RenderContext (jMonkeyEngine3)

java.lang.Object
- com.jme3.renderer.RenderContext

```
public class RenderContext
extends java.lang.Object
```
Represents the current state of the graphics library. This class is used internally to reduce state changes. NOTE: This class is specific to OpenGL.

Field Summary

Fields
Modifier and Type	Field and Description
`RenderState.TestFunction`	`alphaFunc` Alpha test function.
`IDList`	`attribIndexList` IDList for vertex attributes.
`RenderState.StencilOperation`	`backStencilDepthFailOperation` Action taken when the stencil test passes but the depth test fails on a back-facing polygon.
`RenderState.StencilOperation`	`backStencilDepthPassOperation` Action taken when both tests pass on a back-facing polygon.
`RenderState.TestFunction`	`backStencilFunction` Stencil test function for back-facing polygons.
`RenderState.StencilOperation`	`backStencilStencilFailOperation` Action taken when the stencil test fails on a back-facing polygon.
`RenderState.BlendEquation`	`blendEquation` RGB blend equation for BlendMode.Custom.
`RenderState.BlendEquationAlpha`	`blendEquationAlpha` Alpha blend equation for BlendMode.Custom.
`RenderState.BlendMode`	`blendMode` How to blend input pixels with those already in the color buffer.
`int`	`boundArrayVBO` Currently bound array vertex buffer.
`java.lang.ref.WeakReference<VertexBuffer>[]`	`boundAttribs` Vertex attribs currently bound and enabled.
`int`	`boundDrawBuf` Currently bound draw buffer.
`int`	`boundElementArrayVBO` Currently bound element array vertex buffer.
`FrameBuffer`	`boundFB` Currently bound FrameBuffer.
`int`	`boundFBO` ID of the bound FrameBuffer.
`int`	`boundPixelPackPBO` Currently bound pixel pack pixel buffer.
`int`	`boundRB` Currently bound Renderbuffer.
`int`	`boundReadBuf` Currently bound read buffer.
`Shader`	`boundShader` Shader for rendering.
`int`	`boundShaderProgram` ID of the shader for rendering.
`java.lang.ref.WeakReference<Image>[]`	`boundTextures` Current bound texture IDs for each texture unit.
`int`	`boundTextureUnit` Currently bound texture unit.
`int`	`boundVertexArray` ID of the bound vertex array.
`ColorRGBA`	`clearColor` Color applied when a color buffer is cleared.
`boolean`	`clipRectEnabled` Enables the clipping rectangle.
`boolean`	`colorWriteEnabled` Enables color writing.
`RenderState.FaceCullMode`	`cullMode` Criteria for culling faces.
`RenderState.TestFunction`	`depthFunc` Depth test function.
`boolean`	`depthTestEnabled` Enables depth testing for color pixels.
`boolean`	`depthWriteEnabled` Enables depth writing.
`RenderState.BlendFunc`	`dfactorAlpha` Alpha destination blend factor for BlendMode.Custom.
`RenderState.BlendFunc`	`dfactorRGB` RGB destination blend factor for BlendMode.Custom.
`RenderState.StencilOperation`	`frontStencilDepthFailOperation` Action taken when the stencil test passes but the depth test fails on a front-facing polygon.
`RenderState.StencilOperation`	`frontStencilDepthPassOperation` Action taken when both tests pass on a front-facing polygon.
`RenderState.TestFunction`	`frontStencilFunction` Stencil test function for front-facing polygons.
`RenderState.StencilOperation`	`frontStencilStencilFailOperation` Action taken when the stencil test fails on a front-facing polygon.
`int`	`initialDrawBuf` ID of the initial draw buffer.
`int`	`initialReadBuf` ID of the initial read buffer.
`float`	`lineWidth` Line width for meshes.
`static int`	`maxTextureUnits` Number of texture units that JME supports.
`int`	`numTexturesSet` No longer used.
`float`	`pointSize` No longer used.
`boolean`	`polyOffsetEnabled` Enables z-order offset for polygons.
`float`	`polyOffsetFactor` Maximum Z slope for z-order offset.
`float`	`polyOffsetUnits` Minimum resolvable depth buffer value for z-order offset.
`RenderState.BlendFunc`	`sfactorAlpha` Alpha source blend factor for BlendMode.Custom.
`RenderState.BlendFunc`	`sfactorRGB` RGB source blend factor for BlendMode.Custom.
`boolean`	`stencilTest` Stencil Buffer state.
`IDList`	`textureIndexList` IDList for texture units.
`boolean`	`wireframe` Enables wireframe rendering of triangle meshes.

