Workshop 4 - Deferred Shading

The base code for this lab can be found on GitHub here

Base Code

When you run the base code, you should see some diffuse shaded spheres moving around slowly.

The base code is rendering a scene into a G-Buffer, then doing a light pass. However, there is no light code, so the lights are rendered as spheres (in the usual way).

• You can hold [H] to see the colors in the G-Buffer.
• You can hold [J] to see the normals in the G-Buffer.
• You can hold [K] to see the depth in the G-Buffer.
• You can hold [L] to see the reconstructed world-space positions from the G-Buffer.

All of the debug modes are implemented in debug_frag.glsl.

For this workshop, we need to implement all of the deferred shading in light_frag.glsl. We’ll also need to do some setup in main.cpp pertaining to the lighting pass.

Light Volumes

G-Buffer Colors

G-Buffer Normals

G-Buffer Depth

G-Buffer Positions