CNA Samples

Aiming

Turn a spotlight smoothly toward a cat controlled with the keyboard, gamepad or mouse.

Fuzzy Logic

Adjust distance, angle and pursuit-time weights to change which mouse a tank decides to chase.

Color Replacement

Repaint a spinning car with its original compiled shader while preserving the windows and lights.

Particle Sample

Switch between additive explosions with lingering smoke and a wind-blown smoke plume.

Camera Shake

Shake a 3D scene's camera briefly or for two seconds, then watch it settle back.

Bloom Postprocess

Extract bright areas, blur them in two passes, and combine the glow with a 3D scene.

Distortion

Try an invisibility cloak, heat haze and privacy glass using a screen-space distortion map.

Non-Photorealistic

Turn a spinning ship into a cartoon, pencil sketch or colored hatch drawing.

Normal Mapping

Move around a normal-mapped lizard and rock as a light reveals their surface detail.

Per-Pixel Lighting

Compare five lighting techniques on spheres and low-poly meshes while adjusting the highlights.

Vertex Lighting

Compare flat white shading with directional light calculated across five different meshes.

Rim Lighting

Adjust the glowing rim around a 3D head and switch between rotating the model and camera.