HI
I have problem with the reflection on a displaced geometry with Very strange dark artefacts. And I'm not getting full scpeculars with the HDR lighting.
Ocean deform tool in 12.5 version is used to create the ocean surface.
I am using PBR rendering,and mantra surface shader with no diffuse.
Iam using HDRI from here
http://www.openfootage.net/?p=109 [openfootage.net]
I have attached the hip file also
I wanted the full speculars…but its making bright ring around a black spot.
Thank you
Black artefact's with Reflections
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- prince venki
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- Skybar
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- prince venki
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- Alejandro Echeverry
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Set the specular minimum to 1.
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- tamte
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- prince venki
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tamte
and set Reflect Objects on your material otherwise rays that hit any object(or self) will be black unless environment has shadows off as Skybar suggested
I tried Fresnel reflection with specular minimum 0 and 1 with shadows off in environment light.
Turning on Reflect objects gave a better result but still have black areas.
I did some renders with different settings. Please check them.
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- naeem151287
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- Konstantin Kovalenko
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Hi everyone, now its 2017 and problem isnt resolve( so this is happens when u have reflection and bump together, any bump actually, clamp and fit didnt help at all, texture has a white point 0.9 and 0 black, and power of bump is 0.1, so everything is ok, seems, but here the screen and black bug i have
and here is the simple scene i made, there is only refl and bump and environment
scene
https://drive.google.com/open?id=0BxCxauJ6o6VVWGU1T0M1NW9GT1k [drive.google.com]
i dont know what is it and how to fix it
and here is the simple scene i made, there is only refl and bump and environment
scene
https://drive.google.com/open?id=0BxCxauJ6o6VVWGU1T0M1NW9GT1k [drive.google.com]
i dont know what is it and how to fix it
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- dlee
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Konstantin: Bump is producing normals that are facing away from the camera, so it's being shaded black (those areas are effectively the areas that wouldn't be visible if you were using true displacements). This is particularly troublesome with specular because reflection vectors are shooting into the sphere, and also messes with fresnel.
The solution is to either use true displacement, or massage the output normal from Displace VOP to avoid/reduce these cases (eg bend them towards “I” as the normal starts to face away).
The solution is to either use true displacement, or massage the output normal from Displace VOP to avoid/reduce these cases (eg bend them towards “I” as the normal starts to face away).
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