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-rw-r--r--docs/README.3DFX25
1 files changed, 23 insertions, 2 deletions
diff --git a/docs/README.3DFX b/docs/README.3DFX
index 3169d298e2e..e70aea7de96 100644
--- a/docs/README.3DFX
+++ b/docs/README.3DFX
@@ -51,8 +51,29 @@ Linux:
-Tuning:
--------
+Compilation defines:
+--------------------
+
+FX_DEBUG
+ enable driver debug code
+FX_TRAP_GLIDE
+ enable Glide trace code
+FX_TC_NAPALM
+ map GL_COMPRESSED_RGB[A] to FXT1. This will have effect on Napalm
+ only (can coexist with FX_TC_NCC, but has higher priority)
+FX_TC_NCC
+ map GL_COMPRESSED_RGB[A] to NCC. This will have effect on any 3dfx
+ HW (can coexist with FX_TC_NAPALM, but has lesser priority)
+FX_COMPRESS_S3TC_AS_FXT1_HACK
+ map S3TC to FXT1
+FX_RESCALE_BIG_TEXURES_HACK
+ fake textures larger than HW can support
+ (see MESA_FX_MAXLOD environment variable)
+
+
+
+Environment variables:
+----------------------
The following environment variables affect MesaFX. Those that affect Glide
only, are beyond the scope of this file. Entries that don't have a "Value"