--- cvsroot/libgender/material.C	2004/11/06 04:31:01	1.43
+++ cvsroot/libgender/material.C	2004/11/06 14:49:03	1.44
@@ -71,6 +71,8 @@
 
 void material::enable (view &ctx)
 {
+  static shader::compile::varying_1f Z;//D
+
   pass::matmap_t &matmap = ctx.pass_data->matmap;
 
   pass::matmap_t::iterator i = matmap.find (this);
@@ -89,7 +91,8 @@
       {
         using namespace shader::compile;
 
-        z (vout.position) = (log2 (z (vout.position) + 1.F) * 1.82F - 1);
+        Z = pow (z (vout.position) / 2.F, 0.2);
+        z (vout.position) = (Z * 2 - 1) * w (vout.position);
         //z (vout.position) = z (vout.position) - 1;
       }
 
@@ -106,6 +109,13 @@
       else
         shader::compile::fout.frag_color = shader::compile::float4 (1., 0., 1., 1.);
 
+       {
+        using namespace shader::compile;
+        //x (fout.frag_color) = Z;//D
+        //y (fout.frag_color) = Z;//D
+        //z (fout.frag_color) = Z;//D
+       }
+
       fsh_src = shader::shader_builder::stop ();
 
       shader::program_object po = shader::get_program (vsh_src, fsh_src);