HdSt_GeometricShader Class Reference

#include <geometricShader.h>

Inheritance diagram for HdSt_GeometricShader:

Public Types
enum	PrimitiveType {   PrimitiveType::PRIM_POINTS, PrimitiveType::PRIM_BASIS_CURVES_LINES, PrimitiveType::PRIM_BASIS_CURVES_LINEAR_PATCHES, PrimitiveType::PRIM_BASIS_CURVES_CUBIC_PATCHES,   PrimitiveType::PRIM_MESH_COARSE_TRIANGLES, PrimitiveType::PRIM_MESH_REFINED_TRIANGLES, PrimitiveType::PRIM_MESH_COARSE_QUADS, PrimitiveType::PRIM_MESH_REFINED_QUADS,   PrimitiveType::PRIM_MESH_BSPLINE, PrimitiveType::PRIM_MESH_BOXSPLINETRIANGLE, PrimitiveType::PRIM_VOLUME }
	Used in HdSt_CodeGen to generate the appropriate shader source. More...
enum	FvarPatchType {   FvarPatchType::PATCH_COARSE_TRIANGLES, FvarPatchType::PATCH_REFINED_TRIANGLES, FvarPatchType::PATCH_COARSE_QUADS, FvarPatchType::PATCH_REFINED_QUADS,   FvarPatchType::PATCH_BSPLINE, FvarPatchType::PATCH_BOXSPLINETRIANGLE, FvarPatchType::PATCH_NONE }
Public Types inherited from HdStShaderCode
typedef size_t	ID
using	NamedTextureHandleVector = std::vector< NamedTextureHandle >

Public Member Functions
HDST_API	HdSt_GeometricShader (std::string const &glslfxString, PrimitiveType primType, HdCullStyle cullStyle, bool useHardwareFaceCulling, bool hasMirroredTransform, bool doubleSided, HdPolygonMode polygonMode, bool cullingPass, FvarPatchType fvarPatchType, SdfPath const &debugId=SdfPath(), float lineWidth=0)
HDST_API	~HdSt_GeometricShader () override
HDST_API ID	ComputeHash () const override
HDST_API std::string	GetSource (TfToken const &shaderStageKey) const override
HDST_API void	BindResources (int program, HdSt_ResourceBinder const &binder, HdRenderPassState const &state) override
HDST_API void	UnbindResources (int program, HdSt_ResourceBinder const &binder, HdRenderPassState const &state) override
	Unbinds shader-specific resources. More...
HDST_API void	AddBindings (HdBindingRequestVector *customBindings) override
	Add custom bindings (used by codegen) More...
bool	IsFrustumCullingPass () const
	Returns true if this geometric shader is used for GPU frustum culling. More...
PrimitiveType	GetPrimitiveType () const
bool	IsPrimTypePoints () const
	member query functions for PrimitiveType More...
bool	IsPrimTypeBasisCurves () const
bool	IsPrimTypeMesh () const
bool	IsPrimTypeTriangles () const
bool	IsPrimTypeQuads () const
bool	IsPrimTypePatches () const
FvarPatchType	GetFvarPatchType () const
HDST_API GLenum	GetPrimitiveMode () const
	Return the GL primitive type of the draw item based on _primType. More...
HDST_API int	GetPrimitiveIndexSize () const
HDST_API int	GetNumPatchEvalVerts () const
HDST_API int	GetNumPrimitiveVertsForGeometryShader () const
Public Member Functions inherited from HdStShaderCode
HDST_API	HdStShaderCode ()
virtual HDST_API	~HdStShaderCode ()
virtual ID	ComputeTextureSourceHash () const
virtual HDST_API HdSt_MaterialParamVector const &	GetParams () const
	Returns the shader parameters for this shader. More...
virtual HDST_API bool	IsEnabledPrimvarFiltering () const
	Returns whether primvar filtering is enabled for this shader. More...
virtual HDST_API TfTokenVector const &	GetPrimvarNames () const
	Returns the names of primvar that are used by this shader. More...
virtual HDST_API HdBufferArrayRangeSharedPtr const &	GetShaderData () const
virtual HDST_API TfToken	GetMaterialTag () const
virtual HDST_API void	AddResourcesFromTextures (ResourceContext &ctx) const
virtual HDST_API NamedTextureHandleVector const &	GetNamedTextureHandles () const

