Blender Stack Exchange
Blender Stack Exchange

Questions tagged [bump]

The Bump Node is used in materials to simulate the appearance of displacement. Use this tag for questions about the use of the Bump node.

The Blender manual says that the Bump Node

generates a perturbed normal from a height texture, for bump mapping. The height value will be sampled at the shading point and two nearby points on the surface to determine the local direction of the normal.

or, in simpler language, it simulates the appearance of displacement without requiring geometry.

Use this tag for questions about the use of the Bump node.

140 questions
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Creating a bumpy model without any maps

I'm trying to create a model for 3D printing which needs many small bumps on it, meaning it needs to be in the physical model and not just as a bumpmap. Any tips on how I could create consistent bumps to my model?
vDan
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1 answer

Difference between bump map and normal map

Does normal map contains height information? Because it stores x,y,z axis information, but is the z axis equals to height information? But some comments I saw said that normal map does not contain height information, then what the z axis is…
Che Xuian
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1 answer

How to Create a Bumped Logo with Flickering Light Animation in Blender?

Hello Blender community, I'm relatively new to Blender and I'm trying to recreate a specific animation effect for a logo, but I'm having trouble figuring out how to achieve it. I've seen a video where a logo is both bumped up and flickering with…
Aimad Alachal
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1 answer

Bump map mask peeks through in rendered view

I am trying to use some skin-like texture on the face of my model, and I use a mask multiplied with the bump map to get it only in the right places. At the white places I want the skin texture, at the black ones I do not. It almost works fine, but…
Antal Georgina
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Normal bump problem

I've started to learn Blender by myself with all tutos on the web. I really enjoy Blender. First sorry for my english... I have a problem to make a bump on the normal node. So I try witha very simple cube. Il I put a checker on the normal node the…
fab84
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1
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how to create paths and bump up the texture

im stuck at this point i manage to add the image texture both sides to create the skin but what i want to do is to trace every vein and bump them up a very little so i can create a second layer over the model im kinda new on this so im asking the…
L C
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How to make consistent bumpy pattern geometry

Could you suggest best approach to make this geometry? Not fake texture bump but geometry one?
NemusKraft
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Bump map appears pixelated

Since this morning I can't make any bump map work properly, they always appear pixellized, in OpenEXR format or with 32 bit Float, either in 2.8 or 2.9, it doesn't seem to be the Terminator effect either, so I don't know what I'm missing here, can…
moonboots
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How to generate a bump map from two slightly different meshes?

Suppose that there is a mesh A. After very slightly and subtly sculpting it (changing some vertices' positions), it becomes mesh B. Now I want to generate a bump map which represents mild differences of surface height between those two meshes. I…
saturnbag
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weird polygon lines when using bump map

Hello, I'm having an issue where the lines in my mesh appear after I add a bump map. I'm using a bump map on other meshes in the scene but this is the only one with a problem. it only appears in the render view. Any help would be much appreciated.
ben
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Can't get any Bump channel results

I'm new to Blender and following Blender Guru's donut tutorials and I can't get any results with from the Bump node. I've gone through the steps of the tutorial twice and still nothing. What am I doing wrong?
kariomart
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Wall Bump nodes wrong colour

I want to give some detail to a wall old plaster holes etc. I added a image texture for the wallpaper added the bump nodes etc but the bump areas are the same colour as the image texture wallpaper, Q: I would like the bumps to be a different col how…
Jason
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spikes coming out of donut mesh after doing bump

This happened when I tried to do bumps on my mesh. Do anyone know how til fix it? Thanks in advanced :)
Maaske
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2 answers

No color on donut after applying bump and displacement

After following the part 4, level 2 tutorial about bump and displacement the colors on my donut disappeared. Do anyone know how to fix it? Thanks in advanced.
Maaske
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Bumping / displacement with low-poly rock

Good afternoon. I made a low poly rock and try to apply a texture with a bump effect, but the result looks not very realistic. What could be the problem? ------------------------- update -------------------------------------------- I changed…
mraklbrw
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