declare const _default: "\nfloat saturate(float x) {\n    return clamp(x, 0.0, 1.0);\n}\n\nvec3 unpack3NFloats(float src) {\n    float r = fract(src);\n    float g = fract(src * 256.0);\n    float b = fract(src * 65536.0);\n    return vec3(r, g, b);\n}\n\nvec3 tex1Dlod_lerp(TEXTURE_ACCEPT_HIGHP(tex), vec2 tc, out vec3 w) {\n    vec4 a = texture2D(tex, tc);\n    vec4 b = texture2D(tex, tc + graphSampleSize);\n    float c = fract(tc.x * graphNumSamples);\n\n    vec3 unpackedA = unpack3NFloats(a.w);\n    vec3 unpackedB = unpack3NFloats(b.w);\n    w = mix(unpackedA, unpackedB, c);\n\n    return mix(a.xyz, b.xyz, c);\n}\n\n#define HASHSCALE4 vec4(1031, .1030, .0973, .1099)\nvec4 hash41(float p) {\n    vec4 p4 = fract(vec4(p) * HASHSCALE4);\n    p4 += dot(p4, p4.wzxy+19.19);\n    return fract(vec4((p4.x + p4.y)*p4.z, (p4.x + p4.z)*p4.y, (p4.y + p4.z)*p4.w, (p4.z + p4.w)*p4.x));\n}\n\nvoid main(void) {\n    if (gl_FragCoord.x > numParticles) discard;\n\n    readInput(vUv0.x);\n    visMode = inShow? 1.0 : -1.0;\n\n    vec4 rndFactor = hash41(gl_FragCoord.x + seed);\n\n    float particleRate = rate + rateDiv * rndFactor.x;\n\n    outLife = inLife + delta;\n    float nlife = clamp(outLife / lifetime, 0.0, 1.0);\n\n    vec3 localVelocityDiv;\n    vec3 velocityDiv;\n    vec3 paramDiv;\n    vec3 localVelocity = tex1Dlod_lerp(TEXTURE_PASS(internalTex0), vec2(nlife, 0), localVelocityDiv);\n    vec3 velocity =      tex1Dlod_lerp(TEXTURE_PASS(internalTex1), vec2(nlife, 0), velocityDiv);\n    vec3 params =        tex1Dlod_lerp(TEXTURE_PASS(internalTex2), vec2(nlife, 0), paramDiv);\n    float rotSpeed = params.x;\n    float rotSpeedDiv = paramDiv.y;\n\n    vec3 radialParams = tex1Dlod_lerp(TEXTURE_PASS(internalTex3), vec2(nlife, 0), paramDiv);\n    float radialSpeed = radialParams.x;\n    float radialSpeedDiv = radialParams.y;\n\n    bool respawn = inLife <= 0.0 || outLife >= lifetime;\n    inPos = respawn ? calcSpawnPosition(rndFactor.xyz, rndFactor.x) : inPos;\n    inAngle = respawn ? mix(startAngle, startAngle2, rndFactor.x) : inAngle;\n\n#ifndef LOCAL_SPACE\n    vec3 radialVel = inPos - emitterPos;\n#else\n    vec3 radialVel = inPos;\n#endif\n    radialVel = (dot(radialVel, radialVel) > 1.0E-8) ? radialSpeed * normalize(radialVel) : vec3(0.0);\n    radialVel += (radialSpeedDiv * vec3(2.0) - vec3(1.0)) * radialSpeedDivMult * rndFactor.xyz;\n\n    localVelocity +=    (localVelocityDiv * vec3(2.0) - vec3(1.0)) * localVelocityDivMult * rndFactor.xyz;\n    velocity +=         (velocityDiv * vec3(2.0) - vec3(1.0)) * velocityDivMult * rndFactor.xyz;\n    rotSpeed +=         (rotSpeedDiv * 2.0 - 1.0) * rotSpeedDivMult * rndFactor.y;\n\n    addInitialVelocity(localVelocity, rndFactor.xyz);\n\n#ifndef LOCAL_SPACE\n    outVel = emitterMatrix * localVelocity + (radialVel + velocity) * emitterScale;\n#else\n    outVel = (localVelocity + radialVel) / emitterScale + emitterMatrixInv * velocity;\n#endif\n\n    outPos = inPos + outVel * delta;\n    outAngle = inAngle + rotSpeed * delta;\n";
export default _default;