Disappearing wall

[ocean]

Hi there!

 

I've just started building in Leadwerks again after a long break. I'm having an issue where portions of a wall keep disappearing and the skybox behind it is rendered instead. Wondering what I might have done wrong or if it's a bug... It's just the one wall and it doesn't matter if I replace it. I figure it's best to try and fix these things early on.

 

Keep in mind, I'm a Beginner with a captial 'B'.

 

Thanks.

 

Video link: http://youtu.be/y1rEu0D0sks

[ocean]

Thank you. Doesn't seem like I'm permitted to attach any files... :/

 

All hail, indeed.

[nick.ace]

I think that is actually expected behavior, at least for your framerate. Is that your actual framerate or are you slowing it down?

 

Anyway, Leadwerks does not render meshes that aren't in view (I guess all 3D engines do this as well?), so when you turn the view quickly like that, specifically coupled with a low framerate, these issues become more obvious. There is some delay, like maybe a frame, so that's why they aren't showing up.

[xtom]

I've experienced this too. For example if I sometimes do a quick turn in a building I can for a second see out through the wall and It doesn't look the best when it happens. As nick says I think a slower frame rate makes it more obvious.

[ocean]

No. This isn't my actual framerate, it's the screen recording software interfering I suppose.

I don't have to turn too quickly to have it happen, and it's just that one wall (brush) that's affected.

 

I still can't upload files... I'll hear with Josh if he can work some magic on my permissions.

 

Thanks, guys.

[ocean]

Here's the map in question. Thanks for checking it out.

testmap1.map.zip

[Josh]

Leadwerks uses hardware occlusion culling which basically gives us hidden object removal in real-time that works everywhere. There is a small delay before the feedback from a visibility test comes back to the GPU, and this can result in objects popping into view at low framerates.

[ocean]

In debug mode the framerate jumps between the 90s and 100s.

[Josh]

That should be fast enough that the effect isn't very noticeable. Your video above is running at about 5 FPS.

[ocean]

Yep... I'm not having much luck screen-recording properly.

[Josh]

I recommend PlayClaw or FRAPS. They both record really fast.