layerNode_t Class Reference

#include <layernode.h>

Inheritance diagram for layerNode_t:

Collaboration diagram for layerNode_t:

Public Member Functions
	layerNode_t (unsigned tflag, CFLOAT col_fac, CFLOAT var_fac, CFLOAT def_val, colorA_t def_col, mix_modes mmod)
virtual void	eval (nodeStack_t &stack, const renderState_t &state, const surfacePoint_t &sp) const
virtual void	eval (nodeStack_t &stack, const renderState_t &state, const surfacePoint_t &sp, const vector3d_t &wo, const vector3d_t &wi) const
virtual void	evalDerivative (nodeStack_t &stack, const renderState_t &state, const surfacePoint_t &sp) const
virtual bool	isViewDependant () const
virtual bool	configInputs (const paraMap_t &params, const nodeFinder_t &find)
virtual bool	getDependencies (std::vector< const shaderNode_t * > &dep) const
Static Public Member Functions
static shaderNode_t *	factory (const paraMap_t &params, renderEnvironment_t &render)
Protected Attributes
const shaderNode_t *	input
const shaderNode_t *	upperLayer
unsigned int	texflag
CFLOAT	colfac
CFLOAT	valfac
CFLOAT	default_val
CFLOAT	upper_val
colorA_t	default_col
colorA_t	upper_col
mix_modes	mode
bool	do_color
bool	do_scalar
bool	color_input
bool	use_alpha

Detailed Description

Definition at line 17 of file layernode.h.

Constructor & Destructor Documentation

layerNode_t::layerNode_t	(	unsigned	tflag,
		CFLOAT	col_fac,
		CFLOAT	var_fac,
		CFLOAT	def_val,
		colorA_t	def_col,
		mix_modes	mmod
	)

Definition at line 9 of file layernode.cc.

Member Function Documentation

bool layerNode_t::configInputs	(	const paraMap_t &	params,
		const nodeFinder_t &	find
	)			`[virtual]`

configure the inputs. gets the same paramMap the factory functions get, but shader nodes may be created in any order and linked afterwards, so inputs may not exist yet on instantiation

Implements shaderNode_t.

Definition at line 153 of file layernode.cc.

void layerNode_t::eval	(	nodeStack_t &	stack,
		const renderState_t &	state,
		const surfacePoint_t &	sp,
		const vector3d_t &	wo,
		const vector3d_t &	wi
	)			const `[virtual]`

evaluate the shader for given surface point and directions; otherwise same behavious than the other eval. Should only be called when the node returns true on isViewDependant()

Implements shaderNode_t.

Definition at line 89 of file layernode.cc.

void layerNode_t::eval	(	nodeStack_t &	stack,
		const renderState_t &	state,
		const surfacePoint_t &	sp
	)			const `[virtual]`

evaluate the shader for given surface point; result has to be put on stack (using stack[ID]). i know, could've passed const stack and have nodeResult_t return val, but this should be marginally more efficient, so do me the favour and just don't mess up other stack elements ;)

Implements shaderNode_t.

Definition at line 14 of file layernode.cc.

void layerNode_t::evalDerivative	(	nodeStack_t &	stack,
		const renderState_t &	state,
		const surfacePoint_t &	sp
	)			const `[virtual]`

evaluate the shader partial derivatives for given surface point (e.g. for bump mapping); attention: uses color component of node stack to store result, so only use a stack for either eval or evalDeriv!

Reimplemented from shaderNode_t.

Definition at line 94 of file layernode.cc.