#version 450 layout (location = 0) in vec3 in_dir; layout (location = 0) out vec4 out_frag_color; layout (set = 0, binding = 0) uniform samplerCube environment_map; void main() { vec3 dir = normalize(in_dir); out_frag_color = vec4(texture(environment_map, dir).rgb, 1.0f); }