JP6594498B2 - Video generation method, video generation program, and video generation apparatus - Google Patents

Description

  The present invention relates to a video generation method, a video generation program, and a video generation apparatus that generate a virtual three-dimensional space and develop a game in the three-dimensional space.

  In a 3D game, a viewpoint (camera position) is set in a virtual game space, and an image of the game space viewed from the camera position is displayed on a monitor as a game image (see, for example, Patent Document 1). Among 3D games, in particular, VR (Virtual Reality) compatible games can be played as if the user actually entered the virtual three-dimensional space displayed on the monitor.

  In general, in a 3D game, an image is displayed in which the direction of the player character is viewed from the back of the player character operated by the user. When the user operates the player character, the viewpoint (camera position) moves following the movement of the player character.

JP 2014-184300 A

  For example, when a VR-compatible action game or the like is played, a so-called 3D sickness may occur because frequent viewpoint movement follows the player character. 3D sickness is said to occur because the sense of movement in a virtual three-dimensional space caused by visual information is different from the actual physical state. In particular, it is known that 3D sickness frequently occurs in a scene where a player character is jumped.

  The present invention relates to a video generation method, a video generation program, and a video generation apparatus that reduce the occurrence of so-called 3D sickness in a virtual three-dimensional space.

  An image generation method provided by the first aspect of the present invention is a method for generating an image of a virtual space using a computer, in which a virtual object is moved in the virtual space according to a user operation. And a second step of causing the virtual camera to follow the object and generating an image of the object and the virtual space captured by the virtual camera. The first step raises the object. And a jump procedure for lowering, wherein the second procedure raises the virtual camera following the ascent of the object, and after the ascent of the virtual camera is finished, The virtual camera is lowered at a slow speed, and after the jump procedure is finished, the virtual camera is lowered to the height before the ascent start. When the jump procedure is started again, the virtual camera is instantly returned to the height before the start of the rise of the virtual camera, and the virtual camera is again followed by the rise of the object. It includes a jump follow-up procedure for raising.

  A video generation method provided by the second aspect of the present invention is a method for generating a video of a virtual space using a computer, wherein a virtual object is moved in the virtual space in accordance with a user operation. And a second step of causing the virtual camera to follow the object and generating an image of the object and the virtual space captured by the virtual camera. The first step raises the object. And a jump procedure for lowering, wherein the second procedure causes the virtual camera to start rising later than the rising start timing of the object, and further makes the rising speed slower than the rising speed of the object, After the raising of the virtual camera is finished, the virtual camera is at a speed slower than the speed at which the virtual camera is raised. Characterized in that it comprises a jump following steps lowering.

  The video generation method provided by the third aspect of the present invention is a method of generating a video of a virtual space using a computer, wherein a virtual object is moved in the virtual space according to a user operation. And a second step of causing the virtual camera to follow the object and generating an image of the object and the virtual space captured by the virtual camera. The first step raises the object. And a jump procedure for lowering, wherein the second procedure raises the virtual camera following the rise of the object, ends the rise before the rise of the object ends, and raises the virtual camera Jump follow-up procedure for lowering the virtual camera at a speed slower than the speed when the virtual camera is raised Characterized in that it contains.

  A video generation method provided by the fourth aspect of the present invention is a method of generating a video of a virtual space using a computer, wherein a virtual object is moved in the virtual space in accordance with a user operation. 1 procedure, and a second procedure for causing the virtual camera to follow the object and generating an image of the object and the virtual space captured by the virtual camera, wherein the first procedure The second procedure includes a jump procedure in which the object is raised from a position lower than the virtual camera and then lowered, and the second procedure includes the step of moving the object of the virtual camera after the object is positioned higher than the virtual camera by the jump procedure. The rising speed of the virtual camera after starting the rising following the rising and finishing the rising of the virtual camera Characterized in that at Rimoyukkuri the rate including the jump following steps for lowering the virtual camera.

