# \#specular **URL:** https://forums.unrealengine.com/tag/specular/303.md [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) --- ## [Light specular reflections visible through walls](https://forums.unrealengine.com/t/light-specular-reflections-visible-through-walls/2703605)
**Author:** [@Stefan\_9911](https://forums.unrealengine.com/u/Stefan_9911)\ **Replies:** 9\ **Last updated:** [April 3, 2026, 2:29pm UTC](https://forums.unrealengine.com/t/light-specular-reflections-visible-through-walls/2703605 "2026-04-03T14:29:51Z")
Hi, I am working on a map that has some houses on it and in the houses I have noticed that all of my inhouse and also street lights have their specular visible through walls. Now I have seen and read the topic posted in … --- ## [Translucent material no roughness, specular available](https://forums.unrealengine.com/t/translucent-material-no-roughness-specular-available/365832)
**Author:** [@WixZ](https://forums.unrealengine.com/u/WixZ)\ **Replies:** 8\ **Last updated:** [September 9, 2025, 8:16am UTC](https://forums.unrealengine.com/t/translucent-material-no-roughness-specular-available/365832 "2025-09-09T08:16:34Z")
Hi, I’m trying to make a translucent material with roughness. But it is greyed out. In tutorials and other videos i see everyone use translucent material with not greyed out roughness, specular,… Why is it not possible… --- ## [Specular highlight of point light cannot be occluded](https://forums.unrealengine.com/t/specular-highlight-of-point-light-cannot-be-occluded/2106718)
**Author:** [@hollov](https://forums.unrealengine.com/u/hollov)\ **Replies:** 10\ **Last updated:** [November 8, 2024, 9:26am UTC](https://forums.unrealengine.com/t/specular-highlight-of-point-light-cannot-be-occluded/2106718 "2024-11-08T09:26:05Z")
If I set both “Source Radius” and “Source Length” of a point light, then its specular highlight cannot be occluded as shown on the GIF below. Is this a known issue? Is there a workaround? (GI and Reflection have been tu… --- ## [如何指定计算高光时采用的视角](https://forums.unrealengine.com/t/topic/1877162)
**Author:** [@BKHao](https://forums.unrealengine.com/u/BKHao)\ **Replies:** 1\ **Last updated:** [May 29, 2024, 4:00pm UTC](https://forums.unrealengine.com/t/topic/1877162 "2024-05-29T16:00:11Z")
我有一个需求，需要移动相机拍摄两张相邻区域的内容，然后拼接起来，相机是正交相机，因此可以平移。但因为相机位置改变，导致高光计算不一致，拼接时有明显的接缝。如何指定计算高光时采用的视点呢？ --- ## [How do I stop extremely glossy and reflective landscapes?](https://forums.unrealengine.com/t/how-do-i-stop-extremely-glossy-and-reflective-landscapes/334965)
**Author:** [@anonymous\_user\_8b9284ec](https://forums.unrealengine.com/u/anonymous_user_8b9284ec)\ **Replies:** 2\ **Last updated:** [October 12, 2015, 6:23am UTC](https://forums.unrealengine.com/t/how-do-i-stop-extremely-glossy-and-reflective-landscapes/334965 "2015-10-12T06:23:00Z")
I’ve made my own landscape with three different texture layers. After creating mountains I get a really annoying problem that I can’t seem to fix. My mountains are extremely reflective. Below is the materials and also a … --- ## [specular highlights on translucent material](https://forums.unrealengine.com/t/specular-highlights-on-translucent-material/325179)
**Author:** [@Razorfield](https://forums.unrealengine.com/u/Razorfield)\ **Replies:** 5\ **Last updated:** [December 11, 2023, 7:21am UTC](https://forums.unrealengine.com/t/specular-highlights-on-translucent-material/325179 "2023-12-11T07:21:35Z")
so i was looking for a way of having specular highlight on a cornea material of an eye, and it seems like no one asked this since 4.8 was out, but i still can’t make any progress what is the propper setup for that? --- ## [Specular reflections visible through walls](https://forums.unrealengine.com/t/specular-reflections-visible-through-walls/345375)
