public unsafe bool CastRay <T>(RaycastInput input, ref T collector) where T : struct, ICollector <RaycastHit>
{
fixed(TerrainCollider *target = &this)
{
return(RaycastQueries.RayCollider(input, (Collider *)target, ref collector));
}
}
public void RayVsTriangle()
{
// triangle
var v1 = new float3(-1, -1, 0);
var v2 = new float3(0, 1, 0);
var v3 = new float3(1, -1, 0);
{
var origin = new float3(0, 0, -2);
var direction = new float3(0, 0, 4);
float fraction = 1;
bool hit = RaycastQueries.RayTriangle(origin, direction, v1, v2, v3, ref fraction, out float3 normal);
Assert.IsTrue(hit);
Assert.IsTrue(fraction == 0.5);
}
{
var origin = new float3(0, 0, 2);
var direction = new float3(0, 0, -4);
float fraction = 1;
bool hit = RaycastQueries.RayTriangle(origin, direction, v1, v2, v3, ref fraction, out float3 normal);
Assert.IsTrue(hit);
Assert.IsTrue(fraction == 0.5);
}
{
var origin = new float3(1, -1, -2);
var direction = new float3(0, 0, 4);
float fraction = 1;
bool hit = RaycastQueries.RayTriangle(origin, direction, v1, v2, v3, ref fraction, out float3 normal);
Assert.IsTrue(hit);
Assert.IsTrue(fraction == 0.5);
}
{
var origin = new float3(2, 0, -2);
var direction = new float3(0, 0, 4);
float fraction = 1;
bool hit = RaycastQueries.RayTriangle(origin, direction, v1, v2, v3, ref fraction, out float3 normal);
Assert.IsFalse(hit);
}
{
var origin = new float3(2, 0, -2);
var direction = new float3(0, 0, -4);
float fraction = 1;
bool hit = RaycastQueries.RayTriangle(origin, direction, v1, v2, v3, ref fraction, out float3 normal);
Assert.IsFalse(hit);
Assert.IsTrue(math.all(normal == new float3(0, 0, 0)));
}
{
v1 = new float3(-4, 0, 0);
v2 = new float3(-5, 0, -1);
v3 = new float3(-4, 0, -1);
var origin = new float3(-4.497f, 0.325f, -0.613f);
var direction = new float3(0f, -10f, 0f);
float fraction = 1;
bool hit = RaycastQueries.RayTriangle(origin, direction, v1, v2, v3, ref fraction, out float3 normal);
Assert.IsTrue(hit);
}
}
