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IF in shaders
Posted: Thu Jun 03, 2021 11:29 am
by wazzcob
Help with writing shader code like this:
Code: Select all
fixed4 c;
if (IN.worldPos.y < _Y2)
c = _Color2;
else if (IN.worldPos.y > _Y1)
c = _Color1;
else
{
c = lerp(_Color1, _Color2, (IN.worldPos.y - _Y1) / (_Y2 - _Y1));
}
And yes, by the way, I've come across rumors that if-else constructs in shaders are not correct.
Is this really the case or am I wrong?
Re: IF in shaders
Posted: Thu Jun 03, 2021 11:44 am
by frunggle
wazzcob wrote: ↑Thu Jun 03, 2021 11:29 am
Help with writing shader code like this:
Code: Select all
fixed4 c;
if (IN.worldPos.y < _Y2)
c = _Color2;
else if (IN.worldPos.y > _Y1)
c = _Color1;
else
{
c = lerp(_Color1, _Color2, (IN.worldPos.y - _Y1) / (_Y2 - _Y1));
}
And yes, by the way, I've come across rumors that if-else constructs in shaders are not correct.
Is this really the case or am I wrong?
Lol, programmer! Hey!
About what you write, I have no idea. However, I believe that for such a spelling they will certainly not go to jail
Re: IF in shaders
Posted: Thu Jun 03, 2021 12:03 pm
by vadbor
It is always nice to see new members on our forum, especially if they want to join this or that project. I hope your skills are useful to us.
Re: IF in shaders
Posted: Fri Jun 04, 2021 10:22 am
by wazzcob
Huh, good answers! But nothing useful, alas...
Re: IF in shaders
Posted: Sat Jun 12, 2021 8:19 am
by wazzcob
nevertheless, this question is still interesting to me... I want a more or less intelligible answer to it!