From 201d606b3d348c3287f3d57d25e6eced298c2df5 Mon Sep 17 00:00:00 2001
From: Juan Linietsky <reduzio@gmail.com>
Date: Thu, 25 Jun 2020 10:33:28 -0300
Subject: Addition of SDFGI for open world global illumination Move GI to a
 deferred pass

---
 core/local_vector.h       |  8 ++++++++
 core/math/basis.cpp       |  2 +-
 core/math/geometry_3d.cpp |  2 ++
 core/math/geometry_3d.h   | 10 ++++++++++
 core/variant_op.cpp       |  1 +
 5 files changed, 22 insertions(+), 1 deletion(-)

(limited to 'core')

diff --git a/core/local_vector.h b/core/local_vector.h
index 7f96b25f8b..d97f3330dc 100644
--- a/core/local_vector.h
+++ b/core/local_vector.h
@@ -45,6 +45,14 @@ private:
 	T *data = nullptr;
 
 public:
+	T *ptr() {
+		return data;
+	}
+
+	const T *ptr() const {
+		return data;
+	}
+
 	_FORCE_INLINE_ void push_back(T p_elem) {
 		if (unlikely(count == capacity)) {
 			if (capacity == 0) {
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
diff --git a/core/variant_op.cpp b/core/variant_op.cpp
index 2c79e2029e..0c9a4a992a 100644
--- a/core/variant_op.cpp
+++ b/core/variant_op.cpp
@@ -1786,6 +1786,7 @@ Variant Variant::get_named(const StringName &p_index, bool *r_valid) const {
 	if (r_valid) {
 		*r_valid = true;
 	}
+
 	switch (type) {
 		case VECTOR2: {
 			const Vector2 *v = reinterpret_cast<const Vector2 *>(_data._mem);
-- 
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