Hi Everyone, I am new into HLSL and trying to build a good SpotLight using deferred shading. I went through Catalin Zima's tutorial (http://www.catalinzima.com/?page_id=55) and was able to get spotlight working. However, I do not like the idea of just plotting a circle on the ground. Also, the spotlight is pretty much view angle dependent ...

Hi, I am fairly new to XNA and stuck with a problem. I have a 2x3 matrix and want to calculate its inverse. Currently, I am storing it in a float [3,2] and need to calculate its inverse. I was wondering if I can use Matrix built in XNA to do this stuff as I will be calling this inverse calculation very frequently. If not, can someone ...