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Cycles / OSL: Make the signed/unsigned Perlin parameter more self explaining.

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This commit is contained in:
Thomas Dinges
2014-10-03 17:47:37 +02:00
parent dc1ca0c94f
commit 3aa65574f5
2 changed files with 15 additions and 15 deletions
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24
intern/cycles/kernel/shaders/node_musgrave_texture.osl
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@@ -35,14 +35,14 @@ float noise_musgrave_fBm(point p, string basis, float H, float lacunarity, float
int i;
for (i = 0; i < (int)octaves; i++) {
value += safe_noise(p, 0) * pwr;
value += safe_noise(p, "signed") * pwr;
pwr *= pwHL;
p *= lacunarity;
}
rmd = octaves - floor(octaves);
if (rmd != 0.0)
value += rmd * safe_noise(p, 0) * pwr;
value += rmd * safe_noise(p, "signed") * pwr;
return value;
}
@@ -63,14 +63,14 @@ float noise_musgrave_multi_fractal(point p, string basis, float H, float lacunar
int i;
for (i = 0; i < (int)octaves; i++) {
value *= (pwr * safe_noise(p, 0) + 1.0);
value *= (pwr * safe_noise(p, "signed") + 1.0);
pwr *= pwHL;
p *= lacunarity;
}
rmd = octaves - floor(octaves);
if (rmd != 0.0)
value *= (rmd * pwr * safe_noise(p, 0) + 1.0); /* correct? */
value *= (rmd * pwr * safe_noise(p, "signed") + 1.0); /* correct? */
return value;
}
@@ -91,11 +91,11 @@ float noise_musgrave_hetero_terrain(point p, string basis, float H, float lacuna
int i;
/* first unscaled octave of function; later octaves are scaled */
value = offset + safe_noise(p, 0);
value = offset + safe_noise(p, "signed");
p *= lacunarity;
for (i = 1; i < (int)octaves; i++) {
increment = (safe_noise(p, 0) + offset) * pwr * value;
increment = (safe_noise(p, "signed") + offset) * pwr * value;
value += increment;
pwr *= pwHL;
p *= lacunarity;
@@ -103,7 +103,7 @@ float noise_musgrave_hetero_terrain(point p, string basis, float H, float lacuna
rmd = octaves - floor(octaves);
if (rmd != 0.0) {
increment = (safe_noise(p, 0) + offset) * pwr * value;
increment = (safe_noise(p, "signed") + offset) * pwr * value;
value += rmd * increment;
}
@@ -126,7 +126,7 @@ float noise_musgrave_hybrid_multi_fractal(point p, string basis, float H,
float pwr = pwHL;
int i;
result = safe_noise(p, 0) + offset;
result = safe_noise(p, "signed") + offset;
weight = gain * result;
p *= lacunarity;
@@ -134,7 +134,7 @@ float noise_musgrave_hybrid_multi_fractal(point p, string basis, float H,
if (weight > 1.0)
weight = 1.0;
signal = (safe_noise(p, 0) + offset) * pwr;
signal = (safe_noise(p, "signed") + offset) * pwr;
pwr *= pwHL;
result += weight * signal;
weight *= gain * signal;
@@ -143,7 +143,7 @@ float noise_musgrave_hybrid_multi_fractal(point p, string basis, float H,
rmd = octaves - floor(octaves);
if (rmd != 0.0)
result += rmd * ((safe_noise(p, 0) + offset) * pwr);
result += rmd * ((safe_noise(p, "signed") + offset) * pwr);
return result;
}
@@ -164,7 +164,7 @@ float noise_musgrave_ridged_multi_fractal(point p, string basis, float H,
float pwr = pwHL;
int i;
signal = offset - fabs(safe_noise(p, 0));
signal = offset - fabs(safe_noise(p, "signed"));
signal *= signal;
result = signal;
weight = 1.0;
@@ -172,7 +172,7 @@ float noise_musgrave_ridged_multi_fractal(point p, string basis, float H,
for (i = 1; i < (int)octaves; i++) {
p *= lacunarity;
weight = clamp(signal * gain, 0.0, 1.0);
signal = offset - fabs(safe_noise(p, 0));
signal = offset - fabs(safe_noise(p, "signed"));
signal *= signal;
signal *= weight;
result += signal * pwr;

6
intern/cycles/kernel/shaders/node_texture.h
View File

@@ -153,12 +153,12 @@ float voronoi_CrS(point p) { return 2.0 * voronoi_Cr(p) - 1.0; }
/* Noise Bases */
float safe_noise(point p, int type)
float safe_noise(point p, string type)
{
float f = 0.0;
/* Perlin noise in range -1..1 */
if (type == 0)
if (type == "signed")
f = noise("perlin", p);
/* Perlin noise in range 0..1 */
@@ -175,7 +175,7 @@ float safe_noise(point p, int type)
float noise_basis(point p, string basis)
{
if (basis == "Perlin")
return safe_noise(p, 1);
return safe_noise(p, "unsigned");
if (basis == "Voronoi F1")
return voronoi_F1S(p);
if (basis == "Voronoi F2")