Specify target version for GLSL compilation (#582)

Specify target version for GLSL compilation

Fixes #549

1 files changed, 8 insertions, 0 deletions

diff --git a/include/amber/amber.h b/include/amber/amber.h
index 2b14475..6c8835a 100644
--- a/include/amber/amber.h
+++ b/include/amber/amber.h
@@ -90,6 +90,14 @@ struct Options {
   /// Holds engine specific configuration. Ownership stays with the caller.
   EngineConfig* config;
   /// The SPIR-V environment to target.
+  /// E.g. "spv1.0", "spv1.3", "vulkan1.0", "vulkan1.1spv1.4".
+  /// If a Vulkan environment, uses the highest version of SPIR-V required
+  /// to be supported by that Vulkan environment.  For SPIR-V 1.4 in
+  /// Vulkan, use "vulkan1.1spv1.4".
+  /// If a SPIR-V environment is specified, assume the lowest version
+  /// of Vulkan that requires support for that version of SPIR-V.
+  /// Shader compilers may limit the list of supported environments.
+  /// If empty, a default of "spv1.0" is used.
   std::string spv_env;
   /// Lists the buffers to extract at the end of the execution
   std::vector<BufferInfo> extractions;