Handling User Defined shaders in OpenGL ES 2.0 framework -

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i developing frame-based animation framework in opengl es 2.0 develop 3d graphics applications.

i have used few pre-defined shaders (for color, texture, alpha....) attributes , uniform known.

now want handle user given shaders. loading, compiling , linking these shaders fine. how map attributes , uniforms corresponding data.

suppose, in user given shader, vertex data has passed attribute "a_vertex". in other shader, may "a_myvertex". name of attribute pass vertex data different different user given shaders.

my question how handle mapping of shader attributes , uniforms in user given shaders.

please give suggestions this.

thanks...


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