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Fix: Graph Editor extrapolation line drawing issue

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Introduced with #110788
Because of the logic introduced there, the first key might not be drawn,
resulting in a wrong extrapolation line.

This fixes it by always adding the first point

Pull Request: https://projects.blender.org/blender/blender/pulls/112072
This commit is contained in:
Christoph Lendenfeld 2023-09-07 10:31:03 +02:00 committed by Christoph Lendenfeld
parent 8f21353b5d
commit 8134849b12
1 changed files with 3 additions and 6 deletions
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9
source/blender/editors/space_graph/graph_draw.cc
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@ -1070,12 +1070,9 @@ static void draw_fcurve_curve_keys(
const int2 bounding_indices = get_bounding_bezt_indices(fcu, v2d->cur.xmin, v2d->cur.xmax);
/* This happens if there is only 1 frame in the curve or the view is only showing the
* extrapolation zone of the curve. */
if (bounding_indices[0] == bounding_indices[1]) {
BezTriple *bezt = &fcu->bezt[bounding_indices[0]];
curve_vertices.append({bezt->vec[1][0], bezt->vec[1][1]});
}
/* Always add the first point so the extrapolation line doesn't jump. */
curve_vertices.append(
{fcu->bezt[bounding_indices[0]].vec[1][0], fcu->bezt[bounding_indices[0]].vec[1][1]});
const blender::float2 pixels_per_unit = calculate_pixels_per_unit(v2d);
const int window_width = BLI_rcti_size_x(&v2d->mask);