Unreal Engine 4 Arch-viz Tutorial Course part 4-3 Pool Water and Caustics

[@BATCH3]

Perfectly done! amazing tutorial! thank you!

[@theimageneers5161]

Your most welcome , appreciated

[@nicolaspojmaevich]

amazing video exactly what i was looking for, thanks!

[@theimageneers5161]

Thanks . Our pleasure

[@behzadkhojasteh]

Great work.

[@theimageneers5161]

Many many thanks

[@findyhutasoit5015]

Thank you for this tutorial series!!! Just wondering if the pool was circular how would you avoid that the planar reflection is not affecting the adjacent materials???

[@theimageneers5161]

your most welcome , currently this is part of Planar reflection and we hope epic team will solve this issue , but for such projects its recommended that you use Raytrace instead .

[@expansiondigital]

Excelent tutorial. Thanks. How to get the pool texture. Can you upload the files?

[@theimageneers5161]

Thank you , and yes you can download the caustic texture from here www.dropbox.com/s/9ntr2vufvzhq97w/caustic.7z?dl=0

[@m3dia_offline]

This is an amazing tutorial. I used this method to create a floating box of water that would not have been possible with Unreal's water system since that only works with landscapes. On the other hand can you please re link the caustic texture, the drop box link doesn't seem to work anymore. Thank you.

[@theimageneers5161]

Thank you we appreciate your nice words , and please try to download it from this link www.dropbox.com/s/9ntr2vufvzhq97w/caustic.7z?dl=0

[@m3dia_offline]

@@theimageneers5161 thanks a lot, appreciate it.

[@emergencyDuck]

If your water material shows as default world grid, disable Nanite for the water mesh. Nanite doesn't support translucent materials (yet). EDIT: Also, if your caustics are not appearing, disable Nanite for the bottom of the pool, too.

[@theimageneers5161]

Thank you Joni , appreciate your feedback and yes you are right , hope to see translucency support in nanite very soon 🙂

[@adrenanic5871]

great video! i'm a total novice but do you think it would be hard to make a slatted pool cover system? i can't seem to find anyone who's done it

[@theimageneers5161]

Thank you appreciated , will this to our request lists :)

[@godzil666]

That was one hell of a tutorial! hank you so much for this. I wonder, how you would approach a situation, when the planar reflection totally cover the bottom of the pool, including the caustics? The reflections take over, no matter what setting I use within the Planar Reflection :( Also, my pool is not square, it has a custom look. What can I do with the reflections in such situation, when square reflection actor does not fill the pool correctly? Thanks for your help in advance!!!

[@theimageneers5161]

Your most welcom , appreciated theres is another more advanced technique that we will also do a tutorial on soon , currently you can place the planner or the sphere reflection and build the light to get the reflection effect

[@godzil666]

@@theimageneers5161 Thanks! Will try that.

[@joejohnsoncube]

WOW, great work. I am new to unreal engine rendering just wanted to ask why do all this when there are easier and user friendly software like vray and lumion?

[@theimageneers5161]

thanks , basically UE4 is one of the biggest engine for Developing real-time interactive Arch-Viz presentation with VR and AR and other cool stuff and also Free , Lumion currently is a the quickest software for quick render image with few efforts but with a lots of limitation and also not free

[@joejohnsoncube]

@@theimageneers5161 thanks for the clarification!

[@cristianmartinez1321]

Hey Man this video is amazing! I'm working on pool projects currently and I was wondering something as I am not able to obtain any good result. Is it possible to the see the water movement from inside the water? I mean when you look at the water surface from the inside. My goal is to enter inside the pool in a VR model and when looking to the top be able to visualize the water movement also as you can see it when you are outside the pool! Thanks for those videos

[@theimageneers5161]

Always a pleasure to know that you found our videos useful for your projects , unfortunately we didn't actually do the water volume effect in this tutorial , but we will add your question to our request list to be answered with a tutorial , thanks

[@cristianmartinez1321]

@@theimageneers5161 Thanks man appreciate it!!

[@aescargot]

Hey I don't know if I maybe didn't follow the tutorial correctly, but whenever I hit play the caustics disappear... :(

[@theimageneers5161]

Hi there , can you please double check the light channel and if the directional light is hitting the same channel , also the texture UVW scale in the scene

[@liseherbo9150]

Also i have 2 more comments. i am working very serious with this gift of a course. 1. The second directional light has to be orientered x:0, y: 90 and z:0 to make it cover the whole pool bottom. 2. I discovered that 2 planar reflections cancel each other out. They say it is a bug, but actually when i turn of the window planar reflection i can see pool planar reflection and when i turn pool planar reflection off i can see window planar reflection, but never both at the same time. What can we do about this in real time?? And also in ray tracing and stuff to make show both, any workaround?? I would be grateful for any solution.

