#version 310 es
layout(local_size_x = 8, local_size_y = 8) in;

layout(rgba8, set = 0, binding = 0) uniform writeonly mediump image2D uImage;

layout(push_constant, std430) uniform PushConstants
{
   vec2 inv_resolution;
   float frame;
   float dummy;
} constants;

void main()
{
   vec2 uv = (vec2(gl_GlobalInvocationID.xy) + 0.5) * constants.inv_resolution;
   vec4 color = vec4(sin(uv.x * 50.0 + constants.frame * 0.1) + 0.5, cos(uv.y * 55.0 + constants.frame * 0.2), 0.2, 1.0);
   imageStore(uImage, ivec2(gl_GlobalInvocationID.xy), color);
}