145 lines
3.7 KiB
Plaintext
145 lines
3.7 KiB
Plaintext
#if !(defined(VFX_VARYING_PS_INPUTS) && defined(VFX_VARYING_POSCS))
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#error VFX_VARYING_PS_INPUTS, VFX_VARYING_POSCS and VFX_VARYING_UV must be defined.
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#endif
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${VFXPerPassInclude}
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${VFXGeneratedBlockFunction}
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struct vs_input
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{
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float3 pos : POSITION;
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float2 uv : TEXCOORD0;
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#if VFX_SHADERGRAPH_HAS_UV1
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float4 uv1 : TEXCOORD1;
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#endif
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#if VFX_SHADERGRAPH_HAS_UV2
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float4 uv2 : TEXCOORD2;
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#endif
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#if VFX_SHADERGRAPH_HAS_UV3
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float4 uv3 : TEXCOORD3;
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#endif
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#if VFX_SHADERGRAPH_HAS_COLOR
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float4 vertexColor : COLOR;
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#endif
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float3 normal : NORMAL;
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#if defined(VFX_VARYING_TANGENT) || SHADERGRAPH_HAS_NORMAL
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float4 tangent : TANGENT;
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#endif
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VFX_DECLARE_INSTANCE_ID
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};
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#pragma vertex vert
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VFX_VARYING_PS_INPUTS vert(vs_input i)
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{
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VFX_VARYING_PS_INPUTS o = (VFX_VARYING_PS_INPUTS)0;
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UNITY_SETUP_INSTANCE_ID(i);
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UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
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uint index = VFX_GET_INSTANCE_ID(i);
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${VFXInitInstancing}
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${VFXLoadGraphValues}
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${VFXLoadContextData}
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uint systemSeed = contextData.systemSeed;
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uint nbMax = contextData.maxParticleCount;
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${VFXLoadAttributesOrCull}
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${VFXProcessBlocks}
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if (!attributes.alive)
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return o;
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#ifdef VFX_VARYING_UV
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o.VFX_VARYING_UV.xy = i.uv;
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#endif
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#if VFX_SHADERGRAPH_HAS_UV1
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o.uv1 = i.uv1;
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#endif
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#if VFX_SHADERGRAPH_HAS_UV2
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o.uv2 = i.uv2;
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#endif
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#if VFX_SHADERGRAPH_HAS_UV3
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o.uv3 = i.uv3;
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#endif
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#if VFX_SHADERGRAPH_HAS_COLOR
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o.vertexColor = i.vertexColor;
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#endif
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${VFXLoadSize}
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float3 inputVertexPosition = i.pos;
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float4x4 elementToVFX = GetElementToVFXMatrix(
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attributes.axisX,
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attributes.axisY,
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attributes.axisZ,
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float3(attributes.angleX,attributes.angleY,attributes.angleZ),
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float3(attributes.pivotX,attributes.pivotY,attributes.pivotZ),
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size3,
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attributes.position);
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float3 vPos = mul(elementToVFX,float4(inputVertexPosition,1.0f)).xyz;
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float4 csPos = TransformPositionVFXToClip(vPos);
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o.VFX_VARYING_POSCS = csPos;
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// TODO This is needed only if in local space (to handle non uniform scale) or if scale attributes are stored/written (no way to know atm)
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float3x3 elementToVFX_N = GetElementToVFXMatrixNormal(
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attributes.axisX,
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attributes.axisY,
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attributes.axisZ,
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float3(attributes.angleX,attributes.angleY,attributes.angleZ),
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size3);
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float3 normalWS = normalize(TransformNormalVFXToWorld(mul(elementToVFX_N, i.normal)));
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#ifdef VFX_VARYING_NORMAL
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float normalFlip = (size3.x * size3.y * size3.z) < 0 ? -1 : 1;
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o.VFX_VARYING_NORMAL = normalFlip * normalWS;
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#endif
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#ifdef VFX_VARYING_TANGENT
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o.VFX_VARYING_TANGENT = float4(normalize(TransformDirectionVFXToWorld(mul((float3x3)elementToVFX,i.tangent.xyz))),i.tangent.w);
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#endif
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${VFXVertexComputeCurrentAndPreviousClipPos}
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${VFXVertexCommonProcess}
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${VFXVertexSetFlipbooksInterpolants}
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${VFXVertexAdditionalProcess}
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${VFXAdditionalInterpolantsGeneration}
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return o;
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}
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${VFXBegin:VFXComputeNormalWS}
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#ifdef VFX_VARYING_NORMAL
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#if USE_DOUBLE_SIDED
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const float faceMul = frontFace ? 1.0f : -1.0f;
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#else
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const float faceMul = 1.0f;
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#endif
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float3 normalWS = normalize(i.VFX_VARYING_NORMAL * faceMul);
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const VFXUVData uvData = GetUVData(i);
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#ifdef VFX_VARYING_TANGENT
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float3 tangentWS = normalize(i.VFX_VARYING_TANGENT.xyz);
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float3 bitangentWS = cross(normalWS,tangentWS) * (i.VFX_VARYING_TANGENT.w * faceMul);
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float3x3 tbn = float3x3(tangentWS,bitangentWS,normalWS);
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#if USE_NORMAL_MAP
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float3 n = SampleNormalMap(VFX_SAMPLER(normalMap),uvData);
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float normalScale = 1.0f;
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#ifdef VFX_VARYING_NORMALSCALE
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normalScale = i.VFX_VARYING_NORMALSCALE;
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#endif
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normalWS = normalize(lerp(normalWS,mul(n,tbn),normalScale));
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#endif
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#endif
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#endif
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${VFXEnd}
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${VFXBegin:VFXVertexAdditionalProcess}${VFXEnd}
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