Shader parser cannot parse blendFunc correctly

[leilei-]

System Information

TrenchBroom 2019.2 on Windows

Expected Behavior

The shader to be parsed and load as selectable textures.

Steps to Reproduce

With the Quake3 configuration, add textures/sfx. Shaders such as sfx/beam_waterlight2 will not show up because of textures/sfx/glass carrying GL_ONE_MINUS_SRC_ALPHA in its blendFunc function, for one example.

Crash Info

No crash

[ericwa]

f3cf093 still can't load the textures\sfx texture collection from a vanilla Q3 installation:

Added texture collection textures\sfx
Could not load texture collection 'textures\sfx': Unknown GL enum: GL_one

• These should be case insensitive.
• An unrecognized blend mode shouldn't stop the whole texture collection from loading. The shader itself should still load too, just with a warning
• Typo: DEST should be DST in GL_ONE_MINUS_DEST_COLOR

Some of the enum values supported by Q3 are missing, see: https://github.com/id-Software/Quake-III-Arena/blob/master/code/renderer/tr_shader.c#L176

[kduske]

Okay I'll revise this, thanks for testing!