When I move the camera towards an object and back again it leaves a trail, of the image, any ideas why this is happening please?
source below
set display mode 800,600,16
sync on
backdrop off
cls rgb(0,0,100)
` load images and textures
load image "wall6.bmp",1
make object cylinder 1,100
scale object 1,200,25,100
texture object 1,1
show object 1
` set up camera
position camera 0,60,-300
set ambient light 100
point camera 0,0,0
do
if upkey()=1
move camera 5
endif
if downkey()=1
move camera -5
endif
sync
loop
end
regards Alan