Rendering from separate texture causes wrong scale

[h3tR]

Hi,

I am working on a battery icon on a screen that displays the amount of energy is stored in the related BlockEntity.

To do this I made a widget and overrided the render method to fit my needs. 

I use a separate texture so I don't have to include it in every texture for screens that are supposed to be using it.
My problem is that instead of rendering the texture in the scale of itself it renders in the scale of the background (AKA the gui for that menu without the display).
I'm not sure what causes this or how to deal with it.
Looking at how it gets blitted the code for drawing it is working as intended.

 

I will provide some images and code below for context

https://imgur.com/a/dqHJaZS
The first Image is the texture file for reference
The second image is a screenshot from ingame (The blocky mess next to the arrow is what is supposed to be the display)

 

The render method 

@Override
    public void render(@NotNull PoseStack stack, int MouseX, int MouseY, float p_94672_){
        RenderSystem.setShader(GameRenderer::getPositionTexShader);
        RenderSystem.setShaderTexture(0,RL);
        Minecraft.getInstance().getTextureManager().bindForSetup(RL);

        RenderSystem.clearColor(1.0F, 1.0F, 1.0F, 1.0F);

        //blits the battery Background
        Minecraft.getInstance().screen.blit(stack,x,y,0,0,this.width,this.height);

        int energy = menu.getEnergy();
        int maxEnergy = menu.getMaxEnergy();
        int chargeLevel = (int) Math.ceil((float)energy/maxEnergy*16);

        //blits the charge
        Minecraft.getInstance().screen.blit(stack,x+2,y+18-chargeLevel,this.width+(chargeLevel/4-1)*9,16-chargeLevel,9,chargeLevel);


    }

The where the widget gets added (In the screen class)

@Override
public void render(@NotNull PoseStack stack, int mouseX, int mouseY, float Ptick) {
	this.addRenderableWidget(new BatteryDisplay(this.getGuiLeft()+82,this.getGuiTop()+37,this.menu));
	//...
}

Thanks for the help!

[warjort]

You say you have different textures and yet you only setShaderTexture() once?

Other parts of your code look confused as well. e.g.

Why are you doing that bindForSetup()

You can replace Minecraft.getInstance().screen.blit() with this.blit() - the current minecraft screen is your Screen instance.

You should add widgets in your init(), but I don't see any calls to super.render() which is where the widgets would get drawn. See Screen.render()

I also don't see a call to renderBackground()

 

Edited September 1, 2022 by warjort

[h3tR]

17 hours ago, warjort said:

You say you have different textures and yet you only setShaderTexture() once?

Other parts of your code look confused as well. e.g.

Why are you doing that bindForSetup()

You can replace Minecraft.getInstance().screen.blit() with this.blit() - the current minecraft screen is your Screen instance.

You should add widgets in your init(), but I don't see any calls to super.render() which is where the widgets would get drawn. See Screen.render()

I also don't see a call to renderBackground()

 

I probably needed to explain some more things because, yeah, from reading my post it is quite confusing.

• I called the setShaderTexture() twice. Once in the renderBackground() method for the screen and once for the render method for the display class.
• I did bindForSetup because I didn't know what it did and I saw it being used in another widget so I thought it would be useful (I removed it now though!).
• I used this.blit() initially but because it wasn't working I thought somehow Minecraft.getInstance().screen.blit() would be something different so I just tried that as a solution (also replaced that now).
• I now added the widget in the init method for the screen and the super.render() method was already being called in the screen render method however I replaced it in with "//..." because otherwise the post would be pretty long as I'm doing a lot of other things in the method as well. Looking back at it that wasn't very helpful.
• Just like previously renderBackground() was also being called but I removed it from the post

So now to be clear and state the actual problem. Everything is working completely as intended except that the texture is render in an improper scale

(1 pixel correlates for many more when rendered for some reason)

Thanks again

[warjort]

Can you put your code on github so we can see all the relevant context.  It should compile and run.

You don't even show your updated code, let alone the other relevant code you missed from your first post.

[h3tR]

3 hours ago, warjort said:

Can you put your code on github so we can see all the relevant context.  It should compile and run.

You don't even show your updated code, let alone the other relevant code you missed from your first post.

Here you go. Github

[warjort]

Your issue is you are using the blit method designed for 256x256 images.

Since yours is a "nonstandard" size, you need to tell it the size of the image, e.g.

this.blit(stack,x,y,0,0,this.width,this.height, 49, 20);

 

[sciwhiz12]

Usually, textures should be at the 'minimum' size of 256x256, keeping the space when the content is too small, and expanding only when the content is too large to fit.

There is no inherent benefit to sizing textures to exactly fit their contents. It may even be a hindrance if you choose to add more to the texture in the future, as you would need to re-adjust the dimensions in the blit call, and it would break that texture if modified by a resource pack.