Linear Light Source II

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Viewing 14 posts - 31 through 44 (of 44 total)
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  • #14038
    Jkzimmjkzimm
    Participant

    🙂  Hmm,,,, topic is linear lights /  ways to make in Envisioneer / multiple lights increase render time / bld file transfers intact lights / render time is cut in half with better computer / array copy – elevate can work as good as fixed light source / splitting views into plan and 3D help place lights /  having 2 screens in portrait vs landscape mode is interesting way to adjust views……

    Seems to me that ALL post are on topic . 🙂

    Jack

    • This reply was modified 2 months ago by Jkzimmjkzimm.
    #14044
    Conweconwe
    Participant

    🙂 That’s why i created the second topic called (computer systems carried over from linear lights) cause i didn’t know how far off topic i should go.

     

    Conrad

    #14045
    Jkzimmjkzimm
    Participant

    I have ‘off topic syndrome ‘  , very rare, nothing can be done to cure it.

    So, no problem on my end.

     

    Z

    #14046
    Conweconwe
    Participant

    Hey Jack,

    Good to know!

    Here is a rope lighting that I created the blue looks good but the purple/pink combo wants to shine to far and not stay inside the member.

    Any thoughts on what might be wrong?

    Conrad

    Attachments:
    #14049
    Jkzimmjkzimm
    Participant

    That Strip Light only works if it has a cove in front of it to contain the light.

    Cadsoft produced a LED light. It is on the BIM Catalog page.  Give it a try. I haven’t downloaded it yet.

    https://www.cadsoft.com/bim-catalogs/

    EDIT …. I seems that right now the Catalog is mixed up on that link. The LED light is Closet Accessories and Cl one is the actual LED light.

    Jack

    • This reply was modified 2 months ago by Jkzimmjkzimm.
    #14080
    JRVJRV
    Participant

    OP, here. So, back on-topic (ahem!)

    Knowing that Cadsoft’s new LED Strip Light download is really more of a rope light, I added it to the catalog regardless and placed one in my dark, dismal living room to see what would happen. Placed it alongside one of the squished fluorescent lights I’d been using.

    [attachment file=”14081″]

    So, why, when I click “Insert into Content,” do I get the above line in the finished post instead of an inline image? Oh well, see attachment below.

    Yes, there’s the distracting dim/bright/dim/bright/dim/bright/dim effect I’d expected. Placing 1 little light is all I had time for tonight. The X/Y/Z axes and elevation parametrics, alas, don’t match those of the fluorescent fixtures for some reason (why???), so I’ll have to calculate elevations for the sloped ceiling all over again.

    But more than enough whining.

    I did a quickie render, and the LED Strip Light actually casts light!! So maybe I’ll make one more pass at this nighttime render and see if I can get something usable.

    But back to the original wishlist item posed in this thread (and its predecessor)…we really need a true, linear light source in Env to model LEDs, and old-school neon and fluorescents.

    And that will enable crazy LED fixtures in the Catalog like this that can use the newfangled linear light source–

    See the source image

    • This reply was modified 2 months ago by JRVJRV.
    • This reply was modified 2 months ago by JRVJRV.
    • This reply was modified 2 months ago by JRVJRV.
    Attachments:
    #14090
    JRVJRV
    Participant

    OK, I’m a liar: I said I was DUH-UH-UHN with nightime renderings of this space. Then Cadsoft added their LED Light Strip, which actually casts light! So, against better judgment, I tried again.

    The wall sparklies are back with a vengeance! Primary culprit is the ceiling fan…with all of 2% reflection. Other culprits remain unidentified at this writing.

    I tried hiding the light/dark/light phenomenon inherent in the new downloadable Cadsoft LED fixture by elevating the LED Light Strips inside of the non-light-casting squished fluorescent fixtures already placed. Errr…marginally successful.

    Couple things are on me: The Cadsoft LED Light Strip I added on the ceiling beam on the far side of the see-thru fireplace’s chimney, facing the camera, was a few inches too long. And the nearest LED Light Strip was a couple feet too low due to a major miscalculation on my part. (See previous whining about ceiling fixtures not automagically snapping to ceilings like I’d expect them to, instead of an arbitrary distance above finish floor.)

    The horrific tape-and-float job between 100% coplanar sheetrock surfaces at the opening on the left side? All on the virtual sheetrock contractor: Cadsoft.

    AAAAAND, it took about 6.5 hours to render this, instead of about an hour before the LED fixtures were added. (See previous whinings about render times in Env 15, inability to offload to otherwise idle PCs, and/or to Cadsoft cloud for a reasonable price.)

