Changed mexFunction call to MEX_DISPATCH

This enables defining multiple functions per Matlab mex module

matlab/+eos/+render/extract_texture.m

-function [texturemap] = extract_texture(mesh, rendering_params, image, ...
+function [ texturemap ] = extract_texture(mesh, rendering_params, image, ...
     compute_view_angle, isomap_resolution)
 % EXTRACT_TEXTURE  Extracts the texture from an image and returns the texture map.
 %   [ texturemap ] = EXTRACT_TEXTURE(mesh, rendering_params, image, ...
@@ -18,6 +18,6 @@ function [texturemap] = extract_texture(mesh, rendering_params, image, ...
 if (~exist('compute_view_angle', 'var')), compute_view_angle = false; end
 if (~exist('isomap_resolution', 'var')), isomap_resolution = 512; end
 
-[ texturemap ] = render(mesh, rendering_params, image, compute_view_angle, isomap_resolution);
+[ texturemap ] = render('extract_texture', mesh, rendering_params, image, compute_view_angle, isomap_resolution);
 
 end

matlab/+eos/+render/private/render.cpp

@@ -25,6 +25,7 @@
 #include "mexplus_eos_types.hpp"
 
 #include "mexplus.h"
+#include "mexplus/dispatch.h"
 
 #include "opencv2/core/core.hpp"
 
@@ -33,7 +34,7 @@
 using namespace eos;
 using namespace mexplus;
 
-void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
+MEX_DEFINE(extract_texture) (int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
 {
 	// Check for proper number of input and output arguments:
 	if (nrhs != 5) {
@@ -63,3 +64,5 @@ void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
 	OutputArguments output(nlhs, plhs, 1);
 	output.set(0, isomap);
 };
+
+MEX_DISPATCH;