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Neaten up ClipPointToPoly3d

This commit is contained in:
Jarrod Doyle 2024-09-25 17:43:31 +01:00
parent 2c74cc5594
commit 422630c2d9
Signed by: Jayrude
GPG Key ID: 38B57B16E7C0ADF7
1 changed files with 4 additions and 8 deletions
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12
KeepersCompound.Lightmapper/MathUtils.cs
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@ -59,8 +59,7 @@ public static class MathUtils
/// </summary> /// </summary>
public static Vector3 ClipPointToPoly3d(Vector3 point, Vector3[] vertices, Plane projectionPlane) public static Vector3 ClipPointToPoly3d(Vector3 point, Vector3[] vertices, Plane projectionPlane)
{ {
// Shouldn't need to pass 3d. We can just pass the luxel coord, and then we only need the // TODO: Shouldn't need to pass 3d. We can just pass the luxel coord, and then we only need the
var (p2d, v2ds) = LocalPlaneCoords(point, vertices, projectionPlane); var (p2d, v2ds) = LocalPlaneCoords(point, vertices, projectionPlane);
// !HACK: Replace this shit // !HACK: Replace this shit
@ -70,7 +69,6 @@ public static class MathUtils
locX = Vector3.Normalize(locX); locX = Vector3.Normalize(locX);
locY = Vector3.Normalize(locY); locY = Vector3.Normalize(locY);
var inside = true;
for (var i = 0; i < v2ds.Length; i++) for (var i = 0; i < v2ds.Length; i++)
{ {
var a = v2ds[i]; var a = v2ds[i];
@ -81,16 +79,14 @@ public static class MathUtils
var side = Vector2.Dot(norm, offset); var side = Vector2.Dot(norm, offset);
if (side >= -Epsilon) if (side >= -Epsilon)
{ {
// We apply epsilon so that we push slightly into the poly. If we only
// push to the edge then Embree sometimes misses casts. The reason
// it's 2 epsilon is so Side == -Epsilon still gets pushed in properly
p2d -= norm * (side + 2 * Epsilon); p2d -= norm * (side + 2 * Epsilon);
inside = false;
} }
} }
// return p2d;
return origin + p2d.X * locX + p2d.Y * locY; return origin + p2d.X * locX + p2d.Y * locY;
// return Vector3.One;
} }
// TODO: Only do this once per poly // TODO: Only do this once per poly