Addition of SDFGI for open world global illumination

Move GI to a deferred pass

3 files changed, 13 insertions, 1 deletions

diff --git a/core/math/basis.cpp b/core/math/basis.cpp
index df5199b0f9..dd38e25bb1 100644
--- a/core/math/basis.cpp
+++ b/core/math/basis.cpp
@@ -773,7 +773,7 @@ Basis::operator String() const {
 				mtx += ", ";
 			}
 
-			mtx += rtos(elements[i][j]);
+			mtx += rtos(elements[j][i]); //matrix is stored transposed for performance, so print it transposed
 		}
 	}
 
diff --git a/core/math/geometry_3d.cpp b/core/math/geometry_3d.cpp
index 7eef94c269..7807ab19a7 100644
--- a/core/math/geometry_3d.cpp
+++ b/core/math/geometry_3d.cpp
@@ -993,6 +993,8 @@ Vector<uint32_t> Geometry3D::generate_edf(const Vector<bool> &p_voxels, const Ve
 		}
 	}
 
+	memdelete_arr(work_memory);
+
 	return ret;
 }
 
diff --git a/core/math/geometry_3d.h b/core/math/geometry_3d.h
index 64cd34892e..6bbf518141 100644
--- a/core/math/geometry_3d.h
+++ b/core/math/geometry_3d.h
@@ -945,6 +945,16 @@ public:
 		return Color(va6 * v6, vb6 * v6, vc6 * v6, vd6 * v6);
 #undef STP
 	}
+
+	_FORCE_INLINE_ static Vector3 octahedron_map_decode(const Vector2 &p_uv) {
+		// https://twitter.com/Stubbesaurus/status/937994790553227264
+		Vector2 f = p_uv * 2.0 - Vector2(1.0, 1.0);
+		Vector3 n = Vector3(f.x, f.y, 1.0f - Math::abs(f.x) - Math::abs(f.y));
+		float t = CLAMP(-n.z, 0.0, 1.0);
+		n.x += n.x >= 0 ? -t : t;
+		n.y += n.y >= 0 ? -t : t;
+		return n.normalized();
+	}
 };
 
 #endif // GEOMETRY_3D_H