Handle linear colour space + Unity EULA compatilble third party licen…

…se notice (#155)

* Unity EULA-compatible third party notices
* Handle linear colour space
* Perform gamma correction in TF palette shader, since Graphics.DrawTexture doesn't.

Assets/Scripts/TransferFunction/TransferFunction.cs

@@ -89,7 +89,7 @@ public void GenerateTexture()
 
                 for (int iY = 0; iY < TEXTURE_HEIGHT; iY++)
                 {
-                    tfCols[iX + iY * TEXTURE_WIDTH] = pixCol;
+                    tfCols[iX + iY * TEXTURE_WIDTH] = QualitySettings.activeColorSpace == ColorSpace.Linear ? pixCol.linear : pixCol;
                 }
             }
 

Assets/Shaders/TransferFunctionPaletteShader.shader

@@ -48,6 +48,10 @@
             {
                 float4 col = tex2D(_TFTex, float2(i.uv.x, 0.0f));
                 col.a = 1.0f;
+#if !UNITY_COLORSPACE_GAMMA
+#define INVERSA_GAMMA 0.4545454
+                col.rgb = pow(col.rgb, float3(INVERSA_GAMMA, INVERSA_GAMMA, INVERSA_GAMMA));
+#endif
 
                 return col;
             }

Third-Party Notices.txt

@@ -0,0 +1,31 @@
+A. openDICOM.net
+LGPL Version 2.1.
+Copyright (C) 2006-2007  Albert Gnandt
+See full LGPL license in subfolder: Assets/3rdparty/openDicom/LGPL
+
+B: VisMale.raw (Visible Human Project)
+UNNAMED LICENSE.
+Courtesy of the U.S. National Library of Medicine
+Disclaimer: This version of the Visible Human Dataset does not reflect the most current/accurate data available from NLM.
+See full license in subfolder  DataFiles/VisMale-license.txt
+
+C. SimpleITK
+Apache License 2.0
+Copyright 2010-2019 Insight Software Consortium
+Copyright 2020 NumFOCUS
+This library is automatically downloaded when requested by user.
+See full license in subfolder: Assets/3rdparty/SimpleITK-[VERSION]/LICENSE
+
+D. nifti.NET
+MIT License.
+Copyright (c) 2019 Patrick Prendergast
+See full license in subfolder: Assets/3rdparty/Nifti.NET/LICENSE
+(Note: a modified version of nifti.NET is included in this repository)
+
+E. CUDA Cubic B-Spline Interpolation shader.
+Released under a revised BSD style license.
+Copyright (c) 2008-2009, Danny Ruijters. All rights reserved.
+http://www.dannyruijters.nl/cubicinterpolation/
+This file is part of CUDA Cubic B-Spline Interpolation (CI).
+
+See full license i Assets/Shaders/TricubicSampling.cginc

scripts/ExportUnityPackage.py

@@ -29,9 +29,15 @@ def copy_filedir(src, dst):
     os.system("pandoc README.md -o MANUAL.pdf")
 
 if assetstore_package:
-    assets = ["Assets", "DataFiles", "ACKNOWLEDGEMENTS.txt", "MANUAL.pdf"]
+    with open('Third-Party Notices.txt', 'r') as original:
+        third_party_contents = original.read()
+    with open('Third-Party Notices.txt', 'w') as modified:
+        modified.write("This asset is governed by the Asset Store EULA; however, the following components are governed by the licenses indicated below:\n" + third_party_contents)
+
+if assetstore_package:
+    assets = ["Assets", "DataFiles", "Third-Party Notices.txt", "MANUAL.pdf"]
 else:
-    assets = ["Assets", "DataFiles", "ACKNOWLEDGEMENTS.txt", "CREDITS.md", "LICENSE", "README.md"]
+    assets = ["Assets", "DataFiles", "Third-Party Notices.txt", "CREDITS.md", "LICENSE", "README.md"]
 
 for asset in assets:
     dest_asset = os.path.join(export_project_path, "Assets", plugin_folder_name, asset)