Re: Boolean Logic was Landscapes/World machine

2005-11-11 Thread George Jenner
OK, here's a simple slope-sensitive rock/snow shader with a little frontend with comments (uncheck 'advanced'). The funny thing about this shader is that the snow extends at the bottom of the noise cracks, which avoids too much smoothness. Ask ahead about the VSL, only I'm not sure I have all

Re: Boolean Logic was Landscapes/World machine

2005-11-09 Thread Mark Heuymans
There was one significant error in the material. It appears that you need to have a unit vector to get correct results on the slope angle, so add the following: *Variable v_mapz *Normalize(Mapz, v_mapz) *f_angle=dot product(Surface Normal, v_mapz) Well, I made this material and it works

Re: Boolean Logic was Landscapes/World machine

2005-11-09 Thread Mark Heuymans
At 02:18 PM 11/9/2005 +, you wrote: Hi Guys, Sorry for no recent input to the Landscape / Shader thing. Involved in a car crash last sunday, my motor is a write off. Guy pulled out of a garage from my left onto a 60mph road and chanced crossing over in front of us to the otherside. Bang

Re: Boolean Logic was Landscapes/World machine

2005-11-08 Thread Karl
As I was saying once a polygons qualities can be deter- mined , using boolean logic , then any number of operations can then be applied , from texturing to particles to displacement map- ing ... , the mind boggles at what can be done to a polygon in RS ! Hi Don't start a project/material

Re: Boolean Logic was Landscapes/World machine

2005-11-08 Thread Karl
One problem is that this doesn't work with displacement. Decreasing bump height based on AA means losing the height information for the displacement. Yes, I agree with that. I wonder how it would look in an animation though :-) Thanks for the detailed tips, I got them stored safely!

Re: Boolean Logic was Landscapes/World machine

2005-11-08 Thread studio
The polygons are still pretty big even in a quarter-million-points mesh, you're asking for triangle artifacts this way... Example: a poly has a single slope value because it's flat. This needs camouflaging. The materials depending on slope should be 'smeared out' by adding some noise or

RE: Boolean Logic was Landscapes/World machine

2005-11-07 Thread Mark Heuymans
At 09:59 AM 11/7/2005 +0100, you wrote: As I was saying once a polygons qualities can be deter- mined , using boolean logic , then any number of operations can then be applied , from texturing to particles to displacement map- ing ... , the mind boggles at what can be done to a polygon in

Re: Boolean Logic was Landscapes/World machine

2005-11-07 Thread studio
As I was saying once a polygons qualities can be deter- mined , using boolean logic , then any number of operations can then be applied , from texturing to particles to displacement map- ing ... , the mind boggles at what can be done to a polygon in RS ! Hi Don't start a