griefith/test
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

Graph Editor: Draw indicators on the active Driver F-Curve which show the

Browse Source 
relationship between the result of driver evaluation (NKEY region stuff) and the
end result applied to the driven properties.

Example:
http://www.pasteall.org/pic/47687
This commit is contained in:
Joshua Leung
2013-03-22 02:28:55 +00:00
parent 5ef9a20671
commit 48b50ec154
1 changed files with 111 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

112
source/blender/editors/space_graph/graph_draw.c
View File

@@ -712,7 +712,7 @@ static void draw_fcurve_curve_bezts(bAnimContext *ac, ID *id, FCurve *fcu, View2
v1[1] = prevbezt->vec[1][1];
v2[0] = prevbezt->vec[2][0];
v2[1] = prevbezt->vec[2][1];
v3[0] = bezt->vec[0][0];
v3[1] = bezt->vec[0][1];
v4[0] = bezt->vec[1][0];
@@ -772,6 +772,111 @@ static void draw_fcurve_curve_bezts(bAnimContext *ac, ID *id, FCurve *fcu, View2
glEnd();
}
/* Debugging -------------------------------- */
/* Draw indicators which show the value calculated from the driver,
* and how this is mapped to the value that comes out of it. This
* is handy for helping users better understand how to interpret
* the graphs, and also facilitates debugging.
*/
static void graph_draw_driver_debug(bAnimContext *ac, ID *id, FCurve *fcu)
{
ChannelDriver *driver = fcu->driver;
View2D *v2d = &ac->ar->v2d;
float unitfac = ANIM_unit_mapping_get_factor(ac->scene, id, fcu, false);
/* for now, only show when debugging driver... */
//if ((driver->flag & DRIVER_FLAG_SHOWDEBUG) == 0)
// return;
/* No curve to modify/visualise the result?
* => We still want to show the 1-1 default...
*/
if ((fcu->totvert == 0) && (fcu->modifiers.first == NULL)) {
float t;
/* draw with thin dotted lines in style of what curve would have been */
glColor3fv(fcu->color);
setlinestyle(20);
glLineWidth(2.0f);
/* draw 1-1 line, stretching just past the screen limits
* NOTE: we need to scale the y-values to be valid for the units
*/
glBegin(GL_LINES);
t = v2d->cur.xmin;
glVertex2f(t, t * unitfac);
t = v2d->cur.xmax;
glVertex2f(t, t * unitfac);
glEnd();
/* cleanup line drawing */
setlinestyle(0);
glLineWidth(1.0f);
}
/* draw driver only if actually functional */
if ((driver->flag & DRIVER_FLAG_INVALID) == 0) {
/* grab "coordinates" for driver outputs */
float x = driver->curval;
float y = fcu->curval * unitfac;
/* only draw indicators if the point is in range*/
if (IN_RANGE(x, v2d->cur.xmin, v2d->cur.xmax)) {
float co[2];
/* draw dotted lines leading towards this point from both axes ....... */
glColor3f(0.9f, 0.9f, 0.9f);
setlinestyle(5);
glBegin(GL_LINES);
/* x-axis lookup */
co[0] = x;
if (y >= v2d->cur.ymin) {
co[1] = v2d->cur.ymin;
glVertex2fv(co);
co[1] = y;
glVertex2fv(co);
}
/* y-axis lookup */
co[1] = y;
co[0] = v2d->cur.xmin;
glVertex2fv(co);
co[0] = x;
glVertex2fv(co);
glEnd();
setlinestyle(0);
/* x marks the spot .................................................... */
/* -> outer frame */
glColor3f(0.9f, 0.9f, 0.9f);
glPointSize(7.0);
glBegin(GL_POINTS);
glVertex2f(x, y);
glEnd();
/* inner frame */
glColor3f(0.9f, 0.0f, 0.0f);
glPointSize(3.0);
glBegin(GL_POINTS);
glVertex2f(x, y);
glEnd();
glPointSize(1.0f);
}
}
}
/* Public Curve-Drawing API ---------------- */
/* Draw the 'ghost' F-Curves (i.e. snapshots of the curve)
@@ -934,6 +1039,11 @@ void graph_draw_curves(bAnimContext *ac, SpaceIpo *sipo, ARegion *ar, View2DGrid
}
}
/* 3) draw driver debugging stuff */
if ((ac->datatype == ANIMCONT_DRIVERS) && (fcu->flag & FCURVE_ACTIVE)) {
graph_draw_driver_debug(ac, ale->id, fcu);
}
/* undo mapping of keyframes for drawing if scaled F-Curve */
if (adt)
ANIM_nla_mapping_apply_fcurve(adt, ale->key_data, 1, 0);