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Differential D2230 Diff 7435 intern/cycles/kernel/shaders/node_brick_texture.osl

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intern/cycles/kernel/shaders/node_brick_texture.osl

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{ {
int nn; int nn;
n = (n + 1013) & 2147483647; n = (n + 1013) & 2147483647;
n = (n >> 13) ^ n; n = (n >> 13) ^ n;
nn = (n * (n * n * 60493 + 19990303) + 1376312589) & 2147483647; nn = (n * (n * n * 60493 + 19990303) + 1376312589) & 2147483647;
return 0.5 * ((float)nn / 1073741824.0); return 0.5 * ((float)nn / 1073741824.0);
} }
float brick(point p, float mortar_size, float bias, float smoothstep(float x)
{
float x2 = x*x;
return 3*x2 - 2*x2*x;
}
brechtUnsubmitted
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The builtin OSL smoothstep(0.0, 1.0, x) does the same I think.

brecht: The builtin OSL `smoothstep(0.0, 1.0, x)` does the same I think.
float brick(point p, float mortar_size, float mortar_smooth, float bias,
float BrickWidth, float row_height, float offset_amount, int offset_frequency, float BrickWidth, float row_height, float offset_amount, int offset_frequency,
float squash_amount, int squash_frequency, float tint) float squash_amount, int squash_frequency, float tint)
{ {
int bricknum, rownum; int bricknum, rownum;
float offset = 0.0; float offset = 0.0;
float brick_width = BrickWidth; float brick_width = BrickWidth;
float x, y; float x, y;
rownum = (int)floor(p[1] / row_height); rownum = (int)floor(p[1] / row_height);
if (offset_frequency && squash_frequency) { if (offset_frequency && squash_frequency) {
brick_width *= (rownum % squash_frequency) ? 1.0 : squash_amount; /* squash */ brick_width *= (rownum % squash_frequency) ? 1.0 : squash_amount; /* squash */
offset = (rownum % offset_frequency) ? 0.0 : (brick_width * offset_amount); /* offset */ offset = (rownum % offset_frequency) ? 0.0 : (brick_width * offset_amount); /* offset */
} }
bricknum = (int)floor((p[0] + offset) / brick_width); bricknum = (int)floor((p[0] + offset) / brick_width);
x = (p[0] + offset) - brick_width * bricknum; x = (p[0] + offset) - brick_width * bricknum;
y = p[1] - row_height * rownum; y = p[1] - row_height * rownum;
tint = clamp((brick_noise((rownum << 16) + (bricknum & 65535)) + bias), 0.0, 1.0); tint = clamp((brick_noise((rownum << 16) + (bricknum & 65535)) + bias), 0.0, 1.0);
return (x < mortar_size || y < mortar_size || float min_dist = min(min(x, y), min(brick_width - x, row_height - y));
x > (brick_width - mortar_size) || if(min_dist >= mortar_size) {
y > (row_height - mortar_size)) ? 1.0 : 0.0; return 0.0;
}
else if(mortar_smooth == 0.0) {
return 1.0;
}
else {
min_dist = 1.0 - min_dist/mortar_size;
return (min_dist < mortar_smooth)? smoothstep(min_dist / mortar_smooth) : 1.0;
}
} }
shader node_brick_texture( shader node_brick_texture(
int use_mapping = 0, int use_mapping = 0,
matrix mapping = matrix(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0), matrix mapping = matrix(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
float offset = 0.5, float offset = 0.5,
int offset_frequency = 2, int offset_frequency = 2,
float squash = 1.0, float squash = 1.0,
int squash_frequency = 1, int squash_frequency = 1,
point Vector = P, point Vector = P,
color Color1 = 0.2, color Color1 = 0.2,
color Color2 = 0.8, color Color2 = 0.8,
color Mortar = 0.0, color Mortar = 0.0,
float Scale = 5.0, float Scale = 5.0,
float MortarSize = 0.02, float MortarSize = 0.02,
float MortarSmooth = 0.0,
float Bias = 0.0, float Bias = 0.0,
float BrickWidth = 0.5, float BrickWidth = 0.5,
float RowHeight = 0.25, float RowHeight = 0.25,
output float Fac = 0.0, output float Fac = 0.0,
output color Color = 0.2) output color Color = 0.2)
{ {
point p = Vector; point p = Vector;
if (use_mapping) if (use_mapping)
p = transform(mapping, p); p = transform(mapping, p);
float tint = 0.0; float tint = 0.0;
color Col = Color1; color Col = Color1;
Fac = brick(p * Scale, MortarSize, Bias, BrickWidth, RowHeight, Fac = brick(p * Scale, MortarSize, MortarSmooth, Bias, BrickWidth, RowHeight,
offset, offset_frequency, squash, squash_frequency, tint); offset, offset_frequency, squash, squash_frequency, tint);
if (Fac != 1.0) { if (Fac != 1.0) {
float facm = 1.0 - tint; float facm = 1.0 - tint;
Col = facm * Color1 + tint * Color2; Col = facm * Color1 + tint * Color2;
} }
Color = (Fac == 1.0) ? Mortar : Col; Color = mix(Col, Mortar, Fac);
} }