Minor fixes

src/Nazara/Graphics/Resources/Shaders/depth_material.nzsl

@@ -86,8 +86,10 @@ struct VertOut
 [entry(vert)]
 fn main(input: VertIn) -> VertOut
 {
+	let worldPosition = instanceData.worldMatrix * vec4[f32](input.pos, 1.0);
+
 	let output: VertOut;
-	output.position = viewerData.viewProjMatrix * instanceData.worldMatrix * vec4[f32](input.pos, 1.0);
+	output.position = viewerData.viewProjMatrix * worldPosition;
 
 	const if (HasUV)
 		output.uv = input.uv;

src/Nazara/Shader/GlslWriter.cpp

@@ -1160,6 +1160,10 @@ namespace Nz
 				AppendVariableDeclaration(member.type.GetResultingValue(), member.name);
 				Append(";");
 			}
+
+			// Empty structs are not allowed in GLSL
+			if (first)
+				AppendLine("int dummy;");
 		}
 		LeaveScope(false);
 		AppendLine(";");