VK_VALVE_shader_mixed_float_dot_product

Other Extension Metadata

Last Modified Date

2026-02-04

IP Status

No known IP claims.

Contributors

• Georg Lehmann, Valve
• Mike Blumenkrantz, Valve

Description

This extension enables support for mixed precision dot product accumulate operations in shaders as defined in SPV_VALVE_mixed_float_dot_product.

New Structures

• Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:
  • VkPhysicalDeviceShaderMixedFloatDotProductFeaturesVALVE

New Enum Constants

• VK_VALVE_SHADER_MIXED_FLOAT_DOT_PRODUCT_EXTENSION_NAME
• VK_VALVE_SHADER_MIXED_FLOAT_DOT_PRODUCT_SPEC_VERSION
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_MIXED_FLOAT_DOT_PRODUCT_FEATURES_VALVE

New SPIR-V Capabilities

• DotProductFloat16AccFloat32VALVE
• DotProductFloat16AccFloat16VALVE
• DotProductBFloat16AccVALVE
• DotProductFloat8AccFloat32VALVE

Version History

• Revision 1, 2026-02-04 (Georg Lehmann)
  • Initial specification