tie fighter

1 files changed, 0 insertions, 72 deletions

diff --git a/intersect.cu b/intersect.cu
deleted file mode 100644
index d7fdaa5..0000000
--- a/intersect.cu
+++ /dev/null
@@ -1,72 +0,0 @@
-//-*-c-*-
-
-__device__ __host__ Matrix inv(const Matrix&m, float& determinant)
-{
-	determinant = det(m);
-
-	return make_matrix(m.a11*m.a22 - m.a12*m.a21,
-			   m.a02*m.a21 - m.a01*m.a22,
-			   m.a01*m.a12 - m.a02*m.a11,
-			   m.a12*m.a20 - m.a10*m.a22,
-			   m.a00*m.a22 - m.a02*m.a20,
-			   m.a02*m.a10 - m.a00*m.a12,
-			   m.a10*m.a21 - m.a11*m.a20,
-			   m.a01*m.a20 - m.a00*m.a21,
-			   m.a00*m.a11 - m.a01*m.a10)/determinant;
-}
-
-__device__ bool intersect_triangle(const float3 &x, const float3 &p, float3 *vertex, float3 &intersection)
-{
-	float determinant;
-
-	float3 u = inv(make_matrix(vertex[0]-vertex[2],vertex[1]-vertex[2],-p), determinant)*(x-vertex[2]);
-
-	if (determinant == 0.0)
-		return false;
-
-	if (u.x < 0.0 || u.y < 0.0 || u.z < 0.0 || (1-u.x-u.y) < 0.0)
-		return false;
-
-	intersection = x + p*u.z;
-
-	return true;
-}
-
-extern "C"
-{
-
-__global__ void intersect_triangle_mesh(float3 *x, float3 *p, int n, float3 *mesh, int *state, float3 *w)
-{
-	int idx = blockIdx.x*blockDim.x + threadIdx.x;
-
-	bool hit = false;
-
-	float distance, min_distance;
-	float3 intersection, min_intersection;
-
-	int i;
-	for (i=0; i < n; i++)
-	{
-		if (intersect_triangle(x[idx], p[idx], mesh+3*i, intersection))
-		{
-			if (!hit)
-			{
-				state[idx] = 1;
-				min_distance = norm(intersection-x[idx]);
-				min_intersection = intersection;
-				continue;
-			}
-
-			distance = norm(w[idx]-x[idx]);
-
-			if (distance < min_distance)
-			{
-				state[idx] = 1;
-				min_distance = distance;
-				min_intersection = intersection;
-			}
-		}
-	}
-}
-
-} // extern "c"