Ue4 rotate normal map. Game Tools | Normal Rotate.

Ue4 rotate normal map A world space normal vector represents the vector direction as a function the world space coordinates (x,y,z). obj (32. Thanks in advance! Sep 17, 2017 · The problem is that any kind of projected normal map like this is technically wrong. Next, drag off the Delta Rotation parameter and add a Make Rotator node. Next images are for broken one. 5, 1, and everything looks good. com/l/tZpK Texture Projection: Part 3 of 3 — Fixing normal maps on triplanar projection. This means calculating a second rotation matrix with the inverse angle, or the inverse matrix. 01: - Normals rotation should now also "fix" the normal map angle. Texture Scale. If for example I have the normal map of a sphere, with light coming directly from the top, when I rotate the normal map to Oct 2, 2022 · The simplest, basic thing; I create a model, Bake textures, upload to Unreal, and it works, but when I rotate the model 90 degrees the concave details look convex and vice versa. Normals wise, it won't break your normals in the material (like some triplanar solutions indeed do) though you won't want to pass an actual normal map through this logic alone - you'd have to do extra maths to flip some of the facings of the normal map so that the tangent basis is consistent everywhere. (Rotate on camera’s direction vector) Pitch是俯仰代表绕着Y轴旋转. you gotta run the deform function multiple times but you get normals this way. I do not want to use external tools to do it for me, so if there is an explanation for how to do it in Unity I would very much be interested (I know how to work with modifying textures either on import or selectively, so that detail can be skipped, I mainly require the Created a small material function. This specific normal map was acquired from a commercial product that I have been using for a good while. So…can anyone show me some UE4 examples? Apr 23, 2014 · But as far as I can tell, a vector alone does not define a rotation completely, as you could still rotate the decal around the normal vector. gg/YvXq3 Jun 4, 2016 · Is Normalmap (B): This must be set to true for normal maps. I can pre-rotate the texture 90º in photoshop. common technique. But when I import the normal map into UE4 the lighting on the screws Mar 23, 2018 · We connect a normal map in the Normal plug in the Material Editor and it’s expressed in Tangent Space (as commonly happens), Its values are compressed, because it expects colors from a texture, so it’s (0,1) instead of vectors (-1,1) Its values are purple looking, meaning normal (0,0,1) → (0. The normal maps being using weren’t generated with the same tangent space we’re displaying them at. Currently if I hit an object with a downward strike it will pass a hit normal of approximately (0,0,-1) but then the indent will always face towards the ground, no matter what angle the object is at. 15 version. The displacement would be WITHOUT texture sampling. I can get the rotation working on the diffuse easily enough, but rotating a normal map doesn’t work. Also, flipping the green channel has a very negligible effect on the appearance of the mesh at all. The colors of a normal map are linked to these coordinates, such that the combined colors of the normal map equate the vector direction. Dec 9, 2014 · Ok thanks you so much man! Now it looks good! However I noticed something… I set the light vector to . (Because I find it useful) Rotation Degrees. You can see on the image below, these are two half spheres and plane with same texture, the left is rotated : Jun 15, 2021 · Ok so this is currently what I have got in the material editor. I’ve tried flipping the green channel, rebuilding the lighting, unchecking Tangent Space Normal in the material Jun 2, 2022 · Hey there! I made a decal with only normal map. The result should go into the material normal input. Apr 24, 2015 · Rotation作成ノード make: Make Rotator ピッチ、ヨー、ロールからRotationを作る。 Find Look at Rotation: スタート位置からターゲット位置を向くRotationを作成する。 RotationFromXVector: X軸の方向ベクトルを元にRotationを作成する。 Make Rotation from Axes: 3軸指定してRotationを作る。 Jun 14, 2018 · Have tried to search for hours for a solution, have tried multi-pal methods but i think its due to the fact i am using a cubemap instead of a normal texture and usually dont dive this deep into materials … might be lost but i think there are issues trying to get v2’s and v3’s communicating… it is functioning exactly the way i want it to just going in the wrong direction (left rotation In this game art episode I go over how to use the world position offset to make a mesh animate a rotation that is efficient and optimised. Jun 14, 2015 · I have a trick. Then import it to unreal. This might be a strange one. Any one knows how to do this? , or any work around, so i can apply a material do different objects, but still having the same UV tiling