Static Public Member Functions
static bool	IsPrimTypePoints (PrimitiveType primType)
	static query functions for PrimitiveType More...
static bool	IsPrimTypeBasisCurves (PrimitiveType primType)
static bool	IsPrimTypeMesh (PrimitiveType primType)
static bool	IsPrimTypeTriangles (PrimitiveType primType)
static bool	IsPrimTypeQuads (PrimitiveType primType)
static bool	IsPrimTypeRefinedMesh (PrimitiveType primType)
static bool	IsPrimTypePatches (PrimitiveType primType)
static HdSt_GeometricShaderSharedPtr	Create (HdSt_ShaderKey const &shaderKey, HdStResourceRegistrySharedPtr const &resourceRegistry)
Static Public Member Functions inherited from HdStShaderCode
static HDST_API ID	ComputeHash (HdStShaderCodeSharedPtrVector const &shaders)
	Returns the combined hash values of multiple shaders. More...

Detailed Description

Storm breaks down the concept of a shader program into distinct conceptual pieces that are then stitched together during code generation. The pieces are: (i) geometric shader (ii) material shader (iii) lighting shader (iv) render pass shader

The geometric shader contains the entry points for the relevant shader stages and uses geometry opinions (such as cullstyle, double sided, etc) to generate shader code variants via mixins.

Definition at line 59 of file geometricShader.h.

Member Enumeration Documentation

enum HdSt_GeometricShader::FvarPatchType

strong

Enumerator
PATCH_COARSE_TRIANGLES
PATCH_REFINED_TRIANGLES
PATCH_COARSE_QUADS
PATCH_REFINED_QUADS
PATCH_BSPLINE
PATCH_BOXSPLINETRIANGLE
PATCH_NONE

Definition at line 123 of file geometricShader.h.

enum HdSt_GeometricShader::PrimitiveType

strong

Used in HdSt_CodeGen to generate the appropriate shader source.

Enumerator
PRIM_POINTS
PRIM_BASIS_CURVES_LINES
PRIM_BASIS_CURVES_LINEAR_PATCHES
PRIM_BASIS_CURVES_CUBIC_PATCHES
PRIM_MESH_COARSE_TRIANGLES
PRIM_MESH_REFINED_TRIANGLES
PRIM_MESH_COARSE_QUADS
PRIM_MESH_REFINED_QUADS
PRIM_MESH_BSPLINE
PRIM_MESH_BOXSPLINETRIANGLE
PRIM_VOLUME

Definition at line 62 of file geometricShader.h.

Constructor & Destructor Documentation

HDST_API HdSt_GeometricShader::HdSt_GeometricShader	(	std::string const &	glslfxString,
		PrimitiveType	primType,
		HdCullStyle	cullStyle,
		bool	useHardwareFaceCulling,
		bool	hasMirroredTransform,
		bool	doubleSided,
		HdPolygonMode	polygonMode,
		bool	cullingPass,
		FvarPatchType	fvarPatchType,
		SdfPath const &	debugId = SdfPath(),
		float	lineWidth = 0
	)

HDST_API HdSt_GeometricShader::~HdSt_GeometricShader ( )

override

Member Function Documentation

HDST_API void HdSt_GeometricShader::AddBindings ( HdBindingRequestVector *  customBindings )

overridevirtual

Add custom bindings (used by codegen)

Implements HdStShaderCode.

HDST_API void HdSt_GeometricShader::BindResources ( int  program, HdSt_ResourceBinder const &  binder, HdRenderPassState const &  state  )

overridevirtual

Binds shader-specific resources to program XXX: this interface is meant to be used for bridging the GlfSimpleLightingContext mechanism, and not for generic use-cases.

Implements HdStShaderCode.

