struct ps_input
{
	float4 pos : SV_POSITION;
	#if VFX_NEEDS_COLOR_INTERPOLATOR
	VFX_OPTIONAL_INTERPOLATION float4 color : COLOR0;
	#endif
	#if USE_SOFT_PARTICLE || USE_ALPHA_TEST || USE_EXPOSURE_WEIGHT || VFX_FEATURE_MOTION_VECTORS_FORWARD
	VFX_OPTIONAL_INTERPOLATION float3 builtInInterpolants : TEXCOORD0;
	#endif
	#if VFX_NEEDS_POSWS_INTERPOLATOR
	float3 posWS : TEXCOORD1;
	#endif

	#if VFX_FEATURE_MOTION_VECTORS_FORWARD
	VFX_DECLARE_MOTION_VECTORS_STORAGE(2,3)
	#endif

	UNITY_VERTEX_OUTPUT_STEREO
    VFX_VERTEX_OUTPUT_INSTANCE_INDEX
};

struct ps_output
{
	float4 color : SV_Target0;
	#if VFX_FEATURE_MOTION_VECTORS_FORWARD
	float4 motionVector : SV_Target1;
	#endif
};

#define VFX_VARYING_PS_INPUTS ps_input
#define VFX_VARYING_POSCS pos
#define VFX_VARYING_COLOR color.rgb
#define VFX_VARYING_ALPHA color.a
#define VFX_VARYING_INVSOFTPARTICLEFADEDISTANCE builtInInterpolants.x
#define VFX_VARYING_ALPHATHRESHOLD builtInInterpolants.y
#if VFX_NEEDS_POSWS_INTERPOLATOR
#define VFX_VARYING_POSWS posWS
#endif
#if USE_EXPOSURE_WEIGHT
#define VFX_VARYING_EXPOSUREWEIGHT builtInInterpolants.z
#endif
#if VFX_FEATURE_MOTION_VECTORS_FORWARD
#define VFX_VARYING_VELOCITY_CPOS VFX_DECLARE_MOTION_VECTORS_VARYING_NONJITTER
#define VFX_VARYING_VELOCITY_CPOS_PREVIOUS VFX_DECLARE_MOTION_VECTORS_VARYING_PREVIOUS
#endif

${VFXPassForwardDefine}
${VFXInclude("Shaders/ParticleLines/Pass.template")}

#pragma fragment frag
ps_output frag(ps_input i)
{
	UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(i);
	ps_output o = (ps_output)0;
	VFXTransformPSInputs(i);

#if VFX_USE_GRAPH_VALUES
    uint instanceActiveIndex = i.VFX_VARYINGS_INSTANCE_ACTIVE_INDEX;
    ${VFXLoadGraphValues}
#endif

	${VFXApplyColor}
	o.color = VFXApplyPreExposure(o.color, i);
	o.color = VFXApplyAO(o.color,i);
	o.color = VFXApplyFog(o.color,i);
	VFXClipFragmentColor(o.color.a,i);
	o.color.a = saturate(o.color.a);
	o.color = VFXTransformFinalColor(o.color,i);

	#if VFX_FEATURE_MOTION_VECTORS_FORWARD
	${VFXComputeOutputMotionVector}
	o.motionVector = encodedMotionVector;
	o.motionVector.a = o.color.a < i.VFX_VARYING_ALPHATHRESHOLD ? 0.0f : 1.0f; //Independant clipping for motion vector pass
	#endif

	return o;
}