Abstract: To provide a rendering program, a rendering apparatus, and a rendering method, which are capable of displaying a sterical model surface using a fabric in which the real feel of material is reproduced. A reflection property measurement device 10 receives reflected light of an actual yarn T2 and measures a reflection property representing the energy of the reflected light of the yarn T2. A correction portion 106 calculates a specular reflection coefficient Ks, a glossiness coefficient p, and first and second diffuse reflection coefficients Kd1, Kd2 by using parameter fitting so that the error between the reflection property of the actual yarn and the energy of the reflected light obtained from a reflection function becomes minimum. A rendering portion 107 renders the sterical model by using the reflection function in which the coefficients are calculated and a texture which is the model of a fabric subjected to a napping treatment.

Abstract: A knitting structure model generation program, apparatus and method are provided to generate a three-dimensional model of a warp knit to reproduce a realistic knitting structure. An initial model generation portion (160) generates in a virtual three-dimensional space an initial model of a warp knit representing one column of yarn path in a warp direction and array information representing an array position in a weft direction of one column of yarn path. A position correction portion (170) sets mass points of a yarn on the yarn path, generates a dynamic model of the warp knit by connecting the mass points, and corrects the position of each mass point. A three-dimensional model generation portion (180) forms a surface expressing a yarn surface on a yarn path represented by the edge connected to the mass points whose positions are corrected, and thereby generates a three-dimensional model of the warp knit.

Abstract: A fabric model generation program, apparatus and method generate a napped fabric model that reproduces the realistic structure of each napped part. A placement portion (130) calculates an initial shape of three-dimensional napped models of the napped parts based on a degree of defiberation, minimum radius and height information, and places the napped models having the calculated initial shape on the base texture model. A flexure energy calculation portion (141) calculates a flexure energy representing the energy of the napped models attempting to flex, on the basis of a yarn stiffness coefficient. A repulsion energy calculation portion (142) calculates repulsion energy between the napped models attempting to repel each other, on the basis of a repulsion coefficient. A final shape calculation portion (143) calculates the final shape of the napped models so that a sum energy obtained by adding the flexure energy and the repulsion energy becomes minimum.

Abstract: A knitting structure model is generated from knitting structure data represented by specific symbols so that an individual can easily imagine what type of knit fabric will be knitted. A knitting structure data acquiring portion (11) acquires knitting structure data made up of symbols (T) representing a tuck, (W) representing a welt, and (K) representing a knit. Anode aligning portion (12) aligns nodes representing connecting points of yarns forming the knit fabric within the (XY) plane in a lattice form. A simplified model generating portion (13) generates a simplified knitting structure model by connecting the nodes aligned within the XY plane with edges corresponding to the yarns according to the knitting structure data. A display portion (40) displays the simplified knitting structure model thereon.

Abstract: A car seat fabric is simulated with a feeling of reality. A fabric texture information input acceptance portion (101) accepts texture information about the fabric used for the car seat fabric. A thread information input acceptance portion (102) accepts thread information about threads used for the fabric. A 3-D fabric image creation portion (103) creates a steric structure of the car seat fabric as a 3-D fabric image on the basis of the texture information accepted at the fabric texture information input acceptance portion (101) and the thread information accepted at the thread information input acceptance portion (102). An image attachment portion (105) attaches the 3-D fabric image created by the 3-D fabric image creation portion (103) to a car seat model. A car seat image display (402) displays the car seat model to which the 3-D fabric image is attached by the image attachment portion (105).

Abstract: To provide a fabric model generation program, fabric model generation apparatus and fabric model generation method that are capable of generating a napped fabric model in which the realistic structure of each napped part is reproduced. A placement portion 130 calculates an initial shape of napped models, which are three-dimensional models of the napped parts, on the basis of a degree of defiberation, minimum radius and height information, and places the napped models having the calculated initial shape in predetermined positions of the base texture model. A flexure energy calculation portion 141 calculates a flexure energy representing the energy of the napped models attempting to flex, on the basis of a yarn stiffness coefficient. A repulsion energy calculation portion 142 calculates a repulsion energy representing the energy between the napped models attempting to repel each other, on the basis of a repulsion coefficient.

Abstract: A knitting structure model generation program, apparatus and method are provided to generate a three-dimensional model of a warp knit to reproduce a realistic knitting structure. An initial model generation portion (160) generates in a virtual three-dimensional space an initial model of a warp knit representing one column of yarn path in a warp direction and array information representing an array position in a weft direction of one column of yarn path. A position correction portion (170) sets mass points of a yarn on the yarn path, generates a dynamic model of the warp knit by connecting the mass points, and corrects the position of each mass point. A three-dimensional model generation portion (180) forms a surface expressing a yarn surface on a yarn path represented by the edge connected to the mass points whose positions are corrected, and thereby generates a three-dimensional model of the warp knit.

Abstract: To provide a rendering program, a rendering apparatus, and a rendering method, which are capable of displaying a sterical model surface using a fabric in which the real feel of material is reproduced. A reflection property measurement device 10 receives reflected light of an actual yarn T2 and measures a reflection property representing the energy of the reflected light of the yarn T2. A correction portion 106 calculates a specular reflection coefficient Ks, a glossiness coefficient p, and first and second diffuse reflection coefficients Kd1, Kd2 by using parameter fitting so that the error between the reflection property of the actual yarn and the energy of the reflected light obtained from a reflection function becomes minimum. A rendering portion 107 renders the sterical model by using the reflection function in which the coefficients are calculated and a texture which is the model of a fabric subjected to a napping treatment.

Abstract: A knitting structure model is generated from knitting structure data represented by specific symbols so that an individual can easily imagine what type of knit fabric will be knitted. A knitting structure data acquiring portion (11) acquires knitting structure data made up of symbols (T) representing a tuck, (W) representing a welt, and (K) representing a knit. Anode aligning portion (12) aligns nodes representing connecting points of yarns forming the knit fabric within the (XY) plane in a lattice form. A simplified model generating portion (13) generates a simplified knitting structure model by connecting the nodes aligned within the XY plane with edges corresponding to the yarns according to the knitting structure data. A display portion (40) displays the simplified knitting structure model thereon.

Abstract: A car seat fabric is simulated with a feeling of reality. A fabric texture information input acceptance portion (101) accepts texture information about the fabric used for the car seat fabric. A thread information input acceptance portion (102) accepts thread information about threads used for the fabric. A 3-D fabric image creation portion (103) creates a steric structure of the car seat fabric as a 3-D fabric image on the basis of the texture information accepted at the fabric texture information input acceptance portion (101) and the thread information accepted at the thread information input acceptance portion (102). An image attachment portion (105) attaches the 3-D fabric image created by the 3-D fabric image creation portion (103) to a car seat model. A car seat image display (402) displays the car seat model to which the 3-D fabric image is attached by the image attachment portion (105).