Engine Features Preview 1/22/2015

[jrapczak]

We just switched our shading model to use a more accurate diffuse model. Previously we were using Lambert diffuse which reflects the same constant color in all directions. It is very simple and has been used in CG for a long time. It is not that physically accurate but is very cheap. For a small cost we can do better. The new model is an energy conserving Burley diffuse model.

We are on 4.5.1. Did you guys do anything more than switch the default diffuse BRDF shader define from Lambertian to Burley? Or are there shader code improvements to go along with this change as well?

Jesse

[iniside]

We are on 4.5.1. Did you guys do anything more than switch the default diffuse BRDF shader define from Lambertian to Burley? Or are there shader code improvements to go along with this change as well?

Jesse

From what I looked at commit, there were some changes all around shader code. It doesn't look like simple switch.

[DamirH]

We show multiple "C++ Classes" folders, one for your project (shown as "Game C++ Classes" in that screenshot, but will just be called "C++ Classes" on release), one for the Engine ("Engine C++ Classes"), and then one for each plugin that has code (eg, "Paper2D C++ Classes").

Each of these contains folders for any modules that belong to that category (you can't really tell that in the screenshot as ShooterGame only has one module with UObject-based classes), and then each of these module folders mirror that modules layout on disk.



It currently only shows UObject-based classes, so you'll only see classes tagged as UCLASS.

Thanks for the info... So, seeing that the Trello roadmap has an entry for showing basically all source classes, I assume that you're moving toward having scripts appear as just another resource type in the Content Browser?

[Jamie Dale]

I assume that you're moving toward having scripts appear as just another resource type in the Content Browser?

Yeah, we don't have a final timeline on this yet, but these changes are phase 1 of a longer-term plan to allow the Content Browser to show you more things (source files, configs, etc).

[Dark-Veil]

You guys should really do a preview of the unified blueprint editor, I'm loving it! Also the new icons for all the different blueprint types is nifty. Its much easier to see one type of Blueprint over another making visually looking for a file much easier! Keep up the good work!

Awesome, glad you like it. I think we are still messing around with the layout and gathering feedback on the obvious/weird things before we showcase it. It will definitely be in 4.7 but we probably won't advertise it much until next week's Engine Features Preview. Maybe we'll show it on Twitch though. Actually we have a lot of cool late additions to 4.7 to talk about.

--Mike

[Mr_SquarePeg]

So three Questions about the new Diffuse shading model.

1. Will this break our existing shaders?

2. Will this be lighter on mobile and other low end devices?

3. When is the new diffuse shading model planned to hit?

[Froyok]

From what I looked at commit, there were some changes all around shader code. It doesn't look like simple switch.

Do you have the link to the git commit ? I would be interested to look at it.

3. When is the new diffuse shading model planned to hit?

I'm also interested about that question, is this planned for 4.7 ?

[Hevedy]

A question about that, is the "New Diffuse Shading Model" in the 4.7.x or will be in the 4.8 or when ?