buffer

Uniform Buffer

• Vulkan : BufferUsageFlags : UNIFORM BUFFER

• Dx : Constant Buffer

• OpenGL : Uniform Buffer Object

• HLSL : cbuffer _ : register(b##bind, space##set){type param;};

• GLSL : layout (set = 3, binding = 2) uniform in_lights { Light light;};

• 一般 Alignment 16 bytes, 大小限制为 16 KiB

• Unity : Shader Properties, CBUFFER

Shader Storage Buffer Objects (SSBOs)

• 现代图形 api 上才有, GLES 3.1 以上

• GLSL : layout(std430, binding = 2) buffer MyBuffer

• HLSL : RW/StructuredBuffer<MyStructType> myBuffer : register(t2);

• Vulkan : STORAGE_BUFFER

Push Constants

• 只有 Vulkan 才有, 每次提交时要设置