Constructor Summary

Constructors
Constructor and Description

RenderContext()
Instantiates a context with appropriate default values.

Constructors
Constructor and Description
`RenderContext()` Instantiates a context with appropriate default values.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method and Description

void reset()
Resets the RenderContext to default GL state.
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`reset()` Resets the RenderContext to default GL state.

- Field Detail
  - maxTextureUnits
```
public static final int maxTextureUnits
```
    Number of texture units that JME supports.
    
    See Also:
    
    Constant Field Values
  - cullMode
```
public RenderState.FaceCullMode cullMode
```
    Criteria for culling faces.
    
    See Also:
    
    RenderState.setFaceCullMode(com.jme3.material.RenderState.FaceCullMode)
  - depthTestEnabled
```
public boolean depthTestEnabled
```
    Enables depth testing for color pixels.
    
    See Also:
    
    RenderState.setDepthTest(boolean)
  - depthWriteEnabled
```
public boolean depthWriteEnabled
```
    Enables depth writing.
    
    See Also:
    
    RenderState.setDepthWrite(boolean)
  - colorWriteEnabled
```
public boolean colorWriteEnabled
```
    Enables color writing.
    
    See Also:
    
    RenderState.setColorWrite(boolean)
  - clipRectEnabled
```
public boolean clipRectEnabled
```
    Enables the clipping rectangle.
    
    See Also:
    
    Renderer.setClipRect(int, int, int, int)
  - polyOffsetEnabled
```
public boolean polyOffsetEnabled
```
    Enables z-order offset for polygons.
    
    See Also:
    
    RenderState.setPolyOffset(float, float)
  - polyOffsetFactor
```
public float polyOffsetFactor
```
    Maximum Z slope for z-order offset.
    
    See Also:
    
    RenderState.setPolyOffset(float, float)
  - polyOffsetUnits
```
public float polyOffsetUnits
```
    Minimum resolvable depth buffer value for z-order offset.
    
    See Also:
    
    RenderState.setPolyOffset(float, float)
  - pointSize
```
public float pointSize
```
    No longer used.
  - lineWidth
```
public float lineWidth
```
    Line width for meshes.
    
    See Also:
    
    RenderState.setLineWidth(float)
  - blendMode
```
public RenderState.BlendMode blendMode
```
    How to blend input pixels with those already in the color buffer.
    
    See Also:
    
    RenderState.setBlendMode(com.jme3.material.RenderState.BlendMode)
  - blendEquation
```
public RenderState.BlendEquation blendEquation
```
    RGB blend equation for BlendMode.Custom.
    
    See Also:
    
    RenderState.setBlendEquation(com.jme3.material.RenderState.BlendEquation)
  - blendEquationAlpha
```
public RenderState.BlendEquationAlpha blendEquationAlpha
```
    Alpha blend equation for BlendMode.Custom.
    
    See Also:
    
    RenderState.setBlendEquationAlpha(com.jme3.material.RenderState.BlendEquationAlpha)
  - sfactorRGB
```
public RenderState.BlendFunc sfactorRGB
```
    RGB source blend factor for BlendMode.Custom.
    
    See Also:
    
    RenderState.setCustomBlendFactors(com.jme3.material.RenderState.BlendFunc, com.jme3.material.RenderState.BlendFunc, com.jme3.material.RenderState.BlendFunc, com.jme3.material.RenderState.BlendFunc)
  - dfactorRGB
```
public RenderState.BlendFunc dfactorRGB
```
    RGB destination blend factor for BlendMode.Custom.
    
