Showing error in material blueprint..But cannot find where it is

[SM5] /Engine/Private/ShadingModels.ush(560,15-81): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them
[SM5] /Engine/Private/ShadingModels.ush(582,15-55): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them
[SM5] /Engine/Private/ShadingModels.ush(603,24-66): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them
[SM5] /Engine/Private/ReflectionEnvironmentComposite.ush(10,15-38): error X4510: maximum ps_5_0 sampler register index (16) exceeded


I clicked the error message but it does not jump to any part of the material blueprint
I have a power function for each of the layer but each of them is followed by an abs…
And there is only 4 texture sample use “from texture asset”

It all happens after I modified a layer’s material function. I tried to blend in another texture set with lerps.

Is there any possibility that anywhere else went wrong?

Engine Version:4.18
Forward Shading Enabled

I probably know the problem…
I cannot blend the first texture set with another texture set like that…As long as do not hook landscape uv to another texture set it is okay…

1 Like

Hi, Can you repair this bug? What you made?