  The video generation program provided by the fifth aspect of the present invention is an image generation program that causes a computer to function as video generation means for generating video in a virtual space, and the video generation means is responsive to a user operation. First means for moving a virtual object in the virtual space, and second means for causing a virtual camera to follow the object and generating a video of the object and the virtual space taken by the virtual camera. The first means includes jump means for raising and lowering the object, and the second means raises the virtual camera following the rise of the object, and the raising of the virtual camera is completed. After that, the virtual camera is lowered at a speed slower than the speed at which the virtual camera is raised. When the jump means is started again while the virtual camera is being lowered to the height before the start of the lift after the end of the amplifier means, the virtual camera is moved to the height before the start of the rise of the virtual camera. Jump-following means for returning the virtual camera instantaneously and raising the virtual camera again following the rising of the object is included.

  A video generation apparatus provided by a sixth aspect of the present invention includes a storage unit that stores the program, and a control unit that executes the program stored in the storage unit.

  According to the present invention, it is possible to reduce the occurrence of so-called 3D sickness in a virtual three-dimensional space.

FIG. 1 is a block diagram showing the configuration of the game system. FIG. 2 is a schematic diagram of a side view of the movement of the player character and the movement of the camera position. FIG. 3 is a schematic diagram of a side view of the movement of the player character and the movement of the camera position. FIG. 4 is a schematic diagram of a side view of the movement of the player character and the movement of the camera position. FIG. 5 is a schematic diagram of a side view of the movement of the player character and the movement of the camera position. FIG. 6 is a schematic diagram of a side view of the movement of the player character and the movement of the camera position. FIG. 7 is a timing chart showing the relationship between the movement of the player character and the movement of the camera position. FIG. 8 is a timing chart showing the relationship between the movement of the player character and the movement of the camera position. FIG. 9 is a flowchart for controlling the player character and the camera position when performing a jump action.

  The position control of the virtual camera that is the viewpoint of the game image in the game system 200 and the 3D game in which the video generation method of the present invention is implemented will be described with reference to the drawings.

[Game system configuration]
FIG. 1 is a block diagram showing a configuration of the game system 200. The game system 200 is a combination of a game apparatus body (computer) 10 including peripheral devices such as the controller 20 and a plurality of functional units realized by a game program supplied by the storage medium 15. The function unit includes a game image generation unit including a camera position control unit, an operation detection unit that detects an operation of the controller 20, and the like. A game function is realized by the plurality of functional units. The game image generation unit is realized mainly by the function of the CPU 31 that executes the game program. The operation detection unit is realized by the CPU 31 and the operator group 22 of the controller 20. Hereinafter, the configuration of the game system 200 will be described in detail.

  The game apparatus body 10 has a CPU 31 that controls the operation of the entire apparatus. A RAM 32 and a bus 33 are connected to the CPU 31. The RAM 32 stores various data according to the progress of the game.

  A graphic processor unit (GPU) 34 and an input / output (I / O) port 39 are connected to the bus 33. A VR headset 38 is connected to the GPU 34 via a decoder 37 for converting a digital video signal into an NTSC television system or a PAL television system.

  The I / O port 39 includes a driver (DRV) 40, a sound processor (SP) 42, an external memory 45, a controller 20, and a ROM 46 for reproducing and decoding data recorded on the recording medium 15. Connected.

  The recording medium 15 is, for example, a DVD (Digital Versatile Disc). The game apparatus body 10 reads the game program from the set recording medium 15 and executes the program. Note that the recording medium 15 may be other than DVD, and for example, a CD, Blu-ray Disc (registered trademark), a built-in hard disk, or the like can be used.

  The ROM 46 stores a system program for starting the game apparatus body 10 and realizing basic functions. The external memory 45 stores user information, the progress of the game being executed, and the like. By setting the storage medium 15 storing the game program and the user's external memory 45, the user can resume the game interrupted halfway from the interrupted timing.

  The sound processor 42 is connected via an amplifier 43 to a speaker 44 that is an external device. The speaker 44 is an integrated speaker with the VR headset 38.

