How to create a realistic blood in 3dsmax?

[cdinic]

one of the warcraft trailers has a shot in which blood is seeping into a small puddle. This effect was very effective, and produced in 3d studi MAX. I think it was done with 2 textures, slowly expanding... very simple

my questino is how will is be seen? soating like out of a gunshot wound? running down an arm? sitting in a pool on bath room tile?


be as specific as possible

-Chris

[phi2k]

it should become a scene and in it there is a bloody cutted arm, and the blood should running down the arm

[Fozzie]

Metaparticles are certainly an option but they are very computationally intensive and might drive your system to a crawl or could drive you insane trying to get the result that you want.

I remeber reading an article on the opening animation that Blur did for RTcW. There is a sequence in that animation where the villian slices off the head of some nameless soldier and blood comes gushing out. Well what Blur actually did here was go out to the parking lot with a big bottle of water (probably a 2L) and film the result of them squeezing the bottle and forcing the water to blow out. They then cleaned up their water video and used it in the animation.

So what I am trying to say here is that maybe you could try to tackling your problem another way using some old tricks :)

Foz

[cgSquad]

Use texure to show blood and to make it acceptable organic thing. Make blood realistic looking. Then use a little meta particles for droping blood.

TexureBlood and ParticleBlood should look same thing.

[cgSquad]

Use texure to show blood and to make it acceptable organic thing. Make blood realistic looking. Then use a little meta particles for droping blood.

This was just an idea

[eyeronik]

Metaparticles are certainly an option but they are very computationally intensive and might drive your system to a crawl or could drive you insane trying to get the result that you want.

I remeber reading an article on the opening animation that Blur did for RTcW. There is a sequence in that animation where the villian slices off the head of some nameless soldier and blood comes gushing out. Well what Blur actually did here was go out to the parking lot with a big bottle of water (probably a 2L) and film the result of them squeezing the bottle and forcing the water to blow out. They then cleaned up their water video and used it in the animation.

So what I am trying to say here is that maybe you could try to tackling your problem another way using some old tricks :)

Foz

Hmm I read this too about rtcw (yes I know this topic is prolly ancient) However as I recall they used the water for the rain at the start not for anything with the blood.

A 3 years later answer...

[michaeljr]

well a 3 year later response would be how realistic to do you want it to be? and how much time to you want to spend doing it?

if you don't have the tools built in to do super realistic liquids, then you need to get a plugin to do liquids.

it's the old, which way is the best way?

sometimes CG isn't the end all be all answer to the problem. I remember reading a article on The Incredibles. Pixar has some of the best minds in CG working there, but they also know where to put their time and money to. I was FLOORED when I read that when Jack Jack was in the sink, taking a bath and splashing sink water, that the water was NOT 3d, but HD video footage of someone splashing real water. WOW I thought, why not just do it all digitaly. well maybe it would have taken a few TDs a week to do it costing 10,000$ but you could go out and splash water and in an hour, be all done.

ILM is another example of this. most of the explosion you see in a Star Wars movie are real explosion. sure they could probably do a CG explosion, but in the end, it only matters what you get on the final film, not how you go there.

so if you run out of options trying to get your results in 3d, try a old school approach.

I would get a cardboard tube, paint it black, then get some white paint, poor that down the arm, video tape that, take that into your compositing program (if you don't have one there are plenty of simple free ones, but all good animators should use compositing software) and then pull out the white blood, color it and then use that as a texture map. depending on the motion of the arm you could move the cardboard tube in real time and then match your animation to that, or use particles to bring to life your texture maps.

if it's just a simple shot like that in Star Wars where the arm is on the ground bleeding, crap, you could probably shoot that with some black and white acrylic paint in about an hour, all done and it will probably look more realistic than anything you can get with built in MAX particles.

[Autarkis]

i
ILM is another example of this. most of the explosion you see in a Star Wars movie are real explosion. sure they could probably do a CG explosion, but in the end, it only matters what you get on the final film, not how you go there.


Actually ILM's fire and explosions for episode 3 are all 3d, according to what I've heard (from people who are working there/have worked there on episode 3)

[michaeljr]

that will be interesting to see if true. compare them to the previous real element explosions. I know Pixar did digital explosion in Incredibles, but it was stylize, not photo real. If anyone can do it well it would be ILM, they have the money and the brains to pull it off.

I think digital dust, fire, explosions, and liquids will be the next big thing we will see get better and easier to do right in software without a lot of extra plugins and money spent.

[CHRiTTeR]

For the blood: Glu3D (has a free trial version available on their site ;) )

Explosions: Afterburn

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