Advanced Reflections in CS:GO... and for Source 2? 

normal people in vr: marvels in the futuristic display of motion technology to achieve immersion beyond any other medium philip in vr: *rubs face on metal chair frame*

don't talk to me until I can see the reflection of my nose hairs in the scope of my awp

lmao philip just stares at every single reflection in the sandbox dedication

"There is no science, just nice looking mistakes". That's a great quote. I am gonna remember that.

Source 2 does indeed use parallax corrected cubemaps. You can set them up in the Destinations SDK pretty easily. Many engines support it natively now, including Unity. It's often listed as a 'box extents' field. I wrote my entire Master's dissertation on parallax correction of static cubemaps, inspired by BMCha's video, and came up with ways of doing it against all kinds of advanced geometry by doing wacky shit like passing mesh data into a pixel shader as a texture, extrapolating from that and raycasting against that. I'm using it in my Portal-spinoff Outside Influence, so folks will get to see it whenever I actually manage to finish it.

I understood literally none of this but watched the whole thing to hear your soothing voice

7:27 you dirty chair sniffer

2:41 I've never heard Philip's sarcastic laugh, I'm watching his videos since 2014, oh my god

7:44 coming home drunk and meeting my angry gf

me: wants to sleep. Philip: new video about reflections in source! me: ok who needs sleep anyways...

7:30 O: there's a chair... REFLECTIONS **SNIFF**

Noone: 3kliksphlip: *L O L I W O O D*

Let's face it, Parallax effects on a 3D engine is pretty dope Is the same feeling when you see the 8 lines of Parallax on Shadow of The Beast. Basic? Yeah, but technically, pretty pleasing!

Oof, I spent a great deal trying to get Source to reflect properly. Nice to see someone who at least knows what they are doing.

3:50 the squeaking from walking on a mirror with rubber boots haha

Damn Source 2 has been known about for over a decade and its exciting that it’s finally being released

what about the mirror on gm_construct, or is that something else

I'm sure the slowmo "I'm so sorry baby" was discovered when you were playing the trailer in slowmo just to see EVERY detail

6:51 poor dog

1:30 I'm 99% sure I saw this in a nightmare I had yesterday

Literally no one: 3kliksphilip: I discovered the moon.

Could you start making map creation tutorials again? I remember way back when I was playing source that you had some CS:S map making tutorials, I really loved watching those back then.

They did this effect in titanfall 2, which astonished me the first time seeing it.

I can't wait for the dozen or so videos on reflections and textures fron Philip when half-life alyx releases, going to be a lot of fun.

Thank you for making this! I was wondering how they made this so much!

I love your dedication in examining and explaining anything mapmakers have been doing, you really do them justice

The princess bride, still one of my favourite films of all time. Love the nod in that direction. Keep it up!

The paper quoted at 6:10 for sure is out of research by DONTNOD Entertainment, Paris, for their game Remember Me. Which has more reflection tricks than you can shake a stick at, because it takes place in the rain, a lot of rain, a lot lot of rain. And it runs smoothly on PS3. A lot of environments and setpieces contain parallax corrected cubemaps with added raytraced elements, and... it's locked 30fps on PS3 and Xbox360 - in modified Unreal Engine 3. The raytraced elements are limited to planar billboards, but they push them a little with spheroid mapping of enemy characters, so you basically fit a spheroid to each armature bone and that then vaguely represents the shape of a human, represented by flat billboards again for the purpose of reflection rendering.

The way you knifed that hostage twice, that cracked me up! XD

1:32 when you're trying to run in a dream

Couldn't tell the different reflection methods apart until now, thanks for the examples!

Love how he gets so into these trivial things. Real interesting

nice job getting a good look at the reflections on the chair during the robot repair demo... very impressed!

Parralax corrected cubemaps might screw up right on the edge of floors but if you have screenspace reflections with a Parralax cubemaps backup the ssr would hide the distortion around the edge

God i love this community. I love your videos. Keep it up man. One of my favorite content creators right now!

for propper mirror effect you can create a custom render target texture, and attach it to a render target camera. This is how they did the breen casts in half life life 2, only what you need to do is place the render target camera right infront of the mirror, barely sticking out, and then infront of the texture or as a part of the texture somethign that can blur it slightly. Then apply the texture to the mirror and you'll get essentially what you need. This may slow down the game however, I don't know, I usually only use these for making multiple security cams on multiple screens.

I've looked into parallax corrected cubemaps before and they fall flat when there is an object/occluder between the cubemap origin and the reflective surface. With empty concave scenes like the one shown, it does work pretty well. It's going to be great when real time raytracing becomes the de facto method for reflections and refractions.

Finally, a sequel to making source beautiful.

"Lollywood"

when philip points out new and cool technical features in source like this i feel like someone finally understands me

this is an amazing insight into Source, thank you!

*Spits out milk* _LOLLYWOOD?!_ *Chris Hansen walks into frame* _>To be continued..._

5:17 first time ive ever seen an emoji in captions

Im a new fan and i just want to say that I love your videos! And the other channel

Philip is teaching us the science wise part of the game and its engine. Top notch content. Love it as always.

In the video when I thought you'd given up, I was about to comment and link you the exact video and paper you ended up showing. I came across them while doing a deep dive into the reflections used in Remember Me. I also looked into the 'bilboard' reflections used in that UE tech demo 'Samaritan', that support reflection occlusion. Worth looking into if you haven't already come across it.

So is Lunacy just Valve flexing on us with their fancy new things?

This video gave me motion sickness, lol. Great job philip, amazing video.

