Mitsubishi Denki Kabushiki Kaisha

Kanako Yoshida

Tadashi Sakamoto

A three-dimensional graphics drawing apparatus includes a hidden surface calculating portion to determine whether or not a part is visible on the picture screen based on three-dimensional data, a tone calculating portion to calculate the tones of pixels at prescribed intervals in a part determined to be visible on the picture screen by the hidden surface calculating portion, an interpolating portion to interpolate a pixel whose tone has not been calculated, based on the tones of pixels at the prescribed intervals calculated by the tone calculating portion, and a drawing portion to draw graphics on the picture screen based on the result of calculation by said calculating portion and the result of interpolation by said interpolating portion. The interpolating portion interpolates a pixel whose tone has not been calculated, based on the tones of pixels at prescribed intervals calculated by the tone calculating portion, therefore the time required for calculating the tones of pixels can be reduced and the drawing speed can be improved.

Three-dimensional graphics drawing apparatus calculating tone of pixel based on tones of pixels at prescribed intervals, method thereof and medium recorded with program therefor

Growing community of inventors

Hyogo, Japan

Kanako Yoshida