Texture Rotation

[Cinder Darkheart]

I'm on a witch hunt here lol.

I'm in need of texture "Texture Rotation" that slides smoothly and stops on a given float. I'm already using TextureAnim and so that will not work for what I need. Any tips on how I would go about doing this. 

[Qie Niangao]

Tell us more about the texture animation you're already doing. Maybe there's some way to do whatever that is some other way, allowing you to use texture animation to do this smooth texture rotation effect. There's not much of an appealing substitute. You can certainly write a loop to spin a texture around and stop at a point -- that's easy, but it will not look "smooth" in the viewer because every cel of motion needs to be generated by the sim individually and shipped as an object update to the viewer, subject to network jitter, etc. (to say nothing of the script lag of the loop).

In some very simple cases, it's possible to rotate the whole object with llTargetOmega while animating the texture on some face of the object. This is almost certainly not going to work here, but we just don't know enough about this application to rule it out.

[Cinder Darkheart]

taking region wind and applying to a mesh I made, I want the texture to move with the wind do not really have to be smooth just not jumpy as it I will only fire off ever 10 to 15 mins but I don't want the jump to be to fast aiming keep it from being seen if any one is looking at it.

[Qie Niangao]

I'm not quite understanding the application yet, and this sample code is very simplistic so I'm not sure this is useful, but here's a way to rotate a texture without using texture animation:

float textureRot = 0.0; // starting rotation

default
{
    state_entry()
    {
        llSetTimerEvent(0.1);   // seconds per update
    }
    timer()
    {
        textureRot += 0.02;  // step size (radians)
        if (textureRot > PI)    // max texture rotation
            llSetTimerEvent(0.0);   // stop rotating texture
        else
            llSetLinkPrimitiveParamsFast( 0,    // link number
              [ PRIM_TEXTURE, 0 // face to rotate texture on
              , TEXTURE_DEFAULT // texture (plywood for example)
              , <1,1,0> // repeats
              , ZERO_VECTOR // offsets
              , textureRot  // rotation (radians)
              ]);
    }
}

If you don't have the texture UUID, it's possible to do this with llRotateTexture() but only with a built-in minimum 0.2 second delay between updates.

[Cinder Darkheart]

Thanks Qie I will give it a try, is add more detail to some prim water I'm making step one is down on getting the faces on the mesh right goal lol. step two is get the water to simulate wind blowing across the water. one thing I hated in all my years in sl water always see blah if you were using a prim for it. Just trying to make it more life like for me being I'm using specular mapping on my mesh to make it look that much sweeter!

[KT Kingsley]

Could you rotate a whole prim or a mesh model with a fixed texture to get the effect you want? In which case you might want to look at key framed motion for a nice smooth and precise result.