fxFlash

The bloom of a discharge, drawn procedurally on a card for additive blending. With shape 0 it is a ragged star facing the camera (zero_billboard): five to seven spikes of hashed length and turn around a white-hot core, each spike brightest at its root and fading to its tip. With shape above 0.5 it is a tongue of flame on a card turned onto the element's Y axis (zero_billboard_streak), running from the middle of the card (the muzzle) to its tip along +Y, wavering at its edges and cooling toward the tip, on the half of the card between its middle and its +Y end. The petals are re-seeded every 1/30 s of world time, so a flash held for more than one frame flickers. The colour is the element's data0 colour over the shape, plus a white (1.0, 0.95, 0.85) core scaled by the colour's brightest channel.

The combat graphs beside it in combat/ draw with it as fxFlash, additive. The impact graph draws two stars (shape 0) at the point of impact for three frames. The muzzleFlash graph draws three stars turned apart by their seeds (shape 0) and one tongue of flame down the bore (shape 1). Both colour the flash from an HDR ramp that falls to black over its short life. The bench_mixed scene places both graphs and the main scene places muzzleFlash.

The shader includes @builtin::shaderModules.billboard.

Properties

Lanes