I think I understood ‘bout a good 3% of this

Thanks Philip, very educational

I don't remember much of it, but there is a map either in 1.6 or gmod, that you can see your character model in a mirror inside a bathroom, as far as I can remember it was a pretty good reflection

was just binging ur vids and u make a new one :D

1:36 *I DONT KNOW WHAT REFLECTIONS ARE ANY MORE*

Knifing the hostage was hilarious. The "æh" is so fucking funny

I love how you finally get your hands on VR and you start inspecting a chair XD I know it was to see the reflections but damn it made me laugh.

This is weird, i expected it to just be a Render Target texture, much like how cameras worked in HL2

Source has had 3d sky boxes since vanilla, the Eternal Silence mod actually used that feature to combine spaceflight and starbase interiors (which the engine could not handle otherwise)

Wasn't the effect on lunacy used in Titanfall 2? That was in source as well. And I mean the combat simulation place in Ash's stage, and some other maps, but I think that's the most notable one.

Iirc the developers of Guard Duty (the blue shift/opposing force remakes) did a development video on this effect being used for their reflections. It definitely improved the visuals of the test maps they showed off.

My respect to people who still bother working with valves engine, seeing how difficult it is to even do basic stuff in it lol

6:36, 90+ FPS at high resolutions, in stereo, with minimal latency, without dropping frames!😤

That is so fucking cool. This could be used to some really cool visually trippy maps. I'm thinking some Ditko or MC-Escher esque stuff

You just described box-projected cube map reflections. It's a well known technique but has its limitations (your reflections all are technically on planes defined by the box - instead of infinity like in case of standard cube map reflections). There are further extensions which require additional z-component for each cubemap face (and you can do texture space ray marching to calculate more correct projection, instead of box projection). There are also superior techniques (ray tracing, voxel octree cone tracing, SDF reflections, etc.), but also require more computation power.

Some newer engines like unreal have a box reflection capture and a planar reflection capture which is parallax corrected (box reflection).

I wonder if I will be able to just see the difference between real life and a VR game in 10 years

My sleep deprived brain understood nothing. Would watch again.

Boy that robot looks a whole lot less scary once you're out of VR

I have absolutely no idea what is happening in this video but I will still watch the whole thing.

hey philip did you know that when looking at something through prism, I can't remember if this happens when looking at reg reflections, but if you hold a prism up to your eye and look at a far away object it will be flipped, I think this happens when looking at regular reflections too say if you were 20 ft away from a mirror.

Someone posted a corrected parralax cubemap on VDC like 6 yeard ago Edit : should have watched beyond 5:53

This reminds me the AWP's scope reflections were done with cuemaps as well.

I come from the future and use the Source 2 tools in Half-Life: Alyx. You are completely right! Half-Life: Alyx uses Parralax Corrected Cubemaps.

Only in 3kliksphillip videos will you see him get down on his hands and knees to look at the reflection of an office chair.

They've been backporting features for a while, and Source2 versions of some CS:GO maps leaked over a year ago, so its bscly going to happen sooner or later. Considering they call Source2 'done' now prolly sooner.

6:50 - okay. Poor... doggo?

came for the space stayed for the metal chair

Can confirm CS2 reflections look nice

No comments to read :( Oh well, guess I have to slightly enjoy the video without reading others’ opinions. Your videos are great in my opinion.

hey 3kliksphilip, so I have an issue, and I've tried a lot and apparently, some others are having an issue like this, but my pc seems to stutter a lot when gaming csgo, tf2, and online games, not sure if its steam or anything, already tried Malwarebytes, trend micro, CCleaner, and a bunch of other stuff, and I've asked my friends, they are unsure of what it could be, besides my pc or steam. I hope you have an idea about this problem, but don't worry if you don't. love your stuff, keep going and keep being amazing

AAAAAAAAAAND DONE, I have finally watched all of your videos (Including 2kliksphilip and kliksphilip) Man that took ages, I almost considered killing myself after getting below the 2014 mark.

Valve should hire you. I'm not kidding.

It's called Render To Texture. It's one of many tricks used in video games. But it gives you a amazing effect

They must’ve perfected this when they did portal 2

siccc cant wait for source 2

Where are the captions phillip?

This is sooooo Trippyyy omg

I love kliks' videos.

I would love it if kliksphilip would show us how he did everything in the editor, for old times sake.

We finally got parallax corrected cubemaps in Source 1 for Entropy : Zero 2

I remember when I first saw parallax reflections in 2013 with games like Battlefield 4 and Call ot Duty: Ghosts.

Seems you were right 3klikphilip

Well can't they use reflection problem static as you said and combine screen space. Probably keeping players and non static objects in another layer and combine them both? This will show accurate reflection for moving objects and won't recalculate non moving objects again and again?

Whenever I google something 3kliksphilip makes a video on it

How much of a performance hit would you take by removing the single water surface limit from the engine?

*See Lollywood Me : *Nice* FBI : *Nice*

Itd take valve literally one day to add propper paralax corrected cubemaps. There are some forks of the alien swarm sdk with it added to vertexlitgeneric.

no hostages were harmed in the making of this video

1:28 Looks like it’s from doctor strange

I wonder if cone based reflections could be implemented into source 2, they look like cube maps but they're real-time and the source is where the player is, when combined with screen-space reflections you have pretty convincing fake reflections.

It's funny you call it parralax. I just call this box projected cubemaps. And reflection probes that i've worked with in unity have an area ox effect, wich is a box. If you have box projection it uses that box as reference for how it should distor the cubemap. If you set the box size to match your room, then it should work correctly. You can actually see an example of how it works in uncharted 4 and lost legacy in puddles, where the "boxes" all have different sizes, to match the area for the puddle