    So I’m no longer DUH-UH-UHN with this render. Now, I’m DUH-UH-UH-UH-UH-UHN. (3 more UH’s.)

    true linear light source that renders as ONE light source for each of 18 fixtures instead of (in this case) 86 point light sources across the 2 rooms, would go a long way to fixing rendering time. And at least as importantly, lighting accuracy!

    To be fair, I don’t know if other high- or low-end rendering software has solved linear light sources. But it certainly needs solving.

    Fixing 2% reflectivity that casts acne all over nearby wall surfaces is a Cadsoft problem.

    Offloading rendering to local or cloud computers would help a lot, too, of course, if only that was an option!

    The good news: I’m satisfied that this will be pretty cool lighting in real life, even if I can’t render it to save my life in Env 15.

    Now, on to fixing the tasteless babysh!t yellow fireplace brick. Can’t blame that on Cadsoft. On the contrary, Cadsoft did a pretty good job rendering it in all its awfulness. No, that’s some 1980’s architect’s fault. It’s my job to fix that.

    Attachments:
    #14092
    Conweconwe
    Participant

    JRV,

    Looks like it; just tell them there is a HUGE SPARKLY JEWEL hidden somewhere that’s casting reflections throughout the house. Just Kidding!

    Wish your automagically would happen, would be like a dream, as it seems all the houses want a fancy cathedral ceiling.

    How big is this BLD. for this particular project if you could post it on here maybe somebody could give you an idea on what’s wrong with the magic spots on the wall, I would take a look at it for you.

    Your right it’s a good render those bricks would not be my style either.

    Kinda curious what quality and what size do you have your render set to because 6.5 hours is kinda long i did a couple of those back when i was on my laptop and i needed the highest quality shot of a interior scene and it took my computer that long but now i like stay away from those long ones if i at all possibly can, would rather do a VR, Did one on  a doctors house and now I’m below 2  hours for (this was the best possible) one high 7840 x 5860 Both quality turned to 5 (ray trace quality) it did like 386 small tiles and popped right through them. will post it one of these days on my topic with exterior views (i wouldn’t have had to but wanted to do a test run since this kitchen was loaded) I’m still dreaming of my rendering Que: preset 6renders before you stop for day, wake up grab coffee and have 6 renders waiting to be saved to file. Would that be possible don’t know, like i said I’m dreaming .

    Conrad

    #14096
    JRVJRV
    Participant

    Conrad, thanks, but, um, I lied again. I’m so ashamed.

    Every time I think I’m duh-uh-uh-uh-uhn…I try one more thing.

    And this time I discovered root cause! It’s the friggin’ fluorescents.

    On a hunch, I selected all my original squished fluorescents and chose “Lights Off” from the context menu. But left them there to look all uniformly lit up and stuff like that which the official “LED Strip Light” does not manage to do. Fixed the boo-boos I mentioned in my last post, then rendered again.

    LivingRoom06.png is the surprisingly appealing result (brick notwithstanding). It has that sort-of 1980s-Star-Trek:-The-Next-Generation look I’m after. (And, aren’t we all?) (Make it so, Number One.) (But my friends call me Number Two.)

    The bright/dim/bright/dim/bright effect is still there. Not OK, but much more OK than what I started with.

    Off-topic aside: I read somewhere that some of the pipes and ducts in the ST:TNG sets were labeled “GNDN”. Apparently, that stood for “Goes Nowhere, Does Nothing.”

    Something about those evillllll fluorescent fixtures (a) casts ZERO light, except (b) in tiny little dots that look like a 1970s disco ball and (c) reflect wildly on any 2% reflective surface. Now, disco is a mere few years prior to ST:TNG, and while well within bounds of my misspent youth, completely unacceptable. ST:TNG was awesome. Disco sucked.

    Buoyed by my newfound discovery, I set out to prove the fluorescents were responsible. And did.

    TrivialPreview.png shows a trivial model illuminated solely by “Fluorescent Ceiling Office Fixture”. This is the fixture I squished to make my first attempt at LED strip lighting. These are unsquished so as to rule out coefficient of squishiness as a contributing factor.

    And TrivialRender.jpg is how it rendered. Rather high contrast, wouldn’t you say? Surfaces are either sparkly for reasons known only to the rendering engine, or Vanta Black(r), or Luminous.

    I don’t know if rendering time improved without the light-sucking-disco-ball fluorescents because I left it running overnight, and I was so excited by the output I forgot to check. Suspect it was better, but don’t know.

    Cadsoft, pleeeeeease fix those seriously broken fluorescent lights in the Catalog! I’ve burned a TON of time on this.

    Now, about that brick…

    Attachments:
    #14100
    Conweconwe
    Participant

    Good Job JRV,

    Looks great!