scale and rotation in all of them. 0, 1. Texture size. Utility node to initialize the Color node with the proper normal map colors (128, 128, 255) 0:01:16 Game Tools | Normal Combine. Your Normal map should be used as the "AdditionalNormal" input. While this trick is pretty common I was surprised to not find clear information on it for UE4. Dec 5, 2020 · I saw that there is a “Fix Rotate About Axis Normal” material function in UE4. I don't recall ever having to change my normal map compression or texture group in UE4 since I started using it just over a year ago. Open the normal texture and then in its settings tick the box that says ‘Flip Green Channel’ (shown in image). Plug that into whatever you need to rotate (that takes a rot value) and you should be set! Oct 28, 2015 · Hello All, Someone on our fb group needed a way to rotate a Texture object, while using the regular world aligned texture/normal and that is a hard thing to do… I decided to recreate these two nodes with additional features, and cleaning up/removing a few features (that nobody seem to use). To illustrate the problem, this is one plane duplicated four times and each rotated 90 degrees. Instead of creating a skeletal mesh or an InterpActor, I’m wondering if I can just build the rotation into the material. How can I use this M F or any other method to rotate the normal map so that it works correctly in conjunctions with all the other maps? Dec 7, 2022 · Are you rotating your normal maps like any other texture? Learn how and why we must take extra steps to rotate normal maps to get accurate lighting, reflecti Jan 18, 2015 · Make sure that the ‘RotationAngle’ matches the ‘Speed’ value of the rotator node but with the opposite sign. You can also press m while left clicking to create multiply nodes fast. 1 - You should switch OFF “Tangent Space Normal” in material settings. how you do the normal computation? it could be rather easy just computing a coarse delta with 2 lil offset for both x and y. for example: (any axis) rotation 0 = neutral map rotation + = contraction map rotation - = extension map. 2w次，点赞3次，收藏31次。UE4 三种旋转FRotatorFRotator(Pitch,Yaw,Roll)三个参数分别为：Pitch:俯仰角，即绕Y轴旋转；Yaw：偏角，即绕Z轴旋转；Roll:滚角，即绕X轴旋转。 Sep 16, 2021 · Here are the nodes to normal map strength in Unreal. jpg 1578×767 124 KB. 25 for angle. com/artist/mohamedk Jul 6, 2020 · Quick UE normal map tip: If you load a normal map into a UE material and the result appears inverted, i. quick video showing to rotate your textures inside ue4 keep in mind you can only rotate to 45° and 90°- follow me: https://www. I’ve generated a new normal map before by sampling a rendertarget heightmap before, but I was wondering if its even possible in the Material Editor to calculate a new vertex normal for a Vert that has been displaced by a simple sinewave pattern ( plus an intensity scalar ) May 3, 2014 · Check out the math hall content example. Mar 15, 2017 · Hi! I’m doing normal maps for UE4 for the first time and I just realised what one of the problems I’ve been having are because of. The seam is the seam between meshes. To bake normal map: In the left side of blender window in the Properties open Render tab. A pure red normal might mean (1,0,0) in world space. - Added 4. Use the -(vertex normal) for the rotation axis. com/MWadstein/wtf-hdi-files Jul 21, 2016 · Hello there, I have a problem and I could’t find solution. The Rotational Map is evaluted in addition to the Angle slider in the Dec 24, 2016 · Hi guys, So I’m just getting in to using decals and they work pretty well but i have stumbled across an issue I’m attempting to use a decal to apply some surface cracks to a road therefore im using the dbuffer translucent normal blend mode. There is are 2 styles of camera facing math examples show near the very end. Regardless of this I'm getting some incorrect lighting both in 3ds Max mental ray and in UE4. Turned out to be fairly simple. (I know that I have to create a map for stretching/extending then squeezing/contracting in a modeling or texture program, I’m using Blender btw. holes instead of bumps or the other way: The quick fix: In the texture settings, check the Flip Green Channel option and save it: The deep fix: * This can be performed an automated action on multiple files. In this video I explain the logic behind the combination of normal maps and I illustrate some example algorithms to do that. I do not understand this. 0 - DirectX; 1 - OpenGl; This can for example be inherited by a Normal Format Converter Output. After you're done with sculpting, bake normal maps from each of the sculpted faces onto the original meshes (you can find our tutorial on normal map baking with Blender here, the only thing different here is using multires Mar 17, 2023 · hmm. 4 KB) This is how I recommend dealing with situations where you need to rotate parts of your normal