[Unsolved] [1.8.9] Render Texture in TESR (without custom model)

[Aulig]

Hello,

 

Im trying to simply render the vanilla sign with a different texture if a variable is set to true.

I only need help with the rendering, everything else is done the way i want it already.

 

GL11.glPushMatrix();
GlStateManager.translate(x, y, z);
ResourceLocation customSignResource = new ResourceLocation("mymod", "textures/blocks/sign.png");   (*)
Minecraft.getMinecraft().renderEngine.bindTexture(customSignResource);                                   (*)
//I assume Im missing something here	
GL11.glPopMatrix();

 

In this state it doesnt render the texture, but the sign "exists" (i can see the hitbox when i hover over it).

The same thing happens with all lines i marked with a "*" are removed.

Do i have to create a custom model? It works if i use one, but id like to keep the standard one if possible.

 

Thanks in advance

[Aulig]

Does no one know a solution? If its possible can i somehow export the vanilla sign model?