[Ves] Modify uniform variables

[Jon Chmura]

I want to set the value of vertexOpacity in vesGourandTexture shader program.

/// \file vesGouraudTexture_frag.glsl
///
/// \ingroup shaders

uniform lowp float vertexOpacity;

It is given a default value of 1 in vesEngineUniform. But I can't find any accessors for it as there are for point size, line width, etc.

Jon Chmura
jon.chmura at me.com




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