error while compiling after using branching in fragment shader code

Graphics
1 
             bool nearer = (nearestRawDepth < raw_depth);
             nearestRawDepth = nearer ? raw_depth : nearestRawDepth;
             nearestColor = nearer ? neighbour : nearestColor;

I am using this to get nearest color and depth values, however using this makes my project unable to compile. I tried if statements with this too and got the same error.

Severity	Code	Description	Project	File	Line	Suppression State
Error	MSB3073	The command "dotnet mgcb /quiet /@:"D:\monogame_projects\tdpe\TDPEMonogame\TDPEMonogame\Content\Content.mgcb" /platform:Windows /outputDir:"D:/monogame_projects/tdpe/TDPEMonogame/TDPEMonogame/Content/bin/Windows/Content" /intermediateDir:"D:/monogame_projects/tdpe/TDPEMonogame/TDPEMonogame/Content/obj/Windows/net6.0-windows/Content" /workingDir:"D:/monogame_projects/tdpe/TDPEMonogame/TDPEMonogame/Content/"" exited with code 1.	TDPEMonogame	C:\Users\yunus\.nuget\packages\monogame.content.builder.task\3.8.1.303\build\MonoGame.Content.Builder.Task.targets	142

Generally, any conditional statement inside a shader makes me get the same error. Is branching not supported? I dont understand much from the error.

2

If you open the assets manager and build from there, you’ll get the full error string that will tell you what’s wrong.

That said, avoid if / branching if possible. Its bad for performance (small ifs are usually ok as they are usually not really branching and are optimized out, depending on the case)

3

Thanks! Will check next time. I didn’t knew i could check the error string. I fixed the issue after some debugging.

The problem was shader being old version (4_0). I changed it to (5_0) and now i can use branching. I didn’t knew it wasnt supported on that version and also didn’t knew i could see the error from assets manager. Also, i learned that i could do the same thing without branching. Like this:

bool nearer = (nearestRawDepth>raw_depth);
nearestRawDepth = (nearer * raw_depth) + ( (!nearer) * nearestRawDepth);
nearestColor = (nearer * neighbour) + ( (!nearer) * nearestColor);