diff --git a/scripts/cube_logic.lua b/scripts/cube_logic.lua
index 845b769..29f5a90 100644
--- a/scripts/cube_logic.lua
+++ b/scripts/cube_logic.lua
@@ -1046,6 +1046,44 @@ local function resolve_boolean(value, fallback)
     return fallback
 end
 
+local function build_compat_render_graph(enable_tonemap, exposure, gamma)
+    local resources = {}
+    local passes = {}
+
+    if enable_tonemap then
+        resources.scene_hdr = {type = "color", format = "rgba16f", size = "swapchain"}
+        table.insert(passes, {
+            name = "scene",
+            kind = "forward_plus",
+            output = "scene_hdr",
+        })
+        table.insert(passes, {
+            name = "tonemap",
+            kind = "fullscreen",
+            shader = "tonemap_fallback",
+            input = "scene_hdr",
+            output = "swapchain",
+            settings = {
+                exposure = exposure,
+                gamma = gamma,
+                curve = "aces",
+                highlight_rolloff = 0.85,
+            },
+        })
+    else
+        table.insert(passes, {
+            name = "scene",
+            kind = "forward_plus",
+            output = "swapchain",
+        })
+    end
+
+    return {
+        resources = resources,
+        passes = passes,
+    }
+end
+
 function get_render_graph()
     local atmospherics = {}
     local rendering = {}
@@ -1070,11 +1108,17 @@ function get_render_graph()
     local enable_vxgi = resolve_boolean(rendering.enable_vxgi, false)
     local enable_depth_of_field = resolve_boolean(rendering.enable_depth_of_field, true)
     local enable_motion_blur = resolve_boolean(rendering.enable_motion_blur, true)
+    local render_graph_profile = resolve_string(rendering.render_graph_profile, "compat")
     local pipeline_mode = resolve_string(rendering.pipeline, "deferred")
     local use_forward_plus = pipeline_mode == "forward_plus"
         or pipeline_mode == "forward+"
         or pipeline_mode == "forward"
 
+    if render_graph_profile ~= "full" then
+        log_debug("Render graph profile '%s' using compatibility graph", render_graph_profile)
+        return build_compat_render_graph(enable_tonemap, exposure, gamma)
+    end
+
     local passes = {
         {
             name = "shadow_csm",
diff --git a/src/services/impl/render_command_service.cpp b/src/services/impl/render_command_service.cpp
index adb8c7b..c492e1d 100644
--- a/src/services/impl/render_command_service.cpp
+++ b/src/services/impl/render_command_service.cpp
@@ -360,6 +360,14 @@ void RenderCommandService::RecordRenderGraph(uint32_t imageIndex,
         }
 
         std::string outputName = ResolvePassOutput(pass);
+        if (logger_) {
+            logger_->Trace("RenderCommandService", "RecordRenderGraph",
+                           "pass=" + pass.name +
+                           ", kind=" + pass.kind +
+                           ", scenePass=" + std::string(scenePass ? "true" : "false") +
+                           ", shaderKey=" + (shaderKey.empty() ? "<none>" : shaderKey) +
+                           ", output=" + (outputName.empty() ? "<none>" : outputName));
+        }
         if (outputName.empty()) {
             if (logger_) {
                 logger_->Warn("RenderCommandService: Render graph pass '" + pass.name + "' has no output");
@@ -522,6 +530,11 @@ void RenderCommandService::RecordRenderGraph(uint32_t imageIndex,
             }
         } else {
             std::string inputName = ResolvePassInput(pass);
+            if (logger_) {
+                logger_->Trace("RenderCommandService", "RecordRenderGraph",
+                               "pass=" + pass.name +
+                               ", input=" + (inputName.empty() ? "<none>" : inputName));
+            }
             if (inputName == "swapchain" && outputSwapchain) {
                 if (logger_) {
                     logger_->Trace("RenderCommandService", "RecordRenderGraph",
@@ -1270,7 +1283,7 @@ void main() {
 
         ShaderPaths paths{};
         paths.vertexSource = kFullscreenVertex;
-        if (shaderKey == "tonemap") {
+        if (shaderKey == "tonemap" || shaderKey == "tonemap_fallback") {
             paths.fragmentSource = kTonemapFragment;
         } else {
             paths.fragmentSource = kPostProcessFragment;