  The controller 20 includes an operator group 22. The user operates the operator group 22 of the controller 20 to change the viewpoint of the game space (hereinafter referred to as “camera position”) displayed on the display of the player character 100 appearing in the game or the VR headset 38. It is possible to control. The operating element group 22 includes an operating element for operating the moving direction and moving speed of the player character 100, an operating element for causing the player character 100 to perform a specific action, an operating element for controlling the position of the camera 110, and the like. Contains. The operation element is, for example, a direction key, a stick, or a button. It is assumed that the operator 22A included in the operator group 22 is set as an operator for causing the player character 100 to jump. The operator group 22 is connected to the I / O port 21. The I / O port 21 of the controller 20 is connected to the I / O port 39 of the game apparatus body 10.

[Camera position control]
Next, camera position control executed by the camera position control unit of the game system 200 will be described with reference to the drawings. 2 to 6 are schematic views of the movement of the player character 100 and the movement of the camera position as viewed from the side. The X-axis, Y-axis, and Z-axis (paper depth direction) set in FIGS. 2 to 6 are orthogonal to each other, the Y + direction (upward on the paper surface) is the upward direction, and the Y-direction (lower surface of the paper surface) is the downward direction. To do. The Y + direction corresponds to the first direction of the present invention, and the Y− direction corresponds to the second direction of the present invention.

  As shown in FIG. 2, a game system 200 that executes a 3D game includes a virtual camera 110 in a game space that is a virtual three-dimensional space, and an image obtained by shooting the game space with the camera 110 as a game image VR. Output to the display of the headset 38. The generation of the game image is executed by a game image generation unit including a drawing processing unit that renders a game space landscape, a character appearance, and the like, and a camera position control unit that controls the camera position.

  The camera position control unit sets a gazing point 101 that is the direction of the camera 110 in the game space. The gaze point 101 is a center point of an area where the activity of the player character 100 is developed in the game space, and is set, for example, above the player character 100. Further, the gaze point 101 is attached with information indicating the position of the camera 110 installed toward the gaze point 101 as well as the three-dimensional coordinates indicating the position. That is, the gazing point 101 has a property like a starting point of a vector. Based on the information of the gazing point 101, the camera 110 is installed in the direction of the gazing point 101 at a camera position that is a predetermined direction, a predetermined distance, a predetermined elevation angle or depression angle from the gazing point 101.

  In general, the camera 110 captures a whole body image of the player character 100 from behind the player character 100, and a camera position where the direction in which the player character 100 is active enters the screen, that is, a position indicated by + in FIG. Is set. An area sandwiched between the boundary lines 110 </ b> A and 110 </ b> B extending from the camera 110 indicates a virtual shooting range captured by the camera 110. The camera position control unit controls the position and orientation of the camera 110 so that the player character 100 is included in the shooting range. The camera position control unit also controls the position and orientation of the camera 110 based on the operation of the controller 20 by the user. The camera position control is not limited to control in which the whole body of the player character 100 is included in the shooting range. The camera position control may be performed so that at least the head of the player character 100 does not deviate from the virtual shooting range.

  FIG. 2 shows a state before the player character 100 performs a jump action. The camera 110 is arranged at a predetermined position with the gazing point 101 as a reference. In this embodiment, the origin coordinate of the player character 100 with respect to the ground 120 is the grounding point 121, and the gazing point 101 is provided at a position higher than the height HP1 of the top of the player character 100. The initial position of the camera 110 is set to a position that forms a predetermined angle A3 with respect to the horizontal line passing through the gazing point 101 and is separated from the gazing point 101 by a predetermined distance. The height from the ground 120 to the initial position of the camera 110 is HC1.

  The jumping action of the player character 100 is executed when the user operates the operation element 22A of the controller 20. It is assumed that the jumping action of the present embodiment is an action in which the player character 100 rises from the ground contact point 121 on the ground 120 to the highest point and descends from the highest point to the ground contact point 121 on the ground 120. That is, the movement is along the Y axis and does not include movement in the X axis direction and the Z axis direction. The jump operation is not limited to this, and movement in the X-axis direction, the Y-axis direction, and the Z-axis direction may be included. Moreover, the starting point and the landing point may be different. That is, the present invention can be applied not only to a jump in a stopped state but also to a jump while moving (walking or running).

  In the state shown in FIG. 2, the game image generation unit shoots the player character 100 from the camera 110 with the height HC1 before the jump action, and displays the state in the virtual game space 40 on the display of the VR headset 38. indicate.

