Okay previously I made a topic asking about using the Tessellator and I was told to just use the GlStateManager and I've really been trying. What I'm trying to do is render a square that rotates with the camera based on the player view. I've been trying to use code from Render.class but it's been a struggle still. Here's what I've got so far:

public void drawNameWithHealth(Entity entity, RendererLivingEntity renderer)
{
	Tessellator t = Tessellator.getInstance(); 
	WorldRenderer tw = t.getWorldRenderer();
	tw.startDrawingQuads();
	GL11.glPushMatrix();
	GL11.glEnable(GL11.GL_BLEND);
	tw.setColorRGBA_F(0.0F, 0.0F, 0.0F, 0.25F);
	GL11.glRotatef(-renderer.func_177068_d().playerViewY, 0.0F, 1.0F, 0.0F);
	GL11.glRotatef(renderer.func_177068_d().playerViewX, 1.0F, 0.0F, 0.0F);
                tw.addVertex(0,2,0);
	tw.addVertex(0,3,0);
	tw.addVertex(1,3,0);
	tw.addVertex(1,2,0);
	GL11.glPopMatrix();
	t.draw();
}

@SubscribeEvent
public void handlerRenderLiving(RenderLivingEvent.Pre event)
{
	drawNameWithHealth(event.entity, event.renderer);
}

 

And when I run it, the player gets an ugly semi-transparent square to the upper left of it's model. This is okay, however even though I'm calling GlStateManager.rotate, it does not rotate.

 

Also if you're wondering, the function func_177068_d() does, is it simply returns a RenderManager because the variable renderManager is protected and thus I cannot call renderer.renderManager, but this is essentially what I'm doing.

 

The reason i'm calling the renderer.func_177068_d() code is because in the Render.class, they use

            GlStateManager.rotate(-this.renderManager.playerViewY, 0.0F, 1.0F, 0.0F);
            GlStateManager.rotate(this.renderManager.playerViewX, 1.0F, 0.0F, 0.0F);

to achieve the effect I desire.

 

What am I doing wrong and how can I fix it?

Thank you!

 

Edit: Changed GlStateManager to GL11 so it all uses GL11 instead of some of each.

Try

.addVertexWithUV();

 

Have you looked at this guide? It is actually pretty useful

http://greyminecraftcoder.blogspot.com/2013/08/the-tessellator.html

Try

.addVertexWithUV();

 

Have you looked at this guide? It is actually pretty useful

http://greyminecraftcoder.blogspot.com/2013/08/the-tessellator.html

It somewhat helped, atleast for understand the UV section, so thank you for that

However the plane I've created still does not rotate...

Show me the code that you added

Show me the code that you added

Alright it's broken into two methods, which are:

public void drawUglyQuad(Entity entity, RendererLivingEntity renderer)
{
	Tessellator t = Tessellator.getInstance(); 
	WorldRenderer tw = t.getWorldRenderer();
	tw.startDrawingQuads();
	GL11.glPushMatrix();
	GL11.glEnable(GL11.GL_BLEND);
	tw.setColorRGBA_F(0.0F, 0.0F, 0.0F, 0.25F);
	GL11.glRotatef(-renderer.func_177068_d().playerViewY, 0.0F, 1.0F, 0.0F);
	GL11.glRotatef(renderer.func_177068_d().playerViewX, 1.0F, 0.0F, 0.0F);
        tw.addVertexWithUV(0,2,0, 0, 0);
	tw.addVertexWithUV(0,3,0, 0, 0);
	tw.addVertexWithUV(1,3,0, 0, 0);
	tw.addVertexWithUV(1,2,0, 0, 0);
	GL11.glPopMatrix();
	t.draw(); 
}

@SubscribeEvent
public void handlerRenderLiving(RenderLivingEvent.Pre event)
{
	drawUglyQuad(event.entity, event.renderer);
}

Okay so I've done some changes and I've gotten it to a point where it will render a quad above an entity's head. However it still will not rotate. The code I'm using now is:

public void drawUglyQuad(Entity entity, RendererLivingEntity renderer) {
	double x = (Minecraft.getMinecraft().thePlayer.getPosition().getX() - entity.getPosition().getX()) * -1;
	double y = (Minecraft.getMinecraft().thePlayer.getPosition().getY() - entity.getPosition().getY()) * -1;
	double z = (Minecraft.getMinecraft().thePlayer.getPosition().getZ() - entity.getPosition().getZ()) * -1;
	GL11.glPushMatrix();
	Tessellator t = Tessellator.getInstance(); 
	WorldRenderer tw = t.getWorldRenderer();
	tw.startDrawingQuads();
	GL11.glEnable(GL11.GL_BLEND);
	GlStateManager.translate(x,y,z);
	GlStateManager.rotate(-renderer.func_177068_d().playerViewY % 360, 1.0F, 1.0F, 1.0F);
	GlStateManager.rotate(renderer.func_177068_d().playerViewX, 1.0F, 1.0F, 1.0F);
	tw.setColorRGBA_F(0.0F, 0.0F, 0.0F, 0.25F);
                tw.addVertexWithUV(x,y+2,z, 0, 0);
	tw.addVertexWithUV(x,y+3,z, 0, 0);
	tw.addVertexWithUV(x+1,y+3,z, 0, 0);
	tw.addVertexWithUV(x+1,y+2,z, 0, 0);
	GL11.glPopMatrix();
	t.draw(); 
}

@SubscribeEvent
public void handlerRenderLiving(RenderLivingEvent.Pre event) {
	drawUglyQuad(event.entity, event.renderer);
}

Any help on getting the rotation to work? I suspect the GlStateManager.translate and .rotate are doing nothing...

Dude!

 

GL11.glPopMatrix();

t.draw();

 

should be

 

t.draw();

GL11.glPopMatrix();

 

Your pop before draw undoes the translate and rotate before OpenGL gets a chance to see it.  The rendering commands aren't sent to OpenGL until you call t.draw().

 

-TGG

 

Dude!

 

GL11.glPopMatrix();

t.draw();

 

should be

 

t.draw();

GL11.glPopMatrix();

 

Your pop before draw undoes the translate and rotate before OpenGL gets a chance to see it.  The rendering commands aren't sent to OpenGL until you call t.draw().

 

-TGG

Oh my gosh. I feel like an idiot, but thank you! I can get it to work from here, now that it actually rotates