com.io7m.r2.core.shaders.types

Class R2ShaderLightVolumeSingleVerifier<M extends R2LightVolumeSingleReadableType>

java.lang.Object

com.io7m.r2.core.shaders.types.R2ShaderLightVolumeSingleVerifier<M>

Type Parameters:

M - See R2ShaderLightSingleType

All Implemented Interfaces:

com.io7m.jcanephora.core.JCGLResourceUsableType, R2DeletableType, R2ShaderLightSingleUsableType<M>, R2ShaderLightVolumeSingleType<M>, R2ShaderLightVolumeSingleUsableType<M>, R2ShaderType<M>, R2ShaderUsableType<M>

public final class R2ShaderLightVolumeSingleVerifier<M extends R2LightVolumeSingleReadableType>
extends Object
implements R2ShaderLightVolumeSingleType<M>

A verifier for single-instance volume light shaders; a type that verifies that a renderer has called all of the required methods in the correct order.

Method Summary

Modifier and Type	Method and Description
void	delete(com.io7m.jcanephora.core.api.JCGLInterfaceGL33Type g) Delete the current object.
boolean	isDeleted()
static <M extends R2LightVolumeSingleReadableType> R2ShaderLightVolumeSingleType<M>	newVerifier(R2ShaderLightVolumeSingleType<M> s) Construct a new verifier for the given shader.
void	onActivate(com.io7m.jcanephora.core.api.JCGLInterfaceGL33Type g) Activate the shader for rendering.
void	onDeactivate(com.io7m.jcanephora.core.api.JCGLInterfaceGL33Type g) Deactivate the shader.
void	onReceiveBoundGeometryBufferTextures(com.io7m.jcanephora.core.api.JCGLInterfaceGL33Type g, R2GeometryBufferUsableType gbuffer, com.io7m.jcanephora.core.JCGLTextureUnitType unit_albedo, com.io7m.jcanephora.core.JCGLTextureUnitType unit_specular, com.io7m.jcanephora.core.JCGLTextureUnitType unit_depth, com.io7m.jcanephora.core.JCGLTextureUnitType unit_normals) Set the bound geometry buffer textures for the current shader.
void	onReceiveValues(com.io7m.jcanephora.core.api.JCGLInterfaceGL33Type g, R2ShaderParametersLightType<M> light_parameters) Set light values.
void	onReceiveVolumeLightTransform(com.io7m.jcanephora.core.api.JCGLInterfaceGL33Type g, R2MatricesVolumeLightValuesType m) Set shader values that are derived from the current volume light transform.
void	onValidate() Validate the shader prior to executing a draw call.
long	shaderID()
Class<M>	shaderParametersType()
com.io7m.jcanephora.core.JCGLProgramShaderUsableType	shaderProgram()

Methods inherited from class java.lang.Object

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

Method Detail

newVerifier

public static <M extends R2LightVolumeSingleReadableType> R2ShaderLightVolumeSingleType<M> newVerifier(R2ShaderLightVolumeSingleType<M> s)

Construct a new verifier for the given shader.

Type Parameters:

M - See R2ShaderLightVolumeSingleType

Parameters:

s - The shader

Returns:

A new verifier

delete

public void delete(com.io7m.jcanephora.core.api.JCGLInterfaceGL33Type g)
            throws R2Exception

Description copied from interface: R2DeletableType

Delete the current object.

Specified by:

delete in interface R2DeletableType

Parameters:

g - An OpenGL interface

Throws:

R2Exception - On errors

isDeleted

public boolean isDeleted()

Specified by:

isDeleted in interface com.io7m.jcanephora.core.JCGLResourceUsableType

shaderID

public long shaderID()

Specified by:

shaderID in interface R2ShaderUsableType<M extends R2LightVolumeSingleReadableType>

Returns:

The unique shader ID

shaderParametersType

public Class<M> shaderParametersType()

Specified by:

shaderParametersType in interface R2ShaderUsableType<M extends R2LightVolumeSingleReadableType>

Returns:

The shader parameter type

shaderProgram

public com.io7m.jcanephora.core.JCGLProgramShaderUsableType shaderProgram()

Specified by:

shaderProgram in interface R2ShaderUsableType<M extends R2LightVolumeSingleReadableType>

Returns:

The compiled shader program

onActivate

public void onActivate(com.io7m.jcanephora.core.api.JCGLInterfaceGL33Type g)

Description copied from interface: R2ShaderUsableType

Activate the shader for rendering.

