diff --git a/src/main/java/speiger/src/coreengine/rendering/newGui/components/base/GuiComponent.java b/src/main/java/speiger/src/coreengine/rendering/newGui/components/base/GuiComponent.java
index 083028b..c6cf34a 100644
--- a/src/main/java/speiger/src/coreengine/rendering/newGui/components/base/GuiComponent.java
+++ b/src/main/java/speiger/src/coreengine/rendering/newGui/components/base/GuiComponent.java
@@ -5,6 +5,7 @@ import java.util.function.Consumer;
 
 import speiger.src.collections.objects.lists.ObjectArrayList;
 import speiger.src.coreengine.rendering.gui.helper.box.IGuiBox;
+import speiger.src.coreengine.rendering.newGui.layout.ConstraintContainer;
 import speiger.src.coreengine.rendering.newGui.renderer.IUIRenderer;
 import speiger.src.coreengine.utils.collections.CollectionUtils;
 import speiger.src.coreengine.utils.collections.FlagObject;
@@ -17,7 +18,7 @@ public non-sealed class GuiComponent extends FlagObject implements ICastable, IL
 	private static final int FLAG_MANUAL_MANAGED = 1 << 3;
 	private static final int FLAG_SCISSORED = 1 << 4;
 	IGuiBox box;
-	Object constraints; // TODO implement
+	ConstraintContainer constraints;
 	Object animator; // TODO implement
 	GuiComponent parent;
 	List<GuiComponent> children = new ObjectArrayList<>();
@@ -102,9 +103,7 @@ public non-sealed class GuiComponent extends FlagObject implements ICastable, IL
 	
 	public void onChanged(boolean repaint) {
 		// TODO implement changes xD
-		if(constraints != null) {
-			// TODO implement constraints
-		}
+		if(constraints != null) constraints.apply(this, parent);
 		if(animator != null) {
 			// TODO implement animations;
 		}
@@ -163,7 +162,7 @@ public non-sealed class GuiComponent extends FlagObject implements ICastable, IL
 	public final GuiComponent scale(float newScale) {
 		if(newScale != box.getBaseScale()) {
 			box.setScale(newScale);
-			// TODO implement onChanged
+			onChanged(true);
 		}
 		return this;
 	}
diff --git a/src/main/java/speiger/src/coreengine/rendering/newGui/layout/ConstraintContainer.java b/src/main/java/speiger/src/coreengine/rendering/newGui/layout/ConstraintContainer.java
new file mode 100644
index 0000000..fa10830
--- /dev/null
+++ b/src/main/java/speiger/src/coreengine/rendering/newGui/layout/ConstraintContainer.java
@@ -0,0 +1,56 @@
+package speiger.src.coreengine.rendering.newGui.layout;
+
+import speiger.src.coreengine.rendering.newGui.components.base.GuiComponent;
+import speiger.src.coreengine.rendering.newGui.layout.IConstraint.Target;
+
+public class ConstraintContainer {
+	private static final int CONSTRAINT_LENGTH = 4;
+	IConstraint[] constraints = new IConstraint[CONSTRAINT_LENGTH]; 
+	
+	private ConstraintContainer() {}
+	
+	public void apply(GuiComponent owner, GuiComponent parent) {
+		for(int i = 0;i<4;i++) {
+			if(constraints[i] == null) continue;
+			constraints[i].apply(owner, parent, Target.by(i));
+		}
+	}
+	
+	public static Builder builder() { return new Builder(); }
+	public Builder copy() { return new Builder(this); }
+	
+	public static class Builder {
+		ConstraintContainer container = new ConstraintContainer();
+		
+		private Builder() {}
+		private Builder(ConstraintContainer container) {
+			System.arraycopy(container.constraints, 0, this.container.constraints, 0, CONSTRAINT_LENGTH);
+		}
+		
+		public Builder x(IConstraint value) { 
+			container.constraints[Target.X.ordinal()] = value;
+			return this;
+		} 
+		
+		public Builder y(IConstraint value) { 
+			container.constraints[Target.Y.ordinal()] = value;
+			return this;
+		} 
+		
+		public Builder width(IConstraint value) { 
+			container.constraints[Target.WIDTH.ordinal()] = value;
+			return this;
+		} 
+		
+		public Builder height(IConstraint value) { 
+			container.constraints[Target.HEIGHT.ordinal()] = value;
+			return this;
+		}
+		
+		public ConstraintContainer build() {
+			var result = container;
+			container = null;
+			return result;
+		}
+	}
+}
diff --git a/src/main/java/speiger/src/coreengine/rendering/newGui/layout/Constraints.java b/src/main/java/speiger/src/coreengine/rendering/newGui/layout/Constraints.java
new file mode 100644
index 0000000..0006d92
--- /dev/null
+++ b/src/main/java/speiger/src/coreengine/rendering/newGui/layout/Constraints.java
@@ -0,0 +1,67 @@
+package speiger.src.coreengine.rendering.newGui.layout;
+
+import java.util.function.BooleanSupplier;
+
+import speiger.src.coreengine.rendering.gui.helper.box.IGuiBox;
+import speiger.src.coreengine.rendering.newGui.components.base.GuiComponent;
+import speiger.src.coreengine.rendering.newGui.layout.IConstraint.ISimpleConstraint;
+
+public class Constraints {
+	public static record Pixels(float value, boolean inverted) implements ISimpleConstraint {
+		
+		public static Pixels of(float value) { return new Pixels(value, false); }
+		public static Pixels inverted(float value) { return new Pixels(value, true); }
+		
+		@Override
+		public void apply(IGuiBox owner, IGuiBox parent, Target target) {
+			target.set(owner, inverted ? target.asArea().get(parent) - value : value);
+		}
+	}
+	
+	public static record Parent(float padding, boolean inv) implements ISimpleConstraint {
+		
+		public static Parent of() { return new Parent(0F, false); }
+		public static Parent of(float padding) { return new Parent(padding, false); }
+		public static Parent inverted() { return new Parent(0F, true); }
+		public static Parent inverted(float padding) { return new Parent(padding, true); }
+		
+		@Override
+		public void apply(IGuiBox owner, IGuiBox parent, Target target) {
+			if(inv) target.set(owner, target.isPosition() ? target.asArea().get(parent) - padding : padding * 2);
+			else target.set(owner, target.isPosition() ? padding : target.get(parent) - padding * 2);
+		}
+	}
+	
+	public static record Relative(float value, float padding) implements ISimpleConstraint {
+		
+		public static Relative of(float value) { return new Relative(value, 0F); }
+		public static Relative of(float value, float padding) { return new Relative(value, padding); }
+		
+		@Override
+		public void apply(IGuiBox owner, IGuiBox parent, Target target) {
+			target.set(owner, value * (target.asArea().get(parent) - padding));
+		}
+	}
+	
+	public static record Center() implements ISimpleConstraint {
+		private static final Center INSTANCE = new Center();
+		
+		public static Center of() { return INSTANCE; }
+		
+		@Override
+		public void apply(IGuiBox owner, IGuiBox parent, Target target) {
+			Target bounds = target.asArea();
+			target.set(owner, (bounds.get(parent) * 0.5F) - (bounds.get(owner) * 0.5F));
+		}
+	}
+	
+	public static record Conditional(BooleanSupplier supplier, IConstraint onTrue, IConstraint onFalse) implements IConstraint {
+		
+		public static Conditional of(BooleanSupplier supplier, IConstraint onTrue, IConstraint onFalse) { return new Conditional(supplier, onTrue, onFalse); }
+		
+		@Override
+		public void apply(GuiComponent owner, GuiComponent child, Target target) {
+			(supplier.getAsBoolean() ? onTrue : onFalse).apply(owner, child, target);
+		}
+	}
+}
\ No newline at end of file
diff --git a/src/main/java/speiger/src/coreengine/rendering/newGui/layout/IConstraint.java b/src/main/java/speiger/src/coreengine/rendering/newGui/layout/IConstraint.java
new file mode 100644
index 0000000..d0f6761
--- /dev/null
+++ b/src/main/java/speiger/src/coreengine/rendering/newGui/layout/IConstraint.java
@@ -0,0 +1,78 @@
+package speiger.src.coreengine.rendering.newGui.layout;
+
+import java.util.function.BooleanSupplier;
+
+import speiger.src.coreengine.rendering.gui.helper.box.IGuiBox;
+import speiger.src.coreengine.rendering.newGui.components.base.GuiComponent;
+import speiger.src.coreengine.rendering.newGui.layout.Constraints.Center;
+import speiger.src.coreengine.rendering.newGui.layout.Constraints.Conditional;
+import speiger.src.coreengine.rendering.newGui.layout.Constraints.Parent;
+import speiger.src.coreengine.rendering.newGui.layout.Constraints.Pixels;
+import speiger.src.coreengine.rendering.newGui.layout.Constraints.Relative;
+
+public interface IConstraint {
+	public void apply(GuiComponent owner, GuiComponent child, Target target);
+	
+	
+	public static IConstraint pixels(float value) { return Pixels.of(value); }
+	public static IConstraint pixelsInv(float value) { return Pixels.inverted(value); }
+	
+	public static IConstraint parent() { return Parent.of(); }
+	public static IConstraint parent(float padding) { return Parent.of(padding); }
+	public static IConstraint parentInv() { return Parent.inverted(); }
+	public static IConstraint parentInv(float padding) { return Parent.inverted(padding); }
+	
+	public static IConstraint relative(float value) { return Relative.of(value); }
+	public static IConstraint relative(float value, float padding) { return Relative.of(value, padding); }
+	
+	public static IConstraint center() { return Center.of(); }
+	public static IConstraint conditiojnal(BooleanSupplier supplier, IConstraint onTrue, IConstraint onFalse) { return Conditional.of(supplier, onTrue, onFalse); }
+	
+	public static interface ISimpleConstraint extends IConstraint {
+		@Override
+		default void apply(GuiComponent owner, GuiComponent parent, Target target) { apply(owner.getBox(), parent.getBox(), target); }
+		public void apply(IGuiBox owner, IGuiBox parent, Target target);
+	}
+	
+	public static enum Target {
+		X,
+		Y,
+		WIDTH,
+		HEIGHT;
+		
+		static final Target[] BY_INDEX = values();
+		
+		public static Target by(int index) { return BY_INDEX[index & 3]; }
+		public static Target pos(boolean x) { return x ? X : Y; }
+		public static Target bounds(boolean x) { return x ? WIDTH : HEIGHT; }
+		public boolean isPosition() { return this == X || this == Y; }
+		public Target asArea() {
+			return switch(this) {
+				case X -> WIDTH;
+				case Y -> HEIGHT;
+				default -> this;
+			};
+		}
+		
+		public float get(GuiComponent comp) { return get(comp.getBox()); }
+		public void set(GuiComponent comp, float value) { set(comp.getBox(), value); }
+		
+		public float get(IGuiBox box) {
+			return switch(this) {
+				case X -> box.getMinX();
+				case Y -> box.getMinY();
+				case WIDTH -> box.getBaseWidth();
+				case HEIGHT -> box.getBaseHeight();
+			};
+		}
+		
+		public void set(IGuiBox box, float value) {
+			switch(this) {
+				case X -> box.setX(value);
+				case Y -> box.setY(value);
+				case WIDTH -> box.setWidth(value);
+				case HEIGHT -> box.setHeight(value);
+			}
+		}
+	}
+}
diff --git a/src/main/java/speiger/src/coreengine/rendering/tesselation/buffer/VertexBuilder.java b/src/main/java/speiger/src/coreengine/rendering/tesselation/buffer/VertexBuilder.java
index 30b0071..f3e8db1 100644
--- a/src/main/java/speiger/src/coreengine/rendering/tesselation/buffer/VertexBuilder.java
+++ b/src/main/java/speiger/src/coreengine/rendering/tesselation/buffer/VertexBuilder.java
@@ -2,6 +2,8 @@ package speiger.src.coreengine.rendering.tesselation.buffer;
 
 import java.nio.ByteBuffer;
 
+import org.lwjgl.system.MemoryUtil;
+
 import speiger.src.coreengine.rendering.tesselation.format.VertexElement;
 import speiger.src.coreengine.rendering.tesselation.format.VertexFormat;
 import speiger.src.coreengine.rendering.utils.values.GLMode;
@@ -17,7 +19,7 @@ public class VertexBuilder implements IVertexBuilder {
 	int elementBytes;
 	
 	public VertexBuilder(int size) {
-		this(ByteBuffer.allocate(size));
+		this(MemoryUtil.memAlloc(size));
 	}
 	
 	public VertexBuilder(ByteBuffer buffer) {
diff --git a/src/main/java/speiger/src/coreengine/rendering/textures/base/BaseTexture.java b/src/main/java/speiger/src/coreengine/rendering/textures/base/BaseTexture.java
index 82f7349..ef6c765 100644
--- a/src/main/java/speiger/src/coreengine/rendering/textures/base/BaseTexture.java
+++ b/src/main/java/speiger/src/coreengine/rendering/textures/base/BaseTexture.java
@@ -32,7 +32,7 @@ public abstract class BaseTexture implements ITexture {
 	}
 	
 	protected void track() {
-		GLStateTracker.instance().texture_tracker.registerTexture(this);
+		GLStateTracker.TEXTURE_TRACKER.registerTexture(this);
 	}
 	
 	@Override
@@ -49,7 +49,7 @@ public abstract class BaseTexture implements ITexture {
 	public void delete(boolean untrack) {
 		removeTexture();
 		if(untrack) {
-			GLStateTracker.instance().texture_tracker.deleteTexture(this);
+			GLStateTracker.TEXTURE_TRACKER.deleteTexture(this);
 		}
 	}
 }
diff --git a/src/main/java/speiger/src/coreengine/rendering/utils/GLStateTracker.java b/src/main/java/speiger/src/coreengine/rendering/utils/GLStateTracker.java
index 5c51d09..ca2090d 100644
--- a/src/main/java/speiger/src/coreengine/rendering/utils/GLStateTracker.java
+++ b/src/main/java/speiger/src/coreengine/rendering/utils/GLStateTracker.java
@@ -50,7 +50,7 @@ public class GLStateTracker {
 	
 	//Trackers
 	public final ShaderTracker shaders = new ShaderTracker();
-	public final TextureTracker texture_tracker = new TextureTracker();
+	public static final TextureTracker TEXTURE_TRACKER = new TextureTracker();
 	public final GlobalUniforms uniforms = new GlobalUniforms();
 	
 	public static GLStateTracker instance() {