Hi Vijay and Dev Team,
I was trying OSL round edges and I get a error :
"<node 'OSL texture'>:98: error: Unsupported feature: trace()
<node 'OSL texture'>:99: error: unsupported signature for getmessage: only getmessage("baking", key, value) is supported, where key is a string literal.
Compilation failed"
Is that a possibility to have a support for this trace for the next release? or is that any plans? I know somebody told me in Facebook group you Guys was looking at?
Thanks to let us know. ( I Attach the OSL script on the e-mail)
- Code: Select all
void rng_seed(output int rng, int seed)
{
int chash = seed;
if (chash == 0) chash = 1;
rng = chash * 30391861;
}
float rng_uniform(output int rng)
{
float res = rng / float(2137483647) * 0.5 + 0.5;
rng *= 30391861;
return res;
}
void to_unit_disk(float x, float y, output float x_out, output float y_out)
{
float r, phi;
float a = 2.0 * x - 1.0;
float b = 2.0 * y - 1.0;
if(a > -b)
{ if(a > b)
{ r = a;
phi = M_PI_4 *(b/a);
}
else
{ r = b;
phi = M_PI_4 *(2.0 - a/b);
} }
else
{ if(a < b)
{ r = -a;
phi = M_PI_4 *(4.0 + b/a);
}
else
{ r = -b;
if(b != 0.0) phi = M_PI_4 *(6.0 - a/b);
else phi = 0.0;
} }
x_out = r * cos(phi);
y_out = r * sin(phi);
}
void make_orthonormals(vector N, output vector a, output vector b)
{
if(N[0] != N[1] || N[0] != N[2]) a = cross(vector(1, 1, 1), N);
else a = cross(vector(-1, 1, 1), N);
a = normalize(a);
b = cross(N, a);
}
vector sample_cos_hemisphere(vector N, float randu, float randv)
{
vector T, B;
make_orthonormals(N, T, B);
to_unit_disk(randu, randv, randu, randv);
float costheta = sqrt(max(1.0 - randu * randu - randv * randv, 0.0));
return randu * T + randv * B + costheta * N;
}
shader edge_smooth(
int Concave = 1,
int Convex = 1,
int Samples = 4,
int Backfacing = 1,
float Mask = 1,
float Distance = 0.1,
normal Normal = N,
output normal outNormal = 0
)
{
int i, rng;
float f, randu, randv, ray_t, hits = 0;
vector ray_P, ray_R;
normal hit_normal = N;
outNormal = Normal;
float hit_dist;
float normal_blend;
float s_weight = 1/Samples;
f = fmod(cellnoise(P*123456.0), 1.0);
rng_seed(rng, int(f * 21374647));
if (Mask > 0.5 && raytype("camera")) {
for(i = 0; i < Samples; i++) {
randu = rng_uniform(rng);
randv = rng_uniform(rng);
ray_P = P;
ray_R = sample_cos_hemisphere(-N, randu, randv);
ray_t = Distance;
if (Concave == 1)
{ if(trace(ray_P, -ray_R, "maxdist", ray_t)) {
getmessage ("trace", "N", hit_normal);
getmessage ("trace", "hitdist", hit_dist);
normal_blend = 1-(hit_dist/Distance);
outNormal = Normal + (hit_normal*normal_blend);
break;
}
}
if (Convex == 1) {
if(trace(ray_P, ray_R, "maxdist", ray_t)) {
getmessage ("trace", "N", hit_normal);
getmessage ("trace", "hitdist", hit_dist);
normal_blend = 1-(hit_dist/Distance);
if (Backfacing==1 || dot(I, -hit_normal) > 0.0) {
outNormal = Normal + (hit_normal*normal_blend);
}
break;
}
}
}
}
outNormal = normalize(outNormal);
}
Cheers,
JO
