piping the texture attachments

note.md

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+# Texture Samplers
+|GLSL sampler|OpenGL texture enum|Texture type|
+|---|---|---|
+gsampler1D        | GL_TEXTURE_1D                   | 1D texture
+gsampler2D        | GL_TEXTURE_2D                   | 2D texture
+gsampler3D        | GL_TEXTURE_3D                   | 3D texture
+gsamplerCube      | GL_TEXTURE_CUBE_MAP             | Cubemap Texture
+gsampler2DRect    | GL_TEXTURE_RECTANGLE            | Rectangle Texture
+gsampler1DArray   | GL_TEXTURE_1D_ARRAY             | 1D Array Texture
+gsampler2DArray   | GL_TEXTURE_2D_ARRAY             | 2D Array Texture
+gsamplerCubeArray | GL_TEXTURE_CUBE_MAP_ARRAY       | Cubemap Array Texture
+gsamplerBuffer    | GL_TEXTURE_BUFFER               | Buffer Texture
+gsampler2DMS      | GL_TEXTURE_2D_MULTISAMPLE       | Multisample Texture
+gsampler2DMSArray | GL_TEXTURE_2D_MULTISAMPLE_ARRAY | Multisample Array Texture 
+
+
+# Shadow Samplers
+|GLSL sampler|OpenGL texture enum|
+|---|---|
+sampler1DShadow        | GL_TEXTURE_1D
+sampler2DShadow        | GL_TEXTURE_2D
+samplerCubeShadow      | GL_TEXTURE_CUBE_MAP
+sampler2DRectShadow    | GL_TEXTURE_RECTANGLE
+sampler1DArrayShadow   | GL_TEXTURE_1D_ARRAY
+sampler2DArrayShadow   | GL_TEXTURE_2D_ARRAY
+samplerCubeArrayShadow | GL_TEXTURE_CUBE_MAP_ARRAY