HR + Phone screen + 4 Onsite Rounds

Overall, a decent interview process. Except for one round where the interviewer was late and not very kind. The focus was a lot on low-level C programming.

a. Check if a number is a power of 2. b. GLSL shader debug. c. Pointers. d. Memory allocation and deallocation – 2D matrix. e. Explain the graphics pipeline. f. What is the GPU architecture/programming model? g. Can we have depth testing before the fragment shader? h. What is a particular case when we would need depth testing after the fragment shader? i. Design a parking garage. j. Cycle in a directed graph. k. SetBit/ClearBit/isBitSET. l. Implement your own memoryAlloc function. m. Delete nodes with a particular value in a linked list. n. Allocate a 2D array using malloc and access its elements. o. OpenGL vs. OpenGL ES (OpenGL basics). p. How would you debug a memory leak? r. At what GL call does command buffer submission happen?