[@theimageneers5161]

Am really sorry for the late replay , can you please share which version of unreal your working on and did you try 4.26 and got the same glitch , thanks

[@oberdoofus]

Awesome tuts! I have a small problem with my caustics. It works fine except that it seems to appear to 'pulse' every six seconds i.e. the emissive power seems to flare for half a second and then go back to normal. It gives the appearance that two random patterns are overlapping at regular intervals. Any thoughts?

[@theimageneers5161]

Hi there , thanks , so regarding the caustic issue , Can you please double check the panner node if both of them is connected to the texture coordinate node so they are getting the same if yes , please check also the speed values for both panners ,if you still facing a problem plz let us know thanks

[@oberdoofus]

@@theimageneers5161 hi still facing same problem despite rechecking the above. TBH it's only a minor issue and I am happy to come back to it after i've watched the rest of your most excellent tutorials!

[@theimageneers5161]

@@oberdoofus Thanks for coming back , actually the problem of the cuastic being freezed for a second and start back can be avoided by adding a (rotator) node after the panner with a very low value like .001 on the speed and connect it to the texture sample , this will help get rid of that freeze problem , if not please let us know

[@oberdoofus]

@@theimageneers5161 that fixed it! thanks

[@wookaseek]

@@oberdoofus you can also flip that second caustic texture, so it won't ever overlap with first caustics texture cuz it would be different

[@jaa2412]

Magnific tutorial series! One question, when did you add the second directional lighting?

[@theimageneers5161]

Thank you , basically you add the 2nd directional light when you wanna use it on a separate channel like on our case we have used it to enable the caustics on the pool base but you can add as many directional light if u can change the channel and control where you wanna add it .

[@toapyandfriends]

amazing tutorial...gonna take grass next!🥳

[@theimageneers5161]

Thank you , appreciated :)

[@poststructural-ismlabel561]

same problem here. if i put a non translucent material i have the reflection but with the opacity setting (as you describe in your steps) i dont have the house reflection. Same light set up, same HDRI and sun position. I have like a matte dusty water material

[@theimageneers5161]

one of the things that we missed is to point out that you will need to tick the planer reflection support in the editor project , can you please check if its enabled or no , if u still face the problem please let us know

[@poststructural-ismlabel561]

@@theimageneers5161 works after use another glass material and put the nodes of your material... weird as usual un UE thanks!

[@theimageneers5161]

@@poststructural-ismlabel561 good to know you figured it out thanks for letting us know

[@fularski_com]

How to enable 2 or more planar reflections? In UE5 seems to work only 1.

[@theimageneers5161]

sorry , currently UE support only one planar reflection in real time

[@JanasZoro]

Thank you very much, i have done everything as your tutorial but i have problems with caustics, they do not show, all the walls are in the same light channel one, but i do not understand why they do not show at all even if i increase the light. They just show if i turn off the sunlight Solved: basically the sunsky actor has value of 75000 lux by default, i just went in its blue print and decreased the value to 200 lux.

[@theimageneers5161]

Thank you for sharing were glade you have managed to solve it , thanks

[@Gauravmsr20]

everything works like charM till now except refraction, the refraction that i am getting on GLASS either too less or its starting to bend things out of shape (bit extremely) at certain angles.

[@theimageneers5161]

Glass and water are the two materials that will always be tricky and will need a bit of result test from different angle , i cant wait to see your final result if you would like to share it , thanks

[@Gauravmsr20]

THE IMAGENEERS I would love to share it 😇

[@pandiantamilselvan1942]

suberb man helped me lot u r great name of the background song plss

[@theimageneers5161]

Thank you , here is the name of the music Music , Resolution - Wayne Jones

[@ronyczcomposer4149]

Nice :-)

[@theimageneers5161]

Thank you

[@shariffaik5792]

مساء الخيرات: I solved the problem by starting my project using blank gaming templet instead of architecture one. I think it is a problem concerning the architectural sector of the program

[@theimageneers5161]

That's great sharif , thanks for sharing your progress

[@learnshare382]

I can't receive reflection from 2nd planar reflection, any help pls

[@theimageneers5161]

Try first flip the planner , if still no reflection try reducing the water opacity and increase the reflection by increasing the metal value and reducing the roughness

[@cgs9667]

hello sir my caustics is not working... when i set channel direction light and pool... the look so bright.... caustics don,t show

[@theimageneers5161]

hi there , the caustic will show when u hit the directional light to a surface and set both to same the same channel 1 for example , the important thing is that the surface you wanna show the caustic on should have the same light channel of the directional light hitting the custics through the map please let us know if it still not clear to you

[@cgs9667]

@@theimageneers5161 i set both the same channel 1... After set the pool surface look so bright...

