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Topics - Hrolf1

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Support / Matching mouse clicks to 3D co-ords
« on: February 05, 2005, 10:57:16 pm »

I'm writing an applet where an insect follows mouse clicks.
The camera follows the insect from behind (height -240, distance 300).
To save valuable processing time the flat (ie Y=0) landscape is rendered as one big square with a texture on it.
I can use Interact2D to find the landscape, but how do I get more precise x,y,z 3D co-ords from the 2D (x,y)  where the user clicked? I know the y will be 0 but I'm not good enough at maths to work out how to get x & z!
The only way I can think of is breaking the landscape into lots of polys and using Interact2D, but this would play havoc with my processing time!
Can you help?

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