UITexture - no automatic Update after SetFloat to the material

[imakemygame]

Hello guys,
I use NGUI 3.0.2

I have a UITexture with a material which I want to change on runtime.

1. manaBubbleMat = transform.FindChild("MagicBubble").gameObject.transform.FindChild("mpBar").transform.GetComponent(UITexture).material;
2. manaBubbleMat.SetFloat("_Cutoff", manaInPercent);

But it seems that there is no automatic Update//drawcall of the material. Sometimes, e.g. some colliders triggers, then the material updates//drawcalls
The editor shows the changed material. I mean I can see the changed Cutoff. But not it does not change ingame. Hope you can understand what I mean. My english is not the best

Regards Martin

[ArenMook]

UIWidget.drawCall.dynamicMaterial

[imakemygame]

Ok how can I use your line?

If I try

1. manaUITexture = transform.FindChild("MagicBubble").gameObject.transform.FindChild("mpBar").transform.GetComponent(UITexture);
2. manaUITexture.drawCall.dynamicMaterial -> is null

I get an "Object reference not set to an instance of an object" error

I tried to set my material but it does not work because the dynamicMaterial is only read

So please how do I have to use what you tell me?

[imakemygame]

Ok the thread can be closed. The problem was, that the drawCall.dynamicMaterial was null because I have to wait for one or two frames. Now I just ask if(drawCall.dynamicMaterial != null) and then it runs !