Add option to edit EP1 Core shader normals computation origin instead of it being a hardcoded value

[Gmod4phun]

As seen here the position is hardcoded in-engine at (2688, 12139, 5170).

I am not sure if it is possible to make it changeable, but if it is, it would be nice to probably use the position of the entity so that it works on any position, and with multiple of the entities spawned.

[Kefta]

The diameter is also hardcoded: https://github.com/VSES/SourceEngine2007/blob/43a5c90a5ada1e69ca044595383be67f40b33c61/src_main/materialsystem/stdshaders/core_ps2x.fxc#L129-L130 https://github.com/VSES/SourceEngine2007/blob/43a5c90a5ada1e69ca044595383be67f40b33c61/src_main/materialsystem/stdshaders/core_vs11.fxc#L138-L140

[stepa2]

In Black Mesa, the following vmt exists:

"Core"
{
    "$normalmap" "Models/props_lambda/superportal/superportal_normal"
    "$dudvmap"  "Models/props_lambda/superportal/superportal_dudv"
    "$corecolortexture" "Models/props_lambda/superportal/eg_superportal_warpcolor"
    "$flowmap" "models/props_lambda/superportal/superportal_flow"
    "$model" 1
    "$envmap" "env_cubemap"

// YOU CAN **** WITH THESE.
    "$REFRACTAmOUNT" "0.25"
    "$FLOWMAPSCROLLRATE" "[.0475 .133]"
    "$refracttint" "[0.5 1 0.3]"
    "$envmaptint" "[0.8 0.6 0.6]"
// SET THIS TO THE DIAMETER OF YOUR MODEL
    "$DIAMETER" "100"
    "$DMin" 600
    "$DMax" 700
// LEAVE THIS ALONE, EntityOrigin IS SET BY THE PROXY
    "$entityorigin" "{2688 12139 5170}"//needed for proxy

// BUT DON'T **** WITH THESE BRO.
    "$FLOWMAPTEXCOORDOFFSET" "1.0"
    "$TempMin" 0.21
    "$TempMax" 0.22

    "core_dx70"
    {
        "$fallbackmaterial" "models/props_lambda/superportal/superportal_dx70"
    }

    "core_dx80"
    {
        "$normalmap" "dev/water_normal"
        "$dudvmap"  "dev/water_dudv"
        "$bumptransform" "center .5 .5 scale 5 5 rotate 0 translate 0 0"
        "$envmapcontrast" "1.0"
    }

    "Proxies"
    {
        "EntityOrigin"
        {
            // assign $entityorigin
        }
        "Sine"
        {
            "resultVar" "$DIAMETER"
            "sineperiod" 4
            "sinemin" "$DMin"
            "sinemax" "$DMax"
        }
        "Sine"
        {
            "resultVar" "$FLOWMAPTEXCOORDOFFSET"
            "sineperiod" 4
            "sinemin" "$TempMin"
            "sinemax" "$TempMax"
        }
        "AnimatedTexture"
        {
            "animatedtexturevar" "$normalmap" 
            "animatedtextureframenumvar" "$bumpframe"
            "animatedtextureframerate" 29.00
        }
    }
}

The differences in shader parameters are:

• $Diameter, $DMin and $Dmax
• $entityorigin (set by exising proxy)

You can use this interface to implement the request (it could also allow to use BM models without changes)

[robotboy655]

Done. I have decided to borrow the naming mentioned above for the variables.

$EntityOrigin [ 0 0 0 ]
$Diameter 430

etc

[Gmod4phun]

After 5 years in development, hopefully it will be worth the wait :)