Custom ini file.

Custom game section format:

[%Romname%]
%section_name%/%parameter%=%value%
...
%section_name%/%parameter%=%value%

Romname is the internal rom name. You may get it from Project64.rdb file. Rom may have different internal name for different regions. In that case the section must be duplicated for each internal name.
IMPORTANT: replace all spaces ' ' in the name by underscores '_'.

File contains custom setting for Rayman 2. Use it as example.

Supported custom settings:

video/multisampling

texture/maxAnisotropy
texture/bilinearMode

generalEmulation - all, 

frameBufferEmulation - all

bloomFilter - all

GLideN64.ini

@@ -0,0 +1,61 @@
+[General]
+version=3
+
+[video]
+fullscreenWidth=1920
+fullscreenHeight=1080
+windowedWidth=640
+windowedHeight=480
+fullscreenRefresh=120
+multisampling=0
+
+[texture]
+maxAnisotropy=0
+bilinearMode=1
+maxBytes=734003200
+screenShotFormat=0
+
+[generalEmulation]
+enableFog=1
+enableNoise=1
+enableLOD=1
+enableHWLighting=1
+enableCustomSettings=1
+
+[frameBufferEmulation]
+enable=1
+copyToRDRAM=1
+copyDepthToRDRAM=1
+copyFromRDRAM=0
+detectCFB=0
+N64DepthCompare=0
+aspect=1
+
+[textureFilter]
+txFilterMode=0
+txEnhancementMode=0
+txFilterIgnoreBG=0
+txCacheSize=104857600
+txHiresEnable=0
+txHiresFullAlphaChannel=0
+txHresAltCRC=0
+txDump=0
+txForce16bpp=0
+txCacheCompression=1
+txSaveCache=1
+txPath=C:/Games/N64/plugin/hires_texture
+
+[font]
+name=arial.ttf
+size=18
+color=@Variant(\0\0\0\x43\x1\xff\xff\xb5\xb5\xe6\xe6\x1d\x1d\0\0)
+
+[bloomFilter]
+enable=0
+thresholdLevel=4
+blendMode=0
+blurAmount=10
+blurStrength=20
+
+[Rayman_2]
+frameBufferEmulation\detectCFB=1