topic Re: 3D Flat Surface into a 3D Curve Surface AutoCAD in AutoCAD Forum

3D Flat Surface into a 3D Curve Surface AutoCAD

Anonymous — Sat, 24 Apr 2021 19:21:59 GMT

Pls i need help with transforming a 3D flat surface into a 3D curve surface.

Im working on a roof where i am creating a 3D texture, i can put that 3D texture on flat surfaces but i can not put/transform that texture above a flat surface on a curve surface, pls help me. Its for a school project.

Re: 3D Flat Surface into a 3D Curve Surface AutoCAD

Alfred.NESWADBA — Sun, 25 Apr 2021 07:40:36 GMT

Hi,

>> i can put that 3D texture

May I ask what you understand as "3D texture"?

AutoCAD only supports very few procedural textures (marble, noise, speckle) and even these are not really 3D

Most used inside the AutoCAD material library are images which can only be used as 2D textures (with mapping type flat/box/sphere)

- alfred -

Re: 3D Flat Surface into a 3D Curve Surface AutoCAD

Anonymous — Sun, 25 Apr 2021 09:55:07 GMT

Thanks for answering Alfred.

Well, i just expressed myself wrong, i know what 2D textures are but what i tried to say was that i created a texture, not a material texture but a shape texture in 3D, which is that wavy texture in the case, its in the image. I wanted to place that "texture" in a curve surface but i can only put it above flat surfaces 😕

Re: 3D Flat Surface into a 3D Curve Surface AutoCAD

Alfred.NESWADBA — Sun, 25 Apr 2021 10:04:08 GMT

Hi,

>> I wanted to place that "texture" in a curve surface

Ok, understood 😉

Sorry, I can not imagine how to create your wavy geometry onto a curved surface. And the main thought is at least the same as image texture mapping ... how should your waves be distributed onto e.g. a sphere. This is more a mathematical issue or you have a description about how this should be mounted on the surface and how this will be handled when self-intersecting or making waves more stretched or more dense for different situations.

Basically I also see AutoCAD not as the best tool to get this done, maybe 3DS-Max could be the better program for getting this done (maybe, currently I don't know all definitions you have).

- alfred -

Re: 3D Flat Surface into a 3D Curve Surface AutoCAD

Anonymous — Sun, 25 Apr 2021 10:27:52 GMT

Thanks again for answering.

I hope u dont mind i am sending a dwg file with the basements of the problem. I tried some geometric ways but AutoCAD doesnt collaborate with me, i tried to draw splines on the intersection between a circle and an arc but AutoCAD jus doesnt let me do it, if i zoom the intersection it will not be touching the intersection.

Re: 3D Flat Surface into a 3D Curve Surface AutoCAD

Alfred.NESWADBA — Sun, 25 Apr 2021 13:25:31 GMT

Hi,

you should first convert your arcs to one polyline, this makes it easier to extrude this to one surface.

For the 3 rounded areas you need to continue with these arcs along the radius of the roof (if it is one).

Hope this is what you are looking for...

- alfred -