Method compile_material_instanced

native/shared/src/renderer/mod.rs:13186–13202

EN-001 — compile a material that opts into the standard per-instance vertex layout (Opaque profile + Opaque bucket + wants_instancing). Pair with `create_instance_buffer` + `submit_material_draw_instanced`. The game shader's VertexInput must declare the instance attribute locations (see `material_abi.wgsl` for the layout).

(
        &mut self, wgsl_source: &str,
    )

    /// The game shader's VertexInput must declare the instance attribute
    /// locations (see `material_abi.wgsl` for the layout).
    pub fn compile_material_instanced(
        &mut self, wgsl_source: &str,
    ) -> Result<material_system::MaterialHandle, material_pipeline::MaterialCompileError> {
        self.material_system.compile(
            &self.device,
            wgsl_source,
            material_pipeline::FragmentProfile::Opaque,
            material_pipeline::Bucket::Opaque,
            false,
            true, // wants_instancing
            formats::HDR_FORMAT,
            formats::MATERIAL_FORMAT,
            formats::VELOCITY_FORMAT,
            wgpu::TextureFormat::Rgba8Unorm,
            formats::DEPTH_FORMAT,
        )
    }

    /// EN-001 — upload a CPU-side per-instance buffer to GPU memory.
    /// `raw` is laid out as 9 floats per instance (pos.xyz, rot_y,