Fix particle sizes, and add tools for comparing renderers

Particles: Direct3D 9's size limit evidently isn't the documented 64 pixels; unclamped (up to 2048) they match the client's renderer. A compare view shows the left half's scene over the right half, both renderers side by side; %TEMP%\t5de-renderer-view.txt switches views and %TEMP%\t5de-renderer-shaders\fixed_function.hlsl replaces the shaders while the client runs. The renderer process runs from a copy, so the program can be replaced meanwhile. The adapter recognizes only the textures and buffers it made (others reach the client renderer unchanged) and logs the others and render targets.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

adapter/engine.cpp

@@ -73,6 +73,12 @@ void Engine::setViewSpace(const imvu::Transform& view)
 void Engine::setTextures(imvu::PiRenderTexture* texture0, imvu::PiRenderTexture* texture1)
 {
     inner_->setTextures(inner(texture0), inner(texture1));
+    for (imvu::PiRenderTexture* texture : {texture0, texture1}) {
+        if (texture != nullptr && id(texture) == 0 && foreignLogged_ < 20) {
+            ++foreignLogged_;
+            log::info("engine: frame {}: a texture the client renderer made ({})", frames_, static_cast<void*>(texture));
+        }
+    }
     recorder_->add(Op::SetTextures, protocol::SetTextures{id(texture0), id(texture1)});
 }
 
@@ -219,17 +225,23 @@ imvu::PiInternalVertexBuffer* Engine::newDynamicVertexBuffer(std::uint32_t eleme
 
 imvu::SharedPtr<imvu::PiPixmapRenderTarget> Engine::newPixmapRenderTarget(imvu::Vec2i size)
 {
+    log::info("engine: frame {}: a {}x{} pixmap render target", frames_, size.x, size.y);
     return inner_->newPixmapRenderTarget(size);
 }
 
 imvu::SharedPtr<imvu::PiTextureRenderTarget> Engine::newTextureRenderTarget(imvu::Vec2i size)
 {
+    log::info("engine: frame {}: a {}x{} texture render target", frames_, size.x, size.y);
     return inner_->newTextureRenderTarget(size);
 }
 
 void Engine::beginRendering(imvu::PiRenderTarget* target)
 {
     inner_->beginRendering(target);
+    if (target != nullptr && foreignLogged_ < 20) {
+        ++foreignLogged_;
+        log::info("engine: frame {}: drawing into a render target ({})", frames_, static_cast<void*>(target));
+    }
     recorder_->add(Op::BeginFrame, protocol::BeginFrame{target != nullptr});
 }