#if !(defined(VFX_VARYING_PS_INPUTS) && defined(VFX_VARYING_POSCS))
#error VFX_VARYING_PS_INPUTS and VFX_VARYING_POSCS must be defined.
#endif

${VFXPerPassInclude}
${VFXGeneratedBlockFunction}

struct vs_input
{
	VFX_DECLARE_INSTANCE_ID
};

#if HAS_STRIPS
${VFXDeclareGetStripTangent}
#endif

#pragma vertex vert

VFX_VARYING_PS_INPUTS vert(uint id : SV_VertexID, vs_input i)
{
	VFX_VARYING_PS_INPUTS o = (VFX_VARYING_PS_INPUTS)0;

	UNITY_SETUP_INSTANCE_ID(i);
	UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);

	uint index = id >> 1;

	${VFXInitInstancing}

	${VFXLoadGraphValues}

	${VFXLoadContextData}
	uint systemSeed = contextData.systemSeed;
	uint nbMax = contextData.maxParticleCount;

	${VFXLoadAttributesOrCull}
	${VFXProcessBlocks}

	#if HAS_STRIPS
	float3 vPos = attributes.position;
	#else

	if (!attributes.alive)
		return o;

	#if TARGET_FROM_ATTRIBUTES
	${VFXLoadSize}
	float4x4 elementToVFX = GetElementToVFXMatrix(
		attributes.axisX,
		attributes.axisY,
		attributes.axisZ,
		float3(attributes.angleX,attributes.angleY,attributes.angleZ),
		float3(attributes.pivotX,attributes.pivotY,attributes.pivotZ),
		size3,
		attributes.position);

	attributes.position = mul(elementToVFX,float4(0,0,0,1)).xyz;

	${VFXLoadParameter:{targetOffset}}
	attributes.targetPosition = mul(elementToVFX,float4(targetOffset,1)).xyz;
	#endif

	// If ever used we need the position in vfx space (we dont take into account the pixel offset)
	float3 vPos = id & 1 ? attributes.targetPosition : attributes.position;
	#endif

	o.VFX_VARYING_POSCS = TransformPositionVFXToClip(vPos);

	${VFXVertexComputeCurrentAndPreviousClipPos}
	${VFXVertexCommonProcess}
	${VFXVertexAdditionalProcess}

	return o;
}