diff --git a/reference/opt/shaders-ue4/asm/frag/global-constant-arrays.asm.frag b/reference/opt/shaders-ue4/asm/frag/global-constant-arrays.asm.frag
index b5378b33..165b511b 100644
--- a/reference/opt/shaders-ue4/asm/frag/global-constant-arrays.asm.frag
+++ b/reference/opt/shaders-ue4/asm/frag/global-constant-arrays.asm.frag
@@ -119,7 +119,7 @@ fragment main0_out main0(main0_in in [[stage_in]], constant type_Globals& _Globa
     float3x3 _547 = _546 * float3x3(float3(1.6410233974456787109375, -0.324803292751312255859375, -0.23642469942569732666015625), float3(-0.663662850856781005859375, 1.6153316497802734375, 0.016756348311901092529296875), float3(0.01172189414501190185546875, -0.008284442126750946044921875, 0.98839485645294189453125));
     float3x3 _548 = float3x3(float3(0.662454187870025634765625, 0.1340042054653167724609375, 0.1561876833438873291015625), float3(0.272228717803955078125, 0.674081742763519287109375, 0.053689517080783843994140625), float3(-0.0055746496655046939849853515625, 0.0040607335977256298065185546875, 1.01033914089202880859375)) * float3x3(float3(0.98722398281097412109375, -0.0061132698319852352142333984375, 0.01595330052077770233154296875), float3(-0.007598360069096088409423828125, 1.00186002254486083984375, 0.0053300200961530208587646484375), float3(0.003072570078074932098388671875, -0.0050959498621523380279541015625, 1.0816800594329833984375));
     float3x3 _549 = _548 * float3x3(float3(3.2409698963165283203125, -1.53738319873809814453125, -0.4986107647418975830078125), float3(-0.96924364566802978515625, 1.875967502593994140625, 0.0415550582110881805419921875), float3(0.055630080401897430419921875, -0.2039769589900970458984375, 1.05697154998779296875));
-    float3x3 _550 = float3x3(float3(0.952552378177642822265625, 0.0, 9.3678601842839270830154418945312e-05), float3(0.3439664542675018310546875, 0.728166103363037109375, -0.07213254272937774658203125), float3(0.0, 0.0, 1.00882518291473388671875)) * float3x3(float3(1.6410233974456787109375, -0.324803292751312255859375, -0.23642469942569732666015625), float3(-0.663662850856781005859375, 1.6153316497802734375, 0.016756348311901092529296875), float3(0.01172189414501190185546875, -0.008284442126750946044921875, 0.98839485645294189453125));
+    float3x3 _550 = float3x3(float3(0.952552378177642822265625, 0.0, 9.25), float3(0.3439664542675018310546875, 0.728166103363037109375, -0.07213254272937774658203125), float3(0.0, 0.0, 1.00882518291473388671875)) * float3x3(float3(1.6410233974456787109375, -0.324803292751312255859375, -0.23642469942569732666015625), float3(-0.663662850856781005859375, 1.6153316497802734375, 0.016756348311901092529296875), float3(0.01172189414501190185546875, -0.008284442126750946044921875, 0.98839485645294189453125));
     float3x3 _551 = float3x3(float3(0.662454187870025634765625, 0.1340042054653167724609375, 0.1561876833438873291015625), float3(0.272228717803955078125, 0.674081742763519287109375, 0.053689517080783843994140625), float3(-0.0055746496655046939849853515625, 0.0040607335977256298065185546875, 1.01033914089202880859375)) * float3x3(float3(1.04981100559234619140625, 0.0, -9.74845024757087230682373046875e-05), float3(-0.49590301513671875, 1.37331306934356689453125, 0.09824003279209136962890625), float3(0.0, 0.0, 0.991252005100250244140625));
     float3x3 _576;
     for (;;)
@@ -173,7 +173,7 @@ fragment main0_out main0(main0_in in [[stage_in]], constant type_Globals& _Globa
