Scale a Mob on the Code

i have 80+ mobs now, if i would have to make 1 new model for each one... also i dont know how to make a mob breed and generate a diferent mob (the code), my question is; minecraft 1.15 do have scale right? so there must be a way to scale a mob, most of my mobs were made out of scale too, i would have to do all them again.

wait im lost here... on minecraft 1.12 you could scale mobs (i did it) so now on a more recent version (1.15) you CANT anymore??? also how come the cows and pigs and sheeps have their babies growing up per tick? you telling me mojang removed the scale function and did like 50 models of each of those mobs that grow?? something is really missing here...

if thats is true, i dont see how any mob mod will update to 1.15 :/

where can i see the cow .java code file? can i see it on Mcreator 2020? i could on the older versions

yes but you see... GlStateManager.scale dont work anymore on MCreator 2020 coding, so i need to replace it for something, i tried:

                    GL11.glScalef(0.2F, 0.2F, 0.2F);
                    RenderSystem.scalef(0.2F, 0.2F, 0.2F);
                    GlStateManager.scale(0.25f, 0.25f, 0.25f);

and none of those work now, i google it so much for about 3 days and i could not find a way to scale mobs on MC 1.15 at all.

but im pretty sure there is a way, because i download a 1.15 mod today that have a mob model scaled down

i use to do on 1.12 like this:

@SideOnly(Side.CLIENT)
    public void registerRenderers() {
        RenderLiving customRender = new RenderLiving<EntityBat>(Minecraft.getMinecraft().getRenderManager(), new ModelButterfly(), 0) {

            protected ResourceLocation getEntityTexture(EntityBat par1Entity) {
                return new ResourceLocation("Butterfly_CymothoeSangaris.png");
            }

            protected void preRenderCallback(EntityBat entitylivingbaseIn, float partialTickTime) {
          float f = 1.0F;
         
          GlStateManager.scale(0.2f, 0.2f, 0.2f);
             }
            
        };
        RenderingRegistry.registerEntityRenderingHandler(EntitybutterflyBloodRedGlider.class, customRender);
    }

but that wont work on 1.15, i need the proper functions witch i cant find anywhere

thanks for the location tip i found the vanilla .javas

yeah its my model, but what do you mean scale on the model class? you mean like change the values here:?

public ModelButterfly() {
            textureWidth = 64;
            textureHeight = 64;
            body = new ModelRenderer(this, 4, 4);
            body.addBox(-1F, -1F, -4F, 2, 2, 9);
            body.setRotationPoint(0F, 22F, 0F);
            body.setTextureSize(64, 64);
            body.mirror = true;

but them what about the texture? if i change this i will have to make a new texture, so i would prefer to make a hole new model on techne i guess... im asking people if its possible to scale on 1.15 and nobody knows its so strange, i saw more than 1 mod with scaled mobs for 1.15 so im pretty sure there is a way

the other major problem of doing a hole new (and smaller) butterfly model would be the texture; a butterfly on the correct size would have no more than 5 pixels per wing in lengh, this would produce a much more poor mob in terms of texture.. thats why i want to scale them so bad