Training Stream - Tracing (Ray Casting) - Dec 20th - Live From Epic HQ

General Announcements
, , ,
1

1200×630 654 KB

**
WHAT**
and will be covering a number of ways available in Unreal Engine 4 to trace/ray cast. Tracing is an integral part of gaining information about the level, state of Actors, or even gaining a reference to an Actor at a location. Beyond this, shaped traces and traces that return everything they hit can be leveraged to determine anything from the number of walls around an object to a target location to if a character can fit through a gap.

WHEN
Tuesday, December 20th @ 2:00PM ET Countdown]

WHERE

WHO

  • Senior Technical Writer -

Archive:

2
  • feeling better already? we hope! or we just hoping he’ll be ok by the 20th?
    • OR was he abducted by aliens & they promised his return by the 20th?
      • We may never know!

But the streams ‘Must’ go On!

  • [MENTION=8] [/MENTION] will there be a stream the 22nd or is that too close to the holidays? or will there be a special stream with wearing Reindeer Antlers n Santa Hats ? :cool:

** great to see this stream is going to happen btw, great subject that needs to be covered. always learning something from these streams. thx **

4

Please could you go over the best practices of use, especially when it comes to which shape may best suit a specific task (e.g. why use a cylinder when a box would work). This may be specific to what you’re trying to achieve but a rough guide would be nice.

Also how expensive each trace is, since I’ve seen people claim on other forums/sites that now we have faster CPUs (than say back in UT '99’s day) trace expense doesn’t matter and to just go nuts with them, which I’ve never been 100% convinced about (from memory they were putting them all on Tick too).

5

[Question] How to manage materials/physical materials with raycast?

6

Great. This came at the right moment as I am currently making the design docs for a game that will heavely make use of raytraces. Will the training stream be focused on Blueprints ?

7

This stream will be OP.

8

Bringing this over from the last forum post:

Can you go over expense of each trace and how to find them in the profiler, as well as best practices of use. If there should be a hard limit to their use and if so, what other options are there available to us.

9

Ah, I didn’t find 's Unreal Christmas Beanie in the Epic Store. :frowning:

10

Its a shame my questions from the previous thread about this event where not handled in the stream :frowning:

Next time please be more clear as to what date a stream is moving too, i stalked the forums for a week when that stream was cancelled to find out when the new one would be, and then yesterday randomly ran into the vid on youtube…