scimesh::Light Struct Reference

A light source for the Blinn-Phong shading model. More...

#include <types.h>

Collaboration diagram for scimesh::Light:

Public Attributes
Vec3	position = Vec3(0.0f, 0.0f, 1.0f)
	Position of the light.
Color	color = Color(1.0f, 1.0f, 1.0f, 1.0f)
	Color of the light (default: white).
float	intensity = 1.0f
	Brightness multiplier (default: 1.0).
bool	is_directional = true
	Whether this is a directional light (default: true).

Detailed Description

A light source for the Blinn-Phong shading model.

Lights illuminate meshes during rendering. A directional light (the default) shines from a direction toward the origin — its position is treated as a direction vector. Point lights are not yet supported.

Example: setting up two lights

RenderOptions opts;
opts.lights.push_back(Light{Vec3(0, 0, 1), Color(1,1,1), 1.0f, true});
opts.lights.push_back(Light{Vec3(1, 0, 0), Color(1,0,0), 0.5f, true});
// Light 1: white from +Z, full intensity
// Light 2: red from +X, half intensity

See also

RenderOptions, RenderOptions::lights, RenderOptions::ambient

shade_pixel(), shade_pixel_multi()

Definition at line 179 of file types.h.

Member Data Documentation

color

Color scimesh::Light::color = Color(1.0f, 1.0f, 1.0f, 1.0f)

Color of the light (default: white).

Each channel multiplies the surface color during shading.

Definition at line 189 of file types.h.

intensity

float scimesh::Light::intensity = 1.0f

Brightness multiplier (default: 1.0).

Values > 1.0 produce brighter-than-white illumination (may saturate).

Definition at line 194 of file types.h.

is_directional

bool scimesh::Light::is_directional = true

Whether this is a directional light (default: true).

When true, light rays are parallel (like the sun). Point lights (not yet implemented) would set this to false.

Definition at line 200 of file types.h.

position

Vec3 scimesh::Light::position = Vec3(0.0f, 0.0f, 1.0f)

Position of the light.

When is_directional == true (the default), this is interpreted as a direction vector (the light is infinitely far away).

Definition at line 184 of file types.h.

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

• src/core/scimesh/types.h