Tutorial - Chapter 3 정리

Rendering pipeline

 

---

1. Vertex Fetch

• DirectX : Input Assembler라고 함
• Scheduler라는 하드웨어가 vertices와 attributes를 다음 단계로 전송해줌

 

2. Vertex Processing

AMD GPU

• 1 Graphics Command Processor: This coordinates the work processes.
• 4 Shader Engines (SE): An SE is an organizational unit on the GPU that can serve an entire pipeline. Each SE has a geometry processor, a rasterizer and Compute Units.
  • 쉐이더 하나만 사용 가능
• 9 Compute Units (CU): A CU is nothing more than a group of shader cores.
• 64 shader cores: A shader core is the basic building block of the GPU where all of the shading work is done.

ios Mobile GPU

• 6 USCs and 32 cores per USC for a total of only 192 cores. Vertex Descriptor를 사용하면, MTLBuffer의 타입과 쉐이더의 타입이 달라도 잘 변환해준다.
• Distributer라는 하드웨어가 다음 단계로 전송한다.
•  

 

3. Primitive Assembly

• vertices belonging to the same geometrical shape (primitive) are always in the same block.