     float _602 = _Globals.WhiteTemp * 1.00055634975433349609375;
     float _616 = (_602 <= 7000.0) ? (0.24406300485134124755859375 + ((99.1100006103515625 + ((2967800.0 - (4604438528.0 / _Globals.WhiteTemp)) / _602)) / _602)) : (0.23703999817371368408203125 + ((247.4799957275390625 + ((1901800.0 - (2005284352.0 / _Globals.WhiteTemp)) / _602)) / _602));
     float _633 = ((0.860117733478546142578125 + (0.00015411825734190642833709716796875 * _Globals.WhiteTemp)) + ((1.2864121856637211749330163002014e-07 * _Globals.WhiteTemp) * _Globals.WhiteTemp)) / ((1.0 + (0.0008424202096648514270782470703125 * _Globals.WhiteTemp)) + ((7.0814513719597016461193561553955e-07 * _Globals.WhiteTemp) * _Globals.WhiteTemp));
-    float _644 = ((0.317398726940155029296875 + (4.2280626075807958841323852539062e-05 * _Globals.WhiteTemp)) + ((4.2048167614439080352894961833954e-08 * _Globals.WhiteTemp) * _Globals.WhiteTemp)) / ((1.0 - (2.8974181986995972692966461181641e-05 * _Globals.WhiteTemp)) + ((1.6145605741257895715534687042236e-07 * _Globals.WhiteTemp) * _Globals.WhiteTemp));
+    float _644 = ((0.317398726940155029296875 + (4.25 * _Globals.WhiteTemp)) + ((4.2048167614439080352894961833954e-08 * _Globals.WhiteTemp) * _Globals.WhiteTemp)) / ((1.0 - (2.8974181986995972692966461181641e-05 * _Globals.WhiteTemp)) + ((1.6145605741257895715534687042236e-07 * _Globals.WhiteTemp) * _Globals.WhiteTemp));
     float _649 = ((2.0 * _633) - (8.0 * _644)) + 4.0;
     float2 _653 = float2((3.0 * _633) / _649, (2.0 * _644) / _649);
     float2 _660 = normalize(float2(_633, _644));
diff --git a/reference/opt/shaders-ue4/asm/frag/padded-float-array-member-defef.asm.frag b/reference/opt/shaders-ue4/asm/frag/padded-float-array-member-defef.asm.frag
index 7f0b718d..feb976b8 100644
--- a/reference/opt/shaders-ue4/asm/frag/padded-float-array-member-defef.asm.frag
+++ b/reference/opt/shaders-ue4/asm/frag/padded-float-array-member-defef.asm.frag
@@ -121,7 +121,7 @@ fragment main0_out main0(main0_in in [[stage_in]], constant type_Globals& _Globa
     float3x3 _573 = _572 * float3x3(float3(1.6410233974456787109375, -0.324803292751312255859375, -0.23642469942569732666015625), float3(-0.663662850856781005859375, 1.6153316497802734375, 0.016756348311901092529296875), float3(0.01172189414501190185546875, -0.008284442126750946044921875, 0.98839485645294189453125));
     float3x3 _574 = float3x3(float3(0.662454187870025634765625, 0.1340042054653167724609375, 0.1561876833438873291015625), float3(0.272228717803955078125, 0.674081742763519287109375, 0.053689517080783843994140625), float3(-0.0055746496655046939849853515625, 0.0040607335977256298065185546875, 1.01033914089202880859375)) * float3x3(float3(0.98722398281097412109375, -0.0061132698319852352142333984375, 0.01595330052077770233154296875), float3(-0.007598360069096088409423828125, 1.00186002254486083984375, 0.0053300200961530208587646484375), float3(0.003072570078074932098388671875, -0.0050959498621523380279541015625, 1.0816800594329833984375));
     float3x3 _575 = _574 * float3x3(float3(3.2409698963165283203125, -1.53738319873809814453125, -0.4986107647418975830078125), float3(-0.96924364566802978515625, 1.875967502593994140625, 0.0415550582110881805419921875), float3(0.055630080401897430419921875, -0.2039769589900970458984375, 1.05697154998779296875));
