From d2b38b16b1c416e160f5442cbcef64d1dd97f5f5 Mon Sep 17 00:00:00 2001 From: Lars-Dominik Braun Date: Thu, 28 May 2015 17:35:46 +0200 Subject: random: Remove symmetry bias --- main.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'main.c') diff --git a/main.c b/main.c index ec6205d..8bf0e6c 100644 --- a/main.c +++ b/main.c @@ -145,6 +145,7 @@ static void print_genome (flam3_genome * const genome) { typedef struct { const char *palette; unsigned int width, height, max_xforms, max_var; + signed int max_symmetry, min_symmetry; double post_likelihood, final_likelihood, symmetry_likelihood; } random_arguments; @@ -277,7 +278,9 @@ static void do_random (const random_arguments * const arguments) { /* Randomly add symmetry (but not if we've already added a final xform) */ if (rand_d01(&rc) < arguments->symmetry_likelihood && !add_final) { - flam3_add_symmetry(&genome, 0, &rc); + assert (arguments->max_symmetry >= arguments->min_symmetry); + unsigned int symrange = arguments->max_symmetry - arguments->min_symmetry + 1; + flam3_add_symmetry(&genome, rand_mod (&rc, symrange) + arguments->min_symmetry); } /* random resets genome, adjust before finding appropriate bbox */ @@ -635,6 +638,8 @@ int main (int argc, char **argv) { .post_likelihood = 0.4, .final_likelihood = 0.15, .symmetry_likelihood = 0.25, + .min_symmetry = -6, + .max_symmetry = 6, }; argp_parse (&argp, argc, argv, 0, NULL, &arguments); -- cgit v1.2.3