Calamity Flame (劫焔) — Compressed Fireball Spell [VRChat / Modular Avatar]

A fireball compressed in the palm, detonated high above.

A spell gimmick for VRChat avatars. Stretch your right arm out to the side and press Cast in the menu: a fireball about 5 m across appears just outside your palm. After about 7.5 seconds of compression it is fired, detonating about 420 m ahead and 360 m up, and the fireball grows to about 700 m across.

Sequence

1. Kindle — A red fireball appears outside your palm.
2. Compress — It is compressed over about 7.5 seconds. The smaller it gets, the hotter it turns: red → orange → yellow → white, pulling the scenery around it inward.
3. Fire — A moment of stillness, then it is fired as a white line of light.
4. Burst — Where the shot stops, a fireball in a dark red shell swells, light leaking from its cracks. The shell breaks with a flash and the fireball spreads.
5. Shockwave — About 1.6 seconds later, the shockwave and the sound of the explosion arrive.
6. Cooling — The fireball rises slowly as it cools: white → yellow → orange → red → black smoke (about 43 seconds from casting).

Features

• Scale: a fireball about 700 m across.
• Anchored where you cast: the detonation point is fixed at the moment you cast, so you can move freely afterward.
• Light first, sound later: the shockwave and sound arrive a moment after the flash.
• Everyone around you sees and hears it.
• One-click install from the Tools menu.

Vision effects (menu toggle, off by default)

When on, the explosion flash, burn-in, fire-tinted screen, shockwave distortion, heat haze, and the scenery being pulled into the fireball appear on the screens of people watching.

Photosensitivity

• No flickering. The screen goes white only once, at the explosion, and slowly returns.
• No screen shake.
• Vision effects are off by default.

Read before use

Vision effects appear on the screen of everyone watching. In public instances or anywhere people haven't agreed, keep them off. Use it in a wide world.

Install

Modular Avatar based. In Unity: Tools → 天禍堂 (Tenkado) → 劫焔 (Calamity Flame) → 「選択中のアバターに導入」 (Install to selected avatar), then upload.

Unity and in-game menu labels are in Japanese; Install_EN.txt gives the English meaning of each one.

Requirements

• VRChat PC only (no Quest / Android)
• Unity 2022.3 / VRChat SDK - Avatars
• Modular Avatar (required, install separately)
• Humanoid avatar

Please note

• Uses 2 bits of synced parameters.
• If the world's draw distance is short, the far side of the fireball may appear cut off.
• VRChat limits avatar audio to 40 m, so the sound of the distant explosion is played near the caster.
• Uses custom shaders. Viewers who block shaders won't see it.
• Depending on viewers' safety settings, some effects or sounds may not show.

Sound

Made from CC0 sources, processed and layered by Tenkado. No credit required. Sources are listed in Audio/CREDITS.txt.

Included

• CalamityFlame_v1.0.1.unitypackage (gimmick, shaders, textures, 3 sound effects)
• Install_EN.txt / 導入方法.txt
• Terms_EN.txt / 利用規約.txt

Terms (summary)

• Editing OK / reusing parts OK
• No use with vision effects on in public instances or on people who haven't agreed
• No use to harass anyone
• No redistribution, transfer, or resale of the data, edited or not
• Full terms in Terms_EN.txt

Avatar shown: Komano (狛乃)

Made by Tenkado (天禍堂), Japan.