forward

type ForwardRenderer struct {
	// OnScreenSizeChanged is the function called by the renderer after
	// a screen size change is detected.
	OnScreenSizeChanged func(fr *ForwardRenderer, width int32, height int32)

	// ActiveLights are the current lights that should be used while
	// drawing Renderables.
	ActiveLights [MaxForwardLights]*Light
	// contains filtered or unexported fields
}

type Light struct {
	// Position is the location of the light in world space
	Position mgl.Vec3

	// Direction is the direction the light points in
	Direction mgl.Vec3

	// DiffuseColor is the color the light emmits
	DiffuseColor mgl.Vec4

	// DiffuseIntensity is how strong the diffuse light should be
	DiffuseIntensity float32

	// SpecularIntensity is how strong the specular highlight should be
	SpecularIntensity float32

	// AmbientIntensity is how strong the ambient light should be
	AmbientIntensity float32

	// ConstAttenuation is the constant coefficient for the attenuation factor
	ConstAttenuation float32

	// LinearAttenuation is the linear coefficient for the attenuation factor
	LinearAttenuation float32

	// QuadraticAttenuation is the quadratic coefficient for the attenuation factor
	QuadraticAttenuation float32

	// Strength is the scale factor on the light strength.
	Strength float32

	// ShadowMap is the texture, and other data, used to render
	// shadows casted by the light. This member is nil when
	// the light does not cast shadows.
	ShadowMap *ShadowMap
	// contains filtered or unexported fields
}

type ShadowMap struct {
	// Texture is the texture for the shadowmap
	Texture graphics.Texture

	// TextureSize is the size of the texture in memory.
	TextureSize int32

	// Direction controls the direction the shadowmap points in.
	Direction mgl.Vec3

	// Near is the near distance for the shadowmap projection
	Near float32

	// Far is the far distance for the shadowmap projection
	Far float32

	// Up defines the Up vector for the projection when casting shadows. Defaults to {0,1,0}
	Up mgl.Vec3

	// Projection is the projection transformation matrix for the shadowmap
	Projection mgl.Mat4

	// View is the view transformation matrix for the shadowmap
	// Updated with UpdateShadowMapData().
	View mgl.Mat4

	// ViewProjMatrix is the combination view-projection matrix.
	// Updated with UpdateShadowMapData().
	ViewProjMatrix mgl.Mat4

	// ShadowBiasedMatrix is the shadow biased matrix to account for the difference between NDC and texture space.
	// Updated with UpdateShadowMapData().
	BiasedMatrix mgl.Mat4
	// contains filtered or unexported fields
}