After upgrading to Unity4, there is a controversial change of the particle behavior when the “render mode” is set to “mesh” and modifying the “start rotation” to be random between two constants. The problem is previously in Unity3, the “start rotation” and “rotation over life” affect all x, y and z axes, but in Unity4, the rotation values only affect y-axis orientation.
I have searched already there is no option to modify the mesh particle’s rotation of x and z axes. I can understand the intention of the change, but it is far more considerate if we’re given more parameters to alternate the x and z axes rotation specifically. Actually this option is not only helpful on mesh render mode but other billboard modes.
Right now most of my particle effects look boring as shown in the attached image because they only rotate around the y-axis. There really is no turning back because the main programmer of my team refused to revert the build to Unity3 which is already heavily modified for Unity4.
P.S. The “Texture Sheet Animation” is still ineffective on mesh particle, luckily this can be overcome by adding other animated texture script.
P.P.S. After upgrading to Unity4, some of my Shuriken particle effects have changed all alpha keyframe in “color over life” to zero automatically. So I need to check all of them and correct them one by one.
