KhronosGroup / KhronosGroup/KTX-Specification
How to handle RGBE?
Open
- Dominant language
- CSS
- Stars
- 81
- Forks
- 16
- PR merge metrics
- No merged PRs in 30d
Description
There's a use for RGBE textures. What VkFormat should we use: RGBA_UNORM, RGBA_SNORM or UNKNOWN? The DFD can identifiy that the 4th channel is an exponent in the same way that R9G9B9E5 is described. For VkFormat we should probably go with whatever format is best used to upload the data to Vulkan or OpenGL.
Contributor guide
Research direction
No file or test is named. Read the specification's treatment of RGBE and R9G9B9E5, then compare how the DFD and VkFormat represent the exponent channel for Vulkan or OpenGL uploads. Done means the specification records a resolved format choice and its rationale.
Written by the indexing model from the issue text.
Assessment
- Domain
- computer-graphics
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 20/100