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Clean up and fix some situations where triangulation may fail, closes #26366

This commit is contained in:
Juan Linietsky 2019-03-02 12:04:24 -03:00
parent 6dc2669361
commit 1b8f56c099
2 changed files with 11 additions and 8 deletions
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4
scene/2d/polygon_2d.cpp
View File

@ -307,7 +307,9 @@ void Polygon2D::_notification(int p_what) {
if (invert || polygons.size() == 0) {
Vector<int> indices = Geometry::triangulate_polygon(points);
VS::get_singleton()->canvas_item_add_triangle_array(get_canvas_item(), indices, points, colors, uvs, bones, weights, texture.is_valid() ? texture->get_rid() : RID());
if (indices.size()) {
VS::get_singleton()->canvas_item_add_triangle_array(get_canvas_item(), indices, points, colors, uvs, bones, weights, texture.is_valid() ? texture->get_rid() : RID());
}
} else {
//draw individual polygons
Vector<int> total_indices;

15
servers/visual/visual_server_canvas.cpp
View File

@ -758,11 +758,12 @@ void VisualServerCanvas::canvas_item_add_triangle_array(RID p_item, const Vector
Item *canvas_item = canvas_item_owner.getornull(p_item);
ERR_FAIL_COND(!canvas_item);
int ps = p_points.size();
ERR_FAIL_COND(!p_colors.empty() && p_colors.size() != ps && p_colors.size() != 1);
ERR_FAIL_COND(!p_uvs.empty() && p_uvs.size() != ps);
ERR_FAIL_COND(!p_bones.empty() && p_bones.size() != ps * 4);
ERR_FAIL_COND(!p_weights.empty() && p_weights.size() != ps * 4);
int vertex_count = p_points.size();
ERR_FAIL_COND(vertex_count==0);
ERR_FAIL_COND(!p_colors.empty() && p_colors.size() != vertex_count && p_colors.size() != 1);
ERR_FAIL_COND(!p_uvs.empty() && p_uvs.size() != vertex_count);
ERR_FAIL_COND(!p_bones.empty() && p_bones.size() != vertex_count * 4);
ERR_FAIL_COND(!p_weights.empty() && p_weights.size() != vertex_count * 4);
Vector<int> indices = p_indices;
@ -770,9 +771,9 @@ void VisualServerCanvas::canvas_item_add_triangle_array(RID p_item, const Vector
if (indices.empty()) {
ERR_FAIL_COND(ps % 3 != 0);
ERR_FAIL_COND(vertex_count % 3 != 0);
if (p_count == -1)
count = ps;
count = vertex_count;
} else {
ERR_FAIL_COND(indices.size() % 3 != 0);