**Author:** [@00k](https://forums.unrealengine.com/u/00k)\ **Replies:** 3\ **Last updated:** [October 20, 2023, 3:34pm UTC](https://forums.unrealengine.com/t/specular-reflections-visible-through-walls/345375 "2023-10-20T15:34:11Z")
I was working on a prototype map and noticed recently that specular reflections (from stationary point lights) were showing through walls. Is this a limitation of the engine? If so are there any good workflow/workaroun… --- ## [How can I mitigate specular aliasing w/ the forward renderer?](https://forums.unrealengine.com/t/how-can-i-mitigate-specular-aliasing-w-the-forward-renderer/379014)
**Author:** [@sealfoss](https://forums.unrealengine.com/u/sealfoss)\ **Replies:** 3\ **Last updated:** [September 19, 2023, 10:59pm UTC](https://forums.unrealengine.com/t/how-can-i-mitigate-specular-aliasing-w-the-forward-renderer/379014 "2023-09-19T22:59:31Z")
Ok, so I’m putting together a VR project for use with the HTC Vive, and I’m using the new forward renderer in 4.14. I am having some pretty severe problems with specular aliasing on the majority of my content. Sparkles … --- ## [Correct value of Specular for PBR Materials](https://forums.unrealengine.com/t/correct-value-of-specular-for-pbr-materials/487741)
**Author:** [@Viduttam](https://forums.unrealengine.com/u/Viduttam)\ **Replies:** 1\ **Last updated:** [November 29, 2021, 2:02am UTC](https://forums.unrealengine.com/t/correct-value-of-specular-for-pbr-materials/487741 "2021-11-29T02:02:23Z")
Hi all, I am new to UE4 and come from a Film/VFX background having worked on several offline render engines such as Renderman, Arnold, Vray, Mantra. I have a question pertaining to creating PBR Materials in UE4 As per… --- ## [Disable material "shine"](https://forums.unrealengine.com/t/disable-material-shine/319627)
**Author:** [@anonymous\_user\_641a18b1](https://forums.unrealengine.com/u/anonymous_user_641a18b1)\ **Replies:** 6\ **Last updated:** [October 2, 2020, 6:24pm UTC](https://forums.unrealengine.com/t/disable-material-shine/319627 "2020-10-02T18:24:41Z")
At start - sorry for my English. When I start design environment I saw this material shine. My question is - How can I disable it? Here is my landscape material. --- ## [Can you Increase Specular Scale on Directional Light past 1.0?](https://forums.unrealengine.com/t/can-you-increase-specular-scale-on-directional-light-past-1-0/434157)
**Author:** [@Bladerskb](https://forums.unrealengine.com/u/Bladerskb)\ **Replies:** 1\ **Last updated:** [November 17, 2018, 1:32am UTC](https://forums.unrealengine.com/t/can-you-increase-specular-scale-on-directional-light-past-1-0/434157 "2018-11-17T01:32:48Z")
i’m trying to increase specular scale past 1.0 on direction lights. UI doesn’t let me. Is there an ini setting i can adjust or console cmd? without it, its imposibble to generate interesting bright specular conditions. … --- ## [Deferred Decal has no specular control, yet affects specularity](https://forums.unrealengine.com/t/deferred-decal-has-no-specular-control-yet-affects-specularity/437471)
**Author:** [@Shirk](https://forums.unrealengine.com/u/Shirk)\ **Replies:** 1\ **Last updated:** [November 13, 2018, 4:48pm UTC](https://forums.unrealengine.com/t/deferred-decal-has-no-specular-control-yet-affects-specularity/437471 "2018-11-13T16:48:14Z")
We all know deferred decals are extremely lacking in UE4, but is there a way I can disable or set the specular value of a DBuffer Decal to zero? I cannot get decals to blend well with anything when they have a predefined… --- ## [How to get rid of specular reflection spot without re-baking light?](https://forums.unrealengine.com/t/how-to-get-rid-of-specular-reflection-spot-without-re-baking-light/428740)
