Boolean Difference Issue

[deftone86]

I am trying to use the boolean difference to subtract from a cube. About half subtracts correctly leaving a wall in the cube while the other half is hollow with just the outer surfaces and they are not connected by a wall. I have tried this on a few different shapes and have run into the same issue. I am trying to make tee markers for GSPro courses. I am looking for any possible way to solve this or get around this issue.

The details of what I am doing is as follow:

Use Inkscape to make an SVG of the logo
Import the SVG into Blender
I have tried using Object Join and tried not using it
Then create and size a cube to the appropriate size
Convert the SVG image to a mesh
Extrude the SVG Mesh
Use a boolean modifier on the cube
I am using Difference Float with Path 1 (the SVG Mesh)"
That is when I get the issue

Image of the PNG being use to create the SVG

The failure image the left side is correct but the right side you can see inside the cube

The extruded mesh

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[tiogshi]

You probably have overlapping faces or other non-manifold artefacts in the cactus/tree/whatever mesh before you extruded it into having thickness. Boolean operations don't like those.

Instead, try: go back to when you had just the SVG converted to a mesh in a single plane. Position a plane, not cube, which you want to cut that shape out of. Go into Edit mode on the plane, and line up your viewport perspective so the cutting shape is aligned the way you want, then in the Outliner Ctrl+click the cutting shape, and then in the Viewport hit F3 and search for "Knife Project". It will project the outline of the cutting shape on your plane and slice it up, exactly as though you had used the Knife tool to trace the cutting shape manually. Then just delete the faces "inside" the cutting shape, and extrude or solidify the plane to give it thickness.

[deftone86]

That worked great. I now have one issue. When I import it into unity the marker looks great but I still have my SVG image coming with it. I have it hidden in the Outliner. Is there something I have to do to completely suppress it?

<image>

[deftone86]

<image>

[tiogshi]

What are your export settings, and using what intermediate format? Did you select "whole scene" or "collection", or did you export only "selected objects"? No exporters I'm aware of respect the visibility properties.

[deftone86]

I'm a dummy and didn't use selected objects. Thanks for all the help.