# 1.7 - Shadowcatcher doesnt seem to respond to lightmtl? **URL:** \ **Category:** Issues\ **Created:** [October 30, 2017, 11:43am UTC](https://forums.chaos.com/t/1-7-shadowcatcher-doesnt-seem-to-respond-to-lightmtl/138639 "2017-10-30T11:43:15Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![jpjapers\_1](https://avatars.discourse-cdn.com/v4/letter/j/e9bcb4/32.png) [@jpjapers\_1](https://forums.chaos.com/u/jpjapers_1)\ **Post date:** [October 30, 2017, 11:43am UTC](https://forums.chaos.com/t/1-7-shadowcatcher-doesnt-seem-to-respond-to-lightmtl/138639/1 "2017-10-30T11:43:15Z")
I have some lights set up with a lightmtl and in lightmix they affect the geometry fine but the shadowcatcher doesnt change at all no matter how high i increase the value. Any ideas? Thanks J ---
**Author:** ![PROH](https://avatars.discourse-cdn.com/v4/letter/p/db5fbb/32.png) [@PROH](https://forums.chaos.com/u/PROH)\ **Post date:** [October 30, 2017, 12:05pm UTC](https://forums.chaos.com/t/1-7-shadowcatcher-doesnt-seem-to-respond-to-lightmtl/138639/2 "2017-10-30T12:05:37Z")
Hi. Both Corona-Lights and Corona-LightMtl need to have the “Shadowcatcher illuminator” checkbox activated to illuminate a shadowcather. Hope it helps ---
**Author:** ![jpjapers\_1](https://avatars.discourse-cdn.com/v4/letter/j/e9bcb4/32.png) [@jpjapers\_1](https://forums.chaos.com/u/jpjapers_1)\ **Post date:** [October 30, 2017, 12:07pm UTC](https://forums.chaos.com/t/1-7-shadowcatcher-doesnt-seem-to-respond-to-lightmtl/138639/3 "2017-10-30T12:07:49Z")
> [@PROH](#): > > Hi. Both Corona-Lights and Corona-LightMtl need to have the “Shadowcatcher illuminator” checkbox activated to illuminate a shadowcather. > > Hope it helps Awesome thanks, is that a new thing? Ive never noticed ive had to do that before? ---
**Author:** ![PROH](https://avatars.discourse-cdn.com/v4/letter/p/db5fbb/32.png) [@PROH](https://forums.chaos.com/u/PROH)\ **Post date:** [October 30, 2017, 12:20pm UTC](https://forums.chaos.com/t/1-7-shadowcatcher-doesnt-seem-to-respond-to-lightmtl/138639/4 "2017-10-30T12:20:54Z")
AFAIK it’s been that way always 😃 ---
**Author:** ![jpjapers\_1](https://avatars.discourse-cdn.com/v4/letter/j/e9bcb4/32.png) [@jpjapers\_1](https://forums.chaos.com/u/jpjapers_1)\ **Post date:** [October 30, 2017, 1:13pm UTC](https://forums.chaos.com/t/1-7-shadowcatcher-doesnt-seem-to-respond-to-lightmtl/138639/5 "2017-10-30T13:13:48Z")
Checked the box on the light material and its still not working ☹ ---
**Author:** ![romullus](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/romullus/32/271095_2.png) [@romullus](https://forums.chaos.com/u/romullus)\ **Post date:** [October 30, 2017, 1:15pm UTC](https://forums.chaos.com/t/1-7-shadowcatcher-doesnt-seem-to-respond-to-lightmtl/138639/6 "2017-10-30T13:15:33Z")
Does it not work at all, or not work only with lightmixer? ---
**Author:** ![jpjapers\_1](https://avatars.discourse-cdn.com/v4/letter/j/e9bcb4/32.png) [@jpjapers\_1](https://forums.chaos.com/u/jpjapers_1)\ **Post date:** [October 30, 2017, 1:19pm UTC](https://forums.chaos.com/t/1-7-shadowcatcher-doesnt-seem-to-respond-to-lightmtl/138639/7 "2017-10-30T13:19:22Z")
> [@romullus](#): > > Does it not work at all, or not work only with lightmixer? Only with lightmixer. If i boost the intensity in the material it works fine in the beauty pass but as soon as i check or uncheck the light in lightmix panel it switches to the lightmix pass and returns to not working. Happy to send the file to devs if you cant replicate on your end. ---
**Author:** ![tom\_grimes](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/tom_grimes/32/52842_2.png) [@tom\_grimes](https://forums.chaos.com/u/tom_grimes)\ **Post date:** [October 30, 2017, 1:28pm UTC](https://forums.chaos.com/t/1-7-shadowcatcher-doesnt-seem-to-respond-to-lightmtl/138639/8 "2017-10-30T13:28:21Z")
That would be the situation listed on the helpdesk as a current limitation with LightMix and the Shadowcatcher? [https://coronarenderer.freshdesk.com/support/solutions/articles/12000017218-how-to-use-interactive-lightmix-](https://coronarenderer.freshdesk.com/support/solutions/articles/12000017218-how-to-use-interactive-lightmix-) [https://coronarenderer.freshdesk.com/support/solutions/articles/5000516180-known-bugs-and-limitations](https://coronarenderer.freshdesk.com/support/solutions/articles/5000516180-known-bugs-and-limitations) ---