**Author:** [@navid100](https://forums.unrealengine.com/u/navid100)\ **Replies:** 10\ **Last updated:** [July 14, 2018, 4:22pm UTC](https://forums.unrealengine.com/t/how-to-get-rid-of-specular-reflection-spot-without-re-baking-light/428740 "2018-07-14T16:22:52Z")
Hi, It’s been a while I’m trying to figure out how to get rid of specular reflection spot remaining on the surface after rotating dynamic directional light without needing to rebuild lighting. Here is what I mean; Bef… --- ## [dual lobe specular](https://forums.unrealengine.com/t/dual-lobe-specular/427474)
**Author:** [@anonymous\_user\_7212c524](https://forums.unrealengine.com/u/anonymous_user_7212c524)\ **Replies:** 1\ **Last updated:** [July 6, 2018, 2:10am UTC](https://forums.unrealengine.com/t/dual-lobe-specular/427474 "2018-07-06T02:10:56Z")
do anyone know how to use dual lobe spec for characters in 4.20 --- ## [Spotlight not interacting with specular](https://forums.unrealengine.com/t/spotlight-not-interacting-with-specular/422712)
**Author:** [@Adam\_Baxter17](https://forums.unrealengine.com/u/Adam_Baxter17)\ **Replies:** 0\ **Last updated:** [April 15, 2018, 3:54pm UTC](https://forums.unrealengine.com/t/spotlight-not-interacting-with-specular/422712 "2018-04-15T15:54:13Z")
hi, ive been having issues with the material i made for my floor, i have two of them which use a specular map to make them look wet, but for some reason they do not shine under the “spotlight” attached to my player, it s… --- ## [Nvidia VXGI Specular Performance Issue](https://forums.unrealengine.com/t/nvidia-vxgi-specular-performance-issue/421976)
**Author:** [@Gampersnaz](https://forums.unrealengine.com/u/Gampersnaz)\ **Replies:** 0\ **Last updated:** [April 6, 2018, 12:17pm UTC](https://forums.unrealengine.com/t/nvidia-vxgi-specular-performance-issue/421976 "2018-04-06T12:17:53Z")
I there, I am using Unreal 4.18.3 with Nvidia VXGI. It looks great so far and runs very well. I do have one issue regarding my materials. I’m reworking my landscape materials to be more performance friendly. It is 4 laye… --- ## [Reflections of dynamic objects are blurry](https://forums.unrealengine.com/t/reflections-of-dynamic-objects-are-blurry/407413)
**Author:** [@Sherif\_Megahed](https://forums.unrealengine.com/u/Sherif_Megahed)\ **Replies:** 0\ **Last updated:** [October 19, 2017, 4:33pm UTC](https://forums.unrealengine.com/t/reflections-of-dynamic-objects-are-blurry/407413 "2017-10-19T16:33:41Z")
I’m having a problem with getting correct and clear reflections onto a metallic material ; the reflections of static objects look good but as for dynamic objects ,like a moving character, is blurry and is of low quality … --- ## [How are Specularity and IOR linked?](https://forums.unrealengine.com/t/how-are-specularity-and-ior-linked/405956)
**Author:** [@anonymous\_user\_81aa7c82](https://forums.unrealengine.com/u/anonymous_user_81aa7c82)\ **Replies:** 1\ **Last updated:** [October 2, 2017, 4:14pm UTC](https://forums.unrealengine.com/t/how-are-specularity-and-ior-linked/405956 "2017-10-02T16:14:17Z")
Hi everyone I recently read this presentation: In it, there is a section that relates specular to index of refraction. Quote: The only times you should change specular is to control the index of refraction for very s… --- ## [Bug: Mobile Specular settings are twice as strong as the P.C. Shader model 5](https://forums.unrealengine.com/t/bug-mobile-specular-settings-are-twice-as-strong-as-the-p-c-shader-model-5/378699)
