R2DepthShaderMain.h File Reference

The main function that all depth shaders must implement. More...

#include "R2SurfaceTypes.h"
#include "R2View.h"

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Functions
bool	R2_depthShaderMain (const R2_vertex_data_t data, const R2_view_t view, const R2_surface_matrices_instance_t matrices_instance)

Detailed Description

The main function that all depth shaders must implement.

Definition in file R2DepthShaderMain.h.

Function Documentation

R2_depthShaderMain()

bool R2_depthShaderMain	(	const R2_vertex_data_t	data,
		const R2_view_t	view,
		const R2_surface_matrices_instance_t	matrices_instance
	)

Calculate surface values for the current surface. Implementations of this function are expected to calculate a description of the current surface and then return true if the surface fragment should not be discarded.

Parameters

data	Surface data (typically coming from a vertex)
derived	Surface data calculated from the original vertex
view	Matrices and parameters related to the current view
matrices_instance	Matrices related to the instance to which this surface belongs

Returns

true iff the depth value should not be discarded

Definition at line 13 of file R2DepthBasic.h.

{
  vec4 surface = texture (R2_texture_albedo, data.uv);
  return surface.w < R2_alpha_discard_threshold;
}