Differential D4036 Diff 12788 source/blender/editors/gpencil/gpencil_brush.c

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source/blender/editors/gpencil/gpencil_brush.c

Show First 20 Lines • Show All 132 Lines • ▼ Show 20 Lines	typedef struct tGP_BrushEditData {
/* Current frame */		/* Current frame */
int cfra;		int cfra;


/* Brush Runtime Data: */		/* Brush Runtime Data: */
/* - position and pressure		/* - position and pressure
* - the *_prev variants are the previous values		* - the *_prev variants are the previous values
*/		*/
int mval[2], mval_prev[2];		float mval[2], mval_prev[2];
float pressure, pressure_prev;		float pressure, pressure_prev;

/* - effect vector (e.g. 2D/3D translation for grab brush) */		/* - effect vector (e.g. 2D/3D translation for grab brush) */
float dvec[3];		float dvec[3];

/* - multiframe falloff factor */		/* - multiframe falloff factor */
float mf_falloff;		float mf_falloff;

▲ Show 20 Lines • Show All 106 Lines • ▼ Show 20 Lines	static float gp_brush_influence_calc(tGP_BrushEditData *gso, const int radius, const int co[2])

/* use pressure? */		/* use pressure? */
if (gp_brush->flag & GP_SCULPT_FLAG_USE_PRESSURE) {		if (gp_brush->flag & GP_SCULPT_FLAG_USE_PRESSURE) {
influence *= gso->pressure;		influence *= gso->pressure;
}		}

/* distance fading */		/* distance fading */
if (gp_brush->flag & GP_SCULPT_FLAG_USE_FALLOFF) {		if (gp_brush->flag & GP_SCULPT_FLAG_USE_FALLOFF) {
float distance = (float)len_v2v2_int(gso->mval, co);		int mval_i[2];
		round_v2i_v2fl(mval_i, gso->mval);
		float distance = (float)len_v2v2_int(mval_i, co);
float fac;		float fac;

CLAMP(distance, 0.0f, (float)radius);		CLAMP(distance, 0.0f, (float)radius);
fac = 1.0f - (distance / (float)radius);		fac = 1.0f - (distance / (float)radius);

influence *= fac;		influence *= fac;
}		}

▲ Show 20 Lines • Show All 316 Lines • ▼ Show 20 Lines	if (gso->sa->spacetype == SPACE_VIEW3D) {
/* Convert mouse position to 3D space		/* Convert mouse position to 3D space
* See: gpencil_paint.c :: gp_stroke_convertcoords()		* See: gpencil_paint.c :: gp_stroke_convertcoords()
*/		*/
RegionView3D *rv3d = gso->ar->regiondata;		RegionView3D *rv3d = gso->ar->regiondata;
const float *rvec = gso->scene->cursor.location;		const float *rvec = gso->scene->cursor.location;
float zfac = ED_view3d_calc_zfac(rv3d, rvec, NULL);		float zfac = ED_view3d_calc_zfac(rv3d, rvec, NULL);

float mval_f[2];		float mval_f[2];
copy_v2fl_v2i(mval_f, gso->mval);		copy_v2_v2(mval_f, gso->mval);
float mval_prj[2];		float mval_prj[2];
float dvec[3];		float dvec[3];


if (ED_view3d_project_float_global(gso->ar, rvec, mval_prj, V3D_PROJ_TEST_NOP) == V3D_PROJ_RET_OK) {		if (ED_view3d_project_float_global(gso->ar, rvec, mval_prj, V3D_PROJ_TEST_NOP) == V3D_PROJ_RET_OK) {
sub_v2_v2v2(mval_f, mval_prj, mval_f);		sub_v2_v2v2(mval_f, mval_prj, mval_f);
ED_view3d_win_to_delta(gso->ar, mval_f, dvec, zfac);		ED_view3d_win_to_delta(gso->ar, mval_f, dvec, zfac);
sub_v3_v3v3(gso->dvec, rvec, dvec);		sub_v3_v3v3(gso->dvec, rvec, dvec);
▲ Show 20 Lines • Show All 824 Lines • ▼ Show 20 Lines	static bool gpsculpt_brush_do_stroke(
if (gps->totpoints == 1) {		if (gps->totpoints == 1) {
bGPDspoint pt_temp;		bGPDspoint pt_temp;
gp_point_to_parent_space(gps->points, diff_mat, &pt_temp);		gp_point_to_parent_space(gps->points, diff_mat, &pt_temp);
gp_point_to_xy(gsc, gps, &pt_temp, &pc1[0], &pc1[1]);		gp_point_to_xy(gsc, gps, &pt_temp, &pc1[0], &pc1[1]);

/* do boundbox check first */		/* do boundbox check first */
if ((!ELEM(V2D_IS_CLIPPED, pc1[0], pc1[1])) && BLI_rcti_isect_pt(rect, pc1[0], pc1[1])) {		if ((!ELEM(V2D_IS_CLIPPED, pc1[0], pc1[1])) && BLI_rcti_isect_pt(rect, pc1[0], pc1[1])) {
/* only check if point is inside */		/* only check if point is inside */
if (len_v2v2_int(gso->mval, pc1) <= radius) {		int mval_i[2];
		round_v2i_v2fl(mval_i, gso->mval);
		if (len_v2v2_int(mval_i, pc1) <= radius) {
/* apply operation to this point */		/* apply operation to this point */
changed = apply(gso, gps, 0, radius, pc1);		changed = apply(gso, gps, 0, radius, pc1);
}		}
}		}
}		}
else {		else {
/* Loop over the points in the stroke, checking for intersections		/* Loop over the points in the stroke, checking for intersections
* - an intersection means that we touched the stroke		* - an intersection means that we touched the stroke
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