From db072ad4dc181eca5a1458656b130beb43f475bf Mon Sep 17 00:00:00 2001
From: 53hornet <53hornet@gmail.com>
Date: Sat, 2 Feb 2019 23:33:15 -0500
Subject: Init.

---
 hw4/src/reflectanceShader_base.cpp | 39 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 hw4/src/reflectanceShader_base.cpp

(limited to 'hw4/src/reflectanceShader_base.cpp')

diff --git a/hw4/src/reflectanceShader_base.cpp b/hw4/src/reflectanceShader_base.cpp
new file mode 100644
index 0000000..8ff81fc
--- /dev/null
+++ b/hw4/src/reflectanceShader_base.cpp
@@ -0,0 +1,39 @@
+/******************************************************************/
+/* This file is part of the homework assignments for CSCI-427/527 */
+/* at The College of William & Mary and authored by Pieter Peers. */
+/* No part of this file, whether altered or in original form, can */
+/* be distributed or used outside the context of CSCI-427/527     */
+/* without consent of either the College of William & Mary or     */
+/* Pieter Peers.                                                  */
+/******************************************************************/
+#include "reflectanceShader_base.h"
+#include "coordinateTransform.h"
+
+/////////////
+// Methods //
+/////////////
+color reflectanceShader_base::shade(const intersectionPoint& ip, const vec3d& light_dir) const
+{
+  // create shading frame (note: in and out point away!)
+  coordinateTransformation ct = ip.shadingFrame();
+  vec3d local_out = ct.inverseTransformDirection(-ip.direction());
+  vec3d local_in = ct.inverseTransformDirection(light_dir);
+
+  // get brdf
+  std::unique_ptr<const brdf_base> brdf = make_brdf(ip.textureCoordinate());
+
+  // eval
+  return brdf->shade(local_in, local_out);
+}
+
+
+shaderProperties reflectanceShader_base::properties(const intersectionPoint& ip) const
+{
+  // get brdf
+  std::unique_ptr<const brdf_base> brdf = make_brdf(ip.textureCoordinate());
+
+  // get properties
+  return shaderProperties(brdf->isDiffuse(), brdf->isSpecular());
+}
+
+
-- 
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