#version 450
#extension GL_EXT_shader_atomic_float : require

shared float shared_v;
layout(set = 0, binding = 0, r32f) uniform image2D uImage;

layout(set = 0, binding = 1) buffer SSBO
{
	float v;
};

void main()
{
	float value = atomicAdd(shared_v, 2.0);
	atomicAdd(v, value);
	imageAtomicAdd(uImage, ivec2(gl_GlobalInvocationID.xy), value);
	value = imageAtomicExchange(uImage, ivec2(gl_GlobalInvocationID.xy), value);
}