strange behavior when i put two RectangleVisual3D nearly
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qjt wrote at 2014-03-05 03:14:
Hi,when i am using your toolkit.A strange thing occurred. i put two RectangleVisual3D of different color (one of them is RED ,the other is BLUE) closely, one RectangleVisual3d looked like dissolve into another RectangleVisual3d just like the picture below:
<t:RectangleVisual3D Length="100" Width="100" Origin="0,0,1" Fill="#FFF50404" > </t:RectangleVisual3D> <t:RectangleVisual3D Length="100" Width="100" Origin="0,0,1.0001" Fill="#FF0611FB"> </t:RectangleVisual3D>
qjt wrote at 2014-03-05 03:17:
Lolipedobear wrote at 2014-03-05 11:53:
Did you set NearPlaneDistance in Camera? Had the same problem when NearPlaneDistance was 0.
qjt wrote at 2014-03-06 03:40:
Thank you for your help,but it can't solve the problem.The code:
this.Position = camera.Position; this.LookDirection = camera.LookDirection; this.UpDirection = camera.UpDirection; //this.NearPlaneDistance = camera.NearPlaneDistance; this.NearPlaneDistance = 0; this.FarPlaneDistance = camera.FarPlaneDistance;
Lolipedobear wrote at 2014-03-06 06:05:
Set value different from 0. Chosen value is depends on situation - if scene is large value can be 10 or more, if it is a small scene then value can be 0.1. I set 15 to NearPlaneDistance and it resolved problem on 1500x1500 units scene. Parts of the scene closer to camera than value in NearPlaneDistance property won't be displayed. As far as i know this problem is connected with floating point rounding when renderer is trying to determine which object is closer to camera.
<PerspectiveCamera Position="0, 600, 525" LookDirection="0, -600, -525" UpDirection="0,1,0" NearPlaneDistance="15"/>
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