Fix various crashes relating to low roughness_layers

servers/rendering/renderer_rd/environment/sky.cpp

@@ -574,7 +574,7 @@ RID SkyRD::Sky::get_textures(SkyTextureSetVersion p_version, RID p_default_shade
 		u.uniform_type = RD::UNIFORM_TYPE_TEXTURE;
 		u.binding = 1; // half res
 		if (p_version >= SKY_TEXTURE_SET_CUBEMAP) {
-			if (reflection.layers[0].views[1].is_valid() && p_version != SKY_TEXTURE_SET_CUBEMAP_HALF_RES) {
+			if (reflection.layers.size() && reflection.layers[0].views.size() >= 2 && reflection.layers[0].views[1].is_valid() && p_version != SKY_TEXTURE_SET_CUBEMAP_HALF_RES) {
 				u.append_id(reflection.layers[0].views[1]);
 			} else {
 				u.append_id(texture_storage->texture_rd_get_default(RendererRD::TextureStorage::DEFAULT_RD_TEXTURE_CUBEMAP_BLACK));
@@ -594,7 +594,7 @@ RID SkyRD::Sky::get_textures(SkyTextureSetVersion p_version, RID p_default_shade
 		u.uniform_type = RD::UNIFORM_TYPE_TEXTURE;
 		u.binding = 2; // quarter res
 		if (p_version >= SKY_TEXTURE_SET_CUBEMAP) {
-			if (reflection.layers[0].views[2].is_valid() && p_version != SKY_TEXTURE_SET_CUBEMAP_QUARTER_RES) {
+			if (reflection.layers.size() && reflection.layers[0].views.size() >= 3 && reflection.layers[0].views[2].is_valid() && p_version != SKY_TEXTURE_SET_CUBEMAP_QUARTER_RES) {
 				u.append_id(reflection.layers[0].views[2]);
 			} else {
 				u.append_id(texture_storage->texture_rd_get_default(RendererRD::TextureStorage::DEFAULT_RD_TEXTURE_CUBEMAP_BLACK));
@@ -1323,7 +1323,7 @@ void SkyRD::update_radiance_buffers(Ref<RenderSceneBuffersRD> p_render_buffers,
 
 		// Note, we ignore environment_get_sky_orientation here as this is applied when we do our lookup in our scene shader.
 
-		if (shader_data->uses_quarter_res) {
+		if (shader_data->uses_quarter_res && roughness_layers >= 3) {
 			RD::get_singleton()->draw_command_begin_label("Render Sky to Quarter Res Cubemap");
 			PipelineCacheRD *pipeline = &shader_data->pipelines[SKY_VERSION_CUBEMAP_QUARTER_RES];
 
@@ -1340,9 +1340,11 @@ void SkyRD::update_radiance_buffers(Ref<RenderSceneBuffersRD> p_render_buffers,
 				RD::get_singleton()->draw_list_end();
 			}
 			RD::get_singleton()->draw_command_end_label();
+		} else if (shader_data->uses_quarter_res && roughness_layers < 3) {
+			ERR_PRINT_ED("Cannot use quarter res buffer in sky shader when roughness layers is less than 3. Please increase rendering/reflections/sky_reflections/roughness_layers.");
 		}
 
-		if (shader_data->uses_half_res) {
+		if (shader_data->uses_half_res && roughness_layers >= 2) {
 			RD::get_singleton()->draw_command_begin_label("Render Sky to Half Res Cubemap");
 			PipelineCacheRD *pipeline = &shader_data->pipelines[SKY_VERSION_CUBEMAP_HALF_RES];
 
@@ -1359,6 +1361,8 @@ void SkyRD::update_radiance_buffers(Ref<RenderSceneBuffersRD> p_render_buffers,
 				RD::get_singleton()->draw_list_end();
 			}
 			RD::get_singleton()->draw_command_end_label();
+		} else if (shader_data->uses_half_res && roughness_layers < 2) {
+			ERR_PRINT_ED("Cannot use half res buffer in sky shader when roughness layers is less than 2. Please increase rendering/reflections/sky_reflections/roughness_layers.");
 		}
 
 		RD::DrawListID cubemap_draw_list;

servers/rendering/renderer_rd/storage_rd/light_storage.cpp

@@ -1552,6 +1552,11 @@ bool LightStorage::reflection_probe_instance_postprocess_step(RID p_instance) {
 	if (rpi->processing_side == 6) {
 		rpi->processing_side = 0;
 		rpi->processing_layer++;
+		if (rpi->processing_layer == atlas->reflections[rpi->atlas_index].data.layers[0].mipmaps.size()) {
+			rpi->rendering = false;
+			rpi->processing_layer = 1;
+			return true;
+		}
 	}
 
 	return false;