Alex Stephan

hi here,



1. load $HFS/mozilla/documents/examples/nodes/dop/particlefluidsolver/PopFlow.otl

2. set flow_fluid/particle separation to 0.01 (reasonable resolution)

try to simulate: fluid explodes at frame 2



I tried a lot of things to make it work. I am out of ideas.

anybody been there?

regards
alex

and dir is usually the direction of perfect “specular” reflection, not the surface normal), which explains why you couldn't adjust its roughness.

thanks, that helps. however, I am not sure what direction of perfect “specular” reflection means" so I shouldnt use frontface(normalize(N), I) as an input?

Hi all
how do you get a roughness parameter properly working in the bsdf specular() function:

the followong code is not working as expected: (result is just diffuse shaded no spec high light at all), compiles fine.

float rough =.01;
vector nml,V;
V = -normalize(I);
nml = frontface(normalize(N), I);
F = (Cd * diff) * diffuse();
bsdf carp_bsdf = specular(nml,V,rough)*basecolor;
F += refl * (clampcolor / albedo(carp_bsdf)) * carp_bsdf;

the following is looking good, but I can`t adjust roughness

vector nml,V;
V = -normalize(I);
nml = frontface(normalize(N), I);
F = (Cd * diff) * diffuse();
bsdf carp_bsdf = specular(nml)*basecolor;
F += refl * (clampcolor / albedo(carp_bsdf)) * carp_bsdf;

I might just miss something obvious here.