X-Git-Url: http://www2.svjatoslav.eu/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Feu%2Fsvjatoslav%2Fsixth%2Fe3d%2Frenderer%2Fraster%2Fshapes%2Fbasic%2FGlowingPoint.java;h=14e213c63174657e77189d2965c48bfdf7c04e1d;hb=24e68b2f99037dec8a3442030dcb15013c930652;hp=e96426a6b48772bedb3e05438fb8cb39bb8bf5a0;hpb=ed4236f4d37f20f56347e47af41f8bcc4fafb8a1;p=sixth-3d.git

diff --git a/src/main/java/eu/svjatoslav/sixth/e3d/renderer/raster/shapes/basic/GlowingPoint.java b/src/main/java/eu/svjatoslav/sixth/e3d/renderer/raster/shapes/basic/GlowingPoint.java
index e96426a..14e213c 100644
--- a/src/main/java/eu/svjatoslav/sixth/e3d/renderer/raster/shapes/basic/GlowingPoint.java
+++ b/src/main/java/eu/svjatoslav/sixth/e3d/renderer/raster/shapes/basic/GlowingPoint.java
@@ -1,12 +1,7 @@
 /*
- * Sixth 3D engine. Copyright ©2012-2018, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 3 of the GNU Lesser General Public License
- * or later as published by the Free Software Foundation.
- *
+ * Sixth 3D engine. Author: Svjatoslav Agejenko. 
+ * This project is released under Creative Commons Zero (CC0) license.
  */
-
 package eu.svjatoslav.sixth.e3d.renderer.raster.shapes.basic;
 
 import eu.svjatoslav.sixth.e3d.geometry.Point3D;
@@ -23,6 +18,10 @@ import static java.lang.Math.sqrt;
 public class GlowingPoint extends ForwardOrientedTexture {
 
     private static final int TEXTURE_RESOLUTION_PIXELS = 100;
+    /**
+     * A set of all existing glowing points.
+     * Used to reuse textures of glowing points of the same color.
+     */
     private static final Set<GlowingPoint> glowingPoints = Collections.newSetFromMap(new WeakHashMap<>());
     private final Color color;
 
@@ -36,10 +35,15 @@ public class GlowingPoint extends ForwardOrientedTexture {
         }
     }
 
+
     private static double computeScale(double pointSize) {
         return pointSize / ((double) (TEXTURE_RESOLUTION_PIXELS / 50f));
     }
 
+    /**
+     * Returns a texture for a glowing point of the given color.
+     * The texture is a circle with a gradient from transparent to the given color.
+     */
     private static Texture getTexture(final Color color) {
         // attempt to reuse texture from existing glowing point of the same color
         synchronized (glowingPoints) {
@@ -52,6 +56,10 @@ public class GlowingPoint extends ForwardOrientedTexture {
         return createTexture(color);
     }
 
+    /**
+     * Creates a texture for a glowing point of the given color.
+     * The texture is a circle with a gradient from transparent to the given color.
+     */
     private static Texture createTexture(final Color color) {
         final Texture texture = new Texture(TEXTURE_RESOLUTION_PIXELS, TEXTURE_RESOLUTION_PIXELS, 1);
         int halfResolution = TEXTURE_RESOLUTION_PIXELS / 2;