    Conrad

    #14117
    JRVJRV
    Participant

    Thank you, Conrad.

    #14139
    Conweconwe
    Participant

    Congrats to you JRV for the longest topic on the new community and the most veiws in two years 🙂

    Had a little extra time today and wanted to look this up cause i figured it had to be pretty far up the list.

    Just and interesting statistic for me. 🙂

    Conrad

    #14172
    JRVJRV
    Participant

    Thanks, Conrad! And this was just the sequel of the “Linear Light Source” topic, which I did not know at the time I’d not be able to continue to post to due to forum authentication problems also reported by others. And hopefully now resolved, as mine appears to be.

    Now to make this thread even longer…

    It’s become really obvious as I’ve worked with “11w LED Strip Light 24 inch” that we need to be able to do all the things with LED light strips that we do with other objects. Stretch them, curve them, add nodes, convert them to surfaces…basically, emulate digitally what we could do with a roll of analog LED tape.

    In my case, I have created a rectangular Floor Surface, elevated it and used it as a fireplace mantel in my model. Then rotated it something degrees off the orthogonal chimney (see attachment). Then stretched, rotated, shrunk, stretched again, rotated again…until I got it…ermmm…maybe about right. Need to see the render.

    And upon whose upper face I want to add recessed strip LEDs behind a frosted lens to wash the chimney and tchotchkes placed on the mantle.

    But I doubt I’ll ever get “11w LED Strip Light 24 inch” to follow my Dee-Zine. I can do it eventually by customizing the strip light to fit the rectangle, rotated back to orthogonal temporarily for convenience in placement. When finished, rotate it back where I want it.

    I know that.

    But what if…just what if…I could DRAW the light strip into my model and have it do what the FIXTURE needs to do to work with MY model? And have it adjust as I adjust the size and rotation of the mantel object?

    If they were true “Linear Light Sources” like I’ve been requesting, they would.

    But since they’re multiple, equally-spaced, point light sources within a narrow rectangular outline, and 24″ long, like Cadsoft’s LED strip light imitations-within-the-limitations of Env 15, and mostly unaware of their virtual surrounding objects, I will need to calculate point light locations and add additional point light sources as needed for light strips on each of the irregular sides. And the non-orthogonal mantle wraps around 3 sides of the chimney. So this will be non-trivial. And will likely have to be revised a few times after I see the render and view from more viewpoints.

    (All of which probably taking almost as long as it took to write this post! But it’s worth the investment; at least if Cadsoft is listening.)

    I still have a road ahead to get this mantle design done the way I Envisioned it. And Gad-forbid if I want to make any adjustments after I see the render!

    Flashback: In the late 1990s, when I was IT Director of a major Houston TX architecture firm I worked for at the time, pushing them to adopt then-nascent 3D CAD, the designers’ number one objection was that they didn’t want software to dictate what they could envision (small ‘e’).

    Flashforward (and poetic justice): 30-ish years later, that’s exactly the conundrum that ex-architect-now-IT-consultant me is faced with…while using a 2020 design tool named Envisioneer (capital ‘E’)!

    Sure would be easier for me to forget all this Dee-Zine stuff, rotate that mantle back to orthogonal, and calculate its outside dimensions on a 2′ module for the light strip I want to recess an inch or so back from its edge.

    “11w LED Strip Light 24 inch” is better than nothing, which is what Env 15 ships with. But it’s still–forgive me–a lame hack. Fine for cove lights or under-cabinet lights, maybe. But not an LED tape in any way.

    Ironic that in my misspent, pencil-on-vellum, architect youth, if I designed something that was impossible to build, my go-to, tension-diffusing, self-effacing jobsite joke when talking to the superintendent was, “Well, I don’t know why it’s so hard for you to BUILD; it was real easy for me to DRAW.” Then everyone belly-laughs, while the architect escapes getting punched out.

    Cadsoft: With Envisioneer, it’s too often the opposite: Easy to build, hard to draw. Please provide a usable, Dee-Zine-friendly, LED tape. As easy-breezy as graphite-on-yellow trash paper, constrained only by the geometry of the object in which it’s placed, and the imagination of the architect.

    Attachments:
    #14180
    Conweconwe
    Participant

    Yeah with lighting, I think there’s an endless amount of different lights that would be nice to have.

    But dream big and maybe cadsoft will surprise you in the next update  never know 🙂

    They gave us corner windows and now we can span breaks in the wall. There was some great stuff in that last update, and i look forward to the next for all the new toys they’ll have for us. I mean before the last update I’d never even heard of bake lighting (not that i use it as i didn’t get the chance yet) But it’s still the idea that’s what is next??

    • This reply was modified 2 months ago by Conweconwe.
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