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Question by wannabee · Apr 21, 2021 at 07:21 AM · shadersshader programming

Set a single float in a FloatArray on a shader

In shader code I have a float array:

 float _X[250];

Doing this in a script then works fine:

 material.SetFloatArray("_X", x);

However, for each update I only want to change a single value of the array. I tried doing this:

 material.SetFloat("_X[" + i.ToString() + "]", x[i]);

but that naturally didn't work.

Is there any work around? It seems silly to have to transfer a full array every frame if only one value changes, but I can't see any other way at the moment.

Thank you.

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Answer by pitchblende · Apr 24, 2021 at 03:38 AM

For anyone else looking for an answer to this:

https://forum.unity.com/threads/set-a-single-float-in-a-floatarray-on-a-shader.1096753/

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