void ctx_identity(struct context *ctx)
{
*ctx->transform = mat4identity();
if (ctx->program)
set_uniform_mat4(ctx->program, "transform", ctx->transform);
}
void ctx_save(struct context *ctx)
{
mat4_t *m = malloc(sizeof(*m));
if (ctx->transforms == NULL) {
*m = mat4identity();
} else {
*m = *(mat4_t *)ctx->transforms->head;
}
list_push(&ctx->transforms, m);
ctx->transform = m;
}
void light_init_at(light_t* light, int i) {
mat4identity(light->pos[i]);
vec4set(light->col[i], 1, 1, 1, 1);
light->user_ptr[i] = NULL;
}
