Pro Tips for Fluid Simulations in Blender | Pro Quality Simulations, Rendering & Process

[@Matt-e8e]

the is the best fluid sim tutorial on the net!

[@djtutorialscgi]

Thank you :)

[@malinegor]

Very informative tut! Thank you so much!

[@djtutorialscgi]

I’m so glad you liked it!!!

[@bUildYT]

thats the type of video im wondering why the algorithm didnt show this earlier to me -.- excellent, it would have saved me so much try n error time...

[@djtutorialscgi]

This is why I stopped doing videos for a while. YT algorithm tanked my views…

[@Rayyarhs]

I tought it was a fluid sim turt but you showed much more. Thnx.

[@djtutorialscgi]

Of course! Make sure to check out the fireball series as well!

[@FluxStage]

Tip one is great! Working on that every day!

[@djtutorialscgi]

There’s a reason it’s number one :)

[@Bakalavr17]

Cool! I hope this tips will help new blender users to figure out more efficient ways of making splashes. Thank you for sharing!

[@keyframed6558]

Thank you so much, this video came out just in time, I've uploaded a few fluid simulations and was struggling with scaling and speed, this has cleared up a lot of stuff. Planning on uploading another wave generation video.

[@djtutorialscgi]

I'm glad it helped you. The next video I am producing compares 5 render engines in rendering a fluid simulation so hopefully I get some interesting results from that. Good luck on your fluid sims- Blender has come leaps and bounds in the last couple years and I am interested in seeing what other people are doing.

[@keyframed6558]

@@djtutorialscgi Nice! Always enjoy comparison videos especially to do with physics systems, can't wait.

[@mjmuftah271]

Thank you so much ❤️ for this video ❤️🙌❤️

[@djtutorialscgi]

You’re so very welcome!!!

[@activemotionpictures]

Marvelous video, sir! great advice!

[@djtutorialscgi]

Thank you!

[@activemotionpictures]

@rialscgistill visiting this top ACE video. :)

[@robertalexanderquinn9044]

chhhheeeeeeeeezuusssss.... i just lost a 5h sim cause I wanted to try the replay type IDIOOTTTTTT I am.... thanks for this

[@DannyLucid76]

Very helpful, thanks !

[@djtutorialscgi]

You’re welcome!

[@TorIvanBoine]

thanks. really helpful!

[@ITGeneral]

I added the displacement modifier with a texture on my emission sphere, but somehow it doesn't affect the mesh at all... the sphere itself is also displayed as a wireframe in object mode but display settings are normal, what did I do wrong?

[@djtutorialscgi]

Hmm…. Very strange. Try going on the discord and posting your file there

[@daemonjofficial]

Can you please do a quick ship simulation that uses something like Flip Fluids? I have been trying to figure out how to make my large scale simulations look realistic. White water and spray. I’ve tried in Houdini, but I’m not that smart. lol.

[@djtutorialscgi]

Doing large professional level sims simply take a long time. For it to be realistic, you will need to reference other project files from FF for some settings but really it’s a lot of time running the sims then re-running them. If you want more instant results, I know Embergen is in BETA right now with some sim software.

[@llYuki0okami]

Dear Blender Fluid Guru, I have problem when filling a container and then moving it, fluid just dissapears. It is same as in 'How do I stop the liquid from disappearing when cup-shaped collision object is moving' topic on blenderartists site. Also very often my Blender just crash without error message while cache mesh. I am not shure if this releted to disc space as I do not see any hight space change while baking.

[@djtutorialscgi]

A couple things: 1- join the discord as it is easier and faster to communicate. 2: is the fluid sim area large enough to allow the object movement. 3: is the container set up as an animating fluid collision. Regarding the crash- it depends on a few factors. Open a monitoring software that will show your RAM, CPU and GPU workloads and make sure nothing is capping out. It’s possible you’re reaching the max RAM.

[@llYuki0okami]

@@djtutorialscgi 'animating fluid collision'? I do not see such option.

[@stevecady4845]

Do you have any tips for fixing the liquid from rendering jittery after you add the mesh to it? I'm doing a slow motion of the liquid and the mesh looks all wobbly as it's slown down. help!

[@djtutorialscgi]

Slow the simulation speed way down like half or quarter speed. Adding resolution can help and also when you render, add some motion blur.

[@djtutorialscgi]

You can also work on the sheeting effect by adjusting some settings. Remember that the manta flow system was originally designed for large scale water sims so doing small scale slow motion is tricky. I recommend d taking a look at the Flip Fluids addon. I have it for bigger client projects and it is much easier to create slow motion small scale sims using it. Only problem is that it costs like $75 but considering how good it is, it’s worth the cost

[@BlueBerryFTW]

the displacment modifier on my inflow object doesnt seem to affect the shape of my inflow liquid much. Is there something I can do about this? The shape of my inflow mesh is definitely effected. However, the liquid is hardly affected. I changed the strength of the displace modifier to 10. Still hardly a change.

[@djtutorialscgi]

Did you make sure the select the settings so that the animation for your inflow is exported correctly before running the sim?

[@BlueBerryFTW]

@@djtutorialscgi i must have not because i did not know i had to. How can i make sure of that?

[@stevegeorge7773]

I hope its cool but I sent you a PM. It looks really great. Very cool! Do you think a 10th gen i7 with 32mb 4TB SSD is enough to run this in rendering? I do have a NAS but I don't know if the speed of the cable connection would allow for all the content to run via this external.

[@djtutorialscgi]

Hey- yes you should be able to render and do the full baking process. Make sure that when you render to use the global illumination approximation setting and use around 256 samples and the OIDN denoiser.

[@DannyLucid76]

Hey, a TUT on wet maps would be great!

[@djtutorialscgi]

Hmmm…. That would be a pretty specific thing…. Basically for this one I just made a procedural map and animated it so it appeared to be running down the object then piped that into the normal and the glossy/roughness inputs.

[@DannyLucid76]

@@djtutorialscgi Thanks for the reply. Im trying to work out how to make a liquid domain leave a wet map on two different surfaces, one after the other.

[@djtutorialscgi]

@@DannyLucid76 you will need to use dynamic paint.

[@DannyLucid76]

@@djtutorialscgi Thanks!

[@sajiaislam8096]

Very wonderful videos . I have have particle data . May I create render from particle data

[@djtutorialscgi]

Not sure what you’re asking. I do have a project file on my Gumroad

[@alperg1142]

Thanks.

[@axis3d]

Great tips, thank you. I've added an animated displacement on the Inflow object like you've shown. It happens before the Fluid modifier, but it is not affecting the result. I'm still getting that ripple/ribbing effect on the pour. It seems to use the displaced shape, but not the animation of it. Just the first frame of the shape is displaced. Any ideas why this might be happening? Using Blender 3.0. Thanks.

[@djtutorialscgi]

Hey there- are you on the Discord? If not jump on there so it’s easier to communicate and stuff. I’ll probably be able to get to it next week

[@koendos3]

how to you get nice surface tension? I dont know what settings work well.

[@djtutorialscgi]

It’s an animated normal map where I added a fluid material.

[@sacha9578]

how did you make the texture? helpp

[@djtutorialscgi]

Which texture?

[@sacha9578]

@@djtutorialscgi of the sphere so that it would be of different forms

[@djtutorialscgi]

​@@sacha9578 the wet map?

[@sacha9578]

@@djtutorialscgi on 18:22

[@djtutorialscgi]

@@sacha9578 Oh I think you mean the fluid inflow objects- they are made with a displacement map and a procedural texture then I parented the location of the texture to an empty and animated the empty. Jump on the discord and post your question there and I can try and help.