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- <html>
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- <title>Blitz3D Docs</title>
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- <h1>EntityInView ( entity,camera )</h1>
- <h1>Parameters</h1>
- <table>
- <tr>
- <td>
- entity - entity handle
<br />
- camera - camera handle
- </td>
- </tr>
- </table>
- <h1>Description</h1>
- <table>
- <tr>
- <td>
- Returns true if the specified entity is visible to the specified camera.
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-
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- If the entity is a mesh, its bounding box will be checked for visibility.
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-
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- For all other types of entities, only their centre position will be checked.
- </td>
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- </table>
- <h1><a href=../3d_examples/EntityInView.bb>Example</a></h1>
- <table>
- <tr>
- <td>
- ; EntityInView Example
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- ; --------------------
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-
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- Graphics3D 640,480
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- SetBuffer BackBuffer()
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-
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- camera=CreateCamera()
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- PositionEntity camera,0,2,-10
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-
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- light=CreateLight()
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- RotateEntity light,90,0,0
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-
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- plane=CreatePlane()
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- ground_tex=LoadTexture("media/Chorme-2.bmp")
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- EntityTexture plane,ground_tex
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-
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- cube=CreateCube()
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- cube_tex=LoadTexture("media/b3dlogo.jpg")
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- EntityTexture cube,cube_tex
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- PositionEntity cube,0,1,0
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-
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- While Not KeyDown( 1 )
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-
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- If KeyDown( 205 )=True Then TurnEntity camera,0,-1,0
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- If KeyDown( 203 )=True Then TurnEntity camera,0,1,0
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- If KeyDown( 208 )=True Then MoveEntity camera,0,0,-0.05
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- If KeyDown( 200 )=True Then MoveEntity camera,0,0,0.05
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-
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- ; Use camera project to get 2D coordinates from 3D coordinates of cube
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- CameraProject(camera,EntityX(cube),EntityY(cube),EntityZ(cube))
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-
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- RenderWorld
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-
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- ; If cube is in view then draw text, if not then draw nothing otherwise text will be drawn at 0,0
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- If EntityInView(cube,camera)=True
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-
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- ; Use ProjectedX() and ProjectedY() to get 2D coordinates from when CameraProject was used.
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- ; Use these coordinates to draw text at a 2D position, on top of a 3D scene.
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- Text ProjectedX#(),ProjectedY#(),"Cube"
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-
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- EndIf
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-
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- Text 0,0,"Use cursor keys to move about"
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- Text 0,20,"ProjectedX: "+ProjectedX#()
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- Text 0,40,"ProjectedY: "+ProjectedY#()
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- Text 0,60,"ProjectedZ: "+ProjectedZ#()
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- Text 0,80,"EntityInView: "+EntityInView(cube,camera)
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-
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- Flip
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-
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- Wend
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-
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- End
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- </tr>
- </table>
- <br>
- <a target=_top href=../index.htm>Index</a><br>
- <br>
- Click <a href=http://www.blitzbasic.co.nz/b3ddocs/command.php?name=EntityInView&ref=comments target=_blank>here</a> to view the latest version of this page online</body>
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