Increase thresholds for a couple screenshot tests that were failing on Vulkan with benign differences.

Signed-off-by: santorac <[email protected]>

Scripts/MaterialScreenshotTests.bv.lua

@@ -211,7 +211,7 @@ g_testMaterialsFolder = 'materials/types/'
 g_screenshotOutputFolder = ResolvePath('@user@/Scripts/Screenshots/MinimalPBR/')
 Print('Saving screenshots to ' .. NormalizePath(g_screenshotOutputFolder))
 
-GenerateMaterialScreenshot('Level D', 'MinimalMultilayerExample')
+GenerateMaterialScreenshot('Level G', 'MinimalMultilayerExample')
 
 ----------------------------------------------------------------------
 -- AutoBrick Materials...

Scripts/PassTree.bv.lua

@@ -27,7 +27,7 @@ end
 OpenSample('RPI/Mesh')
 ResizeViewport(800, 600)
 
-SelectImageComparisonToleranceLevel("Level F")
+SelectImageComparisonToleranceLevel("Level G")
 
 -- choose model, material and lighting
 SetImguiValue('Models/##Available', 'objects/shaderball_simple.azmodel')