glTF-IBL-Sampler

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add missing factor to lod calculation

2

`4 * PI` is missing in the calculation of lod. It's in the comment but weirdly not in the actual code.

haCo77

At the moment we use `log2(X)` for the number of mips, so `log2(1024)` = 10 mips. This only goes down to a size of `2x2` for the smallest mip, so...

expenses

I had some errors creating the Vulkan instance on MacOS. The error message was: ``` Failed to create Vulkan instance 4294967287 ``` I think that error code should be printed...

therealbnut

v0.1.0 or something

lizelive

Lambertian distribution outputs black image?

1

Using this command line and the Khronos sample HDR: ``` cli.exe -inputPath footprint_court.hdr -distribution Lambertian -outCubeMap diffuse.ktx2 -outLUT lut_lambertian.png ``` The outputted lookup table is pure black:  Is this...

Leadwerks

Implement cubemap compression for KTX2 export

1

UX3D-wahlster

For some reason, when setting `mipLevelCount` to `1`, the outputted image is broken. It shows no color and is fully black. Not sure what the reason for it is. I...

GasimGasimzada

glTF IBL Sampler can not be used on MacOS X

2

I made a minor fix. Please use latest Vulkan SDK and the master branch. see https://github.com/KhronosGroup/glTF-Sample-Viewer/issues/257

UX3D-nopper

ERROR: 0:310: 'limitations' : inductive-loop condition requires the form "loop-index <comparison-op> constant-expression"

2

inputPath set to .\road.hdr outCubeMap set to .\road.ktx2 outLUT set to outputLUT.png sampleCount set to 1024 mipLevelCount set to 0 targetFormat set to R16G16B16A16_SFLOAT distribution set to GGX lodBias set...

junglelan

Upgrade KTX-Software to v4.3.2

6

JMLX42