remove render data for destroyed cameras

fyrox-impl/src/renderer/mod.rs

@@ -110,6 +110,7 @@ use crate::{
 };
 use fxhash::FxHashMap;
 use fyrox_core::err;
+use fyrox_graph::BaseSceneGraph;
 use fyrox_graphics::{
     sampler::{GpuSampler, GpuSamplerDescriptor},
     sampler::{MagnificationFilter, MinificationFilter, WrapMode},
@@ -1497,6 +1498,10 @@ impl Renderer {
             )?;
         }
 
+        scene_render_data
+            .camera_data
+            .retain(|h, _| graph.is_valid_handle(*h));
+
         for (camera_handle, camera) in graph.pair_iter().filter_map(|(handle, node)| {
             if node.is_globally_enabled() {
                 if let Some(camera) = node.cast::<Camera>() {