Greetings. I am making a horror-survival game in a similiar style as resident evil. Unfortunately, I have come to a huge barrier: I have no idea how to do realistic or even irrealistic blood. I need a system that will not cause my program to drop from 64 fps further than 50 fps. Please help!

For clarity, these are the methods I have already tried and have decided against:
Particles-too much slowdown
Plains-transparency system is annoying
red spheres-two much slowdown
re-texturing-not accurate enough

You could use some red coloured particles. Its not the fastest but it will look realistic.

If you want it faster use a sprite or paste an image onto a plain.

i personally would create say 6 or 7 plains, texture them with blood & when they collide with the walls/floors etc they get destroyed and make a decell (spelling?) making the apperance of blood splattering everywhere

Its called 'decal' and I would go will plains all the way, more control.

I would use plains, if I knew how to cancel out the black sections. As is, I am considering using an FPS Creator style blood system, with a set of textures scrolling across a plain. If anybody knows how to do that with a single image, please share your knowledge.

thank you sasuke,gatorhex, and djchaos. I used your methods and it works great! this thread is no longer needed. Mods, please lock it.