Daylight system loses perspective viewports??

[Gaius Lallus]

Hello everyone,

I would like to know if any of you have bumped into a similar incident: whenever in a scene I apply a daylight system I lose my perspective and/or camera views. To be more exact, all geometry just disappears. I have tried a number of different settings, but have been unable to remedy this. It doesn't matter what sort of display I choose for the viewport. Until I delete the light in question all I see is grey. I've tried installing new drivers for my graphic card to no avail. Funny enough the same viewport renders just fine. It's just a bit difficult to see what one is trying to render if nothing is displayed in the viewport...


I also tried asking Autodesk if they are aware of such a problem, but they refuse to answer, since I am not a subscriber for their Autodesk Subscription Program. I did pay quite a lot of money to get the program in the first place. I suppose I cannot expect to get a working product...

Oddly enough, since if I were to buy a car and suppose every time I tried turning the headlights on my winshield went dark. I think it would be considered weird were the manufacturer to refrain from even commenting until I paid them.

Oh well, another reason to consider different manufacturers...

Anyway - sorry for the ranting. I would be most appreciative were someone to have any suggestions about what to do about this.

Thank you in advance,

Gaius

[Xavier Garcia, Jr.]

Are you sure it's not just that when you add the sunlight system - the physical scale of the sun washes everything out? I had this happen before until I learned to set my exposure control to or just a little under the physical scale of the sun. Another tip is to hit F4 to go into shaded wire frame view mode. Even if the screen look swashed out the geometry will at least show up with wire frames. Hope that helps. If it doesn't post again.

Xavier

[Evert Vandenberghe]

check the viewport clipping settings

(or set viewport lighting to default 1 light)

rgds

nisus

[Alex Bicalho]

Hi Gaius,

When working with very large unit systems (meters, Kilometers, etc) adding a daylight system will alter the scene bounding box making it larger than your objects. This will throw away the computations for the clipping planes of perspective viewports, placing objects outside of the visible range.

There are a couple of workarounds for this issue:

- Adjust your viewport clipping planes: right-click the viewport label, choose Viewport Clipping, then adjust the arrows till your objects are visible.
- Add a camera and change to a camera view - cameras have better built in clipping planes, and you can ajust them visually
- Rescale your scene to make it larger: start a new VIZ scene, set System Units to Inches, merge your scene in it. Then you can set Display Units to meters (or the units you were working with) and you can then work on the scene correctly.

Hope this helps,

Alexander

[Gaius Lallus]

Thank you Alexander! Thank you all, who took the time to answer me. Such an nice thing to notice that there still are people who will help out without charging a mothly fee just for asking.

I only had time to check it out today, but the problem was instantly solved.

The problem was indeed due to viewport clipping settings.
Thanks a million!

Gaius