  FIG. 3 shows a state immediately after the user performs an operation on the operation element 22A of the controller 20 and the player character 100 starts a jump action. In FIG. 3, the player character 100 moves upward (character ascending motion). The player character 100 has moved to a position where the height from the ground 120 to the top of the head is HP2. The height HP2 is set equal to the height HC1 of the initial position of the camera 110.

  On the other hand, even if the player character 100 reaches the height HP2 (= HC1) of the initial position of the camera 110, the camera 110 has not moved. The camera 110 captures the player character 100 from the initial height HC1.

  In the state shown in FIG. 3, the game image generation unit shoots the player character 100 performing the character ascending motion from the camera 110 having a constant height (HC1), and shows the state in the virtual game space 40 of the VR headset 38. Show on the display.

  FIG. 4 shows a state in which the player character 100 continues the character rising motion. The player character 100 has moved to a position where the height from the ground 120 to the top of the head is HP3.

  In FIG. 4, as the player character 100 moves upward, the camera 110 also moves upward (viewpoint raising operation) from the initial position. The camera 110 has moved to a height HC2. This position is the highest point of the camera 110 in the jump operation. That is, after the player character 100 starts to move upward (character ascending motion), the camera 110 starts to move upward (viewpoint ascending motion) with a delay. Further, while the player character 100 continues the character ascending motion, the camera 110 ends the viewpoint ascent motion when reaching the height HC2 at the highest point. The speed at which the camera 110 moves from the height HC1 at the initial position to the height HC2 at the highest point is set slower than the rising speed of the player character 100 during that period (see FIG. 7). The camera 110 is installed based on the position of the gazing point 101. For this reason, in order to move the camera 110, first, the gazing point 101 is moved, and a new position of the camera 110 is set based on the position of the moved gazing point 101.

  After the camera 110 starts the viewpoint raising operation from the height HC1 at the initial position and then moves to the height HC2 at the highest point, the game image generation unit shoots the same rising player character 100 from the rising camera 110. The state in the virtual game space 40 is displayed on the display of the VR headset 38.

  FIG. 5 shows a state where the player character 100 has reached the highest point of the jump motion. The player character 100 has moved to a position where the height from the ground 120 to the top of the head is HP4.

  On the other hand, the camera 110 gradually descends (viewpoint return operation) from the height HC2 at the highest point and moves to the height HC3.

  Therefore, the camera 110 gradually descends from the highest point height HC2 to the height HC3 until the player character 100 reaches the highest point HP4 (FIG. 5) from the state at the height HP3 (FIG. 4). is doing. That is, before the player character 100 finishes the (viewpoint raising action), the camera 110 finishes the viewpoint raising action and starts the viewpoint return action. During this time, the game image generation unit shoots the rising player character 100 from the gradually descending camera 110 and displays the state in the virtual game space 40 on the display of the VR headset 38. Note that the absolute value of the speed at which the camera 110 descends is set smaller than the absolute value of the speed at which the player character 100 ascends. That is, the camera 110 moves more slowly than the action of the player character 100. For example, the absolute value of the speed at which the camera 110 descends is set to be smaller than 1/10 of the absolute value of the average speed at which the camera 110 ascends. The average speed at which the camera 110 ascends can be obtained by dividing the distance that the camera 110 moves from the height HC1 at the initial position to the height HC2 at the highest point by the time required for the movement.

  FIG. 6 shows a state where the player character 100 has landed by descending from the highest point of the jump motion to the ground 120 (character descending motion). In FIG. 6, the player character 100 has moved to the original position where the height from the ground 120 to the top of the head is HP1 (see FIG. 2).

  On the other hand, the camera 110 continues to descend gradually (viewpoint return operation) and moves to the height HC4. The height HC4 is lower than the height HC3 of the camera 110 when the player character 100 reaches the highest point.

  That is, the camera 110 is gradually lowered from the height HC3 to the height HC4 until the player character 100 reaches the original position of the height HP1 from the highest point of the height HP4. During this time, the game image generation unit shoots the player character 100 that also descends from the gradually descending camera 110 and displays the state in the virtual game space 40 on the display of the VR headset 38. Note that the camera 110 gradually descends after the player character 100 reaches the original height HP4 (see FIG. 7).

