Render a custom Gui Overlay like the Pumpkin Blur

[Kloonder]

Hey Guys,

I have a problem, I want to render a zoom Scope from a sniper into the Screen, I already created the Gui class and can already render stuff into the screen, but my problem is, I already looked up in the GuiIngame Class, I dont know how to draw a image into the screen, which renders so, that the image renders in every resolution right.I hope you unterstand what I mean. It should render like the Pumkin blur, only with another texture.

 

This is my Gui class. It renders after the Expierencebar.

package de.kloon.advancedguns.client;

import org.lwjgl.opengl.GL11;
import org.lwjgl.opengl.XRandR.Screen;

import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.Gui;
import net.minecraft.client.gui.ScaledResolution;
import net.minecraft.client.renderer.OpenGlHelper;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.util.IIcon;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.client.event.RenderGameOverlayEvent;
import net.minecraftforge.event.entity.minecart.MinecartCollisionEvent;
import cpw.mods.fml.common.eventhandler.EventPriority;
import cpw.mods.fml.common.eventhandler.SubscribeEvent;
import de.kloon.advancedguns.main.AdvGuns;

public class GuiZoomScope extends Gui{

private Minecraft mc;
private int height;
private int width;
//	public static final ResourceLocation texture = new ResourceLocation(AdvGuns.modid + ":textures/gui/6x Zoom Scope Overlay.png");
public static final ResourceLocation texture = new ResourceLocation("textures/misc/pumpkinblur.png");

public GuiZoomScope(Minecraft minecraft) {
	super();
	this.mc = minecraft;
}

@SubscribeEvent(priority = EventPriority.NORMAL)
public void onRenderExperienceBar(RenderGameOverlayEvent event){


}

}

[MultiMote]

    public static void drawDrawFullscreenImage(int width, int height) {
        Tessellator tessellator = Tessellator.instance;
        tessellator.startDrawingQuads();
        tessellator.addVertexWithUV(0.0D, (double)height, -90.0D, 0.0D, 1.0D);
        tessellator.addVertexWithUV((double)width, (double)height, -90.0D, 1.0D, 1.0D);
        tessellator.addVertexWithUV((double)width, 0.0D, -90.0D, 1.0D, 0.0D);
        tessellator.addVertexWithUV(0.0D, 0.0D, -90.0D, 0.0D, 0.0D);
        tessellator.draw();
    }

[Kloonder]

    public static void drawDrawFullscreenImage(int width, int height) {
        Tessellator tessellator = Tessellator.instance;
        tessellator.startDrawingQuads();
        tessellator.addVertexWithUV(0.0D, (double)height, -90.0D, 0.0D, 1.0D);
        tessellator.addVertexWithUV((double)width, (double)height, -90.0D, 1.0D, 1.0D);
        tessellator.addVertexWithUV((double)width, 0.0D, -90.0D, 1.0D, 0.0D);
        tessellator.addVertexWithUV(0.0D, 0.0D, -90.0D, 0.0D, 0.0D);
        tessellator.draw();
    }

 

OK, You'reposting the raw code, but I want to learn something, can you please teach me what this means?

[larsgerrits]

Well, that code starts drawing a quad, adds 4 vertices to the tessellator and draws that to the screen. You need to bind the texture first and then call that method.

[Kloonder]

Well, that code starts drawing a quad, adds 4 vertices to the tessellator and draws that to the screen. You need to bind the texture first and then call that method.

 

My Problem is, my scrren only gets Black, I know the Image gets loaded, but it draws it black,why?

 

public void onRenderExperienceBar(RenderGameOverlayEvent event){
	height = Minecraft.getMinecraft().displayHeight;
	width = Minecraft.getMinecraft().displayWidth;

	Tessellator tessellator = Tessellator.instance;
	this.mc.getTextureManager().bindTexture(texture);
        tessellator.startDrawingQuads();
        tessellator.addVertexWithUV(0.0D, (double)height, -90.0D, 0.0D, 1.0D);
        tessellator.addVertexWithUV((double)width, (double)height, -90.0D, 1.0D, 1.0D);
        tessellator.addVertexWithUV((double)width, 0.0D, -90.0D, 1.0D, 0.0D);
        tessellator.addVertexWithUV(0.0D, 0.0D, -90.0D, 0.0D, 0.0D);
        tessellator.draw();

}

[larsgerrits]

Right now you're rendering a lot of times. You nee to check if

event.type == ElementType.A_TYPE

before rendering.

[MultiMote]

And use RenderGameOverlayEvent.Post

And enable blending