**Author:** [@TeamKingdom](https://forums.unrealengine.com/u/TeamKingdom)\ **Replies:** 17\ **Last updated:** [August 24, 2017, 3:04pm UTC](https://forums.unrealengine.com/t/bug-mobile-specular-settings-are-twice-as-strong-as-the-p-c-shader-model-5/378699 "2017-08-24T15:04:05Z")
… So strong that a Spec setting of 0 still renders a highlight that is equivalent to a setting of 1 on Shader model 5. --- ## [Can I control falloff of Specular highlights on Mobile ES2?](https://forums.unrealengine.com/t/can-i-control-falloff-of-specular-highlights-on-mobile-es2/378489)
**Author:** [@TeamKingdom](https://forums.unrealengine.com/u/TeamKingdom)\ **Replies:** 7\ **Last updated:** [August 24, 2017, 3:11am UTC](https://forums.unrealengine.com/t/can-i-control-falloff-of-specular-highlights-on-mobile-es2/378489 "2017-08-24T03:11:21Z")
Hi, I have noticed that the default specular level in mobile seems to be maxed out. The specular material input has no effect on mobile so I cannot scale it back in anyway. I’m trying to match the default value on PC bu… --- ## [What should I do if I want to know definition of specular?](https://forums.unrealengine.com/t/what-should-i-do-if-i-want-to-know-definition-of-specular/399147)
**Author:** [@anonymous\_user\_8ec418d71](https://forums.unrealengine.com/u/anonymous_user_8ec418d71)\ **Replies:** 1\ **Last updated:** [June 23, 2017, 3:24am UTC](https://forums.unrealengine.com/t/what-should-i-do-if-i-want-to-know-definition-of-specular/399147 "2017-06-23T03:24:54Z")
Once a day, I want to make sure that what our team are rendering looks real. So we want to calculate out the values we should use in UE4 about our material (a kind of oil paint) through an experiment. These values are … --- ## [Directional Light causes harsh white specular line in reflections](https://forums.unrealengine.com/t/directional-light-causes-harsh-white-specular-line-in-reflections/395001)
**Author:** [@anonymous\_user\_af66ec49](https://forums.unrealengine.com/u/anonymous_user_af66ec49)\ **Replies:** 3\ **Last updated:** [May 30, 2017, 5:26pm UTC](https://forums.unrealengine.com/t/directional-light-causes-harsh-white-specular-line-in-reflections/395001 "2017-05-30T17:26:45Z")
Hey all! So got a level where there’s a sun static mesh being paired with a directional light that animates across the sky. There’s a large sea with planar reflections set up, but when the sun/directional light is close… --- ## [Material setup - Metallic / Specular (using DDO)](https://forums.unrealengine.com/t/material-setup-metallic-specular-using-ddo/299756)
**Author:** [@Tobias\_Tobasco](https://forums.unrealengine.com/u/Tobias_Tobasco)\ **Replies:** 7\ **Last updated:** [April 5, 2017, 5:46pm UTC](https://forums.unrealengine.com/t/material-setup-metallic-specular-using-ddo/299756 "2017-04-05T17:46:23Z")
Hi there, i have assets in my game, which all use unique textures, some of them are non-metals, some are metals and some are both. I tried to create a very basic, universal material, but somehow my specularity just isn’… --- ## [How and where to position reflection captures?](https://forums.unrealengine.com/t/how-and-where-to-position-reflection-captures/385166)
**Author:** [@Araklaj](https://forums.unrealengine.com/u/Araklaj)\ **Replies:** 1\ **Last updated:** [February 17, 2017, 12:13am UTC](https://forums.unrealengine.com/t/how-and-where-to-position-reflection-captures/385166 "2017-02-17T00:13:37Z")
I’ve been recently struggling getting proper reflections in certain places of the map I am working on. The two examples are tunnels and the metal bridge. Bridge is using a metal material with roughness map, sewers are no… --- ## [Glass transluency shadow vs Specularity](https://forums.unrealengine.com/t/glass-transluency-shadow-vs-specularity/305196)
