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Add dielectric material

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This commit is contained in:
Camden Dixie O'Brien
2025-09-23 15:35:26 +01:00
parent 313619d8d5
commit 73028df5b3
7 changed files with 73 additions and 12 deletions
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14
include/material.h
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@@ -16,6 +16,12 @@
.params = { .reflective = { .tint = { r, g, b } } }, \
}
#define DIELECTRIC(e) \
{ \
.scatter = scatter_dielectric, \
.params = { .dielectric = { .eta = e } }, \
}
typedef struct {
vec3_t point, normal;
double t;
@@ -30,9 +36,14 @@ typedef struct {
vec3_t tint;
} reflective_params_t;
typedef struct {
double eta;
} dielectric_params_t;
typedef union {
lambertian_params_t lambertian;
reflective_params_t reflective;
dielectric_params_t dielectric;
} material_params_t;
typedef bool scatter_fn_t(
@@ -50,5 +61,8 @@ bool scatter_lambertian(
bool scatter_reflective(
material_params_t params, hit_t hit, rng_t *rng, ray_t *ray,
vec3_t *atten_out);
bool scatter_dielectric(
material_params_t params, hit_t hit, rng_t *rng, ray_t *ray,
vec3_t *atten_out);
#endif