Example usage for org.lwjgl.opengl GL11 glScalef

Introduction

In this page you can find the example usage for org.lwjgl.opengl GL11 glScalef.

Prototype

public static native void glScalef(@NativeType("GLfloat") float x, @NativeType("GLfloat") float y,
        @NativeType("GLfloat") float z);

Source Link

Document

Manipulates the current matrix with a general scaling matrix along the x-, y- and z- axes.

Usage

From source file:buildcraft.transport.render.GateItemRenderer.java

License:Minecraft Mod Public

private void renderIn3D(ItemStack stack) {
    GL11.glPushMatrix();/* w w  w. j  av a 2  s  . c om*/

    renderLayerIn3D(ItemGate.getLogic(stack).getIconItem());
    GL11.glScalef(1, 1, 1.05f);
    renderLayerIn3D(ItemGate.getMaterial(stack).getIconItem());

    for (IGateExpansion expansion : ItemGate.getInstalledExpansions(stack)) {
        renderLayerIn3D(expansion.getOverlayItem());
    }

    GL11.glPopMatrix();
}

---

From source file:buildcraft.transport.render.GateItemRenderer.java

License:Minecraft Mod Public

private void renderAsEntityFlat(ItemStack stack) {
    GL11.glPushMatrix();/*w w  w  .  j a v a2s .c  om*/
    byte iterations = 1;
    if (stack.stackSize > 1) {
        iterations = 2;
    }
    if (stack.stackSize > 15) {
        iterations = 3;
    }
    if (stack.stackSize > 31) {
        iterations = 4;
    }

    Random rand = new Random(187L);

    for (int ii = 0; ii < iterations; ++ii) {
        GL11.glPushMatrix();
        GL11.glRotatef(180.0F, 0.0F, 1.0F, 0.0F);
        GL11.glRotatef(180 - RenderManager.instance.playerViewY, 0.0F, 1.0F, 0.0F);

        if (ii > 0) {
            float var12 = (rand.nextFloat() * 2.0F - 1.0F) * 0.3F;
            float var13 = (rand.nextFloat() * 2.0F - 1.0F) * 0.3F;
            float var14 = (rand.nextFloat() * 2.0F - 1.0F) * 0.3F;
            GL11.glTranslatef(var12, var13, var14);
        }

        GL11.glTranslatef(0.5f, 0.8f, 0);
        GL11.glRotatef(180.0F, 0.0F, 0.0F, 1.0F);
        GL11.glScalef(1f / 16f, 1f / 16f, 1);

        render(ItemRenderType.ENTITY, stack);
        GL11.glPopMatrix();
    }
    GL11.glPopMatrix();
}

---

From source file:buildcraft.transport.render.PipeRendererTESR.java

License:Minecraft Mod Public

private void pipeWireRender(TileGenericPipe pipe, float cx, float cy, float cz, PipeWire color, double x,
        double y, double z) {

    PipeRenderState state = pipe.renderState;

    float minX = CoreConstants.PIPE_MIN_POS;
    float minY = CoreConstants.PIPE_MIN_POS;
    float minZ = CoreConstants.PIPE_MIN_POS;

    float maxX = CoreConstants.PIPE_MAX_POS;
    float maxY = CoreConstants.PIPE_MAX_POS;
    float maxZ = CoreConstants.PIPE_MAX_POS;

    boolean foundX = false, foundY = false, foundZ = false;

    if (state.wireMatrix.isWireConnected(color, ForgeDirection.WEST)) {
        minX = 0;// w w w .j  a  va  2s.  c om
        foundX = true;
    }

    if (state.wireMatrix.isWireConnected(color, ForgeDirection.EAST)) {
        maxX = 1;
        foundX = true;
    }

    if (state.wireMatrix.isWireConnected(color, ForgeDirection.DOWN)) {
        minY = 0;
        foundY = true;
    }

    if (state.wireMatrix.isWireConnected(color, ForgeDirection.UP)) {
        maxY = 1;
        foundY = true;
    }

    if (state.wireMatrix.isWireConnected(color, ForgeDirection.NORTH)) {
        minZ = 0;
        foundZ = true;
    }

    if (state.wireMatrix.isWireConnected(color, ForgeDirection.SOUTH)) {
        maxZ = 1;
        foundZ = true;
    }

    boolean center = false;

    if (minX == 0 && maxX != 1 && (foundY || foundZ)) {
        if (cx == CoreConstants.PIPE_MIN_POS) {
            maxX = CoreConstants.PIPE_MIN_POS;
        } else {
            center = true;
        }
    }

