Modify Program 12.1 to experiment with various values for inner and outer tessellation levels and observing the resulting rendered mesh.

Program 12.1

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Java/JOGL application public int createShader Program (String vS, String tCS, String tES, String fS) { GL4 gl = (GL4) GLContext.getCurrentGL(); String vshaderSource[ ] = Utils.readShaderSource (vS); String tcshaderSource[ ] = Utils.readShaderSource(tCS); String teshaderSource[] = Utils.readShaderSource(tES); String fshaderSource[ ] = Utils.readShaderSource(fS); int vShader = gl.glCreateShader(GL_VERTEX_SHADER); int tcShader = gl.glCreateShader(GL_TESS_CONTROL_SHADER); int teShader = gl.glCreateShader(GL_TESS_EVALUATION_SHADER); int fShader = gl.glCreateShader(GL_FRAGMENT_SHADER); gl.glShaderSource(vShader, vshaderSource.length, vshaderSource, null, 0); gl.glShaderSource(tcShader, tcshaderSource.length, tcshaderSource, null, 0); gl.gl ShaderSource (teShader, teshaderSource.length, teshaderSource, null, 0); gl.glShaderSource(fShader, fshaderSource.length, fshaderSource, null, 0);