Frio Belmonte
When performing a scripted object scale change, the visual interpolation does not finish properly: the object never reaches desired size until it is selected, or some other kind of change happens to force it to update. If the object is selected already as the scripted command goes through, the object just snaps to the correct size since selected objects do not viewer-side interpolate. This could be a bit of a hassle for resize scripts and the like.
Can't reproduce the problem with position/rotation, only scale interpolation. Problem can be reproduced in release 26.2 and FS 7.2.4 but NOT in Cool VL Viewer 1.32.4.
Reproduction script below:
float STEP = 0.125;
vector BASE_SIZE;
integer flag;
default
{
state_entry() {
BASE_SIZE = llGetScale();
}
touch_start(integer _) {
flag = !flag;
llSetLinkPrimitiveParamsFast(LINK_THIS, [PRIM_SIZE, BASE_SIZE+flag*<STEP, STEP, STEP>]);
// uncomment these lines to use a fullbright toggle to force proper visual scale update
//llSetLinkPrimitiveParamsFast(LINK_THIS, [PRIM_FULLBRIGHT, ALL_SIDES, TRUE]);
//llSleep(0.5);
//llSetLinkPrimitiveParamsFast(LINK_THIS, [PRIM_FULLBRIGHT, ALL_SIDES, FALSE]);
}
}
Drop the above into a prim cube with size 0.5, 0.5, 0.5. Make a second cube to use as a visual comparison aid with either the initial size, or the target size 0.625, 0.625, 0.625. Uncomment the lines to use a fullbright on/off to force a visual update and awkwardly sidestep the problem.
Included demo image also shows the issue: the z-fighting confirms the white cube (scripted) is the same height as the red cuboid (height = 0.5) initially, and same as the green cuboid (height = 0.625) at the larger size. However, when performing a scripted change, the size never reaches 0.625 or 0.5.
Problem might be somewhere in LLDrawable::updateXform since it uses an exponential damping factor that can never reach 0 or 1 exactly (unsure why that wouldn't interfere with position or rotation though).

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