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Code Issues 156 Wiki Activity

docs(tools): a dark metal is reported as one the shaders light as a painted surface, with the choice of a brighter diffuse for a real metal or B = 0 for paint, a metal reflects at least at half strength whatever its normal map alpha, and the source textures are TGA from which BC7 replaces the DDS

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maj00r
2026-10-14 22:10:55 +02:00
parent 47716b50ff
commit e27e9a3639
2 changed files with 10 additions and 5 deletions
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7
tools/materials/validate_materials.py
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@@ -52,6 +52,7 @@ class Shaders:
def __init__(self, directory):
self.directory = directory
self.cache = {}
self.metal_fix = 'metal_dark' in self.source('light_common.glsl')
def source(self, name):
path = os.path.join(self.directory, name)
@@ -306,12 +307,16 @@ def check(mat, values, nested, shaders, resolver, images, rel):
if diffuse is not None:
albedo = srgb_to_linear(diffuse[..., :3]) @ np.array([0.2126, 0.7152, 0.0722])
a50 = pct(albedo[metal], 50)
if a50 < METAL_ALBEDO_MIN:
if a50 < METAL_ALBEDO_MIN and shaders.metal_fix:
add(WARN, 'metal z ciemnym diffuse (liniowo %.2f, norma >= %.1f): shader liczy go jak lakier z R 0.06; metal - rozjasnij diffuse, lakier - ustaw B = 0' % (a50, METAL_ALBEDO_MIN))
elif a50 < METAL_ALBEDO_MIN:
add(ERROR if a50 < METAL_ALBEDO_MIN / 2 else WARN,
'metal z ciemnym diffuse (liniowo %.2f, norma >= %.1f): wyjdzie czarny' % (a50, METAL_ALBEDO_MIN))
normal = image('normalmap') if shader['reflectivity'] == 'normalmap' else None
if normal is not None:
reflect = float(np.median(normal[..., 3][metal])) * pr
if shaders.metal_fix:
reflect = max(reflect, 0.5)
if reflect < METAL_REFLECTIVITY_MIN:
add(WARN, 'metal z odbiciem %.2f (alfa normalmapy * param_reflection, norma >= %.1f): bez otoczenia jest ciemny' % (reflect, METAL_REFLECTIVITY_MIN))
middle = ((B > 0.15) & (B < 0.85) & mask)