Better use the 2nd layer of texture of the model for this.
You coul have them precalculated on certain places, and then assign them up ;)
EG: you got your texture.bmp which is your color map for your model assigned to the texture layer "0" of the model.
Then as if it was a lightmap (but with different blend setting of course) you will have: bloodmap.png bloodmap1.png bloodmap2.png and so on, which will be a set of texture that will be assigned to the texture layer "1" so colouring of blood your models in different comboz.
Is simple to achieve, and all those bloodmaps would be reapplicable to all of your models.
(you could use different filename as well, eg: bloodface.png bloodtorso.png bloodfaceandtorso.png and so on)
Just an idea ;)
You coul have them precalculated on certain places, and then assign them up ;)
EG: you got your texture.bmp which is your color map for your model assigned to the texture layer "0" of the model.
Then as if it was a lightmap (but with different blend setting of course) you will have: bloodmap.png bloodmap1.png bloodmap2.png and so on, which will be a set of texture that will be assigned to the texture layer "1" so colouring of blood your models in different comboz.
Is simple to achieve, and all those bloodmaps would be reapplicable to all of your models.
(you could use different filename as well, eg: bloodface.png bloodtorso.png bloodfaceandtorso.png and so on)
Just an idea ;)