Simple snow particle system flickering problem

[Software-Sean]

I'm quite new to Raylib and trying to make a simple snow particle system. I managed to make it as below code and built it. But when I run it, the snowflakes flicker and I can easily notice it.

Here's the snowflake image(png) link.

snow.png

and below is the captured video of flickering for your reference.

captured video

Can anyone please tell me what I'm missing here? Thank you.

#include "raylib.h"
#include "raymath.h"

const int screenWidth = 640;
const int screenHeight = 480;

Texture2D texture;

typedef struct {
    Vector2 position;
    Vector2 velocity;
} s_particle;

const int number_particles = 400;
s_particle particles[number_particles];

void spawn_particle(s_particle* pt) {
    pt->position.x = GetRandomValue(-screenWidth * 0.4f, screenWidth);
    pt->position.y = GetRandomValue(-screenHeight * 2, 0);
    float max = 10000.0f;
    pt->velocity.x = (float)(GetRandomValue(1, (int)max) / max) * 0.5f;
    pt->velocity.y = (float)(GetRandomValue(1, (int)max) / max) + 0.8f;
}

void draw_particle(s_particle pt[]) {
    for (int i = 0; i < number_particles; i++) {
        s_particle* particle = &pt[i];
        particle->position.x += particle->velocity.x;
        particle->position.y += particle->velocity.y;

        if (particle->position.x > screenWidth || particle->position.y > screenHeight)
            spawn_particle(particle);

        DrawTexture(texture, particle->position.x, particle->position.y, WHITE);                
    }
}

int main(void)
{
    InitWindow(screenWidth, screenHeight, "raylib example");
    SetTargetFPS(60);

    texture = LoadTexture("snow.png");
    
    for (int i = 0; i < number_particles; i++) {
        spawn_particle(&particles[i]);
    }

    while (!WindowShouldClose())
    {
        BeginDrawing();
        {
            ClearBackground(BLACK);

            draw_particle(particles);

            DrawFPS(0, 0);
        }
        EndDrawing();
    }

    UnloadTexture(texture);

    CloseWindow();

    return 0;
}

[Software-Sean]

One thing I noticed is..... that when the velocity is an integer, like 1 or 2, there's no flicker or jitter. But when the velocity is a decimal, like 0.2f or 0.3f, there's jitter. It probably has something to do with it.