map. Hey guys,This is a tutorial on: How to setup normal maps the right way in UnrealEngine's node editor. Game Tools | Normal Rotate. There are quite some online discussions on how to correctly rotate normal like this one: Epic Developer Community Forums – 19 Jan 15 Overwrites the Normal Format Dropdown of the Node. 3 - Plug the result to Normal input of your material node. ) In general, the red channel of a normal map means “normal direction along the U texture coordinate. Is it possible to use a normal map with a rotator and preserve the up direction? Oct 27, 2016 · I’ve found a solution how to rotate normals. Use this as the input for your POM light vector. The light source is at the top. 27206-ue4+progress. And in Substance Painter, where I baked the normal map, they do. Details regarding the technique and how it compares to other approaches can be found here . I have four screws on my model which are all positioned on the same side, so they should all get the same light and reflection. I am trying to rotate the whole image 90 degree’s anti-clockwise. You can also transform the normal map properly so the sprites light correctly as they rotate. ) Jun 14, 2022 · I have something that I want to rotate around. Nov 4, 2016 · It's better if you don't make overlapping wrinkles, because all of these will be combined into a single normal map later. And this is the alignment (Bumps are supposed to be aligned with the mountains/elevated terrain): Kind of lost at this point on what to do. So drag lines from R and G from the Normal Texture Sample. 5 for rotation center and . I don't know if I have asked before but is there a good way to change normal back into displacement texture? Dec 25, 2017 · For Unity users (or anyone writing shaders for custom engines), the trick is to rotate the x and y of the tangent Normal with the opposite rotation. I just wanted quick access to the Z rotation component. Here The problem I'm struggling to figure out is that when the object rotates, I can't figure out how to rotate the hit normal with it. 5, 0. ImpactNormal. However, this doesn´t work with deforming meshes, as it only takes into account the object transform Aug 22, 2023 · Currently, I'm seeking a technique to adjust the rotation of a wave texture connected to a normal input. May 7, 2022 · For further information please check out and support these creators:UE4 How to Scale UV Coordinates through Parameters with Blueprints in Unreal Engine 4 Tut #Paper2D #UnrealEngine #GameDevIn this video I go over applying normal maps to sprites and lighting sprites, flipbooks, and tilemaps. Increases the quality of the blend at the cost of some instructions. One comes from a tangent space normal map converted into world space using a classic TBN matrix and the other one is a mesh normal map in world space. I’m sure sooner or later UE4 will offer it as an alternative option, much in the same way they allow toggling of a normal underneath the clear coat, and the addition of more color information for subsurface scattering materials. Normal map will not shade correctly based on the lig Jan 7, 2024 · Here is the usual normal map that I use for the interior walls. Pretty much every joint would reveal a different area of the maps, which map it reveals would depend on the rotation. The normal maps I was using were PNG files. and still used in raymarching. This time I used the window coordinates (Texture Coord node) becau Aug 22, 2017 · This is my albedo (primitively delit): All the normals maps imported correctly straight up. 0. vec3( 0. The problem I have When I compress my normal map in Unreal Engine 4, using the BC7 compression setting (or the DXT1/5, BC1/3 setting, for that matter) the R and G channel (where the normal map exists) gets shafted extremely hard. 可以明白我们可以使用RNM Blending，将修复后的顶点法线作为Base Normal，将需要应用的法线贴图作为Detail Normal（当然也可以是混合过一次的）进行混合得到最后的法线。 Jan 24, 2019 · That’ll rotate the normal orientation, so lighting and reflections will come along for the ride. A tutorial on how to add a rotation function to the World Aligned Texture node inside Unreal Engine. I’m doing simple false edge at flat window frame with normal map. This will let us choose around which axis the object needs to be rotated. Tangent Normal Map Rotator using 2D rotation equation =) Aug 11, 2024 · Hi all. Jul 23, 2019 · Having the normal map be in -Y format will lead to some very weird results in the lighting where rotating the object or the normal map can make it look like the normals are spinning in both direction. But by just wiring the color and normal map anyways, the function still basically works in 4. Sep 18, 2017 · Hello everyone, I have set up a master material where one of the parameters is a float that rotates the texture coordinates 90 degrees counter-clock wise. I made my own texture to try this out and I have one problem. Texture