    if (minX != 0 && maxX == 1 && (foundY || foundZ)) {
        if (cx == CoreConstants.PIPE_MAX_POS) {
            minX = CoreConstants.PIPE_MAX_POS;
        } else {
            center = true;
        }
    }

    if (minY == 0 && maxY != 1 && (foundX || foundZ)) {
        if (cy == CoreConstants.PIPE_MIN_POS) {
            maxY = CoreConstants.PIPE_MIN_POS;
        } else {
            center = true;
        }
    }

    if (minY != 0 && maxY == 1 && (foundX || foundZ)) {
        if (cy == CoreConstants.PIPE_MAX_POS) {
            minY = CoreConstants.PIPE_MAX_POS;
        } else {
            center = true;
        }
    }

    if (minZ == 0 && maxZ != 1 && (foundX || foundY)) {
        if (cz == CoreConstants.PIPE_MIN_POS) {
            maxZ = CoreConstants.PIPE_MIN_POS;
        } else {
            center = true;
        }
    }

    if (minZ != 0 && maxZ == 1 && (foundX || foundY)) {
        if (cz == CoreConstants.PIPE_MAX_POS) {
            minZ = CoreConstants.PIPE_MAX_POS;
        } else {
            center = true;
        }
    }

    boolean found = foundX || foundY || foundZ;

    GL11.glPushMatrix();
    GL11.glPushAttrib(GL11.GL_ENABLE_BIT);
    GL11.glEnable(GL11.GL_LIGHTING);
    GL11.glDisable(GL11.GL_BLEND);
    GL11.glEnable(GL11.GL_CULL_FACE);
    RenderHelper.disableStandardItemLighting();

    GL11.glColor3f(1, 1, 1);
    GL11.glTranslatef((float) x, (float) y, (float) z);

    float scale = 1.001f;
    GL11.glTranslatef(0.5F, 0.5F, 0.5F);
    GL11.glScalef(scale, scale, scale);
    GL11.glTranslatef(-0.5F, -0.5F, -0.5F);

    bindTexture(TextureMap.locationBlocksTexture);

    RenderInfo renderBox = new RenderInfo();
    renderBox.texture = BuildCraftTransport.instance.wireIconProvider
            .getIcon(state.wireMatrix.getWireIconIndex(color));

    // Z render

    if (minZ != CoreConstants.PIPE_MIN_POS || maxZ != CoreConstants.PIPE_MAX_POS || !found) {
        renderBox.setBounds(cx == CoreConstants.PIPE_MIN_POS ? cx - 0.05F : cx,
                cy == CoreConstants.PIPE_MIN_POS ? cy - 0.05F : cy, minZ,
                cx == CoreConstants.PIPE_MIN_POS ? cx : cx + 0.05F,
                cy == CoreConstants.PIPE_MIN_POS ? cy : cy + 0.05F, maxZ);
        RenderEntityBlock.INSTANCE.renderBlock(renderBox, pipe.getWorldObj(), 0, 0, 0, pipe.xCoord, pipe.yCoord,
                pipe.zCoord, true, true);
    }

    // X render

    if (minX != CoreConstants.PIPE_MIN_POS || maxX != CoreConstants.PIPE_MAX_POS || !found) {
        renderBox.setBounds(minX, cy == CoreConstants.PIPE_MIN_POS ? cy - 0.05F : cy,
                cz == CoreConstants.PIPE_MIN_POS ? cz - 0.05F : cz, maxX,
                cy == CoreConstants.PIPE_MIN_POS ? cy : cy + 0.05F,
                cz == CoreConstants.PIPE_MIN_POS ? cz : cz + 0.05F);
        RenderEntityBlock.INSTANCE.renderBlock(renderBox, pipe.getWorldObj(), 0, 0, 0, pipe.xCoord, pipe.yCoord,
                pipe.zCoord, true, true);
    }

