Wireframe not rendered for unindexed mesh

kzhsw · December 19, 2024, 4:03am

Desc:
Enable wireframe on material for unindexed mesh, mesh not rendered.

PG:

Code:

BabylonJS/Babylon.js/blob/1b876009e2673b6208cbd8ed0be3e1e4486a1dcd/packages/dev/core/src/Meshes/mesh.ts#L1856


      
          if (!this._geometry) {

              return this;

          }

          

          const engine = this.getScene().getEngine();

          

          // Wireframe

          let indexToBind;

          if (this._unIndexed) {

              switch (this._getRenderingFillMode(fillMode)) {

                  case Material.WireFrameFillMode:

                      indexToBind = subMesh._getLinesIndexBuffer(<IndicesArray>this.getIndices(), engine);

                      break;

                  default:

                      indexToBind = null;

                      break;

              }

          } else {

              switch (this._getRenderingFillMode(fillMode)) {

                  case Material.PointFillMode:

                      indexToBind = null;

this.getIndices() should return empty array here

Cedric · December 19, 2024, 8:53am

cc @Evgeni_Popov

Evgeni_Popov · December 19, 2024, 9:57am

This PR will fix the problem:

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Wireframe not rendered for unindexed mesh

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