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abstract frustum culling

instancing
cosmonaut 2020-12-06 19:36:00 -08:00
parent fc09082f1b
commit 7f986c546a
4 changed files with 23 additions and 29 deletions
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9
Geometry/Interfaces/ICullable.cs Normal file
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@ -0,0 +1,9 @@
using Microsoft.Xna.Framework;
namespace Kav
{
public interface ICullable
{
BoundingBox BoundingBox { get; }
}
}

2
Geometry/MeshSprite.cs
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@ -4,7 +4,7 @@ using Microsoft.Xna.Framework.Graphics;
namespace Kav
{
public class MeshSprite
public class MeshSprite : ICullable
{
private static readonly int PixelScale = 40;
private static readonly short[] Indices = new short[]

2
Geometry/Model.cs
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@ -2,7 +2,7 @@ using Microsoft.Xna.Framework;
namespace Kav
{
public class Model
public class Model : ICullable
{
public Mesh[] Meshes { get; }
public BoundingBox BoundingBox { get; }

27
Renderer.cs
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@ -836,32 +836,17 @@ namespace Kav
}
}
private static IEnumerable<(Model, Matrix)> FrustumCull(
private static IEnumerable<(T, Matrix)> FrustumCull<T>(
BoundingFrustum boundingFrustum,
IEnumerable<(Model, Matrix)> modelTransforms
) {
foreach (var modelTransform in modelTransforms)
IEnumerable<(T, Matrix)> cullableTransforms
) where T : ICullable {
foreach (var (cullable, transform) in cullableTransforms)
{
var boundingBox = TransformedBoundingBox(modelTransform.Item1.BoundingBox, modelTransform.Item2);
var boundingBox = TransformedBoundingBox(cullable.BoundingBox, transform);
var containment = boundingFrustum.Contains(boundingBox);
if (containment != ContainmentType.Disjoint)
{
yield return modelTransform;
}
}
}
private static IEnumerable<(MeshSprite, Matrix)> FrustumCull(
BoundingFrustum boundingFrustum,
IEnumerable<(MeshSprite, Matrix)> meshSpriteTransforms
) {
foreach (var (meshSprite, transform) in meshSpriteTransforms)
{
var boundingBox = TransformedBoundingBox(meshSprite.BoundingBox, transform);
var containment = boundingFrustum.Contains(boundingBox);
if (containment != ContainmentType.Disjoint)
{
yield return (meshSprite, transform);
yield return (cullable, transform);
}
}
}