x

Search in
Sort by:

Question Status:

Search help

  • Simple searches use one or more words. Separate the words with spaces (cat dog) to search cat,dog or both. Separate the words with plus signs (cat +dog) to search for items that may contain cat but must contain dog.
  • You can further refine your search on the search results page, where you can search by keywords, author, topic. These can be combined with each other. Examples
    • cat dog --matches anything with cat,dog or both
    • cat +dog --searches for cat +dog where dog is a mandatory term
    • cat -dog -- searches for cat excluding any result containing dog
    • [cats] —will restrict your search to results with topic named "cats"
    • [cats] [dogs] —will restrict your search to results with both topics, "cats", and "dogs"

Impossible to assign IES for static SpotLight

0

Steps to reproduce: 1. Select SpotLight and make it as Static. As result Light Profiles -> IES Texture combobox disabled. 2. Change from Static to Stationary. IES Texture combobox became enabled. 3. Assign IES texture 4. Change from Stationary to Static back. Texture assigned, and it could be seen in scene.

alt text alt text alt text

Product Version: UE 4.9
Tags:
spotlight1.jpg (90.2 kB)
spotlight2.jpg (93.6 kB)
spotlight3.jpg (263.4 kB)
more ▼

asked Oct 08 '15 at 09:57 AM in Bug Reports

avatar image

shaman4d
36 ● 2 ● 3 ● 4

(comments are locked)
10|2000 characters needed characters left
▼ Viewable by all users
1 answer: sort voted first ▼
0

Hi Shaman4d,

This isn't a bug, per se. IES Profiles cannot be directly applied to a Static Light. These would need to be set to Movable or Stationary since they are using a mask for the lighting.

However, you can assign one and it will not be wiped when using static lighting, but you lose access to adjust the properties and there are artifacts that can be produced from the mask that the IES profile uses.

Here is an example: alt text

With Stationary and Movable you get the nice soft falloff from the mask, where was if you were to use baked static lighting you would get the hard edges that will not result in the same look for the light.

The Lightmap resolution of the meshes below has been set to 512 for each and the IES Profile has been assigned to a Point light.

I did enter a ticket for this to be updated and demonstrated in the documentation with UEDOC-2560.

I hope this helps.

Tim

iescomparison.png (621.2 kB)
more ▼

answered Oct 08 '15 at 05:43 PM

avatar image

Tim Hobson ♦♦ STAFF
49k ● 886 ● 99 ● 875

avatar image shaman4d Oct 11 '15 at 11:31 AM

Hi. Thank you for your such detailed explanation. Now I see the differences. Actually I was confused about this weird logic of assign of IES profile )

avatar image JianzhaoFu Jan 02 '19 at 01:31 PM

Hi, is it any possible to solve this issue? make static light with IES looks the same as dynamic lights. Thanks!

(comments are locked)
10|2000 characters needed characters left
▼ Viewable by all users
Your answer
toggle preview:

Up to 5 attachments (including images) can be used with a maximum of 5.2 MB each and 5.2 MB total.

Follow this question

Once you sign in you will be able to subscribe for any updates here

Answers to this question

Related Questions

IES profile not working

Lightmaps do not save when built using UE4Editor-cmd in 4.14

[Bug Report] Project broken! Can't compile Lightmass, other Project works fine

"Light as if Static" setting not persisted

New static light reflection baking is difficult to work with

after update to 4.8 on mac weird graphical glitches occur

project crash on start up

Building Light stuck at 75%

Capsule shadows not softening on indirect shadows (and other errors)

UE 4.15.0 preview 3 hair shader no AO ?