Sprite atlas, instancing and uniform buffer size

[FurredDragon]

@Dark_Photon

How old where those posts you refer to?

The post, remove the extra space character -

Most efficient way to use multiple textures with instancing

In my 3D game i am planning to compose every object from many seperate meshes. Every human for example will have a skeleton and every joint will have a mesh. This way i could build a human only using one small cube mesh. I would upload all the matrix data for each cube instance to the shader and then draw all cubes with one draw call. The plan is to be able to draw basically one third of my whole 3D world with just one draw call. But the problem is with the textures. I obviously dont want all t…

But aren’t texture arrays unsupported on some platforms? I’m not completely sure, if I want to port my game on other platforms in future, I don’t want to be blocked by this.

After a few minutes of thinking
Maybe I can rewrite my renderer for these platforms to use atlas, ok. But how big can be my sampler array (uniform sampler2D samplers[NUM];, I guess)? Can I store them all inside SSBO?

SSBO
Wiki (Shader_Storage_Buffer_Object#OpenGL_usage) says how to setup it, but for me it wasn’t completely clear ho to access that data from inside shader (I’m noob, may be it obvious for everyone else), but if someone want to know:
wiki example

layout(std430, binding = 3) buffer layoutName
{
    int data_SSBO[];
};

Change to

layout(std430, binding = 3) buffer layoutName
{
    int data_SSBO[];
} ssboData;

and access it like ssboData.data_SSBO[123].