How to control the diffuse texture/color intensity?

Development Rendering
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1

I need to control the diffuse texture intensity, how to do that?

thanks

2

You can do that with blueprints and material instances. Take a look at this documentation page: https://docs.unrealengine/latest/JPN/Engine/Rendering/Materials/MaterialInstances/index.html

3

Thanks for your answer, I have already read that documentation, i can change the color intensity but I can’t change the texture intensity in Texture sample Param 2D, I’ve only managed to have a Scalar Parameter node, it only controls the (contrast power) and I’ve to put a crazy number value like 100 in some textures to make the texture disappear or to have only a 20% of texture

4

So I’ve figured it out, there is different ways to control the diffuse texture intensity, I just use a power node, easy.
Thanks

5

I think you may use the old trick in college that used to bring up the test average, the mathematical expression is as follows:

Changed Value = Initial Value -----> Sqrt ------> Multiply ------> Your Scalar Parameter (1D)

By applying the above, for instance, if you get 59 out of 100, then your changed “score” will be : 59^0.5 * 10 = 76.811 ish,
this calculation provides you an uneven scale from zero (the changed value for zero still is zero) up to 100 (the changed value for 100 still is 100).

Which I apply this trick to my Emissive/ Occlusion/ Specular/ and Displacement maps all the time, and they all work fine.

Meanwhile, I believe that a regular way to scale up the contrast is instead of using “Multiply” node, but applying “power” node.

Hope the above would help!

6

Depending on if one wanna go for a realistic look one may normalize intensity with the information from the two following links. I always tend to find this answerhub first before finding those:

https://forums.unrealengine/development-discussion/rendering/40841-pbr-lighting-questions

https://docs.unrealengine/en-US/Engine/Rendering/Materials/PhysicallyBased/index.html