Specified by:

onActivate in interface R2ShaderUsableType<M extends R2LightVolumeSingleReadableType>

Parameters:

g - A GL interface

onValidate

public void onValidate()
                throws R2ExceptionShaderValidationFailed

Description copied from interface: R2ShaderUsableType

Validate the shader prior to executing a draw call. This method exists so that shader implementations can check that the caller has called all required methods before drawing.

Specified by:

onValidate in interface R2ShaderUsableType<M extends R2LightVolumeSingleReadableType>

Throws:

R2ExceptionShaderValidationFailed - If validation fails

onDeactivate

public void onDeactivate(com.io7m.jcanephora.core.api.JCGLInterfaceGL33Type g)

Description copied from interface: R2ShaderUsableType

Deactivate the shader.

Specified by:

onDeactivate in interface R2ShaderUsableType<M extends R2LightVolumeSingleReadableType>

Parameters:

g - A GL interface

onReceiveBoundGeometryBufferTextures

public void onReceiveBoundGeometryBufferTextures(com.io7m.jcanephora.core.api.JCGLInterfaceGL33Type g,
                                                 R2GeometryBufferUsableType gbuffer,
                                                 com.io7m.jcanephora.core.JCGLTextureUnitType unit_albedo,
                                                 com.io7m.jcanephora.core.JCGLTextureUnitType unit_specular,
                                                 com.io7m.jcanephora.core.JCGLTextureUnitType unit_depth,
                                                 com.io7m.jcanephora.core.JCGLTextureUnitType unit_normals)

Description copied from interface: R2ShaderLightSingleUsableType

Set the bound geometry buffer textures for the current shader.

This method will be called exactly once between calls to R2ShaderUsableType.onActivate(com.io7m.jcanephora.core.api.JCGLInterfaceGL33Type) and R2ShaderUsableType.onValidate().

Specified by:

onReceiveBoundGeometryBufferTextures in interface R2ShaderLightSingleUsableType<M extends R2LightVolumeSingleReadableType>

Parameters:

g - An OpenGL interface

gbuffer - The geometry buffer

unit_albedo - The texture unit to which the geometry buffer's albedo/emissive texture is bound

unit_specular - The texture unit to which the geometry buffer's specular texture is bound

unit_depth - The texture unit to which the geometry buffer's depth/stencil texture is bound

unit_normals - The texture unit to which the geometry buffer's normal

onReceiveValues

public void onReceiveValues(com.io7m.jcanephora.core.api.JCGLInterfaceGL33Type g,
                            R2ShaderParametersLightType<M> light_parameters)

Description copied from interface: R2ShaderLightSingleUsableType

Set light values.

This method will be called once for each light that uses the current shader.

This method will be called after a call to R2ShaderUsableType.onActivate(com.io7m.jcanephora.core.api.JCGLInterfaceGL33Type) and before a call to R2ShaderUsableType.onValidate().

Specified by:

onReceiveValues in interface R2ShaderLightSingleUsableType<M extends R2LightVolumeSingleReadableType>

Parameters:

g - An OpenGL interface

light_parameters - The light parameters

onReceiveVolumeLightTransform

public void onReceiveVolumeLightTransform(com.io7m.jcanephora.core.api.JCGLInterfaceGL33Type g,
                                          R2MatricesVolumeLightValuesType m)

Description copied from interface: R2ShaderLightVolumeSingleUsableType

Set shader values that are derived from the current volume light transform.

This method will be called exactly once for each light that uses the shader.

This method will be called after a call to R2ShaderUsableType.onActivate(com.io7m.jcanephora.core.api.JCGLInterfaceGL33Type) and before a call to R2ShaderUsableType.onValidate().

Specified by:

onReceiveVolumeLightTransform in interface R2ShaderLightVolumeSingleUsableType<M extends R2LightVolumeSingleReadableType>

Parameters:

g - An OpenGL interface

m - The instance matrices