Something I was playing with today...
http://www.blitzbasic.co.nz/codearcs/codearcs.php?code=859Can you make it better for me :)
terrain01.bmp is not supplied. What size should its replacement be?
whatever size you want, i normally work with 256x256
It's quick...
I would suggest that it's not actually doing shadow mapping as nothing is casting a shadow, also, you're not getting variation in brightness dependant on the slope incline/decline.
It's alright as a starting point, but certainly needs more work.
Look up cosine interpolation for when you've got a lightsource hitting it from different directions. It's a good way to find the inbetween points between points.
Hi Rob (Dr Av),
I must say that I was inspried by your terrain shader, you've obviously got your head around the stuff. I'm only playing at the moment - I might give up and purchase Terrain Shader 2 if I can't get the algorithm working :)
Hey It now casts long shadows.....