Blueprint light appears in triangular patches and does not cast shadows

Hi there,
When I move a light, before rebuilding, it shows up in triangular patches. While I don’t understand this, it’s fine with me, except that when a light is in a blueprint, rebuilding doesn’t fix it.

In picture below, I simply dragged CeilingLight blueprint onto stage (and increased brightness to make problem more evident). This occurs during gameplay as well, and light lights up objects, but doesn’t cast any shadows, as can be seen by blocks.

This was also case with a light in a blueprint that I created.

Any thoughts?

Hi Trekopep!

Could you supply a screen of your light setup? Also do you use distance field shadows?

It’s definitely problem of dynamic lighting (since it’s only visible for movable lights - in your case in blueprints). Also please tell me whether you are using BSP for level geometry or this is custom meshes?

Cheers

RomanL,
Allow Mesh Distance Field Representations in Project Settings is not checked. objects used in game are all static meshes taken from default assets. (I started out using just default Rolling Ball Blueprint Game. only thing I’ve really changed is materials.)

And yes, I agree it’s a problem with dynamic lighting. I changed light in blueprint to static, just to be sure, and it came out correctly, as shown below.

Is light setup below what you were for?

26243-ceilinglamplightdetails.png

26244-ceilinglampstaticlighting.png

Hi!

I did some research, but couldn’t reproduce that bug with Rolling Template. Here is same setup as yours:

As you see I got fancy shadowing as it should be. So taking this inot account I suppose it could be your custom Material. Could you post here a screen of your Parent material setup, that you’ve used?

Cheers

Nope, that’s not it. I made a new rolling ball project and did nothing but add Blueprint_CeilingLight asset to stage and increase its brightness. (It wasn’t working before I increased brightness either. I just wanted it to be more visible.)

I don’t know a whole lot about hardware of computers and what programs need, but could this have something to do with my graphics card? Or something else CPU related?

Hmm…

Yeah, it seems like your GPU is not processing all instructions well from this point. Please could you name your GPU card (and whether it is intergrated or not), version of Unreal and maybe try to reproduce that scene on another hardware?

If it’s screenshot from Epic scalability settings enabled, shadows from ball and blocks looks awkward, like your GPU has a really small stencil buffer. But that’s just an assumption.

Cheers

Again, I don’t know too much about hardware side of my computer. Is picture below information you want?

Also, I’m using Unreal version 4.4.3.

And lastly, scalability settings weren’t all set to epic (because my computer doesn’t handle it quite as well, which may be related to this issue). When they’re set to epic, everything looks smooth and nice, though light issue persists.

26561-computergraphicsdata.png

I don’t have an option to test engine on same hardware, but according to this document your hardware (in this case - GPU) doesn’t meet recommended requirements:

P.S. We’ve tested engine on with Intel HD 3000 chipset and it is totally incapable of handling engine (around 3fps in viewport). Many of built-in graphic cards lacks instructions, external pixel and vertex buffers, etc. so I think that could be thing.

Cheers

Hi Trekopep,

We have some machines here that we can test on. I could use some more information, though. Go to Apple Menu > About This Mac, and copy/paste all information there (including OS version, minus serial number). Then, open System Report and under Graphics/Displays, see if there are more than one graphics cards listed. Thanks!

,

OS X

Version 10.9.4

Build 13E28

Processor 2.9 GHz Intel Core i7

Memory 8 GB 1600 MHz DDR3

Startup Disk Macintosh HD

Graphics/Display information is in picture posted above. There appears to only be one graphics card.

This bug has already been identified and will be fixed in 4.7: Shadows in Unreal for OSX not showing correctly - Rendering - Epic Developer Community Forums .

Spectacular. Thanks!