*b += m;
}
+void hsv2rgb_normalized(float h, float s, float v, float *r, float *g, float *b)
+{
+ float ref_r, ref_g, ref_b;
+ hsv2rgb(h, s, v, r, g, b);
+ hsv2rgb(h, 0.0f, v, &ref_r, &ref_g, &ref_b);
+ float lum = 0.2126 * *r + 0.7152 * *g + 0.0722 * *b;
+ float ref_lum = 0.2126 * ref_r + 0.7152 * ref_g + 0.0722 * ref_b;
+ if (lum > 1e-3) {
+ float fac = ref_lum / lum;
+ *r *= fac;
+ *g *= fac;
+ *b *= fac;
+ }
+}
+
std::string read_file(const std::string &filename)
{
static char buf[131072];
result[8] = a[2] * b[6] + a[5] * b[7] + a[8] * b[8];
}
+void multiply_3x3_matrix_float3(const Matrix3x3 M, float x0, float x1, float x2, float *y0, float *y1, float *y2)
+{
+ *y0 = M[0] * x0 + M[3] * x1 + M[6] * x2;
+ *y1 = M[1] * x0 + M[4] * x1 + M[7] * x2;
+ *y2 = M[2] * x0 + M[5] * x1 + M[8] * x2;
+}
+
void invert_3x3_matrix(const Matrix3x3 m, Matrix3x3 result)
{
double inv_det = 1.0 / (