ShuriZma
/
dolphin
mirror of https://github.com/dolphin-emu/dolphin.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

VertexShaderGen: Sonic epsilon hack for OpenGL ES 

debaf63fe8 moved the "Sonic epsilon hack"
to vertex shaders. However, it was only done for targets with depth
clamping. If this is not available, for example the target is OpenGL ES,
the Sonic problem appears (https://bugs.dolphin-emu.org/issues/11897).

A version of the "Sonic epsilon hack" is added for targets without
depth clamping.
This commit is contained in:
blåhaj 2021-04-02 15:12:30 +02:00
parent a2fa9aab5b
commit f339bc69c8
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
Source/Core/VideoCommon/VertexShaderGen.cpp
View File

@ -498,6 +498,12 @@ ShaderCode GenerateVertexShaderCode(APIType api_type, const ShaderHostConfig& ho
"o.clipDist1 = clipDist1;\n"); "o.clipDist1 = clipDist1;\n");
} }
} }
else
{
// Same depth adjustment for Sonic. Without depth clamping, it unfortunately
// affects non-clipping uses of depth too.
out.Write("o.pos.z = o.pos.z * (1.0 - 1e-7);\n");
}
// Write the true depth value. If the game uses depth textures, then the pixel shader will // Write the true depth value. If the game uses depth textures, then the pixel shader will
// override it with the correct values if not then early z culling will improve speed. // override it with the correct values if not then early z culling will improve speed.