#version 460 core
#define STAGE_COMPUTE 1
// the water on the windscreens (water_sim.glsl): the counts of the cells of the grids emptied before the drops are put in them
// (water_grid.comp). a thread per cell, a row of groups per glass

#include "common.glsl"
#include "water_sim.glsl"

layout(local_size_x = WATER_GROUP_SIZE) in;

void main()
{
	uint slot = gl_WorkGroupID.y;
	uint cell = gl_GlobalInvocationID.x;
	if ((water_slots[slot].z < 0.5) || (cell >= uint(WATER_GRID * WATER_GRID)))
		return;
	water_cells[water_grid_base(slot) + cell] = 0u;
}