{"id":3706,"date":"2015-03-24T14:58:57","date_gmt":"2015-03-24T11:58:57","guid":{"rendered":"http:\/\/unitycoder.com\/blog\/?p=3706"},"modified":"2016-05-17T09:24:14","modified_gmt":"2016-05-17T01:24:14","slug":"mesh-melt-shader-test","status":"publish","type":"post","link":"https:\/\/unitycoder.com\/blog\/2015\/03\/24\/mesh-melt-shader-test\/","title":{"rendered":"Mesh Melt shader test"},"content":{"rendered":"

\"mesh_melt_shader\"<\/p>\n

Quick test for melting mesh effect using vertex extrusion shader<\/p>\n

Gif anim preview:
\nhttp:\/\/pasteboard.co\/1QARh81p.gif<\/a><\/p>\n

Forum topic: http:\/\/forum.unity3d.com\/threads\/has-anyone-ever-written-a-mesh-melter.311135\/<\/a><\/p>\n

Info:<\/strong>
\n– C# Script adjusts mesh vertex colors, based on the distance to heat point gameobject
\n– Then shader pushes(extrudes) vertices based on that vertex color (alpha)
\n– Would be probably better to do everything from script (to allow splitting the object, avoid intersecting faces etc..)<\/p>\n

Instructions:<\/strong>
\n– Download sources below
\n– Add sphere to scene
\n– Add Melter.cs script to that sphere
\n– Create new material “meltmat” and assign it to that sphere
\n– Assign Custom\/MeshMelt2 shader to that material
\n– Add empty gameobject to scene (this is the heat source)
\n– Assign heatsource gameobject into Melter.cs “HeatPoint” field in inspector
\n– Hit play, then inside scene view move heat source near to sphere to see effect<\/p>\n

Customizations:<\/strong>
\n– Melter.cs has public bool, [x] Restore Color, this slowly restores vertex colors
\n– MeshMelt2.shader, see line 23 & 24 for different effects (melt in normal direction or melt downwards)
\n– Adjust Extrusion amount in shader material<\/p>\n

Shader source:<\/strong> MeshMelt2.shader<\/p>\n