GLSL Shaders (Reflection and Refraction)

GLSL shaders. Have a look. Pretty spiffy! Realtime, refraction a bit cheating, but overall a good start for a week or two ;)

Category:

Science & Technology

Tags:

• computer
• shader
• glsl
• reflection
• refraction
• pyopengl
• python
• shaders

[GeometrianGL]

Yes, this is done using a cubemap. This is an old video; I actually lost the code that made this, then recreated it. Yeah. It's been a while. I think it's dynamic here, although because there's nothing else, it might as well have been static. My new OpenGL library supports both.

[GeometrianGL]

Yes and no. When you look through a transparent object, you'll get refraction (what you see here). If you look at a curved mirror, you'll get distortions, but that's still reflection. Anytime light is bent (not bounces) that's refraction. In games, reflection and refraction can often take a lot of computational bandwidth. Thus, most lighting effects in games are shadows at most, if anything at all. Maybe I don't understand your question though.

[Einhanderkiller]

Reminds me of the tech demo NVIDIA released for the GeForce 2.

[MDMstudio]

How are you doing the reflection? In my experience of Game Shaders, most of them are done with a cube map, if you are using that method, are you using a static cube map, or is the cube map changing images each frame? Or are you using another method all together? Good vid!

[halfmanhalfman]

May I ask. Most space distortion in video games are by refraction right?