{"id":2395,"date":"2012-07-05T15:10:16","date_gmt":"2012-07-05T15:10:16","guid":{"rendered":"http:\/\/www.west-racing.com\/mf\/?page_id=2395"},"modified":"2014-04-09T15:30:24","modified_gmt":"2014-04-09T15:30:24","slug":"dynamic-ripple","status":"publish","type":"page","link":"http:\/\/www.west-racing.com\/mf\/?page_id=2395","title":{"rendered":"Dynamic Ripple"},"content":{"rendered":"

\"\"<\/a>
\nThe dynamic ripple modifiers uses a custom physics system to simulate ripples moving over a water surface. The modifier allows for rain type drops as well as basic interaction from a mouse drag. Some helper scripts are also provided to allow you to add floating objects to the scene that interact with the ripple modifier and to provide a starting point for your own scripts to interact with the system.<\/p>\n

\"\"<\/a><\/p>\n

Dynamic Ripple Param Description<\/h3>\n

Axis<\/strong><\/h4>\n

The Axis that is up in the local space of the mesh, if the mesh is a flat plane then the system will automatically pick this value for you, but if you use something other than a flat plane then you will need to set this.<\/p>\n

Columns<\/strong><\/h4>\n

How many columns to use in the physics representation of the water surface, the higher the value the better the simulation but there is no point in using a higher value than the number of vertices across the plane, ie if the plane mesh is 64 by 64 vertices then 64 is a good value to use. Use lower values for less cpu usage.<\/p>\n

Rows<\/strong><\/h4>\n

How many rows to use in the physics representation of the water surface, the higher the value the better the simulation but there is no point in using a higher value than the number of vertices down the plane, ie if the plane mesh is 64 by 92 vertices then 92 is a good value to use. Use lower values for less cpu usage.<\/p>\n

Damping<\/strong><\/h4>\n

How quickly ripples dissipate, a value of 1 will mean the ripples go on forever, a low value of say 0.5 will cause the ripples to almost instantly fade away.<\/p>\n

Input Damping<\/strong><\/h4>\n

How quickly ripples from mouse input dissipate, a value of 1 will mean the inputs will remain deforming the surface, a lower value will cause the inputs to die away, use this value to change how much of a wake is left.<\/p>\n

Scale<\/strong><\/h4>\n

This allows you to increase the size of the ripples without changing the physics, or make very small ripples that last a long time.<\/p>\n

Speed<\/strong><\/h4>\n

Not used currently leave at 0.5<\/p>\n

Force<\/strong><\/h4>\n

How much force a drop will add to the system, increase this to get larger splashes.<\/p>\n

Input Force<\/strong><\/h4>\n

How much force the mouse input adds to the system, increase this to get deeper wakes.<\/p>\n

Obstructions<\/strong><\/h4>\n

Not used currently.<\/p>\n

Drops Per Sec<\/strong><\/h4>\n

In play mode this says how many rain drops will fall each second, use 0 to have none.<\/p>\n

Reset Physics<\/strong><\/h4>\n

The physics will automatically update if any changes to say row, columns or axis are detected, but you can force a rebuild by clicking this button.<\/p>\n

Dynamic Ripple Class<\/h3>\n

[cc lang=”c#”]public class MegaDynamicRipple : MegaModifier
\n{
\n\tpublic MegaAxis\taxis;
\n\tpublic int\t\tcols;
\n\tpublic int\t\trows;
\n\tpublic float[]\tbuffer1;
\n\tpublic float[]\tbuffer2;
\n\tpublic int[]\tvertexIndices;
\n\tpublic float\tdamping;
\n\tpublic float\tWaveHeight;
\n\tpublic float\tForce;
\n\tpublic float\tDropsPerSec;
\n\tpublic float\tspeed;
\n\tpublic float[]\tinput;
\n\tpublic float\tinputdamp;
\n\tpublic float\tInputForce;
\n\tpublic bool\t\tObstructions;
\n}[\/cc]<\/p>\n

Dynamic Ripple Tutorial<\/h3>\n

\"\"<\/a><\/p>\n

Video of Features<\/h3>\n

\"\"<\/a><\/a><\/p>\n

Floating Objects<\/h3>\n

First test of a floating rigid body system linked to the Dynamic Water modifier in MegaFiers for Unity. Works quite nicely but I think I can improve things, but the Dynamic water modifier has a method to get the water height for a given point and methods for adding forces to the water, so anyone can code their own interaction scripts for the system.<\/p>\n

Click the image below to see the video.<\/h3>\n

\"\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

The dynamic ripple modifiers uses a custom physics system to simulate ripples moving over a water surface. The modifier allows for rain type drops as well as basic interaction from […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":38,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":[],"_links":{"self":[{"href":"http:\/\/www.west-racing.com\/mf\/index.php?rest_route=\/wp\/v2\/pages\/2395"}],"collection":[{"href":"http:\/\/www.west-racing.com\/mf\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/www.west-racing.com\/mf\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/www.west-racing.com\/mf\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.west-racing.com\/mf\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2395"}],"version-history":[{"count":11,"href":"http:\/\/www.west-racing.com\/mf\/index.php?rest_route=\/wp\/v2\/pages\/2395\/revisions"}],"predecessor-version":[{"id":5334,"href":"http:\/\/www.west-racing.com\/mf\/index.php?rest_route=\/wp\/v2\/pages\/2395\/revisions\/5334"}],"up":[{"embeddable":true,"href":"http:\/\/www.west-racing.com\/mf\/index.php?rest_route=\/wp\/v2\/pages\/38"}],"wp:attachment":[{"href":"http:\/\/www.west-racing.com\/mf\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2395"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}