VK-GL-CTS
Khronos Vulkan, OpenGL, and OpenGL ES Conformance Tests
VK-GL-CTS (Vulkan and OpenGL Conformance Test Suite) is the official test suite developed by the Khronos Group to verify conformance of graphics drivers with Vulkan, OpenGL, and OpenGL ES specifications. These tests are essential for vendors seeking certification, as they rigorously check the correctness and completeness of driver implementations against standardized behavior. The suite contains thousands of automated tests that assess rendering accuracy, API behavior, memory usage, and performance consistency. It is widely used by GPU vendors and developers to ensure compatibility, stability, and reliability across platforms and hardware.