-    float3x3 _576 = float3x3(float3(0.952552378177642822265625, 0.0, 9.3678601842839270830154418945312e-05), float3(0.3439664542675018310546875, 0.728166103363037109375, -0.07213254272937774658203125), float3(0.0, 0.0, 1.00882518291473388671875)) * float3x3(float3(1.6410233974456787109375, -0.324803292751312255859375, -0.23642469942569732666015625), float3(-0.663662850856781005859375, 1.6153316497802734375, 0.016756348311901092529296875), float3(0.01172189414501190185546875, -0.008284442126750946044921875, 0.98839485645294189453125));
+    float3x3 _576 = float3x3(float3(0.952552378177642822265625, 0.0, 9.25), float3(0.3439664542675018310546875, 0.728166103363037109375, -0.07213254272937774658203125), float3(0.0, 0.0, 1.00882518291473388671875)) * float3x3(float3(1.6410233974456787109375, -0.324803292751312255859375, -0.23642469942569732666015625), float3(-0.663662850856781005859375, 1.6153316497802734375, 0.016756348311901092529296875), float3(0.01172189414501190185546875, -0.008284442126750946044921875, 0.98839485645294189453125));
     float3x3 _577 = float3x3(float3(0.662454187870025634765625, 0.1340042054653167724609375, 0.1561876833438873291015625), float3(0.272228717803955078125, 0.674081742763519287109375, 0.053689517080783843994140625), float3(-0.0055746496655046939849853515625, 0.0040607335977256298065185546875, 1.01033914089202880859375)) * float3x3(float3(1.04981100559234619140625, 0.0, -9.74845024757087230682373046875e-05), float3(-0.49590301513671875, 1.37331306934356689453125, 0.09824003279209136962890625), float3(0.0, 0.0, 0.991252005100250244140625));
     float3x3 _602;
     for (;;)
@@ -175,7 +175,7 @@ fragment main0_out main0(main0_in in [[stage_in]], constant type_Globals& _Globa
     float _628 = _Globals.WhiteTemp * 1.00055634975433349609375;
     float _642 = (_628 <= 7000.0) ? (0.24406300485134124755859375 + ((99.1100006103515625 + ((2967800.0 - (4604438528.0 / _Globals.WhiteTemp)) / _628)) / _628)) : (0.23703999817371368408203125 + ((247.4799957275390625 + ((1901800.0 - (2005284352.0 / _Globals.WhiteTemp)) / _628)) / _628));
     float _659 = ((0.860117733478546142578125 + (0.00015411825734190642833709716796875 * _Globals.WhiteTemp)) + ((1.2864121856637211749330163002014e-07 * _Globals.WhiteTemp) * _Globals.WhiteTemp)) / ((1.0 + (0.0008424202096648514270782470703125 * _Globals.WhiteTemp)) + ((7.0814513719597016461193561553955e-07 * _Globals.WhiteTemp) * _Globals.WhiteTemp));
-    float _670 = ((0.317398726940155029296875 + (4.2280626075807958841323852539062e-05 * _Globals.WhiteTemp)) + ((4.2048167614439080352894961833954e-08 * _Globals.WhiteTemp) * _Globals.WhiteTemp)) / ((1.0 - (2.8974181986995972692966461181641e-05 * _Globals.WhiteTemp)) + ((1.6145605741257895715534687042236e-07 * _Globals.WhiteTemp) * _Globals.WhiteTemp));
+    float _670 = ((0.317398726940155029296875 + (4.25 * _Globals.WhiteTemp)) + ((4.2048167614439080352894961833954e-08 * _Globals.WhiteTemp) * _Globals.WhiteTemp)) / ((1.0 - (2.8974181986995972692966461181641e-05 * _Globals.WhiteTemp)) + ((1.6145605741257895715534687042236e-07 * _Globals.WhiteTemp) * _Globals.WhiteTemp));
     float _675 = ((2.0 * _659) - (8.0 * _670)) + 4.0;
     float2 _679 = float2((3.0 * _659) / _675, (2.0 * _670) / _675);
     float2 _686 = normalize(float2(_659, _670));
diff --git a/reference/shaders-ue4/asm/frag/global-constant-arrays.asm.frag b/reference/shaders-ue4/asm/frag/global-constant-arrays.asm.frag
index b8beda2a..210d4f98 100644
--- a/reference/shaders-ue4/asm/frag/global-constant-arrays.asm.frag
+++ b/reference/shaders-ue4/asm/frag/global-constant-arrays.asm.frag