**Author:** ![jpjapers\_1](https://avatars.discourse-cdn.com/v4/letter/j/e9bcb4/32.png) [@jpjapers\_1](https://forums.chaos.com/u/jpjapers_1)\ **Post date:** [October 30, 2017, 2:17pm UTC](https://forums.chaos.com/t/1-7-shadowcatcher-doesnt-seem-to-respond-to-lightmtl/138639/9 "2017-10-30T14:17:43Z")
> [@TomG](#): > > That would be the situation listed on the helpdesk as a current limitation with LightMix and the Shadowcatcher? > > [https://coronarenderer.freshdesk.com/support/solutions/articles/12000017218-how-to-use-interactive-lightmix-](https://coronarenderer.freshdesk.com/support/solutions/articles/12000017218-how-to-use-interactive-lightmix-) > [https://coronarenderer.freshdesk.com/support/solutions/articles/5000516180-known-bugs-and-limitations](https://coronarenderer.freshdesk.com/support/solutions/articles/5000516180-known-bugs-and-limitations) Thats correct, when you say a limitation. Is that a feature that cannot be implemented because of some kind of restriction or something that is still on the to-do list? ---
**Author:** ![maru](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/maru/32/15975_2.png) [@maru](https://forums.chaos.com/u/maru)\ **Post date:** [October 30, 2017, 2:27pm UTC](https://forums.chaos.com/t/1-7-shadowcatcher-doesnt-seem-to-respond-to-lightmtl/138639/10 "2017-10-30T14:27:03Z")
Can you show an example of what you are getting right now, and explain what you would like to get? There are some other reports about the shadowcatcher, especially when it’s reflective. ---
**Author:** ![PROH](https://avatars.discourse-cdn.com/v4/letter/p/db5fbb/32.png) [@PROH](https://forums.chaos.com/u/PROH)\ **Post date:** [October 30, 2017, 2:34pm UTC](https://forums.chaos.com/t/1-7-shadowcatcher-doesnt-seem-to-respond-to-lightmtl/138639/11 "2017-10-30T14:34:51Z")
@Maru - Try a very simple scene yourself, and I think it’s quite clear what would be expected… ---
**Author:** ![jpjapers\_1](https://avatars.discourse-cdn.com/v4/letter/j/e9bcb4/32.png) [@jpjapers\_1](https://forums.chaos.com/u/jpjapers_1)\ **Post date:** [October 30, 2017, 2:40pm UTC](https://forums.chaos.com/t/1-7-shadowcatcher-doesnt-seem-to-respond-to-lightmtl/138639/12 "2017-10-30T14:40:22Z")
> [@maru](#): > > Can you show an example of what you are getting right now, and explain what you would like to get? > There are some other reports about the shadowcatcher, especially when it’s reflective. Ive attached an image. The first pic is the standard beauty pass. Then when i adjust it in lightmix (increased light to demonstrate) and finally how it should be, achieved by applying the lightmix settings to the scene (different LM setting to middle image) ![result.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/6/8/68902e403edb2f3e05b666c3dcfd8e7c8654f0b8.jpeg) ---
**Author:** ![maru](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/maru/32/15975_2.png) [@maru](https://forums.chaos.com/u/maru)\ **Post date:** [October 31, 2017, 8:32am UTC](https://forums.chaos.com/t/1-7-shadowcatcher-doesnt-seem-to-respond-to-lightmtl/138639/13 "2017-10-31T08:32:53Z")
Sorry, I did not read the thread carefully. Yes, this is the known shadowcatcher+lightmix limitation. I think the main reason is that the shadowcatcher does not follow the same rules as other materials when using the lightmix, ---
**Author:** ![jpjapers\_1](https://avatars.discourse-cdn.com/v4/letter/j/e9bcb4/32.png) [@jpjapers\_1](https://forums.chaos.com/u/jpjapers_1)\ **Post date:** [October 31, 2017, 9:16am UTC](https://forums.chaos.com/t/1-7-shadowcatcher-doesnt-seem-to-respond-to-lightmtl/138639/14 "2017-10-31T09:16:36Z")
> [@maru](#): > > Sorry, I did not read the thread carefully. Yes, this is the known shadowcatcher+lightmix limitation. > I think the main reason is that the shadowcatcher does not follow the same rules as other materials when using the lightmix, Is it something that might work in the future? Its not a dealbreaker for me at all im just curious 👅