ForgeHooksClient.java

public static void renderCameraTransformOrigin(float f, Matrix4f matrix, TransformType type)
    {
        GameSettings settings = Minecraft.getMinecraft().gameSettings;
        if (settings.showDebugInfo && !settings.hideGUI && !Minecraft.getMinecraft().thePlayer.hasReducedDebug() && !settings.reducedDebugInfo)
        {
            Entity entity = Minecraft.getMinecraft().getRenderViewEntity();
            
            
            
            GlStateManager.enableBlend();
            GlStateManager.tryBlendFuncSeparate(770, 771, 1, 0);
            GL11.glLineWidth(2.0f);
            
            GlStateManager.disableTexture2D();
            GlStateManager.depthMask(false);
            
            GlStateManager.pushMatrix();
            GlStateManager.enableTexture2D();
            GlStateManager.rotate(45, 0, -1, 0);
            GlStateManager.disableDepth();
            engine().bindTexture(new ResourceLocation("textures/font/ascii.png"));
            FontRenderer fontRenderer = Minecraft.getMinecraft().fontRendererObj;
//            fontRenderer.drawSplitString("test", 0, 0, fontRenderer.getStringWidth("test"), -16777216);
            fontRenderer.drawString("test", 0, 0, -16777216);
            GlStateManager.enableDepth();
            GlStateManager.disableTexture2D();
            GlStateManager.popMatrix();
            
            GlStateManager.pushMatrix();
            GlStateManager.matrixMode(5888);
            GlStateManager.loadIdentity();
            Minecraft.getMinecraft().entityRenderer.orientCamera(f);
            
            Vector3f translation = new Vector3f();
            matrix.get(translation);
            Quat4f rotation = new Quat4f();
            matrix.get(rotation);

            GlStateManager.translate(0, entity.getEyeHeight(), 0);
            GlStateManager.pushMatrix();
            GlStateManager.rotate(rotation.getW(), rotation.getX(), rotation.getY(), rotation.getZ());
            Vector3f rotationVec = TRSRTransformation.toYXZ(rotation);
            GlStateManager.pushMatrix();
            GL11.glPushAttrib(GL11.GL_LIGHTING_BIT);
            GL11.glDisable(GL11.GL_LIGHTING);
            renderOriginBox(0.005D, 0, 229, 255, 128);
            renderOriginLines(0.01D);
//            renderOriginText(type.name(), Float.toString(rotationVec.getX()), Float.toString(rotationVec.getY()), Float.toString(rotationVec.getZ()));
            GL11.glPopAttrib();
            GlStateManager.popMatrix();
            GlStateManager.popMatrix();
            
            GlStateManager.popMatrix();
            GlStateManager.depthMask(true);
            GlStateManager.enableTexture2D();
            engine().bindTexture(TextureMap.locationBlocksTexture);
            GlStateManager.disableBlend();
        }
    }