geometry_utils.h File Reference

#include "math_types.h"

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Functions
void	geometry_generate_normals (u32 vertex_count, vertex_3d *vertices, u32 index_count, u32 *indices)
	Calculates normals for the given vertex and index data. Modifies vertices in place. More...
void	geometry_generate_tangents (u32 vertex_count, vertex_3d *vertices, u32 index_count, u32 *indices)
	Calculates tangents for the given vertex and index data. Modifies vertices in place. More...
void	geometry_deduplicate_vertices (u32 vertex_count, vertex_3d *vertices, u32 index_count, u32 *indices, u32 *out_vertex_count, vertex_3d **out_vertices)
	De-duplicates vertices, leaving only unique ones. Leaves the original vertices array intact. Allocates a new array in out_vertices. Modifies indices in-place. Original vertex array should be freed by caller. More...
void	terrain_geometry_generate_normals (u32 vertex_count, struct terrain_vertex *vertices, u32 index_count, u32 *indices)
void	terrain_geometry_generate_tangents (u32 vertex_count, struct terrain_vertex *vertices, u32 index_count, u32 *indices)

Function Documentation

geometry_deduplicate_vertices()

void geometry_deduplicate_vertices	(	u32	vertex_count,
		vertex_3d *	vertices,
		u32	index_count,
		u32 *	indices,
		u32 *	out_vertex_count,
		vertex_3d **	out_vertices
	)

De-duplicates vertices, leaving only unique ones. Leaves the original vertices array intact. Allocates a new array in out_vertices. Modifies indices in-place. Original vertex array should be freed by caller.

Parameters

vertex_count	The number of vertices in the array.
vertices	The original array of vertices to be de-duplicated. Not modified.
index_count	The number of indices in the array.
indices	The array of indices. Modified in-place as vertices are removed.
out_vertex_count	A pointer to hold the final vertex count.
out_vertices	A pointer to hold the array of de-duplicated vertices.

geometry_generate_normals()

void geometry_generate_normals	(	u32	vertex_count,
		vertex_3d *	vertices,
		u32	index_count,
		u32 *	indices
	)

Calculates normals for the given vertex and index data. Modifies vertices in place.

Parameters

vertex_count	The number of vertices.
vertices	An array of vertices.
index_count	The number of indices.
indices	An array of vertices.

geometry_generate_tangents()

void geometry_generate_tangents	(	u32	vertex_count,
		vertex_3d *	vertices,
		u32	index_count,
		u32 *	indices
	)

Calculates tangents for the given vertex and index data. Modifies vertices in place.

Parameters

vertex_count	The number of vertices.
vertices	An array of vertices.
index_count	The number of indices.
indices	An array of vertices.

terrain_geometry_generate_normals()

void terrain_geometry_generate_normals	(	u32	vertex_count,
		struct terrain_vertex *	vertices,
		u32	index_count,
		u32 *	indices
	)

terrain_geometry_generate_tangents()

void terrain_geometry_generate_tangents	(	u32	vertex_count,
		struct terrain_vertex *	vertices,
		u32	index_count,
		u32 *	indices
	)