**Author:** [@Guicot](https://forums.unrealengine.com/u/Guicot)\ **Replies:** 11\ **Last updated:** [November 23, 2016, 6:56pm UTC](https://forums.unrealengine.com/t/glass-transluency-shadow-vs-specularity/305196 "2016-11-23T18:56:30Z")
Hi everyone, Sorry if the question has been answered already as I’ve been searching thoroughly through the hub and didn’t find an answer. I am trying to make some realistic glass over a pot shaped mesh. The problem I f… --- ## [Orthographic Specular Oddities After Update to 4.14](https://forums.unrealengine.com/t/orthographic-specular-oddities-after-update-to-4-14/376804)
**Author:** [@InsereNomen](https://forums.unrealengine.com/u/InsereNomen)\ **Replies:** 0\ **Last updated:** [November 19, 2016, 9:37am UTC](https://forums.unrealengine.com/t/orthographic-specular-oddities-after-update-to-4-14/376804 "2016-11-19T09:37:50Z")
I was previously working with version 4.13.2. This evening I went and downloaded 4.14 and found that my game tokens have become significantly washed out when playing in the editor. I made a copy of my project before upgr… --- ## [Why is my static mesh importing darker and shiny?](https://forums.unrealengine.com/t/why-is-my-static-mesh-importing-darker-and-shiny/371854)
**Author:** [@mikegarn](https://forums.unrealengine.com/u/mikegarn)\ **Replies:** 6\ **Last updated:** [October 3, 2016, 5:03pm UTC](https://forums.unrealengine.com/t/why-is-my-static-mesh-importing-darker-and-shiny/371854 "2016-10-03T17:03:54Z")
This is the first time I’ve encountered this problem after many static mesh imports, can’t figure out what I did wrong. When I import this mesh it comes in darker than a usual static mesh. It also seems to have some spec… --- ## [Larger specular highlight for eye material](https://forums.unrealengine.com/t/larger-specular-highlight-for-eye-material/370473)
**Author:** [@Snow](https://forums.unrealengine.com/u/Snow)\ **Replies:** 5\ **Last updated:** [September 23, 2016, 9:19pm UTC](https://forums.unrealengine.com/t/larger-specular-highlight-for-eye-material/370473 "2016-09-23T21:19:26Z")
I have been trying to get a larger specular highlight on the eye material found in the Content Example folders. It’s possible to do this by changing the light settings, but those lights also affect the scene. Is it p… --- ## [White specular on mobile](https://forums.unrealengine.com/t/white-specular-on-mobile/370228)
**Author:** [@Fisher007](https://forums.unrealengine.com/u/Fisher007)\ **Replies:** 0\ **Last updated:** [September 12, 2016, 6:16pm UTC](https://forums.unrealengine.com/t/white-specular-on-mobile/370228 "2016-09-12T18:16:27Z")
Hi, I’m creating a scene for GearVR and it was looking really strange when I tested it on the phone. I switched the preview rendering level to Android and what I found was that the specular highlights are way too strong… --- ## [Specular Maps](https://forums.unrealengine.com/t/specular-maps/362573)
**Author:** [@Shader\_Ghost](https://forums.unrealengine.com/u/Shader_Ghost)\ **Replies:** 1\ **Last updated:** [June 30, 2016, 8:51pm UTC](https://forums.unrealengine.com/t/specular-maps/362573 "2016-06-30T20:51:13Z")
Hi, This is probably a silly question to ask but I have been scratching my head over this for a while now. What does Specular really do? What is the difference between Specular vs Metallic/Roughness. Don’t i get the sam… [Next page](https://forums.unrealengine.com/tag/specular/303.md?match_all_tags=true&page=1&tags%5B%5D=specular)