  Next, the camera position control described with reference to FIGS. 2 to 6 will be described with reference to a timing chart. FIG. 7 is a timing chart showing the relationship between the movement of the player character 100 and the movement of the camera position. 7 corresponds to the height from the ground 120 in FIGS. 2 to 6. The horizontal axis (T-axis) represents time (t). The solid line represents the height of the camera 110 from the ground 120, and the broken line represents the height of the player character 100.

  As shown in FIG. 7, the state before the player character 100 performs the jump motion is shown before the time t1. The player character 100 (broken line) is at a position of height HP1 standing on the ground 120, and the camera 110 (solid line) is at a position of height HC1, which is the initial position.

  It is assumed that at time t1, the user performs an operation on the operation element 22A of the controller 20 and executes the jump action of the player character 100. The player character 100 (broken line) moves upward (character ascending motion) from time t1 to time t5, and the height in the Y-axis direction increases.

  On the other hand, even if the player character 100 starts moving upward (character rising action) at time t1, the camera 110 (solid line) does not move from time t1 to time t3. The camera 110 maintains the initial position height HC1.

  At time t2, the player character 100 (broken line) continues to move upward (character rising action), and the height reaches HP2. This height HP2 is equal to the height HC1 of the initial position of the camera 110.

  At time t3, the camera 110 (solid line) starts to move upward (viewpoint raising operation). That is, from time t1 to time t3, the game image generation unit shoots the player character 100 performing the character ascending motion from the camera 110 having a constant height (HC1), and shows the state in the virtual game space 40 in the VR headset. It is displayed on 38 displays.

  At time t4, the player character 100 (broken line) continues to move upward (character rising action). At time t4, the player character 100 has moved to a position where the height HP3 from the ground 120 is reached.

  On the other hand, at time t4, the camera 110 (solid line) has reached the height HC2, which is the highest point of the camera 110 in the jump operation. That is, the camera 110 moves from the height HC1 at the initial position to the height HC2 at the highest point between time t3 and time t4. That is, from time t3 to time t4, the game image generation unit shoots the player character 100 that performs the character ascending motion from the ascending camera 110, and displays the state in the virtual game space 40 on the display of the VR headset 38. To do.

  The speed at which the camera 110 (solid line) moves from the height HC1 at the initial position to the height HC2 at the highest point is set slower than the rising speed of the player character 100 (broken line) during that period. That is, in the section from time t3 to time t4, the slope of the solid line representing the moving speed of the camera 110 is gentler than the slope of the broken line representing the moving speed of the player character 100.

  At time t5, the player character 100 (broken line) has reached the height HP4, which is the highest point of the jump action.

  On the other hand, the camera 110 (solid line) gradually descends (viewpoint return operation) from the height HC2 at the highest point and moves to the height HC3. In other words, from time t4 to time t5, the game image generation unit shoots the player character 100 performing the character ascending motion from the slowly descending camera 110 and displays the state in the virtual game space 40 on the display of the VR headset 38. To display.

  From time t5 to time t6, the player character 100 (broken line) descends from the highest point of the jump motion to the ground 120 (character descending motion). At time t6, the player character 100 has moved to the original position at the height HP1.

  On the other hand, the camera 110 (solid line) gradually descends (viewpoint return operation) from time t5 to time t6 and moves to the height HC4. The camera 110 gradually descends even after the player character 100 reaches the original height HP4, and returns to the height HC1, which is the initial position, at time t7.

[Camera position control when jumping is performed continuously]
Next, the control of the camera position when the jump operation is continuously performed will be described. In FIG. 7, the player character 100 has landed at time t6, and the camera 110 has returned to the initial position (height HC1) at time t7. FIG. 8 is a timing chart when the user operates the operation element 22A of the controller 20 between time t6 and time t7 when the camera 110 has not returned to the initial position (height HC1). 8 corresponds to the height from the ground 120 in FIGS. 2 to 6. The horizontal axis (T-axis) represents time (t). The solid line represents the height of the camera 110 from the ground 120, and the broken line represents