WorldScale changes when using LocalRotate

Snap Lens Network Member Lens Studio Team

March 14, 2019 17:04

Hi! I'm trying to make a simple lens when sprite starts to rotate when I touch the screen and gets back to his initial position after touch ended.

But when sprite rotates, it also changes its scale (world one, local scale stays the same). Is there any way to find out, why it changes scale and how to get rid of it?

Jonathan Solichin

Snap Lens Network Member Lens Studio Team

March 18, 2019 20:35

Hi Markus!

Hmm, can you provide your example project? I'm trying to reproduce with the following code, but it doesn't look like my worldScale is changing?

var spriteTransform = script.getSceneObject().getTransform();
var additionalRot = quat.angleAxis(.1, vec3.forward());

var nextRotation = spriteTransform.getLocalRotation()
.multiply(additionalRot);
spriteTransform.setLocalRotation(nextRotation);

var worldScale = spriteTransform.getWorldScale();
print(worldScale.x + " " + worldScale.y + " " + worldScale.z);

Thanks in advance!

Jon

Markus von Dirkhaem
Snap Lens Network Member Lens Studio Team

March 18, 2019 23:09
Hi, Jon!

Looks like that's my mistake - I tried to change rotation only by changing rotation.z

Not very knowledgeable about quat command, sorry
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WorldScale changes when using LocalRotate

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