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c5cb90ddb7
Fixed potential render scene time precision issues.
The timestamp was simply converted from GetTimeAtCurrentTick to a float. Since this value is backed by QueryPerformanceCounter which is 0 at boot, you could see broken animations on the GPU when your system has been on for a long time. So I simplified the RPI's time API (removed unused code), and subtracted the application start time each frame before converting the time value to a float.
Also moved FindShaderInputConstantIndex("m_time") to be called only once, instead of every frame.
Testing:
Originally: I had a local material shader that did vertex animation and it wasn't working at all before, and now it works.
More recently, I made local changes to StandardPBR to add a simple sin wave animation. I also modified GetTimeNowMicroSecond() to artificially add 30 days to the clock. This showed choppy animation before my changes, and smooth animation after.
AtomSampleViewer passed dx12 and vulkan (other than pre-existing issues)
Signed-off-by: santorac <55155825+santorac@users.noreply.github.com>
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4 years ago | |
|---|---|---|
| .. | ||
| External/MaskedOcclusionCulling | 5 years ago | |
| Include/Atom | 4 years ago | |
| Source | 4 years ago | |
| Tests | 4 years ago | |
| Tests.Builders | 4 years ago | |
| Tests.Editor | 4 years ago | |
| CMakeLists.txt | 4 years ago | |
| atom_rpi_builders_files.cmake | 4 years ago | |
| atom_rpi_builders_shared_files.cmake | 4 years ago | |
| atom_rpi_builders_stub_files.cmake | 4 years ago | |
| atom_rpi_builders_tests_files.cmake | 4 years ago | |
| atom_rpi_edit_files.cmake | 4 years ago | |
| atom_rpi_editor_files.cmake | 4 years ago | |
| atom_rpi_editor_tests_files.cmake | 4 years ago | |
| atom_rpi_masked_occlusion_files.cmake | 4 years ago | |
| atom_rpi_private_files.cmake | 4 years ago | |
| atom_rpi_private_shared_files.cmake | 4 years ago | |
| atom_rpi_public_files.cmake | 4 years ago | |
| atom_rpi_reflect_files.cmake | 4 years ago | |
| atom_rpi_tests_files.cmake | 4 years ago | |
| rpi_shared_files.cmake | 4 years ago | |