How do you mask out roughness on a mesh?
I am having problems in the roughness area. I was following along with an old professor online. When I tried to repeat what he was doing, I didn't get the same result. When I plug in my black and white texture into the roughness input, the mesh remains shinny. I tried playing with the values and nothing, only being shinny and rough all over the mesh.
Here are some images and a video link to help better assist. The video link is the video I was following step by step. 1:52 is where he goes into the editor. http://youtu.be/e9-sKpilWK0 Also I tried using three different versions of unreal, all using fresh project files. 4.2.![alt text]1, 4.1, 4.5![alt text]
Here is my hardware. i7-2600 @3.8 RAM 16 Radeon 6970
asked Nov 20 '14 at 04:23 AM in Using UE4
Your texture roughness is too dark. Look carefully your lesson.
Look to this picture below.
I use texture with many dark pixels and this look very glossy.
I corrected texture in shader, but you can do this in photoshop. I just offset pixel data, and remove black and dark pixels.
answered Nov 20 '14 at 02:05 PM
You need understand how Roughness work. 0 - is clear reflection, 1- is maximum blurred. In your example need invert your Roughness texture and make texture more contrasted.
answered Nov 20 '14 at 08:18 AM
Besides being able to use a Vector1 for your Spec and Metal inputs (instead of a vector 3) your roughness has various shades of gray.
The closer to white, the more reflective your surface will be, this is enhanced by the specular value you put in. Read up on: https://docs.unrealengine.com/latest/INT/Engine/Rendering/Materials/PhysicallyBased/index.html and play with the sliders.
answered Nov 20 '14 at 01:48 PM
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