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Shaded Relief Maps in Blender

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21–27 of 27 posts

Re: Shaded Relief Maps in Blender

#21
post #12

This is really neat. I dabble in woodworking, and the workflow for making these maps is pretty similar to what I do to create the 3D models for CNC caved wooden relief maps: https://imgur.com/a/ZihtlwN

That's beautiful work. Do you have any resources you'd recommend to start learning how to make these?

I'd recommend with simple projects like edge-grain cutting boards and moving up in complexity. I got started making cutting boards, signs, and drink coasters [1]. A cutting board is the kind of project that's easy to start off with, but has a high skill cap if you're trying to make something _very_ nice. Plus they make great gifts.

John Katz-Moses - YouTube channel [2] for learning traditional woodworking (cutting boards, joinery, frame making, etc). He's recently been getting into CNC.

Frank Howarth (also on YouTube [3]) - Resource for woodworking, commonly incorporating CNC with traditional woodworking methods.

Winston Moy (YouTube - [4]) - Go-to for learning how to use the Shapeoko line of routers, but the knowledge on his channel is applicable to any CNC platform. He has lots of parametric modeling tips-and-tricks as well. Lots of ideas for starter projects on a benchtop sized CNC.

I use a Shapeoko Pro for my work, but you can get started at a lower price-point by going with a used Shapeoko 3 to get your feet wet. The "Shapeoko and Nomad Users Group (Unofficial)" group on Facebook [5] has lots of projects, and is a good community for getting support with projects, and finding used machines for sale. There's also the X-Carve platform (that I'm not as familiar with, but they're pretty comparable feature and ability wise).

I'd recommend getting familiar with a parametric 3D modeling suite such as Fusion 360 (which does both CAD and CAM in the same package), which is what I use to generate toolpaths once I've created a reasonable looking topographic model in Blender.

My favorite resource for Fusion 360 is "Fusion 360 School" [6]. It has tons of little tips and tricks. The first videos in the channel are a primer on how to use the the software, assuming zero previous knowledge. 3D printing channels are also a good resource for Fusion 360 knowledge.

[1] - https://www.longtailwoodcraft.com/gallery.html

[2] - https://www.youtube.com/channel/UCXBNF-A7QlYT3tT-B9N4ElA

[3] - https://www.youtube.com/user/urbanTrash

[4] - https://www.youtube.com/channel/UCxdCeHBUOlcCWr6RM8acEog

[5] - https://www.facebook.com/groups/232744457133521

[6] - https://www.youtube.com/channel/UCU7QDqWAeIdCK5aNFXPgX2g

Re: Shaded Relief Maps in Blender

#22

These blender-based shaded relief images have been popping up a fair bit in the geomatics space recently. I really love them, but they are fairly complicated to make. I developed the open-source geospatial platform WhiteboxTools (developed in pure Rust) to help with tasks like this. You can create multi-scale hillshade images with it and the type of shadow model displayed above as well with one click: https://www.whi…

Thanks! I've been looking for an accessible explanation of the hillshade algorithm, without much success.

Re: Shaded Relief Maps in Blender

#23
post #11

For doing this type of work programmatically in R, check out the rayshader package: https://www.rayshader.com It has a high-quality pathtracing renderer built-in ( https://www.rayrender.net ) that only requires a single line of R code to produce results similar to what's offered here (without all the manual work).

That's gorgeous!

Re: Shaded Relief Maps in Blender

#24
post #22

These blender-based shaded relief images have been popping up a fair bit in the geomatics space recently. I really love them, but they are fairly complicated to make. I developed the open-source geospatial platform WhiteboxTools (developed in pure Rust) to help with tasks like this. You can create multi-scale hillshade images with it and the type of shadow model displayed above as well with one click: https://www.whi…

Thanks! I've been looking for an accessible explanation of the hillshade algorithm, without much success.

This explanation is also quite nice: https://pro.arcgis.com/en/pro-app/latest/tool-reference/3d-a...

Re: Shaded Relief Maps in Blender

#25
Does anyone know of code for simplified triangle geometry rendering of dem data? Usually these renderings use the color data from satellite images which blows up storage cost. But simplified geometry might be small enough to both be useful and pretty to look at.

Re: Shaded Relief Maps in Blender

#26
This is awesome. I've got a resin 3d printer which is perfect for small details, I might give that a go. Ironically just as I got a dedicated windows computer beyond my workstation specifically for stuff like fusion 360 and whatnot.

Re: Shaded Relief Maps in Blender

#27
post #23
post #11

For doing this type of work programmatically in R, check out the rayshader package: https://www.rayshader.com It has a high-quality pathtracing renderer built-in ( https://www.rayrender.net ) that only requires a single line of R code to produce results similar to what's offered here (without all the manual work).

That's gorgeous!

Thanks!
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