---

Classes

• _global_
• Camera
• Canvas
• Color
• Engine
• Light
• Logger
• Material
• Matrix4
• MatrixStack
• Model
• Program
• ProgramAttribute
• ProgramSampler
• ProgramUniform
• Quaternion
• Renderer
• Shader
• SinglePassRenderingStrategy
• Texture
• TextureRequest
• Timer
• TransformStack
• Vector3
• WebGL
• WorkerPool
• XHRequest

---

Class TransformStack

Represents a full stack for model, view and projection matrices (OpenGL-like).
Defined in: benchgl.js.

Class Summary

Constructor Attributes	Constructor Name and Description
	TransformStack() Creates a new TransformStack.

Method Summary

Method Attributes	Method Name and Description
	getModelMatrix() Gets the current model matrix.
	getModelMatrixInverse() Gets the inverse of the current model matrix.
	getModelMatrixInverseTranspose() Gets the inverse of the transposed of the current model matrix.
	getModelMatrixTranspose() Gets the transposed version of the current model matrix.
	getModelViewMatrix() Gets the current modelView matrix.
	getModelViewMatrixInverse() Gets the inverse of the current modelView matrix.
	getModelViewMatrixInverseTranspose() Gets the inverse of the transposed of the current modelView matrix.
	getModelViewMatrixTranspose() Gets the transposed version of the current modelView matrix.
	getNormalMatrix() Gets the normal matrix (aka the inverse transpose of the modelView matrix).
	getProjectionMatrix() Gets the current projection matrix.
	getProjectionMatrixInverse() Gets the inverse of the current projection matrix.
	getProjectionMatrixInverseTranspose() Gets the inverse of the transposed of the current projection matrix.
	getProjectionMatrixTranspose() Gets the transposed version of the current projection matrix.
	getViewMatrix() Gets the current view matrix.
	getViewMatrixInverse() Gets the inverse of the current view matrix.
	getViewMatrixInverseTranspose() Gets the inverse of the transposed of the current view matrix.
	getViewMatrixTranspose() Gets the transposed version of the current view matrix.
	loadIdentity() Loads the identity on the current stack.
	lookAt(eye, direction, up) Apply a lookAt transformation to the current stack.
	model() Sets the current stack as the model stack.
	multiply(The) Multiply a matrix with the current stack.
	perspective(fovy, aspect, near, far) Apply a perspective transformation to the current stack.
	popMatrix() Pops out the matrix on top of the current stack.
	projection() Sets the current stack as the projection stack.
	pushMatrix() Push the matrix on top of the current stack.
	rotate(angle, x, y, z) Apply a rotation to the current stack.
	rotateXYZ(rx, ry, rz) Apply a rotation around x, y and z axes to the current stack.
	scale(x, y, z) Apply a scale transformation to the current stack.
	translate(x, y, z) Apply a translation to the current stack.
	view() Sets the current stack as the view stack.

Returns:

{Matrix4} The current model matrix.

---

Returns:

{Matrix4} The current model matrix inverted.

---

Returns:

{Matrix4} The current model matrix inverted transposed.

---

Returns:

{Matrix4} The current model matrix transposed.

---

Returns:

{Matrix4} The current projection matrix.

---

Returns:

{Matrix4} The current modelView matrix inverted.

---

Returns:

{Matrix4} The current modelView matrix inverted transposed.

---

Returns:

{Matrix4} The current modelView matrix transposed.

---

Returns:

{Matrix4} The current modelView matrix inverted transposed.

---

Returns:

{Matrix4} The current projection matrix.

---

Returns:

{Matrix4} The current projection matrix inverted.

---

Returns:

{Matrix4} The current projection matrix inverted transposed.

---

Returns:

{Matrix4} The current projection matrix transposed.

---

Returns:

{Matrix4} The current view matrix.

---

Returns:

{Matrix4} The current view matrix inverted.

---

Returns:

{Matrix4} The current view matrix inverted transposed.

---

Returns:

{Matrix4} The current view matrix transposed.

---

Returns:

{TransformStack} Returns this TransformStack.

---

Parameters:

{Vector3} eye

The eye vector.

{Vector3} direction

The direction vector.

{Vector3} up

The up vector.

Returns:

{TransformStack} Returns this TransformStack.

---

Returns:

{TransformStack} Returns this TransformStack.

---

Parameters:

{Matrix4} The

matrix to multiply with.

Returns:

{TransformStack} Returns this TransformStack.

---

Parameters:

{Number} fovy

The vertical field of view angle.

{Number} aspect

The aspect ratio aka the horizontal field of view angle.

{Number} near

The near clipping plane.

{Number} far

The far clipping plane.

Returns:

{TransformStack} Returns this TransformStack.

---

Returns:

{TransformStack} Returns this TransformStack.

---

Returns:

{TransformStack} Returns this TransformStack.

---

Returns:

{TransformStack} Returns this TransformStack.

---

Parameters:

{Number} angle

The rotation angle.

{Number} x

The rotation axis x coordinate.

{Number} y

The rotation axis y coordinate.

{Number} z

The rotation axis z coordinate.

Returns:

{TransformStack} Returns this TransformStack.

---

Parameters:

{Number} rx

The rotation angle around X axis.

{Number} ry

The rotation angle around Y axis.

{Number} rz

The rotation angle around Z axis.

Returns:

{TransformStack} Returns this TransformStack.

---

Parameters:

{Number} x

The x scale factor.

{Number} y

The y scale factor.

{Number} z

The z scale factor.

Returns:

{TransformStack} Returns this TransformStack.

---

Parameters:

{Number} x

The x translation factor.

{Number} y

The y translation factor.

{Number} z

The z translation factor.

Returns:

{TransformStack} Returns this TransformStack.

---

Returns:

{TransformStack} Returns this TransformStack.

---