Rendering

Source: docs/executable/rendering.md
SHA-256: d6d929dc…abedeac6

Contents

Focus and blur · Background loading leads · Leads

Starting points for tracing how the game produces its image, researched for R41 (../plan/R41-rendering-lab.md). This is a bounded static investigation, not a recovered battle rendering pipeline.


Based on	Unpacked executable `local/exe/Tactics Ogre Reborn.exe.unpacked.exe`, SHA-256 `7b0230a11498f40396c9048345e7cfe0ef442cb7ca8faffc6f197920d2669599`; shader package; background sample.
Checked	2026-10-15
Method	Ghidra 12.1.4 through rea, `batch_decompile` at the addresses below; inspection of the saved Ghidra decompilations in `local/exe/decomp/`. No runtime capture or visual comparison.

Focus and blur

The renderer survey locates BladeGraphicsManager. The shader package's layout and inventory remain in ARC.

Finding	Confidence	Source
Startup creates a `FilterDrawable` using the name `psp_dof`.	likely	`0x140163d10`; saved Ghidra analysis resolves the name pointer `0x140cac7b0`.
`0x14016ce70` searches a filter's parameters for `FocusPosY`, copies the supplied values into its parameter storage, and queues a batch through `0x14018c7b0` with two input handles.	likely	Fresh rea decompilation of `0x14016ce70`. The supplied values' units and meaning are not established.
`0x14016d000` similarly writes `vBlurSize`, then queues a batch through `0x14018c740`.	likely	Fresh rea decompilation of `0x14016d000`.
`0x140166720` constructs pairs of buffers named `BlurHalf`, `BlurQuater` and `BlurOneEight`, with dimensions divided by 2, 4 and 8, respectively. The spellings are the game's.	likely	Fresh rea decompilation of `0x140166720`; positive input dimensions, integer division.
`0x14016c580` takes two branches that queue `0x14016c8c0` twice, with direction arguments 0 and 1, then calls `0x14016ce70`.	likely	Fresh rea decompilation of `0x14016c580`. This is a candidate blur/composite sequence; it does not establish when a battle uses it.

The parameter name FocusPosY does not establish whether focus depends on screen height, world height, camera-space depth or another input. A conventional depth-based effect from another renderer is therefore only an approximation until the shader and its inputs are traced.

Local retained rea records: local/scratch/R41-rendering-rea-20261015.json (ev_42655017d8b968bfc9100eb01cf98aaba1fc9f36e4216b9a32bbc35fa07a057f) and local/scratch/R41-rendering-followup-rea-20261015.json (ev_137f83ed2e1a067851e7f2bca20d54e27cff95cf238efd9c57883ae5965ca34b). These contain decompiled game code and stay local.

Background loading leads

likely: the saved Ghidra analysis of 0x1402dd2f0 selects a path through 0x1402e0930 and bg_file_data, opens and unwraps the file, then calls 0x1402ddda0. A fresh rea decompilation of 0x1402ddda0 shows it taking the first pack entry, checking its u16 at +0x0C is zero, and passing it to 0x14037f4f0 and 0x140382bc0. The resource header's existing observations are in ashg; this does not establish that the background payload is an ashg sprite pack or a world-map BMAR model.

likely: 0x1402ddda0 also finds bg_common.dat entry ID 0xCC, selects a 0xC0-byte row using the background-file row index, and passes settings to graphics virtual calls at vftable offsets +0x2C8 and +0x2D0. This is a lead for scene-specific rendering settings; the fields and the calls' effects remain unresolved. Source: fresh rea decompilation and saved local/exe/decomp/0x1402da390.c.

Leads

Disassemble and reflect psp_dof and its vertex shader; identify texture inputs, constant-buffer fields, interpolation and focus formula. Follow the filter object from startup to the parameter updater.
Trace callers of 0x14016c580 to establish when battles invoke the sequence and where focus values originate; compare the queued batches with a captured frame.
Recover the selected background's geometry, materials and grid relationship from the readers above. 0x14037f4f0, 0x14037efc0, 0x14037efe0 and 0x14037eb90 are starting readers from the saved Ghidra analysis, not a decoded geometry contract.
Capture actual pass order, render-target formats, texture/sampler bindings, blend/depth state, camera matrices and output colour conversions. Renderer code and embedded shader names alone do not show which features a particular battle uses.