first commit

shader/cnmr.gbuffer

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+[attribute]
+
+    vec3 BaseColor;
+    vec3 Normal;
+    float Metallic;
+    float Roughness;
+
+[gbuffer]
+
+    vec4 gb_color_metallic;
+    vec4 gb_normal_roughness;
+
+[attribute_to_gbuffer]
+
+    gb_color_metallic   =vec4(BaseColor,Metallic);
+    gb_normal_roughness =vec4(Normal,   Roughness);
+
+[gbuffer_to_attribute]
+
+    vec4 gb_cm=texture(gb_color_metallic,FragmentPosition);
+    vec4 gb_cr=texture(gb_normal_roughness,FragmentPosition);
+
+    BaseColor =gb_cm.rgb;
+    Metallic  =gb_cm.a;
+
+    Normal    =gb_cr.rgb;
+    Roughness =gb_cr.a;