    // Y render

    if (minY != CoreConstants.PIPE_MIN_POS || maxY != CoreConstants.PIPE_MAX_POS || !found) {
        renderBox.setBounds(cx == CoreConstants.PIPE_MIN_POS ? cx - 0.05F : cx, minY,
                cz == CoreConstants.PIPE_MIN_POS ? cz - 0.05F : cz,
                cx == CoreConstants.PIPE_MIN_POS ? cx : cx + 0.05F, maxY,
                cz == CoreConstants.PIPE_MIN_POS ? cz : cz + 0.05F);
        RenderEntityBlock.INSTANCE.renderBlock(renderBox, pipe.getWorldObj(), 0, 0, 0, pipe.xCoord, pipe.yCoord,
                pipe.zCoord, true, true);
    }

    if (center || !found) {
        renderBox.setBounds(cx == CoreConstants.PIPE_MIN_POS ? cx - 0.05F : cx,
                cy == CoreConstants.PIPE_MIN_POS ? cy - 0.05F : cy,
                cz == CoreConstants.PIPE_MIN_POS ? cz - 0.05F : cz,
                cx == CoreConstants.PIPE_MIN_POS ? cx : cx + 0.05F,
                cy == CoreConstants.PIPE_MIN_POS ? cy : cy + 0.05F,
                cz == CoreConstants.PIPE_MIN_POS ? cz : cz + 0.05F);
        RenderEntityBlock.INSTANCE.renderBlock(renderBox, pipe.getWorldObj(), 0, 0, 0, pipe.xCoord, pipe.yCoord,
                pipe.zCoord, true, true);
    }

    RenderHelper.enableStandardItemLighting();

    GL11.glPopAttrib();
    GL11.glPopMatrix();
}

---

From source file:buildcraft.transport.render.PipeRendererTESR.java

License:Minecraft Mod Public

private void renderPower(Pipe<PipeTransportPower> pipe, double x, double y, double z) {
    initializeDisplayPowerList(pipe.container.getWorldObj());

    PipeTransportPower pow = pipe.transport;

    GL11.glPushMatrix();//from w  w w  .  ja  v a 2  s  . c  o m
    GL11.glPushAttrib(GL11.GL_ENABLE_BIT);
    GL11.glDisable(GL11.GL_LIGHTING);
    //      GL11.glEnable(GL11.GL_BLEND);

    GL11.glTranslatef((float) x, (float) y, (float) z);

    bindTexture(TextureMap.locationBlocksTexture);

    int[] displayList = pow.overload > 0 ? displayPowerListOverload : displayPowerList;

    for (int side = 0; side < 6; ++side) {
        GL11.glPushMatrix();

        GL11.glTranslatef(0.5F, 0.5F, 0.5F);
        GL11.glRotatef(angleY[side], 0, 1, 0);
        GL11.glRotatef(angleZ[side], 0, 0, 1);
        float scale = 1.0F - side * 0.0001F;
        GL11.glScalef(scale, scale, scale);
        GL11.glTranslatef(-0.5F, -0.5F, -0.5F);

        short stage = pow.clientDisplayPower[side];
        if (stage >= 1) {
            if (stage < displayList.length) {
                GL11.glCallList(displayList[stage]);
            } else {
                GL11.glCallList(displayList[displayList.length - 1]);
            }
        }

        GL11.glPopMatrix();
    }

    /*bindTexture(STRIPES_TEXTURE);
            
    for (int side = 0; side < 6; side += 2) {
       if (pipe.container.isPipeConnected(ForgeDirection.values()[side])) {
    GL11.glPushMatrix();
            
    GL11.glTranslatef(0.5F, 0.5F, 0.5F);
            
    GL11.glRotatef(angleY[side], 0, 1, 0);
    GL11.glRotatef(angleZ[side], 0, 0, 1);
            
    float scale = 1.0F - side * 0.0001F;
    GL11.glScalef(scale, scale, scale);
            
    float movement = (0.50F) * pipe.transport.getPistonStage(side / 2);
    GL11.glTranslatef(-0.25F - 1F / 16F - movement, -0.5F, -0.5F);
            
    // float factor = (float) (1.0 / 256.0);
    float factor = (float) (1.0 / 16.0);
    box.render(factor);
    GL11.glPopMatrix();
       }
    }*/

    GL11.glPopAttrib();
    GL11.glPopMatrix();
}

---

From source file:buildcraft.transport.render.PipeRendererTESR.java

License:Minecraft Mod Public

public void doRenderItem(TravelingItem travellingItem, double x, double y, double z, float light,
        EnumColor color) {/*from w ww.  jav a  2 s.  c  om*/

    if (travellingItem == null || travellingItem.getItemStack() == null) {
        return;
    }

    float renderScale = 0.7f;
    ItemStack itemstack = travellingItem.getItemStack();
    GL11.glPushMatrix();
    GL11.glTranslatef((float) x, (float) y, (float) z);
    GL11.glTranslatef(0, 0.25F, 0);
    GL11.glScalef(renderScale, renderScale, renderScale);
    dummyEntityItem.setEntityItemStack(itemstack);
    customRenderItem.doRender(dummyEntityItem, 0, 0, 0, 0, 0);

    if (color != null) {
        bindTexture(TextureMap.locationBlocksTexture);
        RenderInfo block = new RenderInfo();

        block.texture = PipeIconProvider.TYPE.ItemBox.getIcon();

        float pix = 0.0625F;

        float min = -4 * pix;
        float max = 4 * pix;

        block.minY = min;
        block.maxY = max;

        block.minZ = min;
        block.maxZ = max;

        block.minX = min;
        block.maxX = max;

