Effect ideas

[kblaschke]

It might be a bit early, but I think collecting ideas for possible effects, e.g. in a "standard library" pre-installed with the visualizer, would be a good thing to have.

I'm thinking of it in a way similar to what AVS tried to achieve. AVS shipped with a bunch of built-in effects, and had the ability to load additional DLLs to be used in presets. Preset authors could then layer effects on top of each other and also add scripting and blending to combine them into unique works of art. The new visualizer would work in a very smilar way, but the layering and combining would be scripted instead of using a simple list of effects and setting some properties.

So here's just a bunch of effects which came to my mind, some adopted from Milkdrop and AVS, separated into categories:

Drawing

• Simple waveform with different modes
• Spectrum lines
• Spectrum bards
• Basic geometric shapes, both 2D and 3D
• Animaed/morphing shapes like stars, lissajous patterns etc.
• Particle system with scriptable spawning and movement behavior
• Animated lines and curves (bezier/cubic splines)
• Lasershow
• Flames
• Noise
• Lights, possibly with shadowmap support (prob. needs deferred rendering)
• Motion vectors, scriptable or based on other effects
• Shader-based drawing, may include raycasting
• Rotoblitter
• Text (requires TTF fonts, Unicode support etc.)
• Display image/sprite
• Voice printer

Blending / Post-Processing

• Warping the previous frame or current scene
• Shader-based effect blending
• Film grain
• Brighten/Darken/Solarize/Invert...
• Blur with multiple levels
• Motion blur
• Chromatic abberation
• Tonemapping
• Hue shifting
• Image shift

[revmischa]

• Glitch
• Color channel offsets

[producation]

Drawing

• liquids

Blending / Post-Processing

• hue scaling (shrinking the color space)
• shrink bitrate (number of colors)
• pixelate / posterize
• feedback
• masking