Hello everyone and Happy New Year,
new to the forum, I have recently been using Me and I am very satisfied with it I think that at the end of the trial period I will buy it
I started to 3D recently and so far I have used fusion 360 and I bought viaCAD 3D but I come from "coreldraw and illustrator" graphics and I do not stick to the "autocad" logic.

I have a question about Me V4 having downloaded the V3 then the V4 and I am surprised at the almost instantaneous speed of the V3
in simple actions (opening the software, extruding a sketch) something that I cannot find on the V4 (jerky display, high startup latency, slow display for a simple extrusion)
I would like to know if other people have the same "problem" because suddenly I prefer to use V3
the software is installed on the same pc: Surface pro 3 / i5 / 8Go / 256Go

Wolfverines

Hi Wolfverines, what is the difference in startup time for you between MoI v3 and v4?

Over here if both are warmed up they each take under a second to launch.

For the case of an extrusion are you talking about dynamic feedback while you are in the process of doing an extrusion? That in particular has some different behavior between v3 and v4. V3 did the extrusion in-process while v4 does it out of process. An out of process calculation has some additional overhead for interprocess communication but it also has better behavior for handling high complexity because it can be interrupted mid calculation. So in v3 if an extrusion was complex and took say 10 seconds to calculate it would go in 10 second jumps while in v4 it is able to interrupt the current calculation and start working on the new input.

"Jerky display" - if you're not referring to a difference in extrusion feedback, that could be some problem with video drivers. Another difference between v3 and v4 is that v3 uses the Direct3D9 interface to the video hardware while MoI v4 uses Direct3D11 instead. It could be possible that your system's video driver has some problem with the D3D11 drivers that isn't present in the D3D9 drivers. You might try updating your video drivers to the latest version available to see if that helps. You could also experiment with setting DisplayThreadLimit=1 inside moi.ini and see if that makes any difference.

Another difference between v3 and v4 in the display is that v4 has a mechanism that caches display data on the video card's VRAM to take advantage of modern cards that have a large quantity of VRAM available. The Surface pro 3 is pretty anemic in its video card horsepower using the Intel integrated video card instead of AMD or Nvidia powered graphics. Maybe the v3 style display that streams all content to the card for every draw could work better with this kind of underpowered graphics hardware because it consumes a lot less memory. You can experiment with turning this new part of the v4 display engine off by changing:

[View]
StaticBufferMaxVRAMToUseMB=0

inside moi.ini . By default it will be StaticBufferMaxVRAMToUseMB= with a blank value after the =, edit it so it has =0 . That will effectively disable the VRAM caching mechanism and it will stream data to the card like v3 did. In theory that should be slower but it has very low memory requirements and I guess I could imagine a case where trying to use too much VRAM could cause a performance penalty with virtual memory swapping.

The other thing that I've seen some inklings of is that with a laptop some mechanisms that use multiple CPU cores that normally increase performance can have some potential to actually decrease performance on a laptop instead if it's getting too hot and is triggering thermal throttling. Also do you see a noticeable difference between when your machine is plugged in versus running on battery?

Let me know if any of the settings above have any noticeable effect. Maybe some things I could turn on by default when the machine has Intel integrated graphics, like not attempt to use VRAM caching at all with Intel. Right now it caps it at a lower level than if you have AMD/Nvidia graphics but maybe the cap should be a little lower.

In general MoI v3 had the same graphics engine design from v1 which was heavily tuned to work with really basic cards even with only 32MB of VRAM. V4 has new stuff in it that boosts things with newer cards but which maybe needs to be shut off for certain cards.

- Michael

Good evening,
Thank you for this very quick answer, I will try the different parameters and I will get back to you.
Fabrice

Hello,
little return to the problem encountered
the surface and the latest version of windows 10 (version 20H2) 64 bits, up to date video card, directx12 (direct3D 12)
intel i5 4300u (4 cpu 1.9 ~ 2.5 Ghz)
8 GB of ram
I measured the software startup time
with V3, instantaneous
with V4, 14 seconds
V3, creation of a rectangle 100x65x50 and extrusion then fillet of 2mm, instantaneous
V4, creation of a rectangle 100x65x50 and extrusion then fillet of 2mm, perspective latency (6-8 seconds)
I noticed when unchecking "snap grid and snap object" the V4 reacted better to the display speed
the changes in moi.ini not (a priori) given improvement.
well nothing serious either just to tell you that I was surprised by the speed of action with the V3 and greatly appreciated working with it compared to software that I could try like ViaCAD 3D pro (good but more " autocad "), PTC element (I really didn't like it), alibre atom 3D (not at all intuitive for my taste)
all that to say that you have made an excellent simple, intuitive and powerful software which corresponds to my way of "drawn"
Regards,
Fabrice

Hi Fabrice, and what versions of V3 and V4 are you running for the comparison?

I mean is it the full retail versions or the 30-day trial versions?

- Michael

for now these are the trial version,
I downloaded the V4 last week and the V3 over a month ago, I continued with the version without "recording" in fact I'm looking for a 3D creation software that corresponds to my way of "drawing" I got used to coreldraw and illustrator software (before they became subscription versions) I tried a lot of software (alibre, PTC, FormZ, sketchup, Rhino (very good but too expensive) 360 fusion (j 'do not like the subscription system which is still expensive) but without really found "shoe to my feet" suddenly I bought viacad 3D pro compared to its price but I can not do very well what I want and then I "fell" on Moi3D ... great software, I also learned that you did by creating rhino exellent software with an interface in the spirit of Illustrator
that we find in Me, moreover I saw that we little personalized the interface and add missing functions (but I will have to learn programming ...)
Fabrice

Hi Fabrice, so the trial version is wrapped with this mechanism called WinLicense which makes it more difficult to be modified to have the time limit removed.

It could be possible that is the source of the performance difference. The V3 30-day trial also has it but it's an older version and maybe I need some adjustments to the newer V4 one to avoid too much performance penalties.

Can you please send me an e-mail at moi@moi3d.com and I will prepare a different kind of v4 trial for you with no WinLicense wrapper but instead with saving disabled. If that behaves better then it would confirm that as the area that I should focus on.

The full release version does not have the WinLicense wrapper on it.

Thanks,
- Michael

I just sent you an email
Fabrice