diff --git a/XenosRecomp/shader_common.h b/XenosRecomp/shader_common.h
index e1cf1c3..fe8e930 100644
--- a/XenosRecomp/shader_common.h
+++ b/XenosRecomp/shader_common.h
@@ -10,10 +10,12 @@
     #define SPEC_CONSTANT_REVERSE_Z         (1 << 4)
 #endif
 
-#if !defined(__cplusplus) || defined(__INTELLISENSE__)
+#if defined(__air__) || !defined(__cplusplus) || defined(__INTELLISENSE__)
 
+#ifndef __air__
 #define FLT_MIN asfloat(0xff7fffff)
 #define FLT_MAX asfloat(0x7f7fffff)
+#endif
 
 #ifdef __spirv__
 
@@ -162,7 +164,7 @@ void clip(T a)
 }
 
 template<typename T>
-void rcp(T a)
+float rcp(T a)
 {
     return 1.0 / a;
 }
@@ -216,6 +218,12 @@ float h1(float a)
     return 1.0f + w3(a) / (w2(a) + w3(a)) + 0.5f;
 }
 
+struct CubeMapData
+{
+    float3 cubeMapDirections[2];
+    uint cubeMapIndex;
+};
+
 #ifdef __air__
 
 float4 tfetch2DBicubic(constant Texture2DDescriptorHeap& textureHeap,
@@ -265,12 +273,6 @@ float4 tfetch3D(constant Texture3DDescriptorHeap& textureHeap,
     return texture.sample(sampler, texCoord);
 }
 
-struct CubeMapData
-{
-    float3 cubeMapDirections[2];
-    uint cubeMapIndex;
-};
-
 float4 tfetchCube(constant TextureCubeDescriptorHeap& textureHeap,
                   constant SamplerDescriptorHeap& samplerHeap,
                   uint resourceDescriptorIndex,
@@ -321,12 +323,6 @@ float4 tfetch3D(uint resourceDescriptorIndex, uint samplerDescriptorIndex, float
     return g_Texture3DDescriptorHeap[resourceDescriptorIndex].Sample(g_SamplerDescriptorHeap[samplerDescriptorIndex], texCoord);
 }
 
-struct CubeMapData
-{
-    float3 cubeMapDirections[2];
-    uint cubeMapIndex;
-};
-
 float4 tfetchCube(uint resourceDescriptorIndex, uint samplerDescriptorIndex, float3 texCoord, inout CubeMapData cubeMapData)
 {
     return g_TextureCubeDescriptorHeap[resourceDescriptorIndex].Sample(g_SamplerDescriptorHeap[samplerDescriptorIndex], cubeMapData.cubeMapDirections[texCoord.z]);