Add the ParticlePositionWorld block

nodeEditor/src/blockTools.ts

@@ -491,6 +491,11 @@ export class BlockTools {
                 u.setAsAttribute("particle_texturemask");
                 return u;
             }
+            case "ParticlePositionWorldBlock": {
+                let pos = new InputBlock("PositionWorld");
+                pos.setAsAttribute("particle_positionw");
+                return pos;
+            }
             case "ParticleRampGradientBlock":
                 return new ParticleRampGradientBlock("ParticleRampGradient");
             case "ParticleBlendMultiplyBlock":

nodeEditor/src/components/nodeList/nodeListComponent.tsx

@@ -140,6 +140,7 @@ export class NodeListComponent extends React.Component<INodeListComponentProps,
         "ParticleTextureMaskBlock": "The particle texture mask",
         "ParticleRampGradientBlock": "The particle ramp gradient block",
         "ParticleBlendMultiplyBlock": "The particle blend multiply block",
+        "ParticlePositionWorldBlock": "The world position of the particle",
     };
 
     constructor(props: INodeListComponentProps) {
@@ -176,7 +177,7 @@ export class NodeListComponent extends React.Component<INodeListComponentProps,
             Mesh: ["InstancesBlock", "PositionBlock", "UVBlock", "ColorBlock", "NormalBlock", "PerturbNormalBlock", "NormalBlendBlock" , "TangentBlock", "MatrixIndicesBlock", "MatrixWeightsBlock", "WorldPositionBlock", "WorldNormalBlock", "WorldTangentBlock", "FrontFacingBlock"],
             Noises: ["RandomNumberBlock", "SimplexPerlin3DBlock", "WorleyNoise3DBlock"],
             Output_Nodes: ["VertexOutputBlock", "FragmentOutputBlock", "DiscardBlock"],
-            Particle: ["ParticleBlendMultiplyBlock", "ParticleColorBlock", "ParticleRampGradientBlock", "ParticleTextureBlock", "ParticleTextureMaskBlock", "ParticleUVBlock"],
+            Particle: ["ParticleBlendMultiplyBlock", "ParticleColorBlock", "ParticlePositionWorldBlock", "ParticleRampGradientBlock", "ParticleTextureBlock", "ParticleTextureMaskBlock", "ParticleUVBlock"],
             PBR: ["PBRMetallicRoughnessBlock", "AmbientOcclusionBlock", "AnisotropyBlock", "ClearCoatBlock", "ReflectionBlock", "ReflectivityBlock", "RefractionBlock", "SheenBlock", "SubSurfaceBlock"],
             PostProcess: ["Position2DBlock", "CurrentScreenBlock"],
             Range: ["ClampBlock", "RemapBlock", "NormalizeBlock"],

nodeEditor/src/diagram/display/inputDisplayManager.ts

@@ -14,6 +14,7 @@ const inputNameToAttributeValue: { [name: string] : string } = {
     "particle_uv" : "uv",
     "particle_color" : "color",
     "particle_texturemask": "textureMask",
+    "particle_positionw" : "positionW",
 };
 
 const inputNameToAttributeName: { [name: string] : string } = {
@@ -21,6 +22,7 @@ const inputNameToAttributeName: { [name: string] : string } = {
     "particle_uv" : "particle",
     "particle_color" : "particle",
     "particle_texturemask": "particle",
+    "particle_positionw": "particle",
 };
 
 export class InputDisplayManager implements IDisplayManager {

src/Materials/Node/Blocks/Input/inputBlock.ts

@@ -20,12 +20,14 @@ const remapAttributeName: { [name: string]: string }  = {
     "particle_uv": "vUV",
     "particle_color": "vColor",
     "particle_texturemask": "textureMask",
+    "particle_positionw": "vPositionW",
 };
 
 const attributeInFragmentOnly: { [name: string]: boolean }  = {
     "particle_uv": true,
     "particle_color": true,
     "particle_texturemask": true,
+    "particle_positionw": true,
 };
 
 const attributeAsUniform: { [name: string]: boolean }  = {
@@ -108,6 +110,7 @@ export class InputBlock extends NodeMaterialBlock {
                     case "position":
                     case "normal":
                     case "tangent":
+                    case "particle_positionw":
                         this._type = NodeMaterialBlockConnectionPointTypes.Vector3;
                         return this._type;
                     case "uv":