Importing huge dwg 3dmax

Corona Corona Common General CG Discussion
1

hi,

i’m going crazy to import a huge set of dwg (the building is approx 6000m2 * 3floor) … i think the problem is the level of detail of the drawing, infact That is approx 1: 1 …
here there is an example …
i can not find a good choice to import all the set of drawing, considering That All the windows are blocks and modify them is pretty impossible (too much time … there is no time), in your opinion what is best solution?
i’ve already try to import and attach dwg, but when i’m going to draw (it’s a basic draw with line and vertex snap) max freeze and becames sloooooww!!

Thanks

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2

Do a pre-clean in ACAD (or wherever) and most important: don´t import hatches :smiley: Can only tell from the detail you attached. You may convert hatches to fillings so they arrive as polys in max.

Good Luck

3

The only solution is to clean up the dwg. Not other solution
Also, better a few layers, with a lot of lines inside.
Don’t create too much layers.

4

Hi thanks for the answer.
Usually when I import a cad file my workflow is to purge and verify and deleting all the hatch from the drawings, the next step is move all into one layer with all blocks exploded.
After all of this steps the result is a file of 1mb but still impossible to use in max, maybe there are too much little curve in the facade system/door/finiture…
The only way is to put under separated layer this object, onestley is the first time that I have this problem with the import.
Thanks for the help.

5

Hi. Did you check the distance from drawing origin (0;0;0). If it’s to far away Max will react in a severe way.

Another thing could be if your import is set to “Entity” instead of layer. To many object makes max choke.

Hope it helps

6

use join command to join all the lines into a single poly line (join or j )

7

You can use ucs command in Autocad to move the oırigin to a point in drawing where it would not impact the max file…

8

I find that viewport performance increases dramatically when you convert your VIZBlocks to splines.

9

hi,

thanks for the help, the drawings are already set on the origin and the blocks are exploded to put all under one layer.

10

It looks to me like the cad has been generated from Revit. Could you not get hold of the revit file?
I might be wrong but the detail indicated looks like something revit would shove out.

11

the drawing it’s all made by the office where i’m working…it’s alla autocad

12

Kudos on putting that much detail in an autocad drawing!! Can i ask why you dont use revit? Just out of curiosity?

13

Because… i dont know why!:slight_smile:

14

And how do you proceed from there? I tried that regulary but the current UCS is ignored when importing/linking into max.

If you do a wblock of the entire drawing, the objects are indeed at the UCS origin but pivots of blocks are still on their old position, what causes the same inaccuracy problems. I always ended in movin stuff to zero. Would you mind to share your trick?

Good Luck

15

finally i’ve found the solution, the problem was the adaptive degradation…