archive/blender-archive
Archived
1
1
Fork 0
Code Pull Requests Packages Activity

Drawing speedup:

Browse Source 
We really don't need to iterate all edges of the mesh every frame to
search for loose edges, this calculation can be cached when filling the
edge index buffer.
This commit is contained in:
Antonis Ryakiotakis
2015-06-16 20:55:37 +02:00
parent 5ca3f3d811
commit fbff0e68a4
3 changed files with 23 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
source/blender/blenkernel/intern/cdderivedmesh.c
View File

@@ -432,33 +432,8 @@ static void cdDM_drawEdges(DerivedMesh *dm, bool drawLooseEdges, bool drawAllEdg
static void cdDM_drawLooseEdges(DerivedMesh *dm)
{
CDDerivedMesh *cddm = (CDDerivedMesh *) dm;
MEdge *medge = cddm->medge;
int i;
int prevstart = 0;
int prevdraw = 1;
int draw = 1;
GPU_edge_setup(dm);
for (i = 0; i < dm->numEdgeData; i++, medge++) {
if (medge->flag & ME_LOOSEEDGE) {
draw = 1;
}
else {
draw = 0;
}
if (prevdraw != draw) {
if (prevdraw > 0 && (i - prevstart) > 0) {
GPU_buffer_draw_elements(dm->drawObject->edges, GL_LINES, prevstart * 2, (i - prevstart) * 2);
}
prevstart = i;
}
prevdraw = draw;
}
if (prevdraw > 0 && (i - prevstart) > 0) {
GPU_buffer_draw_elements(dm->drawObject->edges, GL_LINES, prevstart * 2, (i - prevstart) * 2);
}
GPU_buffer_draw_elements(dm->drawObject->edges, GL_LINES, dm->drawObject->loose_edge_offset * 2, dm->drawObject->tot_loose_edge * 2);
GPU_buffer_unbind();
}