How expensive is branching in an OptiX program? Specifically I am curious about places where all cuda processes should be taking the same part of the branch. For instance
statement1; //takes 1 sec
statement2; //takes 1 sec
statement3; //takes 1 sec
statement4; //takes 1 sec
“a” is a variable I am setting from the CPU, so for any given launch it will be either 1, or 2. Will the shader still take 4 seconds to complete or is it smart enough to skip over one branch if none of the processes are taking it? I am asking because the code will remain simpler if I can keep this in but could potentially be split into separate shaders if not.