Speaker A
hey what is happening what is going on Welcome Back to the channel thanks for clicking on the video if you enjoy the video consider subscribing up the channel out a lot bye without further Ado let me show you how to get luck
Glen 3D shows how to add realistic scratches to metallic objects in Blender using bevel, vector math, texture, and color ramp nodes in the shader editor.
Key Takeaways
- Procedural scratches can be created entirely with shader nodes, without sculpting or manual painting
- Combining bevel, geometry normals, and a grunge texture produces convincing edge wear on metal
- A Math node adds a simple control slider to adjust how strong the scratches appear
What the video covers
- Creates a cube and sets up a new material in Blender's Shading workspace with metallic set to maximum
- Adds a Bevel node (radius 16) to give edges a worn, rounded look
- Uses a Geometry node's Normal output with a Vector Math Dot Product node to isolate edges and surface areas where scratches appear
- Loads a scratch/grunge image texture and connects its color output into the bevel radius to drive scratch placement
- Connects the texture to the Base Color and feeds the Principled BSDF into the Material Output
- Uses a Mix RGB node with adjusted color levels to sharpen the scratch pattern
- Adds a Math node set to Divide to control the intensity of the scratches
- Shows how adjusting the Math node value increases or decreases scratch visibility
- Suggests using Ctrl+T on a node to expose controls for fine-tuning the effect
- Presents the technique as a quick, simple method for adding wear to objects
Chapters
Full Transcript — Download SRT & Markdown
Speaker A
scratches and that kind of stuff on objects it's really easy to do it's really simple let's get into blend and I'll show you how to do it okay so let's see what I'm gonna do add in a cube so we're gonna
Speaker A
put the scratches on all right then go to shading yeah let's go to something like that click new maybe bring this up make a little bit smaller okay now let's bring the metallic all the way up okay first I'm going to
Speaker A
do is add a bevel node I bring this to 16. okay I know which one of these go control shift click on it so you can preview then just bring this down to here then go shift a geometry node
Speaker A
and then a shift a Vector Mass node plugs in like that dim plug is normal no since the vector then click on ADD oh yeah make it a DOT product and then plug this to the surface okay and then if I go yeah
Speaker A
you can see he's trying to get just something that's what we're looking for I'm just gonna go out here so I'll do what I'll do is I'll leave a link to the texture I'm going to use three you can download it but yeah let
Speaker A
me go shift a type in image texture click down there and then what I'm going to do is look for it so see my pictures covers to go with number eight I mean what you want to do is plug the
Speaker A
color to the radius and if I go here see we're starting to get something happening there so let's plug this into the base color and then plug the bstf into the surface and then what you can just do this
Speaker A
do that press shift a hit and mix RGB node plug it in here and then take this plug it into there and then bring this one up this color in this color all the way down and now you can see we're starting to
Speaker A
get something like that you can see all those luck rough things and no lock scratches so now we need to do today math node plug that in there change this to divide if I zoom in here and go to this
Speaker A
and I do this makes it more makes it less and then we just bring the scene up you can see it looks better okay you can see you can change more more than nothing obviously because there's no value
Speaker A
as you can see there you've got more control now over how much and then lastly you can do if you want just click on this go control t and then it'll this will allow you to control the scratches so hope you enjoyed the
Speaker A
video if you did Smash the like button I'll see you next one
Topics:BlenderBlender tutorialscratchesshader nodesprocedural texturemetallic materialbevel nodeweathering3D modelingGlen 3D
