# Visualization Library

A lightweight C++ OpenGL middleware for 2D/3D graphics

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Public Member Functions | Protected Attributes

# vl::PatchParameter Class Reference

Wrapper of glPatchParameter() - specifies the parameters for patch primitives, see also http://www.opengl.org/sdk/docs/man4/xhtml/glPatchParameter.xml. More...

`#include <PatchParameter.hpp>`

Inheritance diagram for vl::PatchParameter:

List of all members.

## Public Member Functions

virtual const char * | className ()
| Returns the name of the class.
| PatchParameter ()
| Constructor.
void | apply ()
| Applies the glPatchParameter values.
void | setPatchVertices (int vertices)
| Specifies the number of vertices that will be used to make up a single patch primitive.
int | patchVertices () const
| Returns the number of vertices that will be used to make up a single patch primitive.
void | setPatchDefaultOuterLevel (const fvec4 &level)
| The four floating-point values corresponding to the four outer tessellation levels for each subsequent patch to be used when no tessellation control shader is present.
const fvec4 & | patchDefaultOuterLevel () const
| The four floating-point values corresponding to the four outer tessellation levels for each subsequent patch to be used when no tessellation control shader is present.
void | setPatchDefaultInnerLevel (const fvec2 &level)
| The two floating-point values corresponding to the tow inner tessellation levels for each subsequent patch to be used when no tessellation control shader is present.
const fvec2 & | patchDefaultInnerLevel () const
| The two floating-point values corresponding to the tow inner tessellation levels for each subsequent patch to be used when no tessellation control shader is present.

## Protected Attributes

int | mPatchVertices
fvec4 | mPatchDefaultOuterLevel
fvec2 | mPatchDefaultInnerLevel

## Detailed Description

Wrapper of glPatchParameter() - specifies the parameters for patch primitives, see also http://www.opengl.org/sdk/docs/man4/xhtml/glPatchParameter.xml.

Definition at line 43 of file PatchParameter.hpp.

## Constructor & Destructor Documentation

vl::PatchParameter::PatchParameter | ( | ) | `[inline]`

Constructor.

Definition at line 49 of file PatchParameter.hpp.

References VL_DEBUG_SET_OBJECT_NAME.

## Member Function Documentation

virtual const char* vl::PatchParameter::className | ( | ) | `[inline, virtual]`

Returns the name of the class.

Reimplemented from vl::Object.

Definition at line 46 of file PatchParameter.hpp.

void vl::PatchParameter::apply | ( | ) | `[inline]`

Applies the glPatchParameter values.

Definition at line 55 of file PatchParameter.hpp.

References mPatchDefaultInnerLevel, mPatchDefaultOuterLevel, mPatchVertices, vl::Vector2< T_Scalar >::ptr(), vl::Vector4< T_Scalar >::ptr(), VL_CHECK, and VL_CHECK_OGL.

void vl::PatchParameter::setPatchVertices | ( | int | vertices ) | `[inline]`

Specifies the number of vertices that will be used to make up a single patch primitive.

Patch primitives are consumed by the tessellation control shader (if present) and subsequently used for tessellation. When primitives are specified using glDrawArrays or a similar function, each patch will be made from vertices control points, each represented by a vertex taken from the enabeld vertex arrays. vertices must be greater than zero, and less than or equal to the value of GL_MAX_PATCH_VERTICES.

Definition at line 72 of file PatchParameter.hpp.

References mPatchVertices.

int vl::PatchParameter::patchVertices | ( | ) | const`[inline]`

Returns the number of vertices that will be used to make up a single patch primitive.

Definition at line 75 of file PatchParameter.hpp.

References mPatchVertices.

void vl::PatchParameter::setPatchDefaultOuterLevel | ( | const fvec4 & | level ) | `[inline]`

The four floating-point values corresponding to the four outer tessellation levels for each subsequent patch to be used when no tessellation control shader is present.

Definition at line 79 of file PatchParameter.hpp.

References mPatchDefaultOuterLevel.

const fvec4& vl::PatchParameter::patchDefaultOuterLevel | ( | ) | const`[inline]`

The four floating-point values corresponding to the four outer tessellation levels for each subsequent patch to be used when no tessellation control shader is present.

Definition at line 83 of file PatchParameter.hpp.

References mPatchDefaultOuterLevel.

void vl::PatchParameter::setPatchDefaultInnerLevel | ( | const fvec2 & | level ) | `[inline]`

The two floating-point values corresponding to the tow inner tessellation levels for each subsequent patch to be used when no tessellation control shader is present.

Definition at line 87 of file PatchParameter.hpp.

References mPatchDefaultInnerLevel.

const fvec2& vl::PatchParameter::patchDefaultInnerLevel | ( | ) | const`[inline]`

The two floating-point values corresponding to the tow inner tessellation levels for each subsequent patch to be used when no tessellation control shader is present.

Definition at line 91 of file PatchParameter.hpp.

References mPatchDefaultInnerLevel.

## Member Data Documentation

int vl::PatchParameter::mPatchVertices`[protected]`

Definition at line 94 of file PatchParameter.hpp.

Referenced by apply(), patchVertices(), and setPatchVertices().

fvec4 vl::PatchParameter::mPatchDefaultOuterLevel`[protected]`

Definition at line 95 of file PatchParameter.hpp.

Referenced by apply(), patchDefaultOuterLevel(), and setPatchDefaultOuterLevel().

fvec2 vl::PatchParameter::mPatchDefaultInnerLevel`[protected]`

Definition at line 96 of file PatchParameter.hpp.

Referenced by apply(), patchDefaultInnerLevel(), and setPatchDefaultInnerLevel().

The documentation for this class was generated from the following file:

- D:/VL/BuildSystem/VL_DISTRO/Visualization_Library_SDK/src/vlGraphics/PatchParameter.hpp

Visualization Library v2011.05.1142 Reference Documentation
Copyright 2005-2011 Michele Bosi. All rights reserved.
Updated on Thu May 26 2011 22:51:42.
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