Page MenuHome
Differential D14553 Diff 50107 source/blender/gpencil_modifiers/intern/MOD_gpenciloffset.c

Changeset View

Standalone View

View Options

source/blender/gpencil_modifiers/intern/MOD_gpenciloffset.c

Show First 20 Lines • Show All 77 Lines • ▼ Show 20 Lines if (!is_stroke_affected_by_modifier(ob,
gps, gps,
mmd->flag & GP_OFFSET_INVERT_LAYER, mmd->flag & GP_OFFSET_INVERT_LAYER,
mmd->flag & GP_OFFSET_INVERT_PASS, mmd->flag & GP_OFFSET_INVERT_PASS,
mmd->flag & GP_OFFSET_INVERT_LAYERPASS, mmd->flag & GP_OFFSET_INVERT_LAYERPASS,
mmd->flag & GP_OFFSET_INVERT_MATERIAL)) { mmd->flag & GP_OFFSET_INVERT_MATERIAL)) {
return; return;
} }
const bool is_randomized = !(is_zero_v3(mmd->rnd_offset) && is_zero_v3(mmd->rnd_rot) &&
is_zero_v3(mmd->rnd_scale));
int seed = mmd->seed; int seed = mmd->seed;
/* Make sure different modifiers get different seeds. */ /* Make sure different modifiers get different seeds. */
seed += BLI_hash_string(ob->id.name + 2); seed += BLI_hash_string(ob->id.name + 2);
seed += BLI_hash_string(md->name); seed += BLI_hash_string(md->name);
float rand[3][3]; float rand[3][3];
float rand_offset = BLI_hash_int_01(seed); float rand_offset = BLI_hash_int_01(seed);
if (is_randomized) {
/* Get stroke index for random offset. */ /* Get stroke index for random offset. */
int rnd_index = BLI_findindex(&gpf->strokes, gps); int rnd_index = BLI_findindex(&gpf->strokes, gps);
for (int j = 0; j < 3; j++) { for (int j = 0; j < 3; j++) {
const uint primes[3] = {2, 3, 7}; const uint primes[3] = {2, 3, 7};
double offset[3] = {0.0f, 0.0f, 0.0f}; double offset[3] = {0.0f, 0.0f, 0.0f};
double r[3]; double r[3];
/* To ensure a nice distribution, we use halton sequence and offset using the seed. */ /* To ensure a nice distribution, we use halton sequence and offset using the seed. */
BLI_halton_3d(primes, offset, rnd_index, r); BLI_halton_3d(primes, offset, rnd_index, r);
if ((mmd->flag & GP_OFFSET_UNIFORM_RANDOM_SCALE) && j == 2) { if ((mmd->flag & GP_OFFSET_UNIFORM_RANDOM_SCALE) && j == 2) {
float rand_value; float rand_value;
rand_value = fmodf(r[0] * 2.0f - 1.0f + rand_offset, 1.0f); rand_value = fmodf(r[0] * 2.0f - 1.0f + rand_offset, 1.0f);
rand_value = fmodf(sin(rand_value * 12.9898f + j * 78.233f) * 43758.5453f, 1.0f); rand_value = fmodf(sin(rand_value * 12.9898f + j * 78.233f) * 43758.5453f, 1.0f);
copy_v3_fl(rand[j], rand_value); copy_v3_fl(rand[j], rand_value);
} }
else { else {
for (int i = 0; i < 3; i++) { for (int i = 0; i < 3; i++) {
rand[j][i] = fmodf(r[i] * 2.0f - 1.0f + rand_offset, 1.0f); rand[j][i] = fmodf(r[i] * 2.0f - 1.0f + rand_offset, 1.0f);
rand[j][i] = fmodf(sin(rand[j][i] * 12.9898f + j * 78.233f) * 43758.5453f, 1.0f); rand[j][i] = fmodf(sin(rand[j][i] * 12.9898f + j * 78.233f) * 43758.5453f, 1.0f);
} }
} }
} }
}
bGPdata *gpd = ob->data; bGPdata *gpd = ob->data;
for (int i = 0; i < gps->totpoints; i++) { for (int i = 0; i < gps->totpoints; i++) {
bGPDspoint *pt = &gps->points[i]; bGPDspoint *pt = &gps->points[i];
MDeformVert *dvert = gps->dvert != NULL ? &gps->dvert[i] : NULL; MDeformVert *dvert = gps->dvert != NULL ? &gps->dvert[i] : NULL;
/* Verify vertex group. */ /* Verify vertex group. */
const float weight = get_modifier_point_weight( const float weight = get_modifier_point_weight(
dvert, (mmd->flag & GP_OFFSET_INVERT_VGROUP) != 0, def_nr); dvert, (mmd->flag & GP_OFFSET_INVERT_VGROUP) != 0, def_nr);
if (weight < 0.0f) { if (weight < 0.0f) {
continue; continue;
} }
/* Calculate Random matrix. */ /* Calculate Random matrix. */
if (is_randomized) {
float mat_rnd[4][4]; float mat_rnd[4][4];
float rnd_loc[3], rnd_rot[3], rnd_scale_weight[3]; float rnd_loc[3], rnd_rot[3], rnd_scale_weight[3];
float rnd_scale[3] = {1.0f, 1.0f, 1.0f}; float rnd_scale[3] = {1.0f, 1.0f, 1.0f};
mul_v3_v3fl(rnd_loc, rand[0], weight); mul_v3_v3fl(rnd_loc, rand[0], weight);
mul_v3_v3fl(rnd_rot, rand[1], weight); mul_v3_v3fl(rnd_rot, rand[1], weight);
mul_v3_v3fl(rnd_scale_weight, rand[2], weight); mul_v3_v3fl(rnd_scale_weight, rand[2], weight);
mul_v3_v3v3(rnd_loc, mmd->rnd_offset, rnd_loc); mul_v3_v3v3(rnd_loc, mmd->rnd_offset, rnd_loc);
mul_v3_v3v3(rnd_rot, mmd->rnd_rot, rnd_rot); mul_v3_v3v3(rnd_rot, mmd->rnd_rot, rnd_rot);
madd_v3_v3v3(rnd_scale, mmd->rnd_scale, rnd_scale_weight); madd_v3_v3v3(rnd_scale, mmd->rnd_scale, rnd_scale_weight);
loc_eul_size_to_mat4(mat_rnd, rnd_loc, rnd_rot, rnd_scale); loc_eul_size_to_mat4(mat_rnd, rnd_loc, rnd_rot, rnd_scale);
/* Apply randomness matrix. */ /* Apply randomness matrix. */
mul_m4_v3(mat_rnd, &pt->x); mul_m4_v3(mat_rnd, &pt->x);
}
/* Calculate matrix. */ /* Calculate matrix. */
mul_v3_v3fl(loc, mmd->loc, weight); mul_v3_v3fl(loc, mmd->loc, weight);
mul_v3_v3fl(rot, mmd->rot, weight); mul_v3_v3fl(rot, mmd->rot, weight);
mul_v3_v3fl(scale, mmd->scale, weight); mul_v3_v3fl(scale, mmd->scale, weight);
add_v3_fl(scale, 1.0); add_v3_fl(scale, 1.0);
loc_eul_size_to_mat4(mat, loc, rot, scale); loc_eul_size_to_mat4(mat, loc, rot, scale);
▲ Show 20 Lines • Show All 93 Lines • Show Last 20 Lines