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author | Andrey Lihatskiy <alihatskiy@productengine.com> | 2024-09-19 19:32:15 +0300 |
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committer | GitHub <noreply@github.com> | 2024-09-19 19:32:15 +0300 |
commit | b111dce31a48e1329f30366c2a5541c1434d362b (patch) | |
tree | 3f5e6517f50a942fb191877202d1ae10744eb72f /indra/newview/app_settings/shaders | |
parent | ea8d7cb40501af9b31d784da78aaaf7353af58f3 (diff) | |
parent | ea28e97d85707099ef3cadf7f5632224498af401 (diff) |
Merge pull request #2605 from secondlife/marchcat/b-main-sync
Main (DeltaFPS) → Maint B sync
Diffstat (limited to 'indra/newview/app_settings/shaders')
-rw-r--r-- | indra/newview/app_settings/shaders/class1/deferred/deferredUtil.glsl | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/deferredUtil.glsl b/indra/newview/app_settings/shaders/class1/deferred/deferredUtil.glsl index ab0e4fd4d8..3319e32cdf 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/deferredUtil.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/deferredUtil.glsl @@ -99,10 +99,13 @@ void calcHalfVectors(vec3 lv, vec3 n, vec3 v, { l = normalize(lv); h = normalize(l + v); - nh = clamp(dot(n, h), 0.0, 1.0); - nl = clamp(dot(n, l), 0.0, 1.0); - nv = clamp(dot(n, v), 0.0, 1.0); - vh = clamp(dot(v, h), 0.0, 1.0); + + // lower bound to avoid divide by zero + float eps = 0.000001; + nh = clamp(dot(n, h), eps, 1.0); + nl = clamp(dot(n, l), eps, 1.0); + nv = clamp(dot(n, v), eps, 1.0); + vh = clamp(dot(v, h), eps, 1.0); lightDist = length(lv); } |