CNA-VGAP-030: Model drawing on VULKAN, SOFTWARE and the Direct3D renderers is checked in CI only at the stride draw boundary; the shared Model programs and the whole-corpus L7 rung run in CI for OPENGLES3 only

CNA snapshot 009d40f5  ·  Known Issues › Verification gaps  ·  source links pinned to 009d40f5

The EasyGL Model draw, hierarchy, two-mesh, skinned-playback and .cnj reader programs are reused verbatim as CTests on SOFTWARE, VULKAN, SDL_GPU, OPENGL4 and the DirectX parity set, but no workflow runs those registrations; the whole-corpus L7 image campaigns for VULKAN, SOFTWARE and DIRECTX11 are committed reports from one earlier commit, not CI jobs.

Identifier

CNA-VGAP-030

Category

Verification gap

Subsystem

Testing & evidence

Status

Open

Verified against

CNA 009d40f5 (009d40f5dd085c4e674d3479675fac84b12b3e0a)

Evidence basis

Source-verified: read at TARGET, not executed

Tests touching this area

Yes: see Current tests

Affected contract

ModelMesh::Draw / Model::Draw on each 3D renderer; the glTF L7 image comparison

Expected behaviour

A renderer that draws Model graphs should have repeatable evidence that it does so correctly, ideally in CI.

Actual behaviour at TARGET

The easygl_model_* sources are compiled unchanged by CMakeLists.txt (Software_ModelDraw_RedQuad and Software_Model_*), CMakeLists.txt (Vulkan_Model_*), CMakeLists.txt (SdlGpu_EasyGLOracle_model_*), EasyGLParityCorpus.cmake and DirectXParityTests.cmake; HEADLESS has a Model::Draw check in headless_effects_test.cpp and SDL_RENDERER has the refusal test sdlrenderer_model_draw_throws_test.cpp. No workflow runs any of these non-EasyGL registrations: platform-ci.yml builds SOFTWARE and VULKAN with examples but filters ctest to platform tests, and gltf-renderer-stride-ci.yml builds CnaTests only. What CI does run on VULKAN, SOFTWARE and OPENGLES3 is RendererStrideConformance (a real Model::Draw plus Present per glTF stride that passes on no throw or a named refusal, with no pixel check) and the L0-L6 ladder; the l7-corpus job runs the whole-corpus image rung for OPENGLES3 only. The VULKAN, SOFTWARE and DIRECTX11 (under DXVK) whole-corpus results are the committed reports gltf-l7-vulkan-corpus-report.json, gltf-l7-software-corpus-report.json and gltf-l7-directx11-report.json, captured on 2026-08-18 at CNA commit b6c180fd.

Source locations

• .github/workflows/gltf-renderer-stride-ci.yml — conformance matrix and the OPENGLES3-only l7-corpus job
• docs/gltf-l7-vulkan-corpus-report.json — capturedOn 2026-08-18, cnaCommit b6c180fd
• docs/gltf-l7-software-corpus-report.json — same capture
• docs/gltf-l7-directx11-report.json — same capture, DIRECTX11 through DXVK
• modules/renderers/easygl/examples/easygl_model_draw_test.cpp — one of the EasyGL-only Model programs

Evidence

Checked by listing the renderer example directories, reading the workflow and the report headers at 009d40f5; not executed. The reports are CNA's own records for their commit, not for 009d40f5.

Independent re-verification: Checked by reading each renderer's CMake registrations of the shared Model programs, every workflow's ctest selection and the report headers at 009d40f5; not executed. The reports are CNA's own records for their commit, not for 009d40f5. The regression test should be a CI job that runs the Vulkan_Model_* and Software_Model_* CTests and reruns the VULKAN (lavapipe) and SOFTWARE L7 rungs against their committed goldens.

Focused reproduction

No focused reproduction is known. Nothing has been invented here; the evidence above is what exists.

Current tests

L0–L6 oracles and the stride test run per renderer in CI; the EasyGL Model programs run where EasyGL is built.

Regression test

A CI job that reruns the VULKAN (lavapipe) and SOFTWARE L7 rungs against their committed goldens; a small renderer-local Model hierarchy program shared by the 3D renderers.

Blast radius

Evidence only: regressions in Model drawing on VULKAN, SOFTWARE and the Direct3D renderers would not be caught by CI image comparison.

Workaround

No workaround is known.