fix(model): make default pbr shader clip

src/main.rs

@@ -22,8 +22,10 @@ use std::time::Duration;
 use stereokit::input::Handed;
 use stereokit::lifecycle::DisplayMode;
 use stereokit::lifecycle::{DepthMode, LogFilter};
+use stereokit::material::Material;
 use stereokit::render::SphericalHarmonics;
 use stereokit::render::StereoKitRender;
+use stereokit::shader::Shader;
 use stereokit::texture::Texture;
 use stereokit::time::StereoKitTime;
 use tokio::{runtime::Handle, sync::oneshot};
@@ -93,6 +95,9 @@ fn main() -> Result<()> {
 		.expect("StereoKit failed to initialize");
 	info!("Init StereoKit");
 
+	Material::find(&stereokit, "default/material_pbr")?
+		.set_shader(Shader::from_name(&stereokit, "default/shader_pbr_clip")?);
+
 	// Skytex/light stuff
 	{
 		if let Some((tex, light)) = project_dirs

src/nodes/drawable/model.rs

@@ -194,13 +194,7 @@ impl Model {
 			.sk_model
 			.get_or_try_init(|| -> color_eyre::eyre::Result<SendWrapper<SKModel>> {
 				let pending_model_path = self.pending_model_path.get().ok_or(Error)?;
-				let model = SKModel::from_file(
-					sk,
-					pending_model_path.as_path(),
-					Shader::from_file(sk, "default/shader_pbr_clip")
-						.ok()
-						.as_ref(),
-				)?;
+				let model = SKModel::from_file(sk, pending_model_path.as_path(), None)?;
 
 				Ok(SendWrapper::new(model.clone()))
 			})
@@ -210,7 +204,9 @@ impl Model {
 			{
 				let mut material_replacements = self.pending_material_replacements.lock();
 				for (material_idx, replacement_material) in material_replacements.iter() {
-					sk_model.set_material(sk, *material_idx as i32, replacement_material);
+					if sk_model.get_material(sk, *material_idx as i32).is_some() {
+						sk_model.set_material(sk, *material_idx as i32, replacement_material);
+					}
 				}
 				material_replacements.clear();
 			}