[@theimageneers5161]

@@cgs9667 ok can you try two things , one is to make sure the light is hitting that caustic alpha texture in the setting of the Directional light , 2nd increase the intensity of the light more and more and see if you start any caustics showing up

[@yousefmohamed9971]

what is the difference between lerp and multiply , please?

[@theimageneers5161]

hi there thanks for your Q , basically you can easly think of them like Multiply node : is too darken the material or brighten it by using a color channel to multiply it by the texture for example Lerp node : is for mixing two materials together by bringing part of both using an alpha value

[@killeriders]

definitely i've got a problem with my lightning, this is a bit too dark and water dont let light pass...

[@theimageneers5161]

hi , did you build you level light ( bake your light )

[@killeriders]

@@theimageneers5161 Yes, i have try different orientation and bake every time ^^

[@theimageneers5161]

@@killeriders ok please double check the material blend mode , to be Translucent , and lighting mode to surface Translucency volume

[@killeriders]

@@theimageneers5161 Yes is it, i maybe missed a part about directional light and sunsky, im going to continue anyway .

[@behzadkhojasteh]

perfect.

[@theimageneers5161]

Thank you

[@shariffaik5792]

السلام عليكم ، حضرتك من مصر ؟!

[@theimageneers5161]

وعليكم السلام ورحمة الله وبركاته ,, تمام يا فندم انا من مصر اهلا بيك في القناة 🙂

[@shariffaik5792]

جميل وربنا يوفقك ، كنت محتاج أستشير حضرتك في ال Packaging ، أنا مببتدئ 5 UE ، باشتغل ماكس ولوميون بغرض الإظهار المعماري ، وعندي مشكلة في packaging ، بيطلع المشروع فاضي ، وبيبعت رسائل غريبة ومش لاقي حل

[@theimageneers5161]

@@shariffaik5792 شكرا ليك وربنا يوفقك انت كمان مشطر اكتبلك بالانج عشان ماتتلخبطش في الكلام before you package your project make sure to setup the default map in your project setting to your level map , for example Arch viz 1 then change the same to be that the default map otherwise when you package and run it will show the default empty map

[@shariffaik5792]

@@theimageneers5161 شكراً ، وها ابلغ حضرتك بالنتيجة

[@ashrafdesign2975]

thank u very much

[@theimageneers5161]

You are most welcome

[@shariffaik5792]

السلام عليكم : still can't package my work , while the default scene of the program can be packaged well (the scene of the 2 orange chairs) the log file also gives me this weird message "LogFeaturePack: Error: Error in Feature pack C:/Program Files/Epic Games/UE_5.0/FeaturePacks/TP_VirtualRealityBP.upack. Failed to parse manifest: Invalid Json Token. Line: 43 Ch: 4" would you please make us a video about shipping and packaging to help every one facing the problem thanks alot

[@theimageneers5161]

وعليكم السلام ورحمة الله وبركاته can you please share a simple UE that give you the same problem and send it to us on [e-mail]

[@VitorCaldeira1980]

it doesnt work in unreal engine 5

[@theimageneers5161]

are referring of the reflection or the caustic light channel , thanks

[@VitorCaldeira1980]

@@theimageneers5161 when i connect the caustic image to the emissive shader i get an error Message

[@theimageneers5161]

@@VitorCaldeira1980 to increase the emmisive power for the caustic to be visible you only need a scalar parameter and a multiplier , this should be working in UE5 can you share a printscreen for the shader layout , thanks

[@VitorCaldeira1980]

@@theimageneers5161 i Will share the print as soon as i can. Thank you

[@VitorCaldeira1980]

@@theimageneers5161 Where can i share a printscreen? thank you

[@navidzandi9620]

Multiple planar reflections are not work for me can you help me plz?!

[@theimageneers5161]

can you please try to do the same but on an empty file just to check , if it didnt work please let us know