r_sphere.h File Reference

Functions to generate and render spheres. More...

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Data Structures
struct	sphere_t

Functions
void	R_SphereGenerate (sphere_t *sphere, const int tris, const float radius)
	Initialize the globe chain arrays.
void	R_SphereRender (const sphere_t *sphere, const vec3_t pos, const vec3_t rotate, const float scale, const vec4_t lightPos)
	Draw the sphere.
void	R_SphereInit (void)
	Creates the spheres we need for rendering the 3d globe.

Variables
sphere_t	r_globeEarth
sphere_t	r_globeMoon
sphere_t	r_globeEarthAtmosphere

Detailed Description

Functions to generate and render spheres.

Definition in file r_sphere.h.

Function Documentation

R_SphereGenerate()

void R_SphereGenerate	(	sphere_t *	sphere,
		const int	tris,
		const float	radius )

Initialize the globe chain arrays.

Parameters

[out]	sphere	The sphere you want to create
[in]	tris	The amount of tris the globe should have - the higher the number the higher the details. tris*tris triangles are obtained.
[in]	radius	The radius of the sphere

See also

R_Draw3DGlobe

< angle from the pole (z-axis)

< angle around the equator, from y-axis

Definition at line 51 of file r_sphere.cpp.

References sphere_t::glslProgram, i, M_PI, Mem_PoolAllocTypeN, sphere_t::normals, sphere_t::num_tris, rhoSpiral(), sphere_t::texes, Vector2Set, VectorNormalize2(), VectorSet, sphere_t::verts, and vid_genericPool.

Referenced by R_SphereInit().

R_SphereInit()

void R_SphereInit

(

void

)

Creates the spheres we need for rendering the 3d globe.

Note

The moon sphere has less detail because it's smaller in the scene

The sizes are arbitrary, becasue we use orthographic projection. The real sizes are: lunarRadius = 0.273 * earthRadius, solarRadius = 110.0 * earthRadius

See also

R_Init

Definition at line 119 of file r_sphere.cpp.

References CVAR_ARCHIVE, Cvar_Get(), Cvar_SetValue(), EARTH_RADIUS, MOON_RADIUS, r_globeEarth, r_globeEarthAtmosphere, r_globeMoon, r_sphereDetails, and R_SphereGenerate().

Referenced by R_Init().

R_SphereRender()

void R_SphereRender	(	const sphere_t *	sphere,
		const vec3_t	pos,
		const vec3_t	rotate,
		const float	scale,
		const vec4_t	lightPos )

Draw the sphere.

Parameters

[in]	sphere	The sphere that should be rendered
[in]	pos	The position (translation) of the matrix
[in]	rotate	The rotation of the matrix
[in]	scale	The scale of the matrix
[in]	lightPos	Set this to nullptr if you don't want to change the light position

Definition at line 247 of file r_sphere.cpp.

References sphere_t::num_tris, sphere_t::overlay, PITCH, R_BindDefaultArray(), R_CheckError, R_SphereCheckGLSL(), R_SphereShade(), R_SphereShadeGLSL(), refdef, ROLL, scale, VectorNotEmpty, viddef, and YAW.

Referenced by R_Draw3DGlobe().

Variable Documentation

r_globeEarth

sphere_t r_globeEarth

extern

Definition at line 33 of file r_sphere.cpp.

Referenced by R_Draw3DGlobe(), and R_SphereInit().

r_globeEarthAtmosphere

sphere_t r_globeEarthAtmosphere

extern

Definition at line 35 of file r_sphere.cpp.

Referenced by R_Draw3DGlobe(), and R_SphereInit().

r_globeMoon

sphere_t r_globeMoon

extern

Definition at line 34 of file r_sphere.cpp.

Referenced by R_Draw3DGlobe(), and R_SphereInit().