update demo paper

sample/demo.md

@@ -79,3 +79,34 @@ https://stackoverflow.com/questions/20153705/three-js-wireframe-material-all-pol
 
 #动态提示 Tooltip 注释
 https://manu.ninja/webgl-three-js-annotations
+
+
+#凸包  点在相机内
+https://threejs.org/examples/#webgl_geometry_convex
+
+
+#茶壶 材质控制
+https://threejs.org/examples/#webgl_geometry_teapot
+
+#绘制线  交点
+https://threejs.org/examples/#webgl_interactive_lines
+
+
+#筒灯
+https://threejs.org/examples/#webgl_lights_rectarealight
+
+#各向异性 
+https://threejs.org/examples/#webgl_materials_texture_anisotropy
+
+#镜子
+https://threejs.org/examples/#webgl_mirror
+
+#网格细分
+https://threejs.org/examples/#webgl_modifier_subdivision
+
+#变形法线  光滑
+https://threejs.org/examples/#webgl_morphnormals
+
+
+#points
+https://threejs.org/examples/#webgl_points_billboards

sample/paper.md

@@ -23,3 +23,7 @@ http://stemkoski.github.io/Three.js/
 https://stackoverflow.com/questions/12666570/how-to-change-the-zorder-of-object-with-threejs
 
 https://stackoverflow.com/users/1461008/westlangley
+
+
+#threejs 内存管理
+https://github.com/mrdoob/three.js/issues/5175