playcanvas/build/playcanvas.prf/src/scene/shader-lib/chunks/particle/frag/particleUpdaterAABB.js

PlayCanvas WebGL game engine

var particleUpdaterAABBPS = "\nuniform mat3 spawnBounds;\nuniform vec3 spawnPosInnerRatio;\nvec3 calcSpawnPosition(vec3 inBounds, float rndFactor) {\n	vec3 pos = inBounds - vec3(0.5);\n	vec3 posAbs = abs(pos);\n	vec3 maxPos = vec3(max(posAbs.x, max(posAbs.y, posAbs.z)));\n	vec3 edge = maxPos + (vec3(0.5) - maxPos) * spawnPosInnerRatio;\n	pos.x = edge.x * (maxPos.x == posAbs.x ? sign(pos.x) : 2.0 * pos.x);\n	pos.y = edge.y * (maxPos.y == posAbs.y ? sign(pos.y) : 2.0 * pos.y);\n	pos.z = edge.z * (maxPos.z == posAbs.z ? sign(pos.z) : 2.0 * pos.z);\n#ifndef LOCAL_SPACE\n	return emitterPos + spawnBounds * pos;\n#else\n	return spawnBounds * pos;\n#endif\n}\nvoid addInitialVelocity(inout vec3 localVelocity, vec3 inBounds) {\n	localVelocity -= vec3(0, 0, initialVelocity);\n}\n";

export { particleUpdaterAABBPS as default };