Document missing?

Where can I find the document of definition of P_COLOR, P_UV, P_DEFAULT…etc, difference between v_UserData and a_UserData? and explanation how to code the shaders on corona shader playground correctly into lua file for beginners?

Here’s the document in question: Custom Shader Effects.

You should be using the CoronaVertexUserData name, rather than those internal ones. As for what they are, a_UserData is the “attribute”, so basically the view of that member of the vertex that got uploaded to the GPU; v_UserData is a “varying”: the vertex shader puts the attribute into this variable, which is also interpolated (“varies”) across the fragments and visible to the fragment shader.

My bad, found what I need in the document :sweat_smile:


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