Porting XNA Shader pass, blend and cull mode into Unity shaderlab
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I had to port XNA shader into Unity's shader and want to verify that I did this correctly.
The Pass1 section that uses alpha blending like SrcBlend, DestBlend and set's cull to none is the only place I want to make sure I got right.
This is the XNA shader version:
pass Pass1
{
AlphaBlendEnable = true;
SrcBlend = SRCALPHA;
DestBlend = INVSRCALPHA;
CullMode = None;
VertexShader = compile vs_2_0 TheVertexShader();
PixelShader = compile ps_2_0 ThePixelShader();
}
This is the Unity Shaderlab port I made:
Tags{ "Queue" = "Transparent" "RenderType" = "Transparent" }
LOD 100
Blend SrcAlpha One
Blend DstAlpha OneMinusSrcAlpha
ZWrite Off
Cull Off
It seems to be working fine in Unity but is this the exactly the equivalent pass settings in Unity? If not, then what changes is requred to get the exact equivalency.
unity3d xna shader shaderlab unity3d-shaders
edited Jan 13 at 16:18
Fattie
20.6k31209455
asked Sep 27 '18 at 13:12
ProgrammerProgrammer
79.2k1093163
|
show 7 more comments
I had to port XNA shader into Unity's shader and want to verify that I did this correctly.
The Pass1 section that uses alpha blending like SrcBlend, DestBlend and set's cull to none is the only place I want to make sure I got right.
This is the XNA shader version:
pass Pass1
{
AlphaBlendEnable = true;
SrcBlend = SRCALPHA;
DestBlend = INVSRCALPHA;
CullMode = None;
VertexShader = compile vs_2_0 TheVertexShader();
PixelShader = compile ps_2_0 ThePixelShader();
}
This is the Unity Shaderlab port I made:
Tags{ "Queue" = "Transparent" "RenderType" = "Transparent" }
LOD 100
Blend SrcAlpha One
Blend DstAlpha OneMinusSrcAlpha
ZWrite Off
Cull Off
It seems to be working fine in Unity but is this the exactly the equivalent pass settings in Unity? If not, then what changes is requred to get the exact equivalency.
unity3d xna shader shaderlab unity3d-shaders
edited Jan 13 at 16:18
Fattie
20.6k31209455
asked Sep 27 '18 at 13:12
ProgrammerProgrammer
79.2k1093163
Looks correct to me.
– Eddge
Sep 27 '18 at 13:38
@Eddge Event theSrcBlend = SRCALPHA;which I usedBlend SrcAlpha Oneon the Unity side?
– Programmer
Sep 27 '18 at 13:42
That is the hard part, my gut says that is correct but my head says that would instantly set the SrcAlpha to 1, which might not be what you want... however my head is also saying that with that line you are saying srcAlpha is multiplied by 1, rather then the inverse, or the oneMinus...
– Eddge
Sep 27 '18 at 13:47
1
because if I remember correctly XNA tried to follow the same scheme as DirectX(or was HLSL), so SrcBlend would be the SrcColor, and DstBlend would be the DstColor. which would mean they possibly seperated the Alpha as well, so you might not need to do anything with Alpha but just Color.
– Eddge
Sep 27 '18 at 13:59
1
@Eddge Forgot about this question. I tried it and the output looked the-same as the one in my question. Although, that doesn't mean that what you said is not correct.
– Programmer
Oct 5 '18 at 2:33
|
show 7 more comments
I had to port XNA shader into Unity's shader and want to verify that I did this correctly.
The Pass1 section that uses alpha blending like SrcBlend, DestBlend and set's cull to none is the only place I want to make sure I got right.
This is the XNA shader version:
pass Pass1
{
AlphaBlendEnable = true;
SrcBlend = SRCALPHA;
DestBlend = INVSRCALPHA;
CullMode = None;
VertexShader = compile vs_2_0 TheVertexShader();
PixelShader = compile ps_2_0 ThePixelShader();
}
This is the Unity Shaderlab port I made:
Tags{ "Queue" = "Transparent" "RenderType" = "Transparent" }
LOD 100
Blend SrcAlpha One
Blend DstAlpha OneMinusSrcAlpha
ZWrite Off
Cull Off
It seems to be working fine in Unity but is this the exactly the equivalent pass settings in Unity? If not, then what changes is requred to get the exact equivalency.
unity3d xna shader shaderlab unity3d-shaders
edited Jan 13 at 16:18
Fattie
20.6k31209455
asked Sep 27 '18 at 13:12
ProgrammerProgrammer
79.2k1093163
I had to port XNA shader into Unity's shader and want to verify that I did this correctly.
