I'm trying to draw some world-information as an overlay (so 3D quads, not 2D HUD things) and I'm having two problems:

 

1) I can't get the quads to be full-bright.  They flicker between various lighting values as the camera moves. Pic

2) The block outline's outline color changes. Pic

 

@SubscribeEvent
public void renderEvent(DrawBlockHighlightEvent event) {
	...
		GL11.glPushMatrix();
		GL11.glTranslated(-event.player.posX, -event.player.posY, -event.player.posZ);
		GL11.glDisable(GL11.GL_LIGHTING);
		drawLine(thisBlock, points[i]);
	...
}

private void drawLine(Vec3 blockA, Vec3 blockB) {
	Tessellator tess = Tessellator.instance;
	tess.setBrightness(15728880);
	tess.startDrawing(7);
	int d = Math.round((float)blockA.distanceTo(blockB)+0.2f);

	tess.setColorOpaque_F(1F, 0F, 0F);

	float ox = (blockA.xCoord - blockB.xCoord == 0?-1f/16f:0);
	float oz = (blockA.zCoord - blockB.zCoord == 0?1f/16f:0);

	if(blockA.xCoord - blockB.xCoord > 0 || blockA.zCoord - blockB.zCoord > 0) {
		tess.addVertex(blockA.xCoord + 0.5 + ox, blockA.yCoord - 0.01, blockA.zCoord + 0.5 + oz);
		tess.addVertex(blockB.xCoord + 0.5 + ox, blockB.yCoord + 0.99, blockB.zCoord + 0.5 + oz);
		tess.addVertex(blockB.xCoord + 0.5 - ox, blockB.yCoord + 0.99, blockB.zCoord + 0.5 - oz);
		tess.addVertex(blockA.xCoord + 0.5 - ox, blockA.yCoord - 0.01, blockA.zCoord + 0.5 - oz);
	}
	else {
		tess.addVertex(blockA.xCoord + 0.5 - ox, blockA.yCoord - 0.01, blockA.zCoord + 0.5 - oz);
		tess.addVertex(blockB.xCoord + 0.5 - ox, blockB.yCoord + 0.99, blockB.zCoord + 0.5 - oz);
		tess.addVertex(blockB.xCoord + 0.5 + ox, blockB.yCoord + 0.99, blockB.zCoord + 0.5 + oz);
		tess.addVertex(blockA.xCoord + 0.5 + ox, blockA.yCoord - 0.01, blockA.zCoord + 0.5 + oz);
	}

	tess.draw();
}

 

What've I missed?

1) Where do  you pop your matrix?

2) Maybe using

glPushAttrib

and

glPopAttrib

will help.

1) Where do  you pop your matrix?

2) Maybe using

glPushAttrib

and

glPopAttrib

will help.

 

1) I trimmed it (there's about 12 lines I removed, checking for various things).  I know about push/pop.  In retrospect I should have left that in.

2)

GL11.glPushAttrib(GL11.GL_ENABLE_BIT)

fixed the block outline color though, thanks!

 

But I still have an issue with the lighting on the quads being incorrect.

1) Where do  you pop your matrix?

2) Maybe using

glPushAttrib

and

glPopAttrib

will help.

 

1) I trimmed it (there's about 12 lines I removed, checking for various things).  I know about push/pop.  In retrospect I should have left that in.

2)

GL11.glPushAttrib(GL11.GL_ENABLE_BIT)

fixed the block outline color though, thanks!

 

But I still have an issue with the lighting on the quads being incorrect.

 

For the light I'd suggest using

OpenGlHelper.setLightmapTextureCoords()

:

// save the previous lighting brightness
            float prevBrightX = OpenGlHelper.lastBrightnessX;
            float prevBrightY = OpenGlHelper.lastBrightnessY;
// declare new brightness (0xF0 is the max. possible)
            int bright = 0xF0;
            int brightX = bright % 65536;
            int brightY = bright / 65536;
// set new brightness
            OpenGlHelper.setLightmapTextureCoords(OpenGlHelper.lightmapTexUnit, brightX / 1.0F, brightY / 1.0F);

// do rendering here


// reset original brightness, so it doesn't mess up anything post-rendered
            OpenGlHelper.setLightmapTextureCoords(OpenGlHelper.lightmapTexUnit, prevBrightX, prevBrightY);

Nope, didn't help. :\

 

I'm using the Tessellator for drawing, btw.  And I've already got

tess.setBrightness(15728880)

, but it hasn't made a difference either.

Hi Draco

 

You could try calling             

GL11.glColor4f(colour.R, colour.G, colour.B, colour.A);

instead of

tess.setColorOpaque_F(1F, 0F, 0F);

 

That fixed a similar problem I had once before.

 

-TGG

 

You could try calling             

GL11.glColor4f(colour.R, colour.G, colour.B, colour.A);

instead of

tess.setColorOpaque_F(1F, 0F, 0F);

 

Calling tess.setColor...no good

Calling tess.setColor and GL11.glColor...no good

Calling GL11.glColor...no good

 

:\

Ah... your code triggers a ghost of a memory... let me check...

 

Try this:

		Tessellator tess = Tessellator.instance;
	tess.startDrawing(7);                                        //swap order
                tess.setBrightness(15728880);

    public void startDrawing(int p_78371_1_)
    {
        if (this.isDrawing)
        {
            throw new IllegalStateException("Already tesselating!");
        }
        else
        {
            this.isDrawing = true;
            this.reset();
            this.drawMode = p_78371_1_;
            this.hasNormals = false;
            this.hasColor = false;
            this.hasTexture = false;
            this.hasBrightness = false;
            this.isColorDisabled = false;
        }
    }

-TGG

Nope.  And I managed to dredge up an older post of my own that gave me what I needed, albeit in decimal format.

 

glDisable(GL_TEXTURE_2D);