#if __VERSION__ < 300
    #pragma define CC_SURFACES_VARING_MODIFIER varying
#else
    #pragma define CC_SURFACES_VARING_MODIFIER in
#endif

#include <shading-entries/data-structures/vs-fs>

// FS Input
/*struct SurfacesStandardFragmentInput
{
}
void CCSurfacesGetFragmentInput(out SurfacesStandardFragmentInput fsInput)
{
}
*/

// Use macros instead of structure to avoid structure precision issues
#define FSInput_worldPos v_worldPos
#define FSInput_worldNormal v_normal.xyz // unnormalized
#define FSInput_faceSideSign v_normal.w // physical face side, has no relation to USE_TWO_SIDED
#define FSInput_texcoord v_uv

#if CC_SURFACES_USE_VERTEX_COLOR
  #define FSInput_vertexColor v_color
#else
  #define FSInput_vertexColor vec4(1.0) // for compatible user-surface functions in other render usage
#endif

#if CC_SURFACES_USE_TANGENT_SPACE
  #define FSInput_worldTangent v_tangent.xyz // unnormalized
  #define FSInput_mirrorNormal v_tangent.w
#else
  #define FSInput_worldTangent vec3(1.0, 1.0, 1.0) // normalize zero vector may crash on webgpu, use 1 instead
  #define FSInput_mirrorNormal 1.0
#endif

#if CC_SURFACES_USE_SECOND_UV
  #define FSInput_texcoord1 v_uv1
#else
  #define FSInput_texcoord1 vec2(0.0, 0.0)
#endif

#if CC_USE_LIGHTMAP && !CC_FORWARD_ADD
  #define FSInput_lightMapUV v_luv
#endif

#if CC_RECEIVE_SHADOW
  #define FSInput_shadowBias v_shadowBiasAndProbeId.xy
#endif
#if CC_USE_REFLECTION_PROBE
  #define FSInput_reflectionProbeId v_shadowBiasAndProbeId.z
  #if CC_USE_REFLECTION_PROBE == REFLECTION_PROBE_TYPE_BLEND || CC_USE_REFLECTION_PROBE == REFLECTION_PROBE_TYPE_BLEND_AND_SKYBOX
    #define FSInput_reflectionProbeBlendId v_shadowBiasAndProbeId.w
  #endif
  #if USE_INSTANCING
    #define FSInput_reflectionProbeData v_reflectionProbeData
  #endif
#endif

#if CC_USE_FOG != CC_FOG_NONE && !CC_USE_ACCURATE_FOG
  #define FSInput_fogFactor v_fogFactor
#endif

#if CC_SURFACES_TRANSFER_LOCAL_POS
  #define FSInput_localPos v_localPos
#endif

#if CC_SURFACES_TRANSFER_CLIP_POS
  #define FSInput_clipPos v_clipPos
#endif