GPUShaders::Frag::Shaderbench Class Reference

Shaderbench fragment shader. More...

Public Member Functions
vec2	map (vec3 pos)
bool	raymarch (vec3 orig, vec3 dir, out float t, out vec2 res)
vec3	normal (vec3 p)
void	main ()
	Main render function. More...

Public Attributes
in vec4	dir
	View world direction.
in vec2	uv
	Texture coordinates.
uniform uniform float	iTime
	Time since beginning of playback.
uniform float	iTimeDelta
	Time since last frame.
uniform float	iFrame
	Frame count since beginning of playback.
uniform vec3	iResolution
	Screen resolution.
uniform vec4	iMouse
	xy: mouse position if left button pressed, zw: left/right button clicked?
uniform mat4	iView
	View matrix.
uniform mat4	iProj
	Projection matrix.
uniform mat4	iViewProj
	View projection matrix.
uniform mat4	iViewInv
	Inverse view matrix.
uniform mat4	iProjInv
	Inverse projection matrix.
uniform mat4	iViewProjInv
	Inverse view projection matrix.
uniform mat4	iNormalMat
	Normal transformation matrix.
uniform vec3	iCamPos
	Camera position.
uniform vec3	iCamUp
	Camera up vector.
uniform vec3	iCamCenter
	Camera lookat position.
uniform float	iCamFov
	Camera field of view.
uniform float	gamma
	Gamma correction.
uniform float	specExponent
	Specular exponent.
uniform float	radius
	Sphere radius.
uniform float	epsilon
	Raymarching tolerance.
uniform vec3	skyBottom
	Sky color bottom.
uniform vec3	skyLight
	Light color bottom.
uniform vec3	skyTop
	Sky color.
uniform vec3	lightColor
	Light color.
uniform vec3	sphereColor
	Sphere color.
uniform vec3	ground0
	Ground color 0.
uniform vec3	ground1
	Ground color 1.
uniform vec4	lightDirection
	Light direction.
uniform int	stepCount
	Maximum step count.
uniform bool	showPlane
	Show the moving plane.
out vec4	fragColor
	Output color.

Detailed Description

Shaderbench fragment shader.

See also

GPUShaders::Common::Samplers

Member Function Documentation

main()

void GPUShaders::Frag::Shaderbench::main ( )

inline

Main render function.

Exposure tweak, output.

map()

vec2 GPUShaders::Frag::Shaderbench::map ( vec3  pos )

inline

Scene signed distance function.

Parameters

pos	the 3D world position

Returns

the distance to the surface and the material ID.

normal()

vec3 GPUShaders::Frag::Shaderbench::normal ( vec3  p )

inline

Compute the normal to the surface of the scene at a given world point.

Parameters

p	the point to evaluate the normal at

Returns

the normal

raymarch()

bool GPUShaders::Frag::Shaderbench::raymarch ( vec3  orig, vec3  dir, out float  t, out vec2  res  )

inline

Raymarch until hitting the scene surface or reaching the max number of steps.

Parameters

orig	the ray position
dir	the ray direction
t	will contain the distance along the ray to the intersection
res	will contain final distance to the surface and material ID

Returns

true if there was an intersection

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

• resources/shaderbench/shaders/shaderbench.frag