HDST_API ID HdSt_GeometricShader::ComputeHash ( ) const

overridevirtual

Returns the hash value of the shader code and configuration.

It is computed from the the GLSL code as well as the resource signature of the shader (as determined from its parameters). If two shaders have the same hash, the GLSL code as expanded by codegen should also be the same.

Implements HdStShaderCode.

static HdSt_GeometricShaderSharedPtr HdSt_GeometricShader::Create ( HdSt_ShaderKey const &  shaderKey, HdStResourceRegistrySharedPtr const &  resourceRegistry  )

static

FvarPatchType HdSt_GeometricShader::GetFvarPatchType ( ) const

inline

Definition at line 200 of file geometricShader.h.

HDST_API int HdSt_GeometricShader::GetNumPatchEvalVerts

(

)

const

HDST_API int HdSt_GeometricShader::GetNumPrimitiveVertsForGeometryShader

(

)

const

HDST_API int HdSt_GeometricShader::GetPrimitiveIndexSize

(

)

const

HDST_API GLenum HdSt_GeometricShader::GetPrimitiveMode

(

)

const

Return the GL primitive type of the draw item based on _primType.

PrimitiveType HdSt_GeometricShader::GetPrimitiveType ( ) const

inline

Definition at line 171 of file geometricShader.h.

HDST_API std::string HdSt_GeometricShader::GetSource ( TfToken const &  shaderStageKey ) const

overridevirtual

Returns the shader source provided by this shader for shaderStageKey

Implements HdStShaderCode.

bool HdSt_GeometricShader::IsFrustumCullingPass ( ) const

inline

Returns true if this geometric shader is used for GPU frustum culling.

Definition at line 167 of file geometricShader.h.

static bool HdSt_GeometricShader::IsPrimTypeBasisCurves ( PrimitiveType  primType )

inlinestatic

Definition at line 82 of file geometricShader.h.

bool HdSt_GeometricShader::IsPrimTypeBasisCurves ( ) const

inline

Definition at line 180 of file geometricShader.h.

static bool HdSt_GeometricShader::IsPrimTypeMesh ( PrimitiveType  primType )

inlinestatic

Definition at line 88 of file geometricShader.h.

bool HdSt_GeometricShader::IsPrimTypeMesh ( ) const

inline

Definition at line 184 of file geometricShader.h.

static bool HdSt_GeometricShader::IsPrimTypePatches ( PrimitiveType  primType )

inlinestatic

Definition at line 115 of file geometricShader.h.

bool HdSt_GeometricShader::IsPrimTypePatches ( ) const

inline

Definition at line 196 of file geometricShader.h.

static bool HdSt_GeometricShader::IsPrimTypePoints ( PrimitiveType  primType )

inlinestatic

static query functions for PrimitiveType

Definition at line 78 of file geometricShader.h.

bool HdSt_GeometricShader::IsPrimTypePoints ( ) const

inline

member query functions for PrimitiveType

Definition at line 176 of file geometricShader.h.

static bool HdSt_GeometricShader::IsPrimTypeQuads ( PrimitiveType  primType )

inlinestatic

Definition at line 103 of file geometricShader.h.

bool HdSt_GeometricShader::IsPrimTypeQuads ( ) const

inline

Definition at line 192 of file geometricShader.h.

static bool HdSt_GeometricShader::IsPrimTypeRefinedMesh ( PrimitiveType  primType )

inlinestatic

Definition at line 108 of file geometricShader.h.

static bool HdSt_GeometricShader::IsPrimTypeTriangles ( PrimitiveType  primType )

inlinestatic

Definition at line 97 of file geometricShader.h.

bool HdSt_GeometricShader::IsPrimTypeTriangles ( ) const

inline

Definition at line 188 of file geometricShader.h.

HDST_API void HdSt_GeometricShader::UnbindResources ( int  program, HdSt_ResourceBinder const &  binder, HdRenderPassState const &  state  )

overridevirtual

Unbinds shader-specific resources.

Implements HdStShaderCode.

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

• pxr/imaging/hdSt/geometricShader.h