fix: suppress spurious shader snippet and auxiliary texture warningsHEADmain

- Add render/scene_query_mode to known placeholders in VerifyIncludes
- Remove warning for duplicate auxiliary texture registration (valid for multiple CNNEffect stacks)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

2 files changed, 6 insertions, 6 deletions

diff --git a/src/gpu/effect.cc b/src/gpu/effect.cc
index e0a9c24..3ee2acd 100644
--- a/src/gpu/effect.cc
+++ b/src/gpu/effect.cc
@@ -457,13 +457,9 @@ void MainSequence::register_auxiliary_texture(const char* name, int width,
                                               int height) {
   const std::string key(name);
 
-  // Check if already exists
+  // Check if already exists (silent, idempotent registration is valid)
   auto it = auxiliary_textures_.find(key);
   if (it != auxiliary_textures_.end()) {
-#if !defined(STRIP_ALL)
-    fprintf(stderr, "Warning: Auxiliary texture '%s' already registered\n",
-            name);
-#endif /* !defined(STRIP_ALL) */
     return;
   }
 
diff --git a/src/gpu/effects/shader_composer.cc b/src/gpu/effects/shader_composer.cc
index fe3ad74..9234b7a 100644
--- a/src/gpu/effects/shader_composer.cc
+++ b/src/gpu/effects/shader_composer.cc
@@ -89,6 +89,9 @@ ShaderComposer::Compose(const std::vector<std::string>& dependencies,
 
 void ShaderComposer::VerifyIncludes() const {
 #if !defined(STRIP_ALL)
+  // Known placeholders that get substituted at composition time
+  std::set<std::string> known_placeholders = {"render/scene_query_mode"};
+
   std::set<std::string> missing;
   for (const auto& [name, code] : snippets_) {
     std::istringstream stream(code);
@@ -99,7 +102,8 @@ void ShaderComposer::VerifyIncludes() const {
         size_t end = line.find('"', start + 1);
         if (start != std::string::npos && end != std::string::npos) {
           std::string included = line.substr(start + 1, end - start - 1);
-          if (snippets_.find(included) == snippets_.end()) {
+          if (snippets_.find(included) == snippets_.end() &&
+              known_placeholders.find(included) == known_placeholders.end()) {
             missing.insert(included);
           }
         }