GLSL Shadow Map code sample.

[nicolasbol]

Hello guys,

I've been tinkering a lot with shadowmap and GLSL lately, here are a few binaries with source code:

Raw shadow mapping

Percentage Closer Filtering shadow mapping

Variance Shadow Mapping

It uses GLUT for portability so it works on Win32, Mac and Linux.
Hope it will help someone !

[remdul]

Cool!

[cherryyosh]

Oh man, just got my bug fixed with my shadow maps. Looking to implement VSM's so that tut will be GREAT. thanks a lot!

[James A.]

Great stuff,

I struggled a bit when I first did my shadow maps in OpenGL. someone on here was kind enough to link me to their tutorial on how to do it, and I had to strip his source down to the basics and see where I was making mistakes.

Since then I had always planned on doing a Very Simple Shadows tutorial on GLSL shadow-mapping in GLUT, but it seems you have beaten me to it

[cherryyosh]

nevermind lol

[elias4444]

Thanks for the great tutorial Nicolas! One question though... how can you pull off this same thing without the extra GL_TEXTURE matrix translation? I can't seem to get it to work with that.

Also, in the code, you're polling for a xPixelOffset and a yPixelOffset uniform that don't appear to exist in the shaders.

[Ilian Dinev]

nicolasbol, thanks for the nice tutorials! Keep up the good work, we appreciate it a lot

[AMDFX]

Why is the code with the PCF not working? I see no shadow(s)

[AMDFX]

I found some informations: The PCF Code is only working on nvidia hardware. Any idea why?
I found no extentions or something for that result

[Dark Photon]

I found some informations: The PCF Code is only working on nvidia hardware. Any idea why?
I found no extentions or something for that result

Check AMD's docs on enabling PCF shadow comparisons. NVidia may be allowing it for a combination of state that AMD is rejecting.