Cleanup.

examples/02-metaballs/metaballs.cpp

@@ -59,8 +59,9 @@ struct Grid
 	float m_normal[3];
 };
 
-// Triangulation tables taken from:
-// http://paulbourke.net/geometry/polygonise/
+// Reference(s):
+// - Polygonising a scalar field
+//   https://web.archive.org/web/20181127124338/http://paulbourke.net/geometry/polygonise/
 
 static const uint16_t s_edges[256] =
 {

examples/23-vectordisplay/vectordisplay.cpp

@@ -1,14 +1,14 @@
 /*
  * Copyright 2014 Kai Jourdan. All rights reserved.
  * License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
- *
- * Based on code from Brian Luczkiewicz
- * https://github.com/blucz/Vector
- *
- * Uses the SIMPLEX-Font which is a variant of the Hershey font (public domain)
- * http://paulbourke.net/dataformats/hershey/
  */
 
+// Reference(s):
+// - Based on code from Brian Luczkiewicz
+//   https://github.com/blucz/Vector
+// - Uses the SIMPLEX-Font which is a variant of the Hershey font (public domain)
+//   https://web.archive.org/web/20120313001837/http://paulbourke.net/dataformats/hershey/
+//
 #include <float.h>  // FLT_EPSILON
 #include <alloca.h> // alloca
 

examples/23-vectordisplay/vectordisplay.h

@@ -1,12 +1,6 @@
 /*
  * Copyright 2014 Kai Jourdan. All rights reserved.
  * License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
- *
- * Based on code from Brian Luczkiewicz
- * https://github.com/blucz/Vector
- *
- * Uses the SIMPLEX-Font which is a variant of the Hershey font (public domain)
- * http://paulbourke.net/dataformats/hershey/
  */
 
 #ifndef __VECTORDISPLAY_H__
@@ -41,7 +35,7 @@ public:
 	}
 
 	void init(bool _originBottomLeft, float _texelHalf);
-	
+
 	void setup(uint16_t _width, uint16_t _height, uint8_t _view = 2);
 	void resize(uint16_t _width, uint16_t _height);
 	void teardown();

examples/38-bloom/bloom.cpp

@@ -491,7 +491,9 @@ public:
 				const uint32_t kNum = 9;
 				const int kNumColors = 5;
 				const float color[4*kNumColors] =
-				{   // Palette: http://www.colourlovers.com/palette/3647908/RGB_Ice_Cream
+				{   // Reference(s):
+					// - Palette
+					//   https://web.archive.org/web/20180219034657/http://www.colourlovers.com/palette/3647908/RGB_Ice_Cream
 					0.847f*0.2f, 0.365f*0.2f, 0.408f*0.2f, 1.0f,
 					0.976f*0.2f, 0.827f*0.2f, 0.533f*0.2f, 1.0f,
 					0.533f*0.2f, 0.867f*0.2f, 0.741f*0.2f, 1.0f,

src/glcontext_wgl.cpp

@@ -134,7 +134,7 @@ namespace bgfx { namespace gl
 			//
 			// An application can only set the pixel format of a window one time.
 			// Once a window's pixel format is set, it cannot be changed.
-			// MSDN: http://msdn.microsoft.com/en-us/library/windows/desktop/dd369049%28v=vs.85%29.aspx
+			// MSDN: https://web.archive.org/web/20190207230357/https://docs.microsoft.com/en-us/windows/desktop/api/wingdi/nf-wingdi-setpixelformat
 			HWND hwnd = CreateWindowA("STATIC"
 				, ""
 				, WS_POPUP|WS_DISABLED

src/shader_dxbc.cpp

@@ -717,8 +717,8 @@ namespace bgfx
 	}
 
 	// dxbc hash function is slightly modified version of MD5 hash.
-	// https://tools.ietf.org/html/rfc1321
-	// http://www.efgh.com/software/md5.txt
+	// https://web.archive.org/web/20190207230524/https://tools.ietf.org/html/rfc1321
+	// https://web.archive.org/web/20190207230538/http://www.efgh.com/software/md5.txt
 	//
 	// Assumption is that data pointer, size are both 4-byte aligned,
 	// and little endian.

tools/geometryc/geometryc.cpp

@@ -477,7 +477,9 @@ int main(int _argc, const char* _argv[])
 	data[size] = '\0';
 	fclose(file);
 
-	// https://en.wikipedia.org/wiki/Wavefront_.obj_file
+	// Reference(s):
+	// - Wavefront .obj file
+	//   https://en.wikipedia.org/wiki/Wavefront_.obj_file
 
 	Vec3Array positions;
 	Vec3Array normals;
@@ -551,7 +553,9 @@ int main(int _argc, const char* _argv[])
 
 							texcoord.set(texcoord.getPtr() + 1, normal.getPtr());
 
-							// https://en.wikipedia.org/wiki/Wavefront_.obj_file#Vertex_Normal_Indices_Without_Texture_Coordinate_Indices
+							// Reference(s):
+							// - Wavefront .obj file / Vertex normal indices without texture coordinate indices
+							//   https://en.wikipedia.org/wiki/Wavefront_.obj_file#Vertex_Normal_Indices_Without_Texture_Coordinate_Indices
 							if (!texcoord.isEmpty())
 							{
 								int32_t tex;