> On 2021 Oct 20, at 17:36, Nuno Santos <nuno.san...@imaginando.pt> wrote: > > Hi, > > I have a custom QSGGeometryNode that renders several elements using triangles. > > Each element is composed by 4 rectangles, this means that each element needs > 6x4=24 vertices. > > If there are more than a certain number of elements to be drawn, artefacts > pop up. This artefacts are characterised by lines that connect to the origin, > or with vertices on other elements. > > I have stumbled on this issue when rendering a scene with roughly 3800 > elements, which require 91200 vertices. I’m using colored point 2d vertices. > > > Are there limits to the number of vertices that can be allocated on a > QSGGeometry?
Yes: it uses 16-bit indices, and the last index is reserved to indicate primitive restart. So you can have up to 65534 vertices per node. _______________________________________________ Interest mailing list Interest@qt-project.org https://lists.qt-project.org/listinfo/interest
