Blood Shader

[stoic mortar]

How can I create a blood shader that makes blood run down the body from a specific point? Any ideas or approaches would be appreciated. Thanks

[bright herald]

From a specific point or an arbitrary point? Have to be affected by rotation of the object at start, or even changes in rotation during the effect?
Fully dynamic blood is tricky, so you should define what the system has to and doesn't have to do to determine what kind of shortcuts and workarounds could be used

And if the bleeding only has to include a predetermined object, or potentially any

[stoic mortar]

From an arbitrary point, It would not be affected by rotation, and potentially any

Sorry for not specifying 🙁

[ruby quartz]

to simulate moving liquid flow maps can be used. some old shaders used this technique for water movement (left 4 dead for example)
May be able to produce one for this effect and by offsetting uv you could perhaps control where its shown on a model.

[stoic mortar]

Thanks! I will try to research this method 🙂

[ruby quartz]

https://developer.valvesoftware.com/wiki/Water_(shader)#Flowing_water

[stoic mortar]

Thank you 🙂

[ruby quartz]

That should have some useful links to explain stuff in more detail too