playcanvas/build/playcanvas/src/scene/shader-lib/wgsl/chunks/particle/frag/particleUpdaterAABB.d.ts

PlayCanvas WebGL game engine

declare const _default: "\nuniform spawnBounds: mat3x3f;\nuniform spawnPosInnerRatio: vec3f;\n\nfn calcSpawnPosition(inBounds: vec3f, rndFactor: f32) -> vec3f {\n    var pos = inBounds - vec3f(0.5);\n\n    let posAbs = abs(pos);\n    let maxComp = max(posAbs.x, max(posAbs.y, posAbs.z));\n    let maxPos = vec3f(maxComp);\n\n    let edge = maxPos + (vec3f(0.5) - maxPos) * uniform.spawnPosInnerRatio;\n\n    pos.x = edge.x * select(2.0 * pos.x, sign(pos.x), maxPos.x == posAbs.x);\n    pos.y = edge.y * select(2.0 * pos.y, sign(pos.y), maxPos.y == posAbs.y);\n    pos.z = edge.z * select(2.0 * pos.z, sign(pos.z), maxPos.z == posAbs.z);\n\n    #ifndef LOCAL_SPACE\n        return uniform.emitterPos + uniform.spawnBounds * pos;\n    #else\n        return uniform.spawnBounds * pos;\n    #endif\n}\n\nfn addInitialVelocity(localVelocity: ptr<function, vec3f>, inBounds: vec3f) {\n    *localVelocity = *localVelocity - vec3f(0.0, 0.0, uniform.initialVelocity);\n}\n";
export default _default;