gpenelton Posted March 21, 2020 Share Posted March 21, 2020 I am trying to create my first custom light fixture. I have saved the fixture as a new electrical symbol, and have given it a light source value of 1200 lumens. I have also assigned the light bulb portion of the fixture a "Lighting White" material, which gives it emissivity. My question is, how do I get CA to turn off the emissivity when the light is turned off, similar to the stock CA pot fixtures shown in the attached screenshots? Or is there a different way of creating the fixture? Thanks in advance Link to comment Share on other sites More sharing options...
Chopsaw Posted March 21, 2020 Share Posted March 21, 2020 There are two materials for "Lighting White" which can be used in light fixtures that you need to be turned on all the time or fixtures that are used in non defined rooms that need to be on in daylight conditions. Then there is "Default Glass (Lights): Lighting White" found in Material Defaults that will respond to the light being turned on or off as well as the Sunlight being toggled off. Link to comment Share on other sites More sharing options...
gpenelton Posted March 21, 2020 Author Share Posted March 21, 2020 (edited) Thanks Chopsaw! I still cannot get it to work however. I have assigned the Lighting White material to the bulb, but it still remains emissive when the light is turned off. What am I doing wrong? Edited March 21, 2020 by gpenelton Added information Link to comment Share on other sites More sharing options...
robdyck Posted March 21, 2020 Share Posted March 21, 2020 Can you post the plan? Link to comment Share on other sites More sharing options...
TheKitchenAbode Posted March 21, 2020 Share Posted March 21, 2020 Emissive is independent of the light, it's a material setting that makes it seem as a light source. The only way to turn it off is to open up the light bulbs material DBX and reduce it or set it to zero. Link to comment Share on other sites More sharing options...
gpenelton Posted March 21, 2020 Author Share Posted March 21, 2020 I'm afraid you lost me Graham. Are you saying that I can't have my light fixture react the same way as the stock CA fixtures? Link to comment Share on other sites More sharing options...
gpenelton Posted March 21, 2020 Author Share Posted March 21, 2020 18 minutes ago, robdyck said: Can you post the plan? Here you go Robert... Light Test.plan Link to comment Share on other sites More sharing options...
robdyck Posted March 21, 2020 Share Posted March 21, 2020 25 minutes ago, gpenelton said: I'm afraid you lost me Graham. Are you saying that I can't have my light fixture react the same way as the stock CA fixtures? He's saying emissivity isn't the way to control the lighting. Link to comment Share on other sites More sharing options...
Chopsaw Posted March 21, 2020 Share Posted March 21, 2020 Give this a try, Sorry I stepped out for a bit there. Light Test Chopped.plan Link to comment Share on other sites More sharing options...
TheKitchenAbode Posted March 21, 2020 Share Posted March 21, 2020 24 minutes ago, gpenelton said: I'm afraid you lost me Graham. Are you saying that I can't have my light fixture react the same way as the stock CA fixtures? No, just that a materials emissive property is independent of the light, it does not turn on or off when you turn he light on or off. There are times when it may appear as such but that is because the light fixtures actual light source is reacting with the materials emissive setting. Link to comment Share on other sites More sharing options...
Chopsaw Posted March 21, 2020 Share Posted March 21, 2020 2 minutes ago, TheKitchenAbode said: No, just that a materials emissive property is independent of the light, it does not turn on or off when you turn he light on or off. There are times when it may appear as such but that is because the light fixtures actual light source is reacting with the materials emissive setting. Not so sure that is entirely true Graham, the Default Lighting White does behave differently than the Lighting White. Link to comment Share on other sites More sharing options...
gpenelton Posted March 21, 2020 Author Share Posted March 21, 2020 16 minutes ago, Chopsaw said: Give this a try, Sorry I stepped out for a bit there. Light Test Chopped.plan That's it Chopsaw, Thanks. My mistake was I was selecting the Lighting White from the Library Materials instead of the Material Defaults. Thanks to everyone for their help. Link to comment Share on other sites More sharing options...
TheKitchenAbode Posted March 21, 2020 Share Posted March 21, 2020 1 minute ago, Chopsaw said: Not so sure that is entirely true Graham, the Default Lighting White does behave differently than the Lighting White. Agree, there are a number of factors that will effect a materials emissive appearance/behavior. Color, transparency, texture and if the material itself is being additionally lit by another light source. Link to comment Share on other sites More sharing options...
robdyck Posted March 21, 2020 Share Posted March 21, 2020 48 minutes ago, gpenelton said: Here you go Robert... Light Test.plan I've made some adjustments for your comparison. 1. adjust vertical offset 2. adjust light bulb material 3. adjusted vertical sizing 4. adjusted lighting of point light 5. added a 2nd light source, spot light. Pendant Eglo Loncino.calibz I forgot to turn of the emissivity of the light bulb material...oops. Link to comment Share on other sites More sharing options...
gpenelton Posted March 21, 2020 Author Share Posted March 21, 2020 1 hour ago, robdyck said: I've made some adjustments for your comparison. 1. adjust vertical offset 2. adjust light bulb material 3. adjusted vertical sizing 4. adjusted lighting of point light 5. added a 2nd light source, spot light. Pendant Eglo Loncino.calibz I forgot to turn of the emissivity of the light bulb material...oops. Thanks Robert - I will have to play around some more. Chopsaw actually solved the problem for me - see above. Is it just me, or are there a lot of Canadians on this forum? I'm from Winnipeg myself.... Link to comment Share on other sites More sharing options...
touriafuji Posted November 8, 2022 Share Posted November 8, 2022 You don't need expensive or hard-to-find materials to make a good light fixture. Previous technology focused on incandescent bulbs, which are very hot and consume a lot of currents. Current homebuilders have economical LED lamps that produce little heat, which allows for a simplified design. To make a lamp in quality, not inferior to industrial samples, you will need scraps of metal tubes, steel wire with a diameter of 1.5-2.5 mm, galvanized steel sheet thickness of 0.4-1 mm, and inexpensive plastic products. You can buy a light bulb here https://www.amazon.com/smart-light-bulbs-wifi-bluetooth/dp/B09K38ZXYG. You have a lot of options. 1 Link to comment Share on other sites More sharing options...
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