Multiple effect expression method and apparatus in 3-dimension graphic image

A method of expressing effects in a 3-dimensional image, comprising:

• defining nodes in VRML (Virtual Reality Modeling Language), the nodes being used to express multiple effects;
• inputting VRML files corresponding to the defined nodes, the VRML files having information on the 3-dimensional image and the multiple effects to be expressed in the 3-dimensional image;
• generating the 3-dimensional image using the input VRML files;
• and
• using at least one processing device for expressing the multiple effects in the generated 3-dimensional image using the information on the multiple effects in the input VRML files, wherein the effects are expressed in the 3-dimensional image by partitioning the generated 3-dimensional object into triangles and using operations at vertex and pixel levels of the triangles.

A method of expressing effects in a 3-dimensional image, comprising:

• defining nodes in VRML (Virtual Reality Modeling Language), respectively defining effects relative to an object of the 3-dimensional image, different from other-object nodes in VRML respectively identifying effects relative to another object of the 3-dimensional image, with one or more of the defined nodes having plural fields representing different effects and the one or more defined nodes being used to express multiple effects including one or more effects expressed on the object of the 3-dimensional image and one or more effects expressed on the 3-dimensional image;
• generating the 3-dimensional image using the defined nodes;
• and
• using at least one processing device for synthesizing and expressing the multiple textures in the generated 3-dimensional image using information on the multiple textures in the defined nodes.

A method of synthesizing and expressing multiple textures for an object in a 3-dimensional image, comprising:

• generating a resultant image by expressing one of the multiple textures for the object in the 3-dimensional image;
• using at least one processing device for generating a texture image expressing one of the multiple textures in the 3-dimensional image, determining a color of the resultant image by performing a first operation with at least one of a color of the resultant image, a color of the texture image, and a basic color based on a color field of a node defining the multiple textures of the object different from another node defining multiple textures of another object in the 3-dimensional image, determining a transparency of the resultant image by performing a second operation with transparency of the resultant image, transparency of the texture image, and a predetermined basic transparency based on an alpha field of the node defining the multiple textures of the object, thereby synthesizing the texture image to the resultant image;
• and
• repeatedly synthesizing the texture image into the resultant image until all the multiple textures are expressed in the 3-dimensional image.

A computer-readable medium having embodied thereon a computer program for expressing effects in a 3-dimensional image, comprising:

• an effect node expressing multiple effects for an object in the 3-dimensional image different from another node defining multiple effects of another object in the 3-dimensional image, through use of plural fields of the effect node, in the 3-dimensional image, the effect node including at least one of:
• srcBlending and dstBlending fields for designating values multiplied to first and second images, respectively, to synthesize the effect-expressed first and second images;
• a blendingOp field designating operations between the first and second images.
• an alphaOp field designating an operation for testing transparency of the second image;
• and
• an alphaRef field designating a reference value for testing the transparency of the second image.

A computer-readable medium having embodied thereon a computer program for expressing effects in a 3-dimensional image, comprising:

• a multitexturing node synthesizing and expressing multiple textures in the 3-dimensional image different from another node defining multiple textures of another object in the 3-dimensional image, through use of plural fields of the multitexturing node, for an object in the 3-dimensional image, the multitexturing node including at least one of:
• a tfactorColor field designating a basic color;
• a tfactorAlpha field designating a basic transparency value;
• a colorStages field designating an operation used to blend colors of images in which the multiple textures are expressed;
• an alphaStages field designating an operation used to determine transparency of a resultant image in which the multiple textures are synthesized;
• a textureIndices field designating the multiple textures;
• a texGeneration field designating coordinate values of the multiple textures;
• and
• a texTransformIndices field designating transform information on the multiple textures.

A virtual reality modeling language (VRML) node expressing multiple effects controlling operation of at least one processing device generation of an object in a 3-dimensional image different from another node defining multiple effects of another object in the 3-dimensional image, the VRML node comprising:

• srcBlending and dstBlending fields designating values multiplied to first and second images, respectively, to synthesize the effect-expressed first and second images;
• a blendingOp field designating operations between the first and second images;
• an alphaOp field designating an operation for testing transparency of the second image;
• or
• an alpha Ref field designating a reference value for testing the transparency of the second image.

A virtual reality modeling language (VRML) node expressing multiple effects controlling operation of at least one processing device generation of an object in a 3-dimensional image different from another node defining multiple effects of another object in the 3-dimensional image, the VRML node comprising:

• a textureIndices field designating multiple textures to be synthesized and expressed in the 3-dimensional image;
• a tfactorColor field designating a basic color;
• a tfactorAlpha field designating a basic transparency value;
• a colorStages field designating an operation used to blend colors of images in which the multiple textures are expressed;
• an alphaStages field designating an operation used to determine transparency of a resultant image in which the multiple textures are synthesized;
• a texGeneration field designating coordinate values of the multiple textures;
• or
• a texTransformIndices field designating transform information on the multiple textures.

An apparatus for expressing effects in a 3-dimensional image, comprising:

• a memory storing information on nodes defined in VRML (Virtual Reality Modeling Language) respectively defining effects relative to an object of the 3-dimensional image, different from other-object nodes in VRML respectively identifying effects relative to another object of the 3-dimensional image, with one or more of the defined nodes having plural fields representing different effects and the one or more defined nodes being used to express multiple effects including one or more effects expressed on the object of the 3-dimensional image and one or more effects expressed on the 3-dimensional image;
• a file analysis unit analyzing the defined nodes stored in the memory to output the information on the multiple effects;
• and
• a multiple effect synthesis unit expressing the multiple effect for a 3-dimensional object in the 3-dimensional image using the information on the analyzed defined nodes.

An apparatus for expressing effects in a 3-dimensional image, comprising:

• a memory storing information on nodes defined in VRML (Virtual Reality Modeling Language) respectively defining effects relative to an object of the 3-dimensional image, different from other-object nodes in VRML respectively identifying effects relative to another object of the 3-dimenionsl image, with one or more of the defined nodes having plural fields representing different effects and the one or more defined nodes being used to express multiple effects including one or more effects expressed on the object of the 3-dimensional image and one or more effects expressed on the 3-dimensional image;
• a file analysis unit analyzing the defined nodes stored in the memory to output the information on the multiple effects;
• and
• a multiple effect synthesis unit synthesizing the multiple textures in the 3-dimensional image using the information on the analyzed defined nodes.