Hi, For those who are implementing a realtime viewport mode using RhinoCommon (RealtimeDisplayMode) will notice for the next Rhino WIP release that their RealtimeDisplayModeClassInfo implementation breaks compiling. These changes were merged today (an hour ago from this writing), so any Rhino WIP …

Blocking seems fine if the OpenGL is drawing in the main thread, and the renderer must wait, but at least for us, with our long rendering times, the opposite would be awful, and would just kill the UI until the next frame is ready. I will try it out, but I suspect we must come up with a different st…

You are of course not obliged to use OpenGL to draw your render result. If using the RenderWindow works well for you, maybe it is the easier way to stick to without overly complicating your own code.

We were hoping to simplify our code a bit, and possibly getting some speed here. We also have some open issues in our descaling code, which using OGL would fix automatically, so there is that too. Doing a straight copy will be a lot more efficient than the descaling and alpha twiddling we are curre…

You call SignalRedraw() in your RealtimeDisplayMode implementation. This sets a flag in the underlying display pipeline which gets checked by a timer event. If set a redraw of the viewport is issued, which will eventually resolve into either putting the RenderWindow contents into the Rhino OpenGL fr…

(Do we need to set alpha to 1 for VP still?) It sounds like you would potentially have the same issue we do, i.e. what if the renderer is busy when the redraw call comes in. Do you have more than one buffer?

[image] CarstenW: (Do we need to set alpha to 1 for VP still?) Not sure about that - probably (</guess>) [image] CarstenW: It sounds like you would potentially have the same issue we do, i.e. what if the renderer is busy when the redraw call comes in. Do you have more than one buffer? …

Haha, you are welcome :slight_smile: I went back and re-read your initial post and the supplied code, and I am pretty sure how I will do it now. I should have done this earlier, sorry about all the banter.

By the way, 10 redraws a second is really very slow. Any chance of bumping this to 30, or maybe 60?

[image] CarstenW: sorry about all the banter. No problem. This is how the mind works. Discussion helps, in more ways than one can anticipate :smiley: [image] CarstenW: By the way, 10 redraws a second is really very slow. Any chance of bumping this to 30, or maybe 60? Depends on if we …

So, I have implemented this, as best I could, and it works, and it is fast… although there are some issues. One is that our HDR environment is no longer visible. I think this might be because of the alpha issue. In our own copy routine we would set the alpha to 1.0f, but here we are not doing that. …

RealtimeDisplayModeClassInfo breaking change

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RealtimeDisplayModeClassInfo breaking change

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