Spray on a boat mover?

(No1_sonuk) #1

I want to add water spray and if possible, a wake, to a moving boat model.

It needs to be there only while the boat is moving.

Any ideas how I can do this?
Thanks.

(Mr_Tickles) #2

Well, just an idea, but have a look at the wilsflame1 shader (in sfx.shader). You may need to use the animMap function to break up the texture rather than just scrolling it. For the sides of the spray try using tcMod rotate (with the centre off-brush) with the tcMod scroll. Maybe a little very subtle bit of tcMod turb to again break up the monotonicity of the texture. I think tcMod transform would be good to extend or gradually stretch the spray further towards the rear.

As for moving the brush with the shader and texture on, I guess you probably know more about than I do at the moment.

And as for turning it on and off for when the boat starts and stops, have a look at Appendix A in the shader manual, I think that could be exactly what you are looking for :slight_smile:

Edit:

Also, I know this sounds a bit weird, but you could try putting these two lines in the shader, not sure if it would work, but I think it could give a nice effect.

surfaceparms sky
surfaceparms trans

Oh, and for the texture you may need to make it into a kind of alpha texture with it looking a bit like water spray :slight_smile:

Not sure if all these combinations would work together, I may test it in the next week, but not right now as I have an exam tomorrow.