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#ifndef VOLUMETRICS
void node_bsdf_glass(
vec4 color, float roughness, float ior, vec3 N, float ssr_id, out Closure result)
{
N = normalize(N);
vec3 out_spec, out_refr, ssr_spec;
vec3 refr_color = (refractionDepth > 0.0) ? color.rgb * color.rgb :
color.rgb; /* Simulate 2 transmission event */
eevee_closure_glass(N,
vec3(1.0),
vec3(1.0),
int(ssr_id),
roughness,
1.0,
ior,
true,
out_spec,
out_refr,
ssr_spec);
float fresnel = F_eta(ior, dot(N, cameraVec));
vec3 vN = mat3(ViewMatrix) * N;
result = CLOSURE_DEFAULT;
result.radiance = render_pass_glossy_mask(refr_color, out_refr * refr_color) * (1.0 - fresnel);
result.radiance += render_pass_glossy_mask(color.rgb, out_spec * color.rgb) * fresnel;
closure_load_ssr_data(
ssr_spec * color.rgb * fresnel, roughness, N, viewCameraVec, int(ssr_id), result);
}
#else
/* Stub glass because it is not compatible with volumetrics. */
# define node_bsdf_glass(a, b, c, d, e, f) (f = CLOSURE_DEFAULT)
#endif
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