diff --git a/include/bgfx.h b/include/bgfx.h
index 14705cc3..b29c15cc 100644
--- a/include/bgfx.h
+++ b/include/bgfx.h
@@ -243,8 +243,9 @@
 #define BGFX_CAPS_TEXTURE_FORMAT_PTC22   UINT64_C(0x0000000000002000)
 #define BGFX_CAPS_TEXTURE_FORMAT_PTC24   UINT64_C(0x0000000000004000)
 #define BGFX_CAPS_TEXTURE_3D             UINT64_C(0x0000000000010000)
-#define BGFX_CAPS_INSTANCING             UINT64_C(0x0000000000020000)
-#define BGFX_CAPS_RENDERER_MULTITHREADED UINT64_C(0x0000000000040000)
+#define BGFX_CAPS_VERTEX_ATTRIB_HALF     UINT64_C(0x0000000000020000)
+#define BGFX_CAPS_INSTANCING             UINT64_C(0x0000000000040000)
+#define BGFX_CAPS_RENDERER_MULTITHREADED UINT64_C(0x0000000000080000)
 
 ///
 #define BGFX_HANDLE(_name) \
@@ -316,7 +317,7 @@ namespace bgfx
 		{
 			Uint8,
 			Int16,
-			Half,
+			Half, // Availability depends on: BGFX_CAPS_VERTEX_ATTRIB_HALF.
 			Float,
 
 			Count
@@ -325,6 +326,7 @@ namespace bgfx
 
 	struct TextureFormat
 	{
+		// Availability depends on BGFX_CAPS_TEXTURE_FORMAT_*.
 		enum Enum
 		{
 			BC1,    // DXT1
diff --git a/src/renderer_d3d11.cpp b/src/renderer_d3d11.cpp
index b0d724ff..aac27c3d 100644
--- a/src/renderer_d3d11.cpp
+++ b/src/renderer_d3d11.cpp
@@ -490,6 +490,7 @@ namespace bgfx
 			g_caps.supported |= ( 0
 								| BGFX_CAPS_INSTANCING
 								| BGFX_CAPS_TEXTURE_3D
+								| BGFX_CAPS_VERTEX_ATTRIB_HALF
 								);
 			g_caps.maxTextureSize = D3D11_REQ_TEXTURE2D_U_OR_V_DIMENSION;
 
diff --git a/src/renderer_d3d9.cpp b/src/renderer_d3d9.cpp
index 837b33e2..d7aaa447 100644
--- a/src/renderer_d3d9.cpp
+++ b/src/renderer_d3d9.cpp
@@ -407,7 +407,10 @@ namespace bgfx
 								| BGFX_CAPS_TEXTURE_FORMAT_BC2
 								| BGFX_CAPS_TEXTURE_FORMAT_BC3
 								);
-			g_caps.supported |= BGFX_CAPS_TEXTURE_3D;
+			g_caps.supported |= ( 0
+								| BGFX_CAPS_TEXTURE_3D
+								| BGFX_CAPS_VERTEX_ATTRIB_HALF
+								);
 			g_caps.maxTextureSize = bx::uint32_min(m_caps.MaxTextureWidth, m_caps.MaxTextureHeight);
 
 #if BGFX_CONFIG_RENDERER_USE_EXTENSIONS
diff --git a/src/renderer_gl.cpp b/src/renderer_gl.cpp
index 7a50715e..a38c00aa 100644
--- a/src/renderer_gl.cpp
+++ b/src/renderer_gl.cpp
@@ -2409,7 +2409,14 @@ namespace bgfx
 							| ptc1Supported  ? BGFX_CAPS_TEXTURE_FORMAT_PTC12|BGFX_CAPS_TEXTURE_FORMAT_PTC14|BGFX_CAPS_TEXTURE_FORMAT_PTC14A|BGFX_CAPS_TEXTURE_FORMAT_PTC12A : 0
 							| ptc2Supported  ? BGFX_CAPS_TEXTURE_FORMAT_PTC22|BGFX_CAPS_TEXTURE_FORMAT_PTC24 : 0
 							);
-		g_caps.supported |= !!(BGFX_CONFIG_RENDERER_OPENGL|BGFX_CONFIG_RENDERER_OPENGLES3) ? BGFX_CAPS_TEXTURE_3D : 0;
+		g_caps.supported |= !!(BGFX_CONFIG_RENDERER_OPENGL|BGFX_CONFIG_RENDERER_OPENGLES3)
+						 ? BGFX_CAPS_TEXTURE_3D
+						 : 0
+						 ;
+		g_caps.supported |= BGFX_CONFIG_RENDERER_OPENGL|BGFX_CONFIG_RENDERER_OPENGLES3|s_extension[Extension::OES_vertex_half_float].m_supported
+						 ? BGFX_CAPS_VERTEX_ATTRIB_HALF
+						 : 0
+						 ;
 		g_caps.maxTextureSize = glGet(GL_MAX_TEXTURE_SIZE);
 
 		s_renderCtx->m_vaoSupport = !!BGFX_CONFIG_RENDERER_OPENGLES3