JPH0620064A - Rendering processing device - Google Patents

Abstract

PURPOSE:To easily check the qualitative feeling of a partial area of the whole of a picture at the time of three-dimensional computer graphics work. CONSTITUTION:Form data is inputted by a form input device 10, and the position of an object, light (position, direction, color, intensity, etc.,), and camera information (position, direction, field angle, aspect ratio, and projection face) are designated by a designating device, and a sub-area where the qualitative feeling is improper out of all of areas of the picture is designated by a sub-area designating device 14, and only sub-area projected on a two-dimensional plane is subjected to rendering by a two-dimensional picture projection generating device 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rendering processing apparatus, and more particularly, when a three-dimensional computer graphics is produced, when a part of the entire image area has an inappropriate area for setting texture such as color. The present invention relates to a rendering processing device capable of easily checking a texture.

[0002]

2. Description of the Related Art In the production of three-dimensional computer graphics (CG), for example, CG calendar, CG hologram, CG poster, high-definition CG, etc.
BACKGROUND ART Rendering, which is a work of giving brightness and color to a three-dimensional shape projected on a three-dimensional plane to give a more realistic texture, is performed.

In the above image production, an appropriate texture is set in almost the entire area of the image, but there is a case in which a part of the area has an inappropriate color setting or the like. in this way,
Since there is a portion where the texture is inappropriate only in a partial area of the entire image, even if it is desired to check the texture of that partial area, rendering has been conventionally performed for the entire area of the image.

[0004]

However, as described above, even when it is desired to check the texture of only a part of the entire image, the texture texture is inevitably used when rendering the entire area. There was a problem that it took a long time to include it.

The present invention has been made to solve the above-mentioned conventional problems, and when a part of the entire image has an area having an inappropriate texture, the texture texture time is greatly shortened. An object of the present invention is to provide a rendering processing device capable of performing the above.

[0006]

SUMMARY OF THE INVENTION The present invention provides a rendering processing apparatus having a function of designating a whole area obtained by projecting a three-dimensional object on a two-dimensional plane when producing three-dimensional computer graphics. The above object is achieved by providing a function of designating a sub-region having an arbitrary size at an arbitrary position in the center and performing rendering only for the designated sub-region.

[0007]

According to the present invention, a sub-region having an arbitrary size is designated at an arbitrary position in the entire region of an image, the sub-region is projected onto a two-dimensional plane, and only the sub-region is rendered. Since it is possible to render, it is possible to render only a part of the area where you want to check the texture, and the time required to determine the texture compared to when rendering the entire image as in the past. Can be significantly reduced.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing an outline of the overall construction of a rendering apparatus which is an embodiment according to the present invention.

The rendering apparatus according to the present embodiment is for inputting shape data, and for designating the position, light and camera information of an object based on the input information from the shape input apparatus 10. An object position / light / camera information designating device 12, a sub-region designating device 14 for designating a sub-region of the entire image region, and input information of the object position / light / camera information designating device 12.
The two-dimensional image projection creating device 16 is provided for rendering the specified sub-region based on the input information from the sub-region specifying device 14.

The shape input device 10 is a device for inputting the shape data of an object, and can represent each surface forming the object as a collection of vertex information (X, Y, Z coordinates). There is.

The object position / light / camera information specifying device 12 specifies the position of the object, light (position, orientation, color, intensity, etc.) and camera information (position, orientation, angle of view, aspect ratio, projection plane). It is a device that can specify the entire area to be rendered by camera information.

The sub-region designating device 14 is a device for designating a sub-region to be actually rendered out of the entire region, and is a broken line in FIG. 2 which schematically shows the projection plane of the entire region 18 of the image. As shown in FIG. 5, it has a function of designating a rectangular sub-region 20 with an arbitrary size at an arbitrary position.

The two-dimensional image projecting device 16 reads the object shape, object position, light and camera information from the object position / light / camera information specifying device 12 and the sub area specifying information from the sub area specifying device 14, respectively. The rendering process can be executed only for the designated sub-region.

According to the rendering processing apparatus of this embodiment, as shown in FIG. 3 corresponding to FIG. 2, the rendering processing can be performed only on the sub-region 20 designated by the sub-region designation device 14. . The diagonal lines attached to the sub-region 20 represent the rendered state.

As described above, the rendering process is performed only on the rectangular sub-region, and after the texture is finely textured on the sub-region, the rendering is performed on the entire image region to obtain the final image. create.

According to the present embodiment described above, in the production of three-dimensional computer graphics, it is possible to significantly reduce the load of texture texture work. Further, when the texture of a part of the entire image is not good, it is possible to easily correct only that part (partial correction of the texture). Furthermore, if the image has been created up to the middle, such as when the rendering process was terminated halfway because the computer stopped for some reason, it is easy to re-render the subsequent parts. Therefore, it is possible to reduce the time for image creation work.

Although the present invention has been specifically described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention.

[0019]

As described above, according to the present invention, when there is a region having an inappropriate texture in a part of the entire image, the texture of the region can be easily determined. .

[Brief description of drawings]

FIG. 1 is a block diagram showing an outline of a configuration of a rendering apparatus that is an embodiment according to the present invention.

FIG. 2 is an explanatory diagram showing a method of designating a sub area.

FIG. 3 is an explanatory diagram showing rendering of only a sub area.

[Explanation of symbols]

 10 ... Shape input device 12 ... Object position / light / camera information designation device 14 ... Sub-region designation device 16 ... Two-dimensional image projection creation device

Claims (1)

[Claims] 1. A rendering processing apparatus having a function of designating an entire area obtained by projecting a three-dimensional object on a two-dimensional plane when producing three-dimensional computer graphics, wherein an arbitrary position in the entire area is arbitrary. A render link processing device having a function of designating a sub-region of a size and rendering only the designated sub-region.