Hey Guys!

I wanted to create a renderer for a tile entity to show a title for the Block.

The Problem is that the plain face is just rendered black and the water can be seen through it.

Why?

 

(PS: The normal block isn't opaque, but I don't think that's the error)

@Override
public void renderTileEntityAt(TileEntity te, double x, double y, double z, float var8) {
	String title = ((TileEntityReadableBookshelf)te).bookTitle;
	Main.logPlainText(" " + title);

	FontRenderer fontrenderer = this.func_147498_b();
        GL11.glPushMatrix();
        GL11.glTranslatef((float)x + 0.5F, (float)y + 0.75F, (float)z + 0.5F);
        GL11.glRotatef(180, 0, 0, 1);
        GL11.glRotatef(Minecraft.getMinecraft().thePlayer.rotationYawHead, 0, 1, 0);
        GL11.glTranslatef(0.0F, 0.0F, -0.75F);
        GL11.glNormal3f(0.0F, 0.0F, 1.0F);
        GL11.glScalef(0.03F, 0.03F, 0.03F);
        GL11.glDisable(GL11.GL_LIGHTING);
        GL11.glDepthMask(false);
        GL11.glEnable(GL11.GL_BLEND);
        OpenGlHelper.glBlendFunc(770, 771, 1, 0);
        Tessellator tessellator = Tessellator.instance;
        GL11.glDisable(GL11.GL_TEXTURE_2D);
        tessellator.startDrawingQuads();
        int i = fontrenderer.getStringWidth(title) / 2;
        tessellator.setColorOpaque(255, 0, 0);      //Seems to have no effect!
        tessellator.addVertex(-i - 1, -1.0D, 0.0D);
        tessellator.addVertex(-i - 1, 8.0D, 0.0D);
        tessellator.addVertex(i + 1, 8.0D, 0.0D);
        tessellator.addVertex(i + 1, -1.0D, 0.0D);
        tessellator.draw();
        GL11.glEnable(GL11.GL_TEXTURE_2D);
        GL11.glDepthMask(true);
        tessellator.setColorOpaque_F(1.0F, 1.0F, 1.0F);  //Also no effect!
        fontrenderer.drawString(title, -fontrenderer.getStringWidth(title) / 2, 0, 16777215);
        GL11.glEnable(GL11.GL_LIGHTING);
        GL11.glDisable(GL11.GL_BLEND);
        GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
        GL11.glPopMatrix();
}

Hi

 

If you want the face to be opaque, you should turn off BLEND before rendering.

i.e.

GL11.glDisable(GL11.GL_BLEND);

You probably also don't want to disable the depth mask before rendering the face, otherwise entities that are behind the face might render over the top of it if they're drawn afterwards.

GL11.glDepthMask(true);

 

-TGG

 

 

 

OK, I changed this, but the Face is still rendered black, although I set GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);

I just copied the code from the rendering of Entity names.

 

@Override
public void renderTileEntityAt(TileEntity te, double x, double y, double z, float var8) {
	String title = ((TileEntityReadableBookshelf)te).bookTitle;

	FontRenderer fontrenderer = this.func_147498_b();
        GL11.glPushMatrix();
        GL11.glTranslatef((float)x + 0.5F, (float)y + 0.75F, (float)z + 0.5F);
        GL11.glRotatef(180, 0, 0, 1);
        GL11.glRotatef(Minecraft.getMinecraft().thePlayer.rotationYawHead, 0, 1, 0);
        GL11.glTranslatef(0.0F, 0.0F, -0.75F);
        GL11.glNormal3f(0.0F, 0.0F, 1.0F);
        GL11.glScalef(0.03F, 0.03F, 0.03F);

        GL11.glEnable(GL11.GL_ALPHA_TEST);
        GL11.glDisable(GL11.GL_LIGHTING);
        GL11.glDepthMask(false);
        GL11.glDisable(GL11.GL_DEPTH_TEST);
        GL11.glEnable(GL11.GL_BLEND);
        OpenGlHelper.glBlendFunc(770, 771, 1, 0);
        Tessellator tessellator = Tessellator.instance;
        byte b0 = 0;

        GL11.glDisable(GL11.GL_TEXTURE_2D);
        tessellator.startDrawingQuads();
        int j = fontrenderer.getStringWidth(title) / 2;
        tessellator.setColorRGBA_F(0.0F, 0.0F, 0.0F, 0.25F);
        tessellator.addVertex(-j - 1, -1 + b0, 0.0D);
        tessellator.addVertex(-j - 1, 8 + b0, 0.0D);
        tessellator.addVertex(j + 1, 8 + b0, 0.0D);
        tessellator.addVertex(j + 1, -1 + b0, 0.0D);
        tessellator.draw();
        GL11.glEnable(GL11.GL_TEXTURE_2D);
        fontrenderer.drawString(title, -fontrenderer.getStringWidth(title) / 2, b0, 553648127);
        GL11.glEnable(GL11.GL_DEPTH_TEST);
        GL11.glDepthMask(true);
        fontrenderer.drawString(title, -fontrenderer.getStringWidth(title) / 2, b0, -1);
        GL11.glEnable(GL11.GL_LIGHTING);
        GL11.glDisable(GL11.GL_BLEND);
        GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
        GL11.glPopMatrix();
}

 

 

This is the effect:

Before the line

GL11.glEnable(GL11.GL_ALPHA_TEST);

 

put this piece of code inside:

int bright = 0xF0;
int brightX = bright % 65536;
int brightY = bright / 65536;
OpenGlHelper.setLightmapTextureCoords(OpenGlHelper.lightmapTexUnit, brightX, brightY);

It should brighten your render stuff up. The bright integer can range from 0x00 (complete darkness) to 0xF0 (complete brightness).

 

If it doesn't work, put it before

tessellator.startDrawingQuads();

Before the line

GL11.glEnable(GL11.GL_ALPHA_TEST);

 

put this piece of code inside:

int bright = 0xF0;
int brightX = bright % 65536;
int brightY = bright / 65536;
OpenGlHelper.setLightmapTextureCoords(OpenGlHelper.lightmapTexUnit, brightX, brightY);

It should brighten your render stuff up. The bright integer can range from 0x00 (complete darkness) to 0xF0 (complete brightness).

 

If it doesn't work, put it before

tessellator.startDrawingQuads();

 

Works fine ! Thanks!