IESDataset¶
-
class
IESDataset
¶ This class is used by the IESLoader to generate a LUT texture which is used in the shaders to perform IES lighting. It takes a set of vertical and horizontal angles, as well as a set of candela values, which then are lineary interpolated onto a 2D LUT Texture.
Inheritance diagram
-
IESDataset
(void)¶
-
IESDataset
(IESDataset const&) = default¶ This constructs a new
IESDataset
with no data set.
-
void
generate_dataset_texture_into
(Texture *dest_tex, std::size_t z) const¶ This generates the LUT into a given dataset texture. The x-axis referes to the vertical_angle, whereas the y-axis refers to the horizontal angle.
2D Texture Array.
-
void
set_candela_values
(PTA_float const &candela_values)¶ This sets the candela values of the dataset. They should be an interleaved 2D array with the dimensions vertical_angles x horizontal_angles. They also should be normalized by dividing by the maximum entry.
-