Object input. Tested in UE5. Feb 22, 2016 · When world aligning normal maps, the material normals on meshes shift along with the rotation of the object that it is applied to, as demonstrated in [this video][1]. The resulting output data Apr 13, 2023 · UE4中变换的旋转属性 旋转属性有三个值分别是：Roll值、Pitch值、Yaw值 Roll值： Pitch值： Yaw值： 这三个值是相对于UE4的坐标系统而言的，其中， Roll是翻滚代表绕着X轴的旋转. However, this method doesn’t work with the normal map texture, and whenever I rotate the UVs, it outputs wrong the normal map. But its kind of way around, and i would like to do it on the UE4. The first sample here is the uncompressed texture, viewed in UE4 and the second one is the compressed version. Discord: https://discord. Once you break the raytrace result, take the “impact normal” or “normal” output and convert it into a rot with a “rotation from xvector” node. 02: - Texture version now comes with alpha channel support. It does the trick. blueprintue. (edit : in the OP case, you may be able to get it to work by rotating the tangent space for the left quad) Sep 14, 2020 · Hello! I’m fairly new to Unreal so I hope this isn’t too silly of a question, but I’m having a weird issue with my normal maps. 0 ) All of a sudden I started getting flat shaded lighting which looked as expected. i connected “localPosition” node to the “world aligned texture” node, in the "world position (v3) input or whatever its called. com I've got this "Fix Rotate About Axis Normals" node all set up, it's applying correction to the "collar" part on the mesh and appears to be working just fine. com/course/unreal-e Apr 12, 2018 · Thanks for getting back to me . It works as expected if I place object without rotation: But once I rotate object at least by Z azis, normals are broken (and lighting incorrectly A quick tutorial in how to reconstruct the blue channel of a normal map in Unreal's shader graph Showcase of normal map vector correction when object rotates, made in Corona SDK Mar 9, 2020 · If you rotate the model in the world, the normal map would change to reflect this change. As I understand it, there shouldn't be a problem with rotating objects when they are using tangent-space normal maps as opposed to object or world space ones. 2 - Get Normals World Space, Rotate Normals around 0,0,0 pivot. Here are model and textures; kostkaLowTrian. udemy. update 1. What am I doing wrong ? Maybe I baked the normal incorrectly or do I need to unpack the normals in some special way in the material? May 14, 2024 · My experience with UE/Niagara is very much limited to UE5, but I would suggest you to fetch your rotation angle and UV flipping via Dynamic Parameter, then rotate the Normal map sampling result in the material. Downloadable at: https://gumroad. Compensate by applying the opposite rotation to the vector space itself: (You can use a regular mapping node for this. Enable Height Lerp (B): Whether to enable height lerp blending. I have used both of those techniques to do speedtree style camera facing sprites. co/rotatenormalmapblender Apr 30, 2023 · The first thing you will need to understand is how to rotate normal maps or vectors in general using trigonometric functions. Jan 6, 2021 · Get the files here ↓↓↓https://gum. Rotation(); FRotator NormalRotator = Hit. Just wanted to confirm I pasted this into a 4. However when i apply the decal with just the normal map linked i get this obvious square on the decal’s bounds which i expect so i attached an In UE5, whenever you use Custom Rotator to rotate your texture, the Normal Map will look odd (inverted). 20 project. Jul 31, 2014 · I just ran into this working on some raytrace functionality myself. Rotation Map (0-1,optional) A black to white (0-1) map defining the values to rotate the Normal Map. When this decal rotates around the axis, it seems that the normals ignore this rotation, the shadow rotates along with the decal, although the shading of the faces should change. There is a part where he shows you how to have a material repeat. I am unsure on how to flip the texture in that noding. Nov 20, 2020 · This can be easily fixed with one click of a tick box in the normal map settings. We've just noticed at work that on world aligned materials (which we're using for mesh ground tiles) when a mesh gets rotated the direction of the normals seems to rotate with it. The light was no longer rotating. The Input value should be . (Rotate on the cross product of the other May 29, 2021 · I am trying to rotate my normals with a Custom Rotator for my dynamical Instance static meshes (I have a function that gives the desired angle of rotation to them) but they come out wrong as if the engine adds another direction to the normals. Update 1. Rotation(); FRotator DeltaRotation = NormalRotator - UpRotator; MyRootComponent->AddLocalRotation(DeltaRotation); This almost works. Checking this box performs transformation accounting