[feat]: work on render path exporting

1 files changed, 28 insertions, 0 deletions

diff --git a/src/rendering/export_config.h b/src/rendering/export_config.h
new file mode 100644
index 0000000..e490db6
--- /dev/null
+++ b/src/rendering/export_config.h
@@ -0,0 +1,28 @@
+#pragma once
+
+#include <string>
+
+namespace Donut
+{
+    // How each channel is written:
+    //   Png = display image (tone-mapped colour / false-coloured observable).
+    //   Pfm = raw float image (actual physical values; RGB, Portable Float Map).
+    //   Csv = raw scalar grid (the observable's value per pixel, one row per line).
+    enum class ExportFormat { Png, Pfm, Csv };
+
+    // What the Export workspace asks the RenderPath to write to disk: which
+    // observable channels to render, at what resolution, in what format, and where.
+    // Each enabled channel becomes one file.
+    struct ExportConfig
+    {
+        bool color       = true;    // colour image (tone-mapped, or linear HDR when raw)
+        bool redshift    = false;   // redshift factor g (disk only)
+        bool temperature = false;   // emission temperature in K (disk only)
+        bool impact      = false;   // impact parameter in r_s (whole frame)
+
+        int  width  = 1920;
+        int  height = 1080;
+        ExportFormat format = ExportFormat::Png;
+        std::string  directory = "exports";
+    };
+}