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entity - entity handle
camera - camera handle |
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Returns true if the specified entity is visible to the specified camera.
If the entity is a mesh, its bounding box will be checked for visibility. For all other types of entities, only their centre position will be checked. |
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; EntityInView Example
; -------------------- Graphics3D 640,480 SetBuffer BackBuffer() camera=CreateCamera() PositionEntity camera,0,2,-10 light=CreateLight() RotateEntity light,90,0,0 plane=CreatePlane() ground_tex=LoadTexture("media/Chorme-2.bmp") EntityTexture plane,ground_tex cube=CreateCube() cube_tex=LoadTexture("media/b3dlogo.jpg") EntityTexture cube,cube_tex PositionEntity cube,0,1,0 While Not KeyDown( 1 ) If KeyDown( 205 )=True Then TurnEntity camera,0,-1,0 If KeyDown( 203 )=True Then TurnEntity camera,0,1,0 If KeyDown( 208 )=True Then MoveEntity camera,0,0,-0.05 If KeyDown( 200 )=True Then MoveEntity camera,0,0,0.05 ; Use camera project to get 2D coordinates from 3D coordinates of cube CameraProject(camera,EntityX(cube),EntityY(cube),EntityZ(cube)) RenderWorld ; If cube is in view then draw text, if not then draw nothing otherwise text will be drawn at 0,0 If EntityInView(cube,camera)=True ; Use ProjectedX() and ProjectedY() to get 2D coordinates from when CameraProject was used. ; Use these coordinates to draw text at a 2D position, on top of a 3D scene. Text ProjectedX#(),ProjectedY#(),"Cube" EndIf Text 0,0,"Use cursor keys to move about" Text 0,20,"ProjectedX: "+ProjectedX#() Text 0,40,"ProjectedY: "+ProjectedY#() Text 0,60,"ProjectedZ: "+ProjectedZ#() Text 0,80,"EntityInView: "+EntityInView(cube,camera) Flip Wend End |