Undesired quantity limit for dxDrawModel3D when alphaTransparency is enabled on the model.

[ZbyK77]

Describe the bug

When a model has the alphaTransparency property enabled, the number of displayed objects becomes limited (~200). The issue does not occur when alphaTransparency is set to false.
This applies to both default models and replaced ones.

This is mainly a problem with all types of grasses and plants.

Steps to reproduce

1. Run resource test_grass.zip
2. Look at the grass on the farm
3. Switch 'alphaTransparency' var to true in c.lua
4. Restart resource

...Or

Run code:

startPosition = Vector3(-1193.58, -1058.74, 128)
engineStreamingRequestModel(806,true,true) -- Plant with alpha
engineStreamingRequestModel(1337,true,true) -- Bin without alpha
addEventHandler('onClientRender',root,function()
    for x=0,50 do
        for y=0,50 do
            dxDrawModel3D(806, startPosition.x + x, startPosition.y + y, startPosition.z, 0,0,0, 1,1,1,1)
        end
    end
    for x=50,100 do
        for y=0,50 do
            dxDrawModel3D(1337, startPosition.x + x, startPosition.y + y, startPosition.z+1, 0,0,0, 1,1,1,1)
        end
    end
end)

Look at the number of objects.

Version

Multi Theft Auto v1.6-release-23953

Additional context

Two model combinations (same quantity)

Grass model when alphaTransparency is false.

alphaTransarency is true

Relevant log output

Security Policy

• I have read and understood the Security Policy and this issue is not security related.

[FileEX]

m_alphaEntityList in CVisibilityPlugins is an array that holds exactly 200 elements. We can increase this limit, but how would that affect performance?

Most likely, GTA never exceeds 200 alpha entities (objects/buildings) at the same time, but I’m not sure how it looks, for example, in a forest with many bushes having the draw_last flag. The concern is that it could impact both performance and memory usage, because more transparent objects could be rendered simultaneously.

A possibly better solution would be either a special world property or a client-side function that allows managing the size of this array.