The Pass1 section that uses alpha blending like SrcBlend, DestBlend and set's cull to none is the only place I want to make sure I got right.
This is the XNA shader version:
pass Pass1
{
AlphaBlendEnable = true;
SrcBlend = SRCALPHA;
DestBlend = INVSRCALPHA;
CullMode = None;
VertexShader = compile vs_2_0 TheVertexShader();
PixelShader = compile ps_2_0 ThePixelShader();
}
This is the Unity Shaderlab port I made:
Tags{ "Queue" = "Transparent" "RenderType" = "Transparent" }
LOD 100
Blend SrcAlpha One
Blend DstAlpha OneMinusSrcAlpha
ZWrite Off
Cull Off
It seems to be working fine in Unity but is this the exactly the equivalent pass settings in Unity? If not, then what changes is requred to get the exact equivalency.
unity3d xna shader shaderlab unity3d-shaders
unity3d xna shader shaderlab unity3d-shaders
edited Jan 13 at 16:18
Fattie
20.6k31209455
asked Sep 27 '18 at 13:12
ProgrammerProgrammer
79.2k1093163
edited Jan 13 at 16:18
Fattie
20.6k31209455
asked Sep 27 '18 at 13:12
ProgrammerProgrammer
79.2k1093163
edited Jan 13 at 16:18
Fattie
20.6k31209455
edited Jan 13 at 16:18
Fattie
20.6k31209455
edited Jan 13 at 16:18
Fattie
20.6k31209455
20.6k31209455
asked Sep 27 '18 at 13:12
ProgrammerProgrammer
79.2k1093163
asked Sep 27 '18 at 13:12
ProgrammerProgrammer
79.2k1093163
asked Sep 27 '18 at 13:12
ProgrammerProgrammer
79.2k1093163
79.2k1093163
Looks correct to me.
– Eddge
Sep 27 '18 at 13:38
@Eddge Event theSrcBlend = SRCALPHA;which I usedBlend SrcAlpha Oneon the Unity side?
– Programmer
Sep 27 '18 at 13:42
That is the hard part, my gut says that is correct but my head says that would instantly set the SrcAlpha to 1, which might not be what you want... however my head is also saying that with that line you are saying srcAlpha is multiplied by 1, rather then the inverse, or the oneMinus...
– Eddge
Sep 27 '18 at 13:47
1
because if I remember correctly XNA tried to follow the same scheme as DirectX(or was HLSL), so SrcBlend would be the SrcColor, and DstBlend would be the DstColor. which would mean they possibly seperated the Alpha as well, so you might not need to do anything with Alpha but just Color.
– Eddge
Sep 27 '18 at 13:59
1
@Eddge Forgot about this question. I tried it and the output looked the-same as the one in my question. Although, that doesn't mean that what you said is not correct.
– Programmer
Oct 5 '18 at 2:33
|
show 7 more comments
Looks correct to me.
– Eddge
Sep 27 '18 at 13:38
@Eddge Event theSrcBlend = SRCALPHA;which I usedBlend SrcAlpha Oneon the Unity side?
– Programmer
Sep 27 '18 at 13:42
That is the hard part, my gut says that is correct but my head says that would instantly set the SrcAlpha to 1, which might not be what you want... however my head is also saying that with that line you are saying srcAlpha is multiplied by 1, rather then the inverse, or the oneMinus...
– Eddge
Sep 27 '18 at 13:47
1
because if I remember correctly XNA tried to follow the same scheme as DirectX(or was HLSL), so SrcBlend would be the SrcColor, and DstBlend would be the DstColor. which would mean they possibly seperated the Alpha as well, so you might not need to do anything with Alpha but just Color.
– Eddge
Sep 27 '18 at 13:59
1
@Eddge Forgot about this question. I tried it and the output looked the-same as the one in my question. Although, that doesn't mean that what you said is not correct.
– Programmer
Oct 5 '18 at 2:33
Looks correct to me.
– Eddge
Sep 27 '18 at 13:38
Looks correct to me.
– Eddge
Sep 27 '18 at 13:38
@Eddge Event the
SrcBlend = SRCALPHA; which I used Blend SrcAlpha One on the Unity side?– Programmer
Sep 27 '18 at 13:42
@Eddge Event the
SrcBlend = SRCALPHA; which I used Blend SrcAlpha One on the Unity side?– Programmer
Sep 27 '18 at 13:42
That is the hard part, my gut says that is correct but my head says that would instantly set the SrcAlpha to 1, which might not be what you want... however my head is also saying that with that line you are saying srcAlpha is multiplied by 1, rather then the inverse, or the oneMinus...
