don't split triangles in Mesh.uniformTriangleGroup

Calling Mesh.uniformTriangleGroup for WebGL1 is required for picking to work properly. With color smoothing implemented, we don't have to split triangles in Mesh.uniformTriangleGroup anymore. This should help reduce the exported file size in WebGL1. This change is suggested by @arose

src/mol-repr/structure/visual/gaussian-surface-mesh.ts

@@ -96,7 +96,7 @@ async function createGaussianSurfaceMesh(ctx: VisualContext, unit: Unit, structu
     (surface.meta as GaussianSurfaceMeta) = { resolution };
 
     Mesh.transform(surface, transform);
-    if (ctx.webgl && !ctx.webgl.isWebGL2) Mesh.uniformTriangleGroup(surface);
+    if (ctx.webgl && !ctx.webgl.isWebGL2) Mesh.uniformTriangleGroup(surface, false);
 
     const sphere = Sphere3D.expand(Sphere3D(), unit.boundary.sphere, props.radiusOffset + getUnitExtraRadius(unit));
     surface.setBoundingSphere(sphere);
@@ -157,7 +157,7 @@ async function createStructureGaussianSurfaceMesh(ctx: VisualContext, structure:
     (surface.meta as GaussianSurfaceMeta) = { resolution };
 
     Mesh.transform(surface, transform);
-    if (ctx.webgl && !ctx.webgl.isWebGL2) Mesh.uniformTriangleGroup(surface);
+    if (ctx.webgl && !ctx.webgl.isWebGL2) Mesh.uniformTriangleGroup(surface, false);
 
     const sphere = Sphere3D.expand(Sphere3D(), structure.boundary.sphere, props.radiusOffset + getStructureExtraRadius(structure));
     surface.setBoundingSphere(sphere);

src/mol-repr/structure/visual/molecular-surface-mesh.ts

@@ -48,7 +48,7 @@ async function createMolecularSurfaceMesh(ctx: VisualContext, unit: Unit, struct
     const surface = await computeMarchingCubesMesh(params, mesh).runAsChild(ctx.runtime);
 
     Mesh.transform(surface, transform);
-    if (ctx.webgl && !ctx.webgl.isWebGL2) Mesh.uniformTriangleGroup(surface);
+    if (ctx.webgl && !ctx.webgl.isWebGL2) Mesh.uniformTriangleGroup(surface, false);
 
     const sphere = Sphere3D.expand(Sphere3D(), unit.boundary.sphere, props.probeRadius + getUnitExtraRadius(unit));
     surface.setBoundingSphere(sphere);