for flipping and rotation of normalmap. I found some interesting resources here : Blending in Detail; Shadertoy - Normal Map Blending Jul 27, 2024 · In this video we take a look at how to create complex animated patterns in HLSL that deform a surface using World Position Offset (WPO) as well as how to Gen Jun 28, 2020 · Hello. Gamma and Normal Maps. Normal maps should only ever be used with the geometry and tangent space they were originally May 15, 2020 · Hello, I’m trying to make my object rotate using the rotateAboutAxis material node, but the normals are messing up, so I googled it, and found I need to use the FixRotateAboutAxisNormals node in conjunction with it to correct the normals, but, in the description for the node it says the following: " It’s recommended that this be calculated in the custom uvs input. They were likely generated for a perfectly flat plane. I cover how to deal wit Apr 19, 2016 · I am trying to blend two world space normals inside a shader. Here it is adjusting the normals as it rotates with no normal map included, only the mesh normals. 5, 1) (bluish) That makes me think the I'm trying to create a shader that will blend two materials together with the top material being blended based on a simple world rotation mask so that if I rotate my mesh the blended material will always appear on top no matter the orientation. For a week i’m fighting with this, i maybe pinpointed how my problem is created, but i have no knowledge to understand it and fix it. You should either disable collision or consider using a simple collision shape that doesn’t need to rotate and handles approximate collision regardless of the rotation. I use simple material for landscape which writes to virtual texture: and in objects what should be blended with landsape in material I read from RuntimeVirtualTextureSample. (0 You need tools specialized to work on normal maps to modify the normal map values (e;g in Substance Designer, Painter, NDO, UE4, Blender, ) or rebake according to your object new orientation. I also show how to Jan 12, 2021 · 文章浏览阅读1. I attempted to invert the rotation angle which does get it to rotate the right way but maintains the wrong speed which doesn't match the actual object. As an example I use a rock texture in this video but yo Sep 19, 2019 · Quick tutorial on how to make a refractive material, with a normal map and rotation. My code is something like this : FRotator UpRotator = MyRootComponent->GetUpVector(). Make sure the line from R is connected to A of the Multiply node. 0, 0. I found the solution to my rotating light problem when I replaced the code to get the surface normal from the map with. ; Change render engine to Cycles; In a Bake section change Bake Type to Normal; Because UE4 Y-axis are flipped compare to blender Y-axis, we need to under Influence section change G value to -Y Nov 21, 2019 · Keep in mind that this does not update the rotation of the mesh collision. Open the normal map in Photoshop Do you mean the facing normals of a model’s geometry, or the vector of a normal map? If the latter, you just invert the green channel of the normal texture; if the former, you need to fix the model outside of Unreal. Jul 28, 2020 · Some others will work, however in my experiments, the ones suggested by other sources did not rotate my object 360 degrees (let alone indefinitely). Next bit, when Unity imports a normal map it handles it in a couple of different ways depending on the image compression format used. Please watch the previous episode, "Transferring Textures Sep 17, 2022 · This tutorial shows how to rotate normal map textures correctly - using Blender math nodes. It works for a climb but not for a descent because the impact normal is always positive. Reoriented Normal Mapping This repository constains the code for Reoriented Normal Mapping [1], a technique to compute proper blending of tangent space normals via quaternion rotation. artstation. ” The green channel of a normal map means “normal direction along the V texture Dec 28, 2015 · I want to create wrinkle maps (some call them stress maps) for my characters. Hopefully someone can help me fix this, for some reason despite using the same values, the normals rotate in the opposite direction to the WPO. Like you said the texture samples don’t have RBGA in older ue4, so there’s just nothing connected from the textures. 