Reduce amount of attributes for depth pass

Use fragment depth from built-in gl_FragCoord instead of our own depth attribute

diff --git a/shader_glsl.h b/shader_glsl.h
index 36542c53810ab34c673013cdc3d583e3ce4a7d7d..10c4347b6a4dbe3922888828311e526ceb123a9f 100644 (file)
--- a/shader_glsl.h
+++ b/shader_glsl.h
@@ -172,7 +172,6 @@
 "#endif\n",
 "\n",
 "#ifdef MODE_DEPTH_OR_SHADOW\n",
-"dp_varying highp float Depth;\n",
 "#ifdef VERTEX_SHADER\n",
 "void main(void)\n",
 "{\n",
@@ -192,7 +191,6 @@
 "#ifdef USETRIPPY\n",
 "      gl_Position = TrippyVertex(gl_Position);\n",
 "#endif\n",
-"      Depth = gl_Position.z;\n",
 "}\n",
 "#endif\n",
 "\n",
@@ -200,7 +198,7 @@
 "void main(void)\n",
 "{\n",
 "#ifdef USEDEPTHRGB\n",
-"      dp_FragColor = encodedepthmacro(Depth);\n",
+"      dp_FragColor = encodedepthmacro(gl_FragCoord.z);\n",
 "#else\n",
 "      dp_FragColor = vec4(1.0,1.0,1.0,1.0);\n",
 "#endif\n",