Use a Picture to Select a Vertices?

Christopher_Crowell · February 3, 2021, 8:00am

I want to put these words on this hat and I want them to be 3D. Is there a way I can select vertices based off of the values of this picture? Once I am able to select the vertices, I can handle the rest.

RSEhlers · February 3, 2021, 2:40pm

Not sure about that, but I would recommend that,

You use the text from that image as a displacement map, which needs to be cleaned up, and a Greyscale image with smoothing with a Gaussian Filter…gimp can do that and a close font is Ocean-Regular…
You actually add the font object in blender and shrink-wrap it to the hat…

Christopher_Crowell · February 3, 2021, 2:55pm

Thanks for responding. However, I need to be able to select vertices of a mesh with the values of the image for other projects that are a lot heavier than just adding fonts. I’m just wondering if it’s possible or if I have to hand select (knife) everything

Calandro · February 3, 2021, 3:09pm

You could use the grease pencil tool to convert the image in a grease pencil object, then convert it to a mesh and use a knife project to separate the part you need from the mesh of the hat. Remember to do this in a copy of your hat cause it will cut the geometry.

Christopher_Crowell · February 3, 2021, 3:46pm

Is there an online tutorial for that? I don’t know much about the grease pencil

Calandro · February 3, 2021, 3:49pm

One minute.

Calandro · February 3, 2021, 3:52pm

Here: https://www.youtube.com/watch?v=m5QdBZ5sDG0
Its really simple. Here too: https://www.youtube.com/watch?v=G-vd-9G6BgQ

Calandro · February 3, 2021, 8:02pm

Did it solve your problem? If so, can you mark it as solved? I would like to know if everything went good.

Christopher_Crowell · February 4, 2021, 7:40am

Trying it now.

Christopher_Crowell · February 4, 2021, 10:27am

Thanks a mil!

Calandro · February 4, 2021, 5:36pm

I am really glad you did it! Loved it.