From eff3bd4e9880efc0c767e3098baa86ab23d77bc7 Mon Sep 17 00:00:00 2001 From: Brecht Van Lommel Date: Mon, 3 Feb 2014 17:06:37 +0100 Subject: Fix T38439: allow IOR in range [0, inf] instead of [1, inf] in Cycles. The same can be achieved by flipping normals on the mesh, but it can be convenient to do this in the shader. --- intern/cycles/kernel/shaders/node_glass_bsdf.osl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'intern/cycles/kernel/shaders/node_glass_bsdf.osl') diff --git a/intern/cycles/kernel/shaders/node_glass_bsdf.osl b/intern/cycles/kernel/shaders/node_glass_bsdf.osl index c79785f2d65..96934199621 100644 --- a/intern/cycles/kernel/shaders/node_glass_bsdf.osl +++ b/intern/cycles/kernel/shaders/node_glass_bsdf.osl @@ -25,7 +25,7 @@ shader node_glass_bsdf( normal Normal = N, output closure color BSDF = 0) { - float f = max(IOR, 1.0 + 1e-5); + float f = max(IOR, 1e-5); float eta = backfacing() ? 1.0 / f: f; float cosi = dot(I, Normal); float Fr = fresnel_dielectric_cos(cosi, eta); -- cgit v1.2.3