Package icyllis.arc3d.granite.shading

Class VaryingHandler

java.lang.Object

icyllis.arc3d.granite.shading.VaryingHandler

public class VaryingHandler
extends Object

Builds shader stage inputs and outputs.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	VaryingHandler.VaryingInfo

Field Summary

Fields

Modifier and Type	Field	Description
static final int	kCanBeFlat_Interpolation
static final int	kRequiredToBeFlat_Interpolation
static final int	kSmooth_Interpolation
protected final ArrayList<ShaderVar>	mFragInputs
protected final ShaderCaps	mShaderCaps
protected final ArrayList<VaryingHandler.VaryingInfo>	mVaryings
protected final ArrayList<ShaderVar>	mVertexOutputs

Constructor Summary

Constructors

Constructor	Description
VaryingHandler(ShaderCaps shaderCaps)

Method Summary

Modifier and Type	Method	Description
final void	addVarying(String name, byte type)	Convenience for addVarying(String, byte, int) that uses smooth or noperspective interpolation.
final void	addVarying(String name, byte type, int interpolation)	addVarying allows fine-grained control for setting up varyings between stages.
final void	finish()
final void	getFragDecls(StringBuilder inputDecls)
final void	getVertDecls(StringBuilder outputDecls)
protected void	onFinish()
final void	setNoPerspective()	Notifies the varying handler that this shader will never emit geometry in perspective and therefore does not require perspective-correct interpolation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

kSmooth_Interpolation

public static final int kSmooth_Interpolation

See Also:

• Constant Field Values

kCanBeFlat_Interpolation

public static final int kCanBeFlat_Interpolation

See Also:

• Constant Field Values

kRequiredToBeFlat_Interpolation

public static final int kRequiredToBeFlat_Interpolation

See Also:

• Constant Field Values

mVaryings

protected final ArrayList<VaryingHandler.VaryingInfo> mVaryings

mVertexOutputs

protected final ArrayList<ShaderVar> mVertexOutputs

mFragInputs

protected final ArrayList<ShaderVar> mFragInputs

mShaderCaps

protected final ShaderCaps mShaderCaps

Constructor Details

VaryingHandler

public VaryingHandler(ShaderCaps shaderCaps)

Method Details

setNoPerspective

public final void setNoPerspective()

Notifies the varying handler that this shader will never emit geometry in perspective and therefore does not require perspective-correct interpolation. When supported, this allows varyings to use the "noperspective" keyword, which means the GPU can use cheaper math for interpolation.

addVarying

public final void addVarying(String name,
 byte type)

Convenience for addVarying(String, byte, int) that uses smooth or noperspective interpolation.

addVarying

public final void addVarying(String name,
 byte type,
 int interpolation)

addVarying allows fine-grained control for setting up varyings between stages. Calling this function will make sure all necessary decls are setup for the client. The client however is responsible for setting up all shader code (e.g "vOut = vIn;") If you just need to take an attribute and pass it through to an output value in a fragment shader, use addPassThroughAttribute.

finish

public final void finish()

onFinish

protected void onFinish()

getVertDecls

public final void getVertDecls(StringBuilder outputDecls)

getFragDecls

public final void getFragDecls(StringBuilder inputDecls)