From fb70f9bf997114a55cdfebe47fa42005c2112927 Mon Sep 17 00:00:00 2001 From: Joshua Leung Date: Thu, 8 Mar 2018 15:17:53 +1300 Subject: Fix crash if NLA strip with "Use Animated Influence" setting is enabled without the Influence Strip F-Curve existing --- source/blender/editors/space_nla/nla_draw.c | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-) (limited to 'source/blender/editors/space_nla/nla_draw.c') diff --git a/source/blender/editors/space_nla/nla_draw.c b/source/blender/editors/space_nla/nla_draw.c index 255fc0d6f8f..d33b84f76c0 100644 --- a/source/blender/editors/space_nla/nla_draw.c +++ b/source/blender/editors/space_nla/nla_draw.c @@ -285,16 +285,20 @@ static void nla_draw_strip_curves(NlaStrip *strip, float yminc, float ymaxc) float cfra; /* plot the curve (over the strip's main region) */ - glBegin(GL_LINE_STRIP); - /* sample at 1 frame intervals, and draw - * - min y-val is yminc, max is y-maxc, so clamp in those regions - */ - for (cfra = strip->start; cfra <= strip->end; cfra += 1.0f) { - float y = evaluate_fcurve(fcu, cfra); - CLAMP(y, 0.0f, 1.0f); - glVertex2f(cfra, ((y * yheight) + yminc)); + if (fcu) { + glBegin(GL_LINE_STRIP); + + /* sample at 1 frame intervals, and draw + * - min y-val is yminc, max is y-maxc, so clamp in those regions + */ + for (cfra = strip->start; cfra <= strip->end; cfra += 1.0f) { + float y = evaluate_fcurve(fcu, cfra); + CLAMP(y, 0.0f, 1.0f); + glVertex2f(cfra, ((y * yheight) + yminc)); + } + + glEnd(); // GL_LINE_STRIP } - glEnd(); // GL_LINE_STRIP } else { /* use blend in/out values only if both aren't zero */ -- cgit v1.2.3