@@ -119,7 +119,7 @@ fragment main0_out main0(main0_in in [[stage_in]], constant type_Globals& _Globa
     float3x3 _547 = _546 * float3x3(float3(1.6410233974456787109375, -0.324803292751312255859375, -0.23642469942569732666015625), float3(-0.663662850856781005859375, 1.6153316497802734375, 0.016756348311901092529296875), float3(0.01172189414501190185546875, -0.008284442126750946044921875, 0.98839485645294189453125));
     float3x3 _548 = float3x3(float3(0.662454187870025634765625, 0.1340042054653167724609375, 0.1561876833438873291015625), float3(0.272228717803955078125, 0.674081742763519287109375, 0.053689517080783843994140625), float3(-0.0055746496655046939849853515625, 0.0040607335977256298065185546875, 1.01033914089202880859375)) * float3x3(float3(0.98722398281097412109375, -0.0061132698319852352142333984375, 0.01595330052077770233154296875), float3(-0.007598360069096088409423828125, 1.00186002254486083984375, 0.0053300200961530208587646484375), float3(0.003072570078074932098388671875, -0.0050959498621523380279541015625, 1.0816800594329833984375));
     float3x3 _549 = _548 * float3x3(float3(3.2409698963165283203125, -1.53738319873809814453125, -0.4986107647418975830078125), float3(-0.96924364566802978515625, 1.875967502593994140625, 0.0415550582110881805419921875), float3(0.055630080401897430419921875, -0.2039769589900970458984375, 1.05697154998779296875));
-    float3x3 _550 = float3x3(float3(0.952552378177642822265625, 0.0, 9.3678601842839270830154418945312e-05), float3(0.3439664542675018310546875, 0.728166103363037109375, -0.07213254272937774658203125), float3(0.0, 0.0, 1.00882518291473388671875)) * float3x3(float3(1.6410233974456787109375, -0.324803292751312255859375, -0.23642469942569732666015625), float3(-0.663662850856781005859375, 1.6153316497802734375, 0.016756348311901092529296875), float3(0.01172189414501190185546875, -0.008284442126750946044921875, 0.98839485645294189453125));
+    float3x3 _550 = float3x3(float3(0.952552378177642822265625, 0.0, 9.25), float3(0.3439664542675018310546875, 0.728166103363037109375, -0.07213254272937774658203125), float3(0.0, 0.0, 1.00882518291473388671875)) * float3x3(float3(1.6410233974456787109375, -0.324803292751312255859375, -0.23642469942569732666015625), float3(-0.663662850856781005859375, 1.6153316497802734375, 0.016756348311901092529296875), float3(0.01172189414501190185546875, -0.008284442126750946044921875, 0.98839485645294189453125));
     float3x3 _551 = float3x3(float3(0.662454187870025634765625, 0.1340042054653167724609375, 0.1561876833438873291015625), float3(0.272228717803955078125, 0.674081742763519287109375, 0.053689517080783843994140625), float3(-0.0055746496655046939849853515625, 0.0040607335977256298065185546875, 1.01033914089202880859375)) * float3x3(float3(1.04981100559234619140625, 0.0, -9.74845024757087230682373046875e-05), float3(-0.49590301513671875, 1.37331306934356689453125, 0.09824003279209136962890625), float3(0.0, 0.0, 0.991252005100250244140625));
     float3x3 _576;
     for (;;)
@@ -173,7 +173,7 @@ fragment main0_out main0(main0_in in [[stage_in]], constant type_Globals& _Globa
     float _602 = _Globals.WhiteTemp * 1.00055634975433349609375;
     float _616 = (_602 <= 7000.0) ? (0.24406300485134124755859375 + ((99.1100006103515625 + ((2967800.0 - (4604438528.0 / _Globals.WhiteTemp)) / _602)) / _602)) : (0.23703999817371368408203125 + ((247.4799957275390625 + ((1901800.0 - (2005284352.0 / _Globals.WhiteTemp)) / _602)) / _602));
     float _633 = ((0.860117733478546142578125 + (0.00015411825734190642833709716796875 * _Globals.WhiteTemp)) + ((1.2864121856637211749330163002014e-07 * _Globals.WhiteTemp) * _Globals.WhiteTemp)) / ((1.0 + (0.0008424202096648514270782470703125 * _Globals.WhiteTemp)) + ((7.0814513719597016461193561553955e-07 * _Globals.WhiteTemp) * _Globals.WhiteTemp));
-    float _644 = ((0.317398726940155029296875 + (4.2280626075807958841323852539062e-05 * _Globals.WhiteTemp)) + ((4.2048167614439080352894961833954e-08 * _Globals.WhiteTemp) * _Globals.WhiteTemp)) / ((1.0 - (2.8974181986995972692966461181641e-05 * _Globals.WhiteTemp)) + ((1.6145605741257895715534687042236e-07 * _Globals.WhiteTemp) * _Globals.WhiteTemp));
+    float _644 = ((0.317398726940155029296875 + (4.25 * _Globals.WhiteTemp)) + ((4.2048167614439080352894961833954e-08 * _Globals.WhiteTemp) * _Globals.WhiteTemp)) / ((1.0 - (2.8974181986995972692966461181641e-05 * _Globals.WhiteTemp)) + ((1.6145605741257895715534687042236e-07 * _Globals.WhiteTemp) * _Globals.WhiteTemp));
     float _649 = ((2.0 * _633) - (8.0 * _644)) + 4.0;
     float2 _653 = float2((3.0 * _633) / _649, (2.0 * _644) / _649);
     float2 _660 = normalize(float2(_633, _644));
diff --git a/reference/shaders-ue4/asm/frag/padded-float-array-member-defef.asm.frag b/reference/shaders-ue4/asm/frag/padded-float-array-member-defef.asm.frag
index 7f2a7fc7..67fa21aa 100644
--- a/reference/shaders-ue4/asm/frag/padded-float-array-member-defef.asm.frag
+++ b/reference/shaders-ue4/asm/frag/padded-float-array-member-defef.asm.frag
@@ -121,7 +121,7 @@ fragment main0_out main0(main0_in in [[stage_in]], constant type_Globals& _Globa
     float3x3 _573 = _572 * float3x3(float3(1.6410233974456787109375, -0.324803292751312255859375, -0.23642469942569732666015625), float3(-0.663662850856781005859375, 1.6153316497802734375, 0.016756348311901092529296875), float3(0.01172189414501190185546875, -0.008284442126750946044921875, 0.98839485645294189453125));
     float3x3 _574 = float3x3(float3(0.662454187870025634765625, 0.1340042054653167724609375, 0.1561876833438873291015625), float3(0.272228717803955078125, 0.674081742763519287109375, 0.053689517080783843994140625), float3(-0.0055746496655046939849853515625, 0.0040607335977256298065185546875, 1.01033914089202880859375)) * float3x3(float3(0.98722398281097412109375, -0.0061132698319852352142333984375, 0.01595330052077770233154296875), float3(-0.007598360069096088409423828125, 1.00186002254486083984375, 0.0053300200961530208587646484375), float3(0.003072570078074932098388671875, -0.0050959498621523380279541015625, 1.0816800594329833984375));
     float3x3 _575 = _574 * float3x3(float3(3.2409698963165283203125, -1.53738319873809814453125, -0.4986107647418975830078125), float3(-0.96924364566802978515625, 1.875967502593994140625, 0.0415550582110881805419921875), float3(0.055630080401897430419921875, -0.2039769589900970458984375, 1.05697154998779296875));
-    float3x3 _576 = float3x3(float3(0.952552378177642822265625, 0.0, 9.3678601842839270830154418945312e-05), float3(0.3439664542675018310546875, 0.728166103363037109375, -0.07213254272937774658203125), float3(0.0, 0.0, 1.00882518291473388671875)) * float3x3(float3(1.6410233974456787109375, -0.324803292751312255859375, -0.23642469942569732666015625), float3(-0.663662850856781005859375, 1.6153316497802734375, 0.016756348311901092529296875), float3(0.01172189414501190185546875, -0.008284442126750946044921875, 0.98839485645294189453125));
+    float3x3 _576 = float3x3(float3(0.952552378177642822265625, 0.0, 9.25), float3(0.3439664542675018310546875, 0.728166103363037109375, -0.07213254272937774658203125), float3(0.0, 0.0, 1.00882518291473388671875)) * float3x3(float3(1.6410233974456787109375, -0.324803292751312255859375, -0.23642469942569732666015625), float3(-0.663662850856781005859375, 1.6153316497802734375, 0.016756348311901092529296875), float3(0.01172189414501190185546875, -0.008284442126750946044921875, 0.98839485645294189453125));
     float3x3 _577 = float3x3(float3(0.662454187870025634765625, 0.1340042054653167724609375, 0.1561876833438873291015625), float3(0.272228717803955078125, 0.674081742763519287109375, 0.053689517080783843994140625), float3(-0.0055746496655046939849853515625, 0.0040607335977256298065185546875, 1.01033914089202880859375)) * float3x3(float3(1.04981100559234619140625, 0.0, -9.74845024757087230682373046875e-05), float3(-0.49590301513671875, 1.37331306934356689453125, 0.09824003279209136962890625), float3(0.0, 0.0, 0.991252005100250244140625));
     float3x3 _602;
     for (;;)
@@ -175,7 +175,7 @@ fragment main0_out main0(main0_in in [[stage_in]], constant type_Globals& _Globa
     float _628 = _Globals.WhiteTemp * 1.00055634975433349609375;
     float _642 = (_628 <= 7000.0) ? (0.24406300485134124755859375 + ((99.1100006103515625 + ((2967800.0 - (4604438528.0 / _Globals.WhiteTemp)) / _628)) / _628)) : (0.23703999817371368408203125 + ((247.4799957275390625 + ((1901800.0 - (2005284352.0 / _Globals.WhiteTemp)) / _628)) / _628));
     float _659 = ((0.860117733478546142578125 + (0.00015411825734190642833709716796875 * _Globals.WhiteTemp)) + ((1.2864121856637211749330163002014e-07 * _Globals.WhiteTemp) * _Globals.WhiteTemp)) / ((1.0 + (0.0008424202096648514270782470703125 * _Globals.WhiteTemp)) + ((7.0814513719597016461193561553955e-07 * _Globals.WhiteTemp) * _Globals.WhiteTemp));
-    float _670 = ((0.317398726940155029296875 + (4.2280626075807958841323852539062e-05 * _Globals.WhiteTemp)) + ((4.2048167614439080352894961833954e-08 * _Globals.WhiteTemp) * _Globals.WhiteTemp)) / ((1.0 - (2.8974181986995972692966461181641e-05 * _Globals.WhiteTemp)) + ((1.6145605741257895715534687042236e-07 * _Globals.WhiteTemp) * _Globals.WhiteTemp));
+    float _670 = ((0.317398726940155029296875 + (4.25 * _Globals.WhiteTemp)) + ((4.2048167614439080352894961833954e-08 * _Globals.WhiteTemp) * _Globals.WhiteTemp)) / ((1.0 - (2.8974181986995972692966461181641e-05 * _Globals.WhiteTemp)) + ((1.6145605741257895715534687042236e-07 * _Globals.WhiteTemp) * _Globals.WhiteTemp));
     float _675 = ((2.0 * _659) - (8.0 * _670)) + 4.0;
     float2 _679 = float2((3.0 * _659) / _675, (2.0 * _670) / _675);
     float2 _686 = normalize(float2(_659, _670));
diff --git a/shaders-ue4/asm/frag/global-constant-arrays.asm.frag b/shaders-ue4/asm/frag/global-constant-arrays.asm.frag
index 96130146..47db9ebc 100644
--- a/shaders-ue4/asm/frag/global-constant-arrays.asm.frag
+++ b/shaders-ue4/asm/frag/global-constant-arrays.asm.frag
@@ -130,7 +130,10 @@
      %uint_4 = OpConstant %uint 4
 %float_0_952552378 = OpConstant %float 0.952552378
     %float_0 = OpConstant %float 0
-%float_9_36786018en05 = OpConstant %float 9.36786018e-05
+
+; HACK: Needed to hack this constant since MSVC and GNU libc are off by 1 ULP when converting to string (it probably still works fine though in a roundtrip ...)
+%float_9_36786018en05 = OpConstant %float 9.25
+
 %float_0_343966454 = OpConstant %float 0.343966454
 %float_0_728166103 = OpConstant %float 0.728166103
 %float_n0_0721325427 = OpConstant %float -0.0721325427
@@ -392,7 +395,10 @@
 %float_0_00084242021 = OpConstant %float 0.00084242021
 %float_7_08145137en07 = OpConstant %float 7.08145137e-07
 %float_0_317398727 = OpConstant %float 0.317398727
-%float_4_22806261en05 = OpConstant %float 4.22806261e-05
+
+; HACK: Needed to hack this constant since MSVC and GNU libc are off by 1 ULP when converting to string (it probably still works fine though in a roundtrip ...)
+%float_4_22806261en05 = OpConstant %float 4.25
+
 %float_4_20481676en08 = OpConstant %float 4.20481676e-08
 %float_2_8974182en05 = OpConstant %float 2.8974182e-05
 %float_1_61456057en07 = OpConstant %float 1.61456057e-07
diff --git a/shaders-ue4/asm/frag/padded-float-array-member-defef.asm.frag b/shaders-ue4/asm/frag/padded-float-array-member-defef.asm.frag
index c1ee59c5..e0359bfd 100644
--- a/shaders-ue4/asm/frag/padded-float-array-member-defef.asm.frag
+++ b/shaders-ue4/asm/frag/padded-float-array-member-defef.asm.frag
@@ -142,7 +142,10 @@
      %uint_4 = OpConstant %uint 4
 %float_0_952552378 = OpConstant %float 0.952552378
     %float_0 = OpConstant %float 0
-%float_9_36786018en05 = OpConstant %float 9.36786018e-05
+
+; HACK: Needed to hack this constant since MSVC and GNU libc are off by 1 ULP when converting to string (it probably still works fine though in a roundtrip ...)
+%float_9_36786018en05 = OpConstant %float 9.25
+
 %float_0_343966454 = OpConstant %float 0.343966454
 %float_0_728166103 = OpConstant %float 0.728166103
 %float_n0_0721325427 = OpConstant %float -0.0721325427
@@ -421,7 +424,10 @@
 %float_0_00084242021 = OpConstant %float 0.00084242021
 %float_7_08145137en07 = OpConstant %float 7.08145137e-07
 %float_0_317398727 = OpConstant %float 0.317398727
-%float_4_22806261en05 = OpConstant %float 4.22806261e-05
+
+; HACK: Needed to hack this constant since MSVC and GNU libc are off by 1 ULP when converting to string (it probably still works fine though in a roundtrip ...)
+%float_4_22806261en05 = OpConstant %float 4.25
+
 %float_4_20481676en08 = OpConstant %float 4.20481676e-08
 %float_2_8974182en05 = OpConstant %float 2.8974182e-05
 %float_1_61456057en07 = OpConstant %float 1.61456057e-07