vkCmdTraceRaysNV

To dispatch ray tracing use:

void vkCmdTraceRaysNV(
    VkCommandBuffer commandBuffer,
    VkBuffer raygenShaderBindingTableBuffer,
    VkDeviceSize raygenShaderBindingOffset,
    VkBuffer missShaderBindingTableBuffer,
    VkDeviceSize missShaderBindingOffset,
    VkDeviceSize missShaderBindingStride,
    VkBuffer hitShaderBindingTableBuffer,
    VkDeviceSize hitShaderBindingOffset,
    VkDeviceSize hitShaderBindingStride,
    VkBuffer callableShaderBindingTableBuffer,
    VkDeviceSize callableShaderBindingOffset,
    VkDeviceSize callableShaderBindingStride,
    uint32_t width,
    uint32_t height,
    uint32_t depth);

• commandBuffer is the command buffer into which the command will be recorded.
• raygenShaderBindingTableBuffer is the buffer object that holds the shader binding table data for the ray generation shader stage.
• raygenShaderBindingOffset is the offset in bytes (relative to raygenShaderBindingTableBuffer) of the ray generation shader being used for the trace.
• missShaderBindingTableBuffer is the buffer object that holds the shader binding table data for the miss shader stage.
• missShaderBindingOffset is the offset in bytes (relative to missShaderBindingTableBuffer) of the miss shader being used for the trace.
• missShaderBindingStride is the size in bytes of each shader binding table record in missShaderBindingTableBuffer.
• hitShaderBindingTableBuffer is the buffer object that holds the shader binding table data for the hit shader stages.
• hitShaderBindingOffset is the offset in bytes (relative to hitShaderBindingTableBuffer) of the hit shader group being used for the trace.
• hitShaderBindingStride is the size in bytes of each shader binding table record in hitShaderBindingTableBuffer.
• callableShaderBindingTableBuffer is the buffer object that holds the shader binding table data for the callable shader stage.
• callableShaderBindingOffset is the offset in bytes (relative to callableShaderBindingTableBuffer) of the callable shader being used for the trace.
• callableShaderBindingStride is the size in bytes of each shader binding table record in callableShaderBindingTableBuffer.
• width is the width of the ray trace query dimensions.
• height is height of the ray trace query dimensions.
• depth is depth of the ray trace query dimensions.

When the command is executed, a ray generation group of width × height × depth rays is assembled.