C++

All of these questions are about OpenGL as used in our examples and assignments. These questions are about programming shaders. a. (3 points) Write the declaration of a variable that will receive vec4 data from an array buffer. The variable should be named bvariance and should be at location 3. b. (3 points) Write the declaration of a variable that would be used in the vertex shader that will send vec3 data to the fragment shader. The variable should be named vNorm c. (3 points) Write the declaration of a variable in the fragment shader that will receive vec 3 data from the vertex shader. The variable should be named vNorm d. (3 points) Write the declaration of a variable named frag_color to be used in the fragment shader to receive the color to be assigned to that fragment. e. (3 points) Write the declaration of a uniform variable named surface_effect of type integer to be used in one of the shaders. The location of the variable should be 2