount, Allocator.Temp);
var lrNormMap = new NativeArray<float3>(parentBounds.TotalCubeCount, Allocator.Temp);
var lrBiomMap = new NativeArray<float3>(parentBounds.TotalCubeCount, Allocator.Temp);
var lrWeigMap = new NativeArray<float3>(parentBounds.TotalCubeCount, Allocator.Temp);
for (int i = 0; i < parentNativeMesh.vertices.Length; i++)
{
int3 i3 = Index.PositionToIndex(parentNativeMesh.vertices[i], parentBounds.cellSize, parentBounds.position);
int index = Index.Int3ToFlat(i3, parentBounds.cubeCount);
lrVertMap[index] = parentNativeMesh.vertices[i];
lrNormMap[index] = parentNativeMesh.normals[i];
lrBiomMap[index] = parentBiom[i];
lrWeigMap[index] = parentWeig[i];
}
for (int i = 0; i < nativeMesh.vertices.Length; i++)
{
int3 i3 = Index.PositionToIndex(nativeMesh.vertices[i], parentBounds.cellSize, parentBounds.position);
int index = Index.Int3ToFlat(i3, parentBounds.cubeCount);
var hasData = lrVertMap[i] == default;
lrVert[index] = hasData ? lrVertMap[i] : nativeMesh.vertices[i];
lrNorm[index] = hasData ? lrNormMap[i] : nativeMesh.normals[i];
lrBiom[index] = hasData ? lrBiomMap[i] : biomes[i];
lrWeig[index] = hasData ? lrWeigMap[i] : weight[i];
}
}
}

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