void draw_mesh_paint_weight_edges(RegionView3D *rv3d, DerivedMesh *dm, const bool use_depth,
void *edgemask_cb, void *user_data)
{
/* weight paint in solid mode, special case. focus on making the weights clear
* rather than the shading, this is also forced in wire view */
if (use_depth) {
ED_view3d_polygon_offset(rv3d, 1.0);
glDepthMask(0); /* disable write in zbuffer, selected edge wires show better */
}
else {
glDisable(GL_DEPTH_TEST);
}
glEnable(GL_BLEND);
glColor4ub(255, 255, 255, 96);
glEnable(GL_LINE_STIPPLE);
glLineStipple(1, 0xAAAA);
dm->drawMappedEdges(dm, (DMSetDrawOptions)edgemask_cb, user_data);
if (use_depth) {
ED_view3d_polygon_offset(rv3d, 0.0);
glDepthMask(1);
}
else {
glEnable(GL_DEPTH_TEST);
}
glDisable(GL_LINE_STIPPLE);
glDisable(GL_BLEND);
}
void draw_mesh_face_select(RegionView3D *rv3d, Mesh *me, DerivedMesh *dm)
{
drawMeshFaceSelect_userData data;
data.me = me;
data.edge_flags = get_tface_mesh_marked_edge_info(me);
glEnable(GL_DEPTH_TEST);
glDisable(GL_LIGHTING);
ED_view3d_polygon_offset(rv3d, 1.0);
/* Draw (Hidden) Edges */
setlinestyle(1);
UI_ThemeColor(TH_EDGE_FACESEL);
dm->drawMappedEdges(dm, draw_mesh_face_select__setHiddenOpts, &data);
setlinestyle(0);
/* Draw Selected Faces */
if (me->drawflag & ME_DRAWFACES) {
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
/* dull unselected faces so as not to get in the way of seeing color */
glColor4ub(96, 96, 96, 64);
dm->drawMappedFaces(dm, draw_mesh_face_select__drawFaceOptsInv, NULL, NULL, (void *)me, 0);
glDisable(GL_BLEND);
}
ED_view3d_polygon_offset(rv3d, 1.0);
/* Draw Stippled Outline for selected faces */
glColor3ub(255, 255, 255);
setlinestyle(1);
dm->drawMappedEdges(dm, draw_mesh_face_select__setSelectOpts, &data);
setlinestyle(0);
ED_view3d_polygon_offset(rv3d, 0.0); /* resets correctly now, even after calling accumulated offsets */
MEM_freeN(data.edge_flags);
}