20. In-game look with basic texture: In-game look when i use normal map as a texture: Blender view of faulty area: For comparison here are same images for Mar 8, 2016 · See how the rotation of the shoulder changes the wrinkles and folds in his jacket. Oct 10, 2014 · It seems the G-buffer used in UE4’s deferred rendering needs more information than what is currently allocated. But i dont have a UV map for the mesh, so what i did was connected the material to “world aligned texture” node and the XYZ to the result node. Mar 27, 2020 · This week we have a look at how we can recalculate our Normals in our Shader, for when we're using WPO or Displacement to alter the mesh shape. Sep 17, 2014 · I want to set my root component Up vector to be equal to the normal of the floor the component is over. If you type “mul” you can get to multiply. Oct 7, 2023 · Want to learn Unreal Engine? Use the following link for a huge discount on a 10-hour Unreal Engine 5 Beginner's course: https://www. ) My question is: what do I do with them once I get them into UE4? How do I set up wrinkle maps to work based on Tension of the surface polygons, if not that: then what Nov 15, 2017 · In regards to your first question, I would be interested in regenerating the normal map in tangent space, but I am unsure how. When i rotate an object with world uv coords, the normal map is rendering not properly. But when I rotate the object (which is a quad plane with the face normal in the positive Z direction) around on the Z axis the lit hightlights from the normal map rotates with the object the first 90 degrees, so at 90 degrees it looks like the ligth comes Feb 14, 2016 · What is the Material: Rotate About Axis Node in Unreal Engine 4Source Files: https://github. good old bump mapping trick before normal maps were a thing. Position will be -(light vector). I’d like the decal to always have the same rotation, relative to the surface, i. GOOD SHADING (No UV rotation) BAD SHADING (UVs rotated 90 degrees) MATERIAL SET-UP I would like to know what The plan was to duplicate and rotate the spoke to make the others. AddActorLocalRotation seems to do the trick though. Use the same -(rotation angle) as with the normal map. My texture has a certain position it needs to be in and when I follow the tutorial my texture is upside down. Then, add the output back to your original position aka -(light vector). 5, . I looked online and found few solutions but they don’t work for me as I work in Local Space because of the instances and they work in world space Dec 23, 2016 · So, i have 3d model made in blender and i imported it in UE4. As you can see, this map is visually pleasing and functions, at least for me, beautifully, provided that the entire object is not rotated. However, my attempt to rotate it using a mapping node results in the wave texture merely shifting rather than actually rotating it. Feb 11, 2017 · Use the rotate about axis node. 5-. Other than that it works fine. if I would rotate the surface around the hit normal, I want the decal to rotate with it, as if it was glued to the surface. I should of been a little more specific. so my texture stays with the static mesh, not the Feb 1, 2017 · (The normal map isn’t “physical” in the sense that it doesn’t move the geometry, so it will look squished when you take it to extremes like you do. Basically, you should use World Space Normals. Apr 25, 2014 · Give . e. As you can see in the image below, I have two instances of the same object in my scene, but when I rotate it 90 degrees, the normals seem to invert. I’ve faced with strange issue related to virtual texture. (Still somewhat new to UE4) - Comes with an update to the world-aligned normal/separate world-aligned normal function as forum user "StrayDorian" found a bug that kicks in about 50k units away from 0/0/0. The end result is world-space tiling where you can rotate your meshes at an arbitrary yaw with a correct normal. If you want . Pivot point is (0,0,0) when rotating a vector. 1. Additional Note: The heightmap texture defaults to the R Jul 10, 2015 · Hello, I would like to change the rotation of an actor (here a pawn) depending on the impact normal from line trace. Oct 6, 2014 · I followed the UE4 tutorials on the paper 2d project. Works in both UE 4&5. This is a follow-up to the video about Triplanar Texture Projection in Unreal Apr 5, 2019 · Woah awesome. How to rotate a texture in the material editor? How to rotate the UVs? How to stop a rotated texture from tiling?Welcome to How to a snack-size video for Mar 9, 2024 · Hello again ! Tutorial fixed ! World aligned textures are very useful to make environment elements "snaps" without seams but functions have some limits. This will invert the normal and hopefully, should fix any issues regarding inverted normals appearing in the wrong direction. Sep 19, 2022 · This custom node takes a normal map, converts the (R,G,B) vector of the normal map into polar coordinates, rotates those coordinates by dTheta, and then converts those polar coordinates into a new (R,G,B) normal map. This video at about the 4 minute mark goes into the basic trigonometry of taking some (0-1) input value and turning it into a 2D vector that can be used to get a new normal vector. ifi eoy rtm higzez pbbufvx pffagha shamt vfhkzyh ckewzs jqbynn usqqjd qdtcn kctj sujrtfb cqkatg