From 613da72ac0c2f56a5e1a2c4becf7e373a2b82e77 Mon Sep 17 00:00:00 2001
From: Teodor Tanasoaia <28601907+teoxoy@users.noreply.github.com>
Date: Tue, 3 Oct 2023 13:34:56 +0200
Subject: [PATCH] [spv-out] require ClipDistance & CullDistance capabilities if
 necessary (#2528)

---
 src/back/spv/writer.rs | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/back/spv/writer.rs b/src/back/spv/writer.rs
index 56d018b6f3..8cad9c4d27 100644
--- a/src/back/spv/writer.rs
+++ b/src/back/spv/writer.rs
@@ -1514,8 +1514,20 @@ impl Writer {
                     // vertex
                     Bi::BaseInstance => BuiltIn::BaseInstance,
                     Bi::BaseVertex => BuiltIn::BaseVertex,
-                    Bi::ClipDistance => BuiltIn::ClipDistance,
-                    Bi::CullDistance => BuiltIn::CullDistance,
+                    Bi::ClipDistance => {
+                        self.require_any(
+                            "`clip_distance` built-in",
+                            &[spirv::Capability::ClipDistance],
+                        )?;
+                        BuiltIn::ClipDistance
+                    }
+                    Bi::CullDistance => {
+                        self.require_any(
+                            "`cull_distance` built-in",
+                            &[spirv::Capability::CullDistance],
+                        )?;
+                        BuiltIn::CullDistance
+                    }
                     Bi::InstanceIndex => BuiltIn::InstanceIndex,
                     Bi::PointSize => BuiltIn::PointSize,
                     Bi::VertexIndex => BuiltIn::VertexIndex,