FS gl_FragCoord and and gl_FrontFacing are FS ins, not outs.

diff --git a/builtin_variables.h b/builtin_variables.h
index 6c14a4a..661da6c 100644 (file)
--- a/builtin_variables.h
+++ b/builtin_variables.h
@@ -33,8 +33,8 @@ static const builtin_variable builtin_core_vs_variables[] = {
 };
 
 static const builtin_variable builtin_core_fs_variables[] = {
-   { ir_var_out, "vec4",  "gl_FragCoord" },
-   { ir_var_out, "bool",  "gl_FrontFacing" },
+   { ir_var_in, "vec4",  "gl_FragCoord" },
+   { ir_var_in, "bool",  "gl_FrontFacing" },
    { ir_var_out, "vec4",  "gl_FragColor" },
    { ir_var_out, "float", "gl_FragDepth" },
 };