i work with laser engraving, lalely i got some 3D in net to engraving test but now i want make my own images. To laser engraving don´t need gcode as routers, the laser software just read de grayscale difference between black and wite and adjust the laser power in real time durung engaving. Well, i need only take any jpg grayscale image and transform in a jpg with the texture as this pic.
Yes, if the 3D is shallow and you’re wanting to show it mostly through lighting effects. This is routine old stuff in 3D graphics. It’s called a Bump Map. In Cycles, use an Image Texture with the JPG image, and a Bump node (listed under Vector) whose output is a Normal. Feed that normal to your diffuse/glossy/whatever shaders, and you’ve got it.
Yes, if you need actual 3D to be viewed from close up, viewed sideways . This can be done with a Displacement Modifier. For this, you need a high-res mesh, lots of nodes. Each node can be displaced perpendicularly according to an image’s grayscale value.
For fine detail, it may make sense to avoid a super-high res mesh with millions of nodes. In that case, there are tricks but I’m not sure what’s good offhand atm.
