From 6f7f4b6fcb1ebc9243df515c838dde198b636bc1 Mon Sep 17 00:00:00 2001
From: Julian T <julian@jtle.dk>
Date: Tue, 10 Mar 2020 11:57:41 +0100
Subject: Initial with a link to resources

---
 ray.c   | 7 +++++++
 scene.h | 6 ++++++
 2 files changed, 13 insertions(+)

diff --git a/ray.c b/ray.c
index e91d7e1..e776893 100644
--- a/ray.c
+++ b/ray.c
@@ -187,6 +187,13 @@ static void ray_calc_light(space_t *s, color_t *dest, object_t *o, vector_t *N,
 	}
 }
 
+// Calculates the environmental light. Pretty slow
+// https://www.scratchapixel.com/lessons/3d-basic-rendering/global-illumination-path-tracing
+static void light_environment(space_t *s, color_t *dest, object_t *o, vector_t *N, vector_t *eye, vector_t *point) 
+{
+
+}
+
 int ray_trace_recur(space_t *s, color_t *dest, ray_t *ray, unsigned hop, COORD_T scale)
 {
 	COORD_T dist;
diff --git a/scene.h b/scene.h
index 90e5ebb..7eef588 100644
--- a/scene.h
+++ b/scene.h
@@ -62,6 +62,12 @@ typedef struct {
 
 	color_t ambient;
 	color_t back;
+
+	// Environment light
+	// TODO make more general
+	// Slows things down alot
+	bool env_enabled;
+	color_t env_color;
 } space_t;
 
 object_t *add_sphere(space_t *s, vector_t *c, COORD_T r, material_t *m);
-- 
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