| 摘要 |
In a texture blend circuit, arithmetic operations are performed on three colors: a texture color (Rt, Gt, Bt, At) produced from a texture mapping circuit for attaching a texture onto a triangle from vertex coordinates of a triangle and texture information; a shading color (Rf, Gf, Bf, Af) from an interpolation circuit; and a texture environment color (Rc, Gc, Bc, Ac), in order to output an output color (Rv, Gv, Bv, Av). The texture blend circuit is provided with a multiplier for multiplying a color information (RGB) component of a texture color and a brightness information (A) component of a shading color, and an adder for adding a color information (RGB) component of a shading color and the color information by the multiplier for each element.
|