        RenderUtils.setGLColorFromInt(color.getLightHex());
        RenderEntityBlock.INSTANCE.renderBlock(block, null, 0, 0, 0, false, true);
    }

    GL11.glPopMatrix();
}

---

From source file:buildcraft.transport.render.RenderPipe.java

License:Minecraft Mod Public

public void doRenderItem(IPipedItem entityitem, double d, double d1, double d2, float f1) {

    if (entityitem == null || entityitem.getItemStack() == null)
        return;//from   ww  w  .  j  a  va  2s  .c o m

    float renderScale = 0.7f;
    ItemStack itemstack = entityitem.getItemStack();
    GL11.glPushMatrix();
    GL11.glTranslatef((float) d, (float) d1, (float) d2);
    GL11.glTranslatef(0, 0.25F, 0);
    GL11.glScalef(renderScale, renderScale, renderScale);
    dummyEntityItem.func_92058_a(itemstack);
    customRenderItem.doRenderItem(dummyEntityItem, 0, 0, 0, 0, 0);
    GL11.glPopMatrix();
}

---

From source file:buildcraft.transport.RenderPipe.java

License:Minecraft Mod Public

public void doRenderItem(IPipedItem entityitem, double d, double d1, double d2, float f1) {

    if (entityitem == null || entityitem.getItemStack() == null)
        return;//from w  w  w  .j a va  2s  .co  m

    ItemStack itemstack = entityitem.getItemStack();
    random.setSeed(187L);

    GL11.glPushMatrix();

    byte quantity = 1;
    if (entityitem.getItemStack().stackSize > 1)
        quantity = 2;

    GL11.glTranslatef((float) d, (float) d1, (float) d2);
    GL11.glEnable(32826 /* GL_RESCALE_NORMAL_EXT */);

    IItemRenderer customRenderer = MinecraftForgeClient.getItemRenderer(itemstack, ItemRenderType.ENTITY);

    if (customRenderer != null) {

        GL11.glTranslatef(0, 0.25F, 0); // BC SPECIFIC
        loadTexture("/terrain.png");
        ForgeHooksClient.overrideTexture(itemstack.getItem());
        float f4 = 0.25F;
        f4 = 0.5F;
        GL11.glScalef(f4, f4, f4);

        for (int j = 0; j < quantity; j++) {

            GL11.glPushMatrix();

            if (j > 0) {
                float f5 = ((random.nextFloat() * 2.0F - 1.0F) * 0.2F) / f4;
                float f7 = ((random.nextFloat() * 2.0F - 1.0F) * 0.2F) / f4;
                float f9 = ((random.nextFloat() * 2.0F - 1.0F) * 0.2F) / f4;
                GL11.glTranslatef(f5, f7, f9);
            }

            RenderPipe.dummyEntityItem.item = itemstack;

            customRenderer.renderItem(ItemRenderType.ENTITY, itemstack, renderBlocks,
                    RenderPipe.dummyEntityItem);
            GL11.glPopMatrix();
        }

    } else if (itemstack.itemID < Block.blocksList.length && Block.blocksList[itemstack.itemID] != null
            && RenderBlocks.renderItemIn3d(Block.blocksList[itemstack.itemID].getRenderType())) {

        GL11.glTranslatef(0, 0.25F, 0); // BC SPECIFIC
        loadTexture("/terrain.png");
        ForgeHooksClient.overrideTexture(Block.blocksList[itemstack.itemID]);
        float f4 = 0.25F;
        int j = Block.blocksList[itemstack.itemID].getRenderType();
        if (j == 1 || j == 19 || j == 12 || j == 2)
            f4 = 0.5F;

        GL11.glScalef(f4, f4, f4);
        for (int k = 0; k < quantity; k++) {
            GL11.glPushMatrix();

            if (k > 0) {
                float f6 = ((random.nextFloat() * 2.0F - 1.0F) * 0.2F) / f4;
                float f9 = ((random.nextFloat() * 2.0F - 1.0F) * 0.2F) / f4;
                float f11 = ((random.nextFloat() * 2.0F - 1.0F) * 0.2F) / f4;
                GL11.glTranslatef(f6, f9, f11);
            }

            float f7 = 1.0F;
            renderBlocks.renderBlockAsItem(Block.blocksList[itemstack.itemID], itemstack.getItemDamage(), f7);
            GL11.glPopMatrix();
        }

    } else {
        GL11.glTranslatef(0, 0.10F, 0); // BC SPECIFIC

        if (itemstack.getItem().requiresMultipleRenderPasses()) {
            GL11.glScalef(0.5F, 0.5F, 0.5F);
            this.loadTexture(ForgeHooksClient.getTexture("/gui/items.png", Item.itemsList[itemstack.itemID]));

            for (int i = 0; i <= 1; ++i) {
                int iconIndex = itemstack.getItem().getIconFromDamageForRenderPass(itemstack.getItemDamage(),
                        i);
                float scale = 1.0F;

                if (true) {
                    int var17 = Item.itemsList[itemstack.itemID].getColorFromDamage(itemstack.getItemDamage(),
                            i);
                    float var18 = (var17 >> 16 & 255) / 255.0F;
                    float var19 = (var17 >> 8 & 255) / 255.0F;
                    float var20 = (var17 & 255) / 255.0F;
                    GL11.glColor4f(var18 * scale, var19 * scale, var20 * scale, 1.0F);
                }

                this.drawItem(iconIndex, quantity);
            }
        } else {

            GL11.glScalef(0.5F, 0.5F, 0.5F);
            int i = itemstack.getIconIndex();
            if (itemstack.itemID < Block.blocksList.length && Block.blocksList[itemstack.itemID] != null) {
                loadTexture("/terrain.png");
                ForgeHooksClient.overrideTexture(Block.blocksList[itemstack.itemID]);
            } else {
                loadTexture("/gui/items.png");
                ForgeHooksClient.overrideTexture(Item.itemsList[itemstack.itemID]);
            }

            drawItem(i, quantity);
        }

    }
    GL11.glDisable(32826 /* GL_RESCALE_NORMAL_EXT */);
    GL11.glPopMatrix();
}

---

From source file:ccm.burialservices.client.renderers.GraveRenderer.java

License:Open Source License

@Override
public void renderTileEntityAt(TileEntity tileentity, double x, double y, double z, float tickTime) {
    GraveTE te = (GraveTE) tileentity;/*from   www.j  a va  2  s .  co  m*/

    GL11.glPushMatrix();
    GL11.glTranslated(x, y, z); //Center to block

    ResourceLocation skin = te.getLocationSkin();

    float f5 = 0.9F;
    float f6 = 0.0625F;

    switch (te.getBlockMetadata()) {
    case 0:
        break;
    case 1:
        GL11.glRotatef(90F, 0.0F, 1.0F, 0.0F);
        GL11.glTranslated(-1, 0, 0);
        break;
    case 2:
        GL11.glRotatef(180F, 0.0F, 1.0F, 0.0F);
        GL11.glTranslated(-1, 0, -1);
        break;
    case 3:
        GL11.glRotatef(-90F, 0.0F, 1.0F, 0.0F);
        GL11.glTranslated(0, 0, -1);
        break;
    }

    GL11.glTranslated(0.5, 0.1d, 0.5);
    GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
    GL11.glScalef(f6, f6, f6);

    Minecraft.getMinecraft().renderEngine.bindTexture(skin);

    GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
    GL11.glRotatef(90F, 1.0F, 0.0F, 0.0F);

    MODEL_BIPED.bipedHead.rotateAngleX = (float) Math.toRadians(15F);
    MODEL_BIPED.bipedHead.render(f5);
    MODEL_BIPED.bipedBody.render(f5);
    MODEL_BIPED.bipedRightArm.render(f5);
    MODEL_BIPED.bipedLeftArm.render(f5);
    MODEL_BIPED.bipedRightLeg.render(f5);
    MODEL_BIPED.bipedLeftLeg.render(f5);

    GL11.glPopMatrix();

    ItemStack is = te.getHolding();
    if (is != null) {
        renderItemHolding(0, te.getBlockMetadata(), is, x, y, z, tickTime);
        if (is.getItem().requiresMultipleRenderPasses()) {
            for (int i = 1; i < is.getItem().getRenderPasses(is.getItemDamage()); i++) {
                renderItemHolding(i, te.getBlockMetadata(), is, x, y, z, tickTime);
            }
        }
    }

    renderSign(x, y, z, tickTime, te.text, te.getBlockMetadata(), is != null);
}

---

From source file:ccm.burialservices.client.renderers.GraveRenderer.java

License:Open Source License

private void renderSign(double x, double y, double z, float tickTime, String[] signText, int meta,
        boolean renderingItem) {
    if (signText.length == 0)
        return;// w  w w.ja  v a2s  . c  o m
    int i = 0;
    for (String line : signText)
        if (!Strings.isNullOrEmpty(line)) {
            i++;
        }
    if (i == 0)
        return;

    GL11.glPushMatrix();
    float f1 = 0.6666667F;
    GL11.glTranslatef((float) x + 0.5F, (float) y + 0.75F * f1, (float) z + 0.5F);
    float f2 = 0.0F;

    switch (meta) {
    case 0:
        break;
    case 1:
        f2 = 90f;
        break;
    case 2:
        f2 = 180f;
        break;
    case 3:
        f2 = -90f;

    }
    GL11.glTranslated(0, -0.3, 0);
    if (renderingItem)
        GL11.glTranslated(0, 0.03, 0);

    GL11.glRotatef(f2, 0.0F, 1.0F, 0.0F);
    GL11.glRotatef(-90F, 1.0F, 0.0F, 0.0F);
    GL11.glTranslated(0, -1.2, 0);

    GL11.glTranslatef(0.0F, -0.3125F, -0.4375F);
    GL11.glTranslatef(0f, 0.8F, 0.5f);
    MODEL_SIGN.signStick.showModel = false;

    this.bindTexture(SIGN_TEXTURE);
    GL11.glPushMatrix();
    GL11.glScalef(f1, -f1, -f1);
    MODEL_SIGN.renderSign();
    GL11.glPopMatrix();
    FontRenderer fontrenderer = this.getFontRenderer();
    f2 = 0.016666668F * f1;
    GL11.glTranslatef(0.0F, 0.5F * f1, 0.07F * f1);
    GL11.glScalef(f2, -f2, f2);
    GL11.glNormal3f(0.0F, 0.0F, -1.0F * f2);
    GL11.glDepthMask(false);
    byte b0 = 0;

    for (int j = 0; j < signText.length; ++j) {
        GL11.glPushMatrix();
        String s = signText[j];
        int width = fontrenderer.getStringWidth(s);
        if (width > 95) {
            float f = 1f - ((width) * 0.0015f);
            GL11.glScalef(f, f, f);
        }
        fontrenderer.drawString(s, -width / 2, j * 10 - 20, b0);
        GL11.glPopMatrix();
    }

    GL11.glDepthMask(true);
    GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
    GL11.glPopMatrix();
}

---

From source file:ccm.pay2spawn.util.Helper.java

License:Open Source License

public static void renderPoint(Tessellator tess, int x, int y, int z) {
    GL11.glPushMatrix();/*from   w  w  w  .  jav  a  2s . co m*/
    GL11.glTranslated(x, y, z);
    GL11.glScalef(1.01f, 1.01f, 1.01f);
    tess.startDrawing(GL11.GL_LINES);

    // FRONT
    tess.addVertex(0, 0, 0);
    tess.addVertex(0, 1, 0);

    tess.addVertex(0, 1, 0);
    tess.addVertex(1, 1, 0);

    tess.addVertex(1, 1, 0);
    tess.addVertex(1, 0, 0);

    tess.addVertex(1, 0, 0);
    tess.addVertex(0, 0, 0);

    // BACK
    tess.addVertex(0, 0, -1);
    tess.addVertex(0, 1, -1);
    tess.addVertex(0, 0, -1);
    tess.addVertex(1, 0, -1);
    tess.addVertex(1, 0, -1);
    tess.addVertex(1, 1, -1);
    tess.addVertex(0, 1, -1);
    tess.addVertex(1, 1, -1);

    // betweens.
    tess.addVertex(0, 0, 0);
    tess.addVertex(0, 0, -1);

    tess.addVertex(0, 1, 0);
    tess.addVertex(0, 1, -1);

    tess.addVertex(1, 0, 0);
    tess.addVertex(1, 0, -1);

    tess.addVertex(1, 1, 0);
    tess.addVertex(1, 1, -1);

    tess.draw();
    GL11.glPopMatrix();
}

---

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