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GPencil: Add weight factor to Offset randomize 

Now, The weight is used in the randomize parameters of the offset modifier. 

This is useful to generate effects like explosions.

Related to the new Vertex Weight modifiers.
This commit is contained in:
Antonio Vazquez 2021-07-03 17:33:13 +02:00
parent 9b89de2571
commit b73dc36859
Notes: blender-bot 2023-02-13 18:12:44 +01:00 
Referenced by issue #90786, Geometry nodes: editor do not refresh immediately if GN modifier clicked out of icon.
Referenced by issue #90423, Cycles - Render Pass contains black pixels with no values
Referenced by issue #89708, Geometry Node "Attribute Transfer" UV Mapping problem
1 changed files with 15 additions and 8 deletions
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23
source/blender/gpencil_modifiers/intern/MOD_gpenciloffset.c
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@ -129,14 +129,6 @@ static void deformStroke(GpencilModifierData *md,
}
}
}
/* Calculate Random matrix. */
float mat_rnd[4][4];
float rnd_loc[3], rnd_rot[3];
float rnd_scale[3] = {1.0f, 1.0f, 1.0f};
mul_v3_v3v3(rnd_loc, mmd->rnd_offset, rand[0]);
mul_v3_v3v3(rnd_rot, mmd->rnd_rot, rand[1]);
madd_v3_v3v3(rnd_scale, mmd->rnd_scale, rand[2]);
loc_eul_size_to_mat4(mat_rnd, rnd_loc, rnd_rot, rnd_scale);
bGPdata *gpd = ob->data;
@ -150,6 +142,21 @@ static void deformStroke(GpencilModifierData *md,
if (weight < 0.0f) {
continue;
}
/* Calculate Random matrix. */
float mat_rnd[4][4];
float rnd_loc[3], rnd_rot[3], rnd_scale_weight[3];
float rnd_scale[3] = {1.0f, 1.0f, 1.0f};
mul_v3_v3fl(rnd_loc, rand[0], weight);
mul_v3_v3fl(rnd_rot, rand[1], weight);
mul_v3_v3fl(rnd_scale_weight, rand[2], weight);
mul_v3_v3v3(rnd_loc, mmd->rnd_offset, rnd_loc);
mul_v3_v3v3(rnd_rot, mmd->rnd_rot, rnd_rot);
madd_v3_v3v3(rnd_scale, mmd->rnd_scale, rnd_scale_weight);
loc_eul_size_to_mat4(mat_rnd, rnd_loc, rnd_rot, rnd_scale);
/* Apply randomness matrix. */
mul_m4_v3(mat_rnd, &pt->x);