From 8cb760171745a7bc75ff56d88f0773dc55e2f2e3 Mon Sep 17 00:00:00 2001
From: cosmonaut <evan@moonside.games>
Date: Sat, 19 Sep 2020 01:06:08 -0700
Subject: [PATCH] clean up renderer a bit + README

---
 README.md   | 24 ++++++++++++++++++++++++
 Renderer.cs | 25 -------------------------
 2 files changed, 24 insertions(+), 25 deletions(-)
 create mode 100644 README.md

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..c5dff2d
--- /dev/null
+++ b/README.md
@@ -0,0 +1,24 @@
+# Kav
+
+A 3D renderer built on top of FNA.
+
+## Roadmap
+
+Essential
+
+- [x] PBR shading
+- [x] Deferred rendering
+- [x] Point lighting
+- [x] Directional lighting
+- [x] Directional shadow maps
+- [x] Cascading shadow maps
+- [ ] Frustum culling
+- [ ] Shadow-casting point lights
+- [ ] Parabolic lights
+- [ ] Skyboxes
+- [ ] Screen-space reflection
+
+Nice-To-Haves
+
+- [ ] Volumetric lighting
+- [ ] Volumetric smoke
diff --git a/Renderer.cs b/Renderer.cs
index b16a3b7..b99fe02 100644
--- a/Renderer.cs
+++ b/Renderer.cs
@@ -210,32 +210,7 @@ namespace Kav
             IEnumerable<(Model, Matrix)> modelTransforms, 
             DirectionalLight directionalLight
         ) {
-            // set up global light matrix
-
-            var right = Vector3.Cross(Vector3.Up, directionalLight.Direction);
-            var up = Vector3.Cross(directionalLight.Direction, right);
-            var cameraBoundingFrustum = new BoundingFrustum(camera.View * camera.Projection);
-            Vector3[] frustumCorners = cameraBoundingFrustum.GetCorners();
-
-            Vector3 frustumCenter = Vector3.Zero;
-            for (var i = 0; i < frustumCorners.Length; i++)
-            {
-                frustumCenter += frustumCorners[i];
-            }
-            frustumCenter /= 8f;
-
-            var lightView = Matrix.CreateLookAt(frustumCenter, frustumCenter - directionalLight.Direction, camera.View.Right);
-
-            for (var i = 0; i < frustumCorners.Length; i++)
-            {
-                frustumCorners[i] = Vector3.Transform(frustumCorners[i], lightView);
-            }
-
-            BoundingBox lightBox = BoundingBox.CreateFromPoints(frustumCorners);
-            Vector3 lightPosition = frustumCenter + directionalLight.Direction * -lightBox.Min.Z;
-            
             // render the individual shadow maps
-
             var previousFarPlane = camera.NearPlane;
             for (var i = 0; i < NumShadowCascades; i++)
             {