– Eddge
Sep 27 '18 at 13:47
That is the hard part, my gut says that is correct but my head says that would instantly set the SrcAlpha to 1, which might not be what you want... however my head is also saying that with that line you are saying srcAlpha is multiplied by 1, rather then the inverse, or the oneMinus...
– Eddge
Sep 27 '18 at 13:47
1
1
because if I remember correctly XNA tried to follow the same scheme as DirectX(or was HLSL), so SrcBlend would be the SrcColor, and DstBlend would be the DstColor. which would mean they possibly seperated the Alpha as well, so you might not need to do anything with Alpha but just Color.
– Eddge
Sep 27 '18 at 13:59
because if I remember correctly XNA tried to follow the same scheme as DirectX(or was HLSL), so SrcBlend would be the SrcColor, and DstBlend would be the DstColor. which would mean they possibly seperated the Alpha as well, so you might not need to do anything with Alpha but just Color.
– Eddge
Sep 27 '18 at 13:59
1
1
@Eddge Forgot about this question. I tried it and the output looked the-same as the one in my question. Although, that doesn't mean that what you said is not correct.
– Programmer
Oct 5 '18 at 2:33
@Eddge Forgot about this question. I tried it and the output looked the-same as the one in my question. Although, that doesn't mean that what you said is not correct.
– Programmer
Oct 5 '18 at 2:33
|
show 7 more comments
1 Answer
1
active
oldest
votes
You should only put the "Blend" keyword once: the two keywords after it are the blend factors used for the source and destination respectively. You can think of it as being on the format "Blend [SrcBlend] [DstBlend]".
Here is the correct blending:
Blend SrcAlpha OneMinusSrcAlpha
This results in basic alpha blending.
answered Jan 4 at 13:26
Kalle HalvarssonKalle Halvarsson
481210
add a comment |
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You should only put the "Blend" keyword once: the two keywords after it are the blend factors used for the source and destination respectively. You can think of it as being on the format "Blend [SrcBlend] [DstBlend]".
Here is the correct blending:
Blend SrcAlpha OneMinusSrcAlpha
This results in basic alpha blending.
answered Jan 4 at 13:26
Kalle HalvarssonKalle Halvarsson
481210
add a comment |
You should only put the "Blend" keyword once: the two keywords after it are the blend factors used for the source and destination respectively. You can think of it as being on the format "Blend [SrcBlend] [DstBlend]".
Here is the correct blending:
Blend SrcAlpha OneMinusSrcAlpha
This results in basic alpha blending.
answered Jan 4 at 13:26
Kalle HalvarssonKalle Halvarsson
481210
add a comment |
You should only put the "Blend" keyword once: the two keywords after it are the blend factors used for the source and destination respectively. You can think of it as being on the format "Blend [SrcBlend] [DstBlend]".
Here is the correct blending:
Blend SrcAlpha OneMinusSrcAlpha
This results in basic alpha blending.
answered Jan 4 at 13:26
Kalle HalvarssonKalle Halvarsson
481210
You should only put the "Blend" keyword once: the two keywords after it are the blend factors used for the source and destination respectively. You can think of it as being on the format "Blend [SrcBlend] [DstBlend]".
Here is the correct blending:
Blend SrcAlpha OneMinusSrcAlpha
This results in basic alpha blending.
answered Jan 4 at 13:26
Kalle HalvarssonKalle Halvarsson
481210
answered Jan 4 at 13:26
Kalle HalvarssonKalle Halvarsson
481210
answered Jan 4 at 13:26
Kalle HalvarssonKalle Halvarsson
481210
answered Jan 4 at 13:26
Kalle HalvarssonKalle Halvarsson
481210
481210
add a comment |
add a comment |
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Looks correct to me.
– Eddge
Sep 27 '18 at 13:38
@Eddge Event the
SrcBlend = SRCALPHA;which I usedBlend SrcAlpha Oneon the Unity side?– Programmer
Sep 27 '18 at 13:42
That is the hard part, my gut says that is correct but my head says that would instantly set the SrcAlpha to 1, which might not be what you want... however my head is also saying that with that line you are saying srcAlpha is multiplied by 1, rather then the inverse, or the oneMinus...
– Eddge
Sep 27 '18 at 13:47
1
because if I remember correctly XNA tried to follow the same scheme as DirectX(or was HLSL), so SrcBlend would be the SrcColor, and DstBlend would be the DstColor. which would mean they possibly seperated the Alpha as well, so you might not need to do anything with Alpha but just Color.
– Eddge
Sep 27 '18 at 13:59
1
@Eddge Forgot about this question. I tried it and the output looked the-same as the one in my question. Although, that doesn't mean that what you said is not correct.
– Programmer
Oct 5 '18 at 2:33