From dffaf2f6c30a582f0fcc958acbfdc936f7b5cce2 Mon Sep 17 00:00:00 2001 From: Mark Burton Date: Thu, 5 Sep 2019 10:31:11 +0100 Subject: [PATCH] Exclude code that uses gl_PrimitiveID from shader when GLSL version < 150. --- resources/shaders/overhang.shader | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/resources/shaders/overhang.shader b/resources/shaders/overhang.shader index cb34f25893..704ab202a4 100644 --- a/resources/shaders/overhang.shader +++ b/resources/shaders/overhang.shader @@ -60,7 +60,11 @@ fragment = highp float NdotR = clamp(dot(viewVector, reflectedLight), 0.0, 1.0); finalColor += pow(NdotR, u_shininess) * u_specularColor; + #if __VERSION__ >= 150 finalColor = (u_faceId != gl_PrimitiveID) ? ((-normal.y > u_overhangAngle) ? u_overhangColor : finalColor) : u_faceColor; + #else + finalColor = (-normal.y > u_overhangAngle) ? u_overhangColor : finalColor; + #endif gl_FragColor = finalColor; gl_FragColor.a = 1.0;