    See Also:
    
    RenderState.setCustomBlendFactors(com.jme3.material.RenderState.BlendFunc, com.jme3.material.RenderState.BlendFunc, com.jme3.material.RenderState.BlendFunc, com.jme3.material.RenderState.BlendFunc)
  - sfactorAlpha
```
public RenderState.BlendFunc sfactorAlpha
```
    Alpha source blend factor for BlendMode.Custom.
    
    See Also:
    
    RenderState.setCustomBlendFactors(com.jme3.material.RenderState.BlendFunc, com.jme3.material.RenderState.BlendFunc, com.jme3.material.RenderState.BlendFunc, com.jme3.material.RenderState.BlendFunc)
  - dfactorAlpha
```
public RenderState.BlendFunc dfactorAlpha
```
    Alpha destination blend factor for BlendMode.Custom.
    
    See Also:
    
    RenderState.setCustomBlendFactors(com.jme3.material.RenderState.BlendFunc, com.jme3.material.RenderState.BlendFunc, com.jme3.material.RenderState.BlendFunc, com.jme3.material.RenderState.BlendFunc)
  - wireframe
```
public boolean wireframe
```
    Enables wireframe rendering of triangle meshes.
    
    See Also:
    
    RenderState.setWireframe(boolean)
  - boundShaderProgram
```
public int boundShaderProgram
```
    ID of the shader for rendering.
    
    See Also:
    
    Renderer.setShader(com.jme3.shader.Shader)
  - boundShader
```
public Shader boundShader
```
    Shader for rendering.
    
    See Also:
    
    Renderer.setShader(com.jme3.shader.Shader)
  - boundFBO
```
public int boundFBO
```
    ID of the bound FrameBuffer.
    
    See Also:
    
    Renderer.setFrameBuffer(com.jme3.texture.FrameBuffer)
  - boundFB
```
public FrameBuffer boundFB
```
    Currently bound FrameBuffer.
    
    See Also:
    
    Renderer.setFrameBuffer(com.jme3.texture.FrameBuffer)
  - boundRB
```
public int boundRB
```
    Currently bound Renderbuffer.
    
    See Also:
    
    Renderer.setFrameBuffer(com.jme3.texture.FrameBuffer)
  - boundDrawBuf
```
public int boundDrawBuf
```
    Currently bound draw buffer. -2 = GL_NONE -1 = GL_BACK 0 = GL_COLOR_ATTACHMENT0 n = GL_COLOR_ATTACHMENTn where n is an integer greater than 1
    
    See Also:
    
    Renderer.setFrameBuffer(com.jme3.texture.FrameBuffer), FrameBuffer.setTargetIndex(int)
  - boundReadBuf
```
public int boundReadBuf
```
    Currently bound read buffer.
    
    See Also:
    
    boundDrawBuf, Renderer.setFrameBuffer(com.jme3.texture.FrameBuffer), FrameBuffer.setTargetIndex(int)
  - boundElementArrayVBO
```
public int boundElementArrayVBO
```
    Currently bound element array vertex buffer.
    
    See Also:
    
    Renderer.renderMesh(com.jme3.scene.Mesh, int, int, com.jme3.scene.VertexBuffer[])
  - boundVertexArray
```
public int boundVertexArray
```
    ID of the bound vertex array.
    
    See Also:
    
    Renderer.renderMesh(com.jme3.scene.Mesh, int, int, com.jme3.scene.VertexBuffer[])
  - boundArrayVBO
```
public int boundArrayVBO
```
    Currently bound array vertex buffer.
    
    See Also:
    
    Renderer.renderMesh(com.jme3.scene.Mesh, int, int, com.jme3.scene.VertexBuffer[])
  - boundPixelPackPBO
```
public int boundPixelPackPBO
```
    Currently bound pixel pack pixel buffer.
  - numTexturesSet
```
public int numTexturesSet
```
    No longer used.
  - boundTextures
```
public final java.lang.ref.WeakReference<Image>[] boundTextures
```
    Current bound texture IDs for each texture unit.
    
    See Also:
    
    Renderer.setTexture(int, com.jme3.texture.Texture)
  - textureIndexList
```
public final IDList textureIndexList
```
    IDList for texture units.
    
    See Also:
    
    Renderer.setTexture(int, com.jme3.texture.Texture)
  - boundTextureUnit
```
public int boundTextureUnit
```
    Currently bound texture unit.
    
    See Also:
    
    Renderer.setTexture(int, com.jme3.texture.Texture)
  - stencilTest
```
public boolean stencilTest
```
    Stencil Buffer state.
  - frontStencilStencilFailOperation
```
public RenderState.StencilOperation frontStencilStencilFailOperation
```
    Action taken when the stencil test fails on a front-facing polygon.
  - frontStencilDepthFailOperation
```
public RenderState.StencilOperation frontStencilDepthFailOperation
```
    Action taken when the stencil test passes but the depth test fails on a front-facing polygon.
  - frontStencilDepthPassOperation
```
public RenderState.StencilOperation frontStencilDepthPassOperation
```
    Action taken when both tests pass on a front-facing polygon.
  - backStencilStencilFailOperation
```
public RenderState.StencilOperation backStencilStencilFailOperation
```
    Action taken when the stencil test fails on a back-facing polygon.
  - backStencilDepthFailOperation
```
public RenderState.StencilOperation backStencilDepthFailOperation
```
    Action taken when the stencil test passes but the depth test fails on a back-facing polygon.
  - backStencilDepthPassOperation
```
public RenderState.StencilOperation backStencilDepthPassOperation
```
    Action taken when both tests pass on a back-facing polygon.
  - frontStencilFunction
```
public RenderState.TestFunction frontStencilFunction
```
    Stencil test function for front-facing polygons.
  - backStencilFunction
```
public RenderState.TestFunction backStencilFunction
```
    Stencil test function for back-facing polygons.
  - boundAttribs
```
public final java.lang.ref.WeakReference<VertexBuffer>[] boundAttribs
```
    Vertex attribs currently bound and enabled. If a slot is null, then it is disabled.
  - attribIndexList
```
public final IDList attribIndexList
```
    IDList for vertex attributes.
  - depthFunc
```
public RenderState.TestFunction depthFunc
```
    Depth test function.
  - alphaFunc
```
public RenderState.TestFunction alphaFunc
```
    Alpha test function.
  - initialDrawBuf
```
public int initialDrawBuf
```
    ID of the initial draw buffer.
  - initialReadBuf
```
public int initialReadBuf
```
    ID of the initial read buffer.
  - clearColor
```
public ColorRGBA clearColor
```
    Color applied when a color buffer is cleared.
- Constructor Detail
  - RenderContext
```
public RenderContext()
```
    Instantiates a context with appropriate default values.
- Method Detail
  - reset
```
public void reset()
```
    Resets the RenderContext to default GL state.

Class RenderContext

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

maxTextureUnits

cullMode

depthTestEnabled

depthWriteEnabled

colorWriteEnabled

clipRectEnabled

polyOffsetEnabled

polyOffsetFactor

polyOffsetUnits

pointSize

lineWidth

blendMode

blendEquation

blendEquationAlpha

sfactorRGB

dfactorRGB

sfactorAlpha

dfactorAlpha

wireframe

boundShaderProgram

boundShader

boundFBO

boundFB

boundRB

boundDrawBuf

boundReadBuf

boundElementArrayVBO

boundVertexArray

boundArrayVBO

boundPixelPackPBO

numTexturesSet

boundTextures

textureIndexList

boundTextureUnit

stencilTest

frontStencilStencilFailOperation

frontStencilDepthFailOperation

frontStencilDepthPassOperation

backStencilStencilFailOperation

backStencilDepthFailOperation

backStencilDepthPassOperation

frontStencilFunction

backStencilFunction

boundAttribs

attribIndexList

depthFunc

alphaFunc

initialDrawBuf

initialReadBuf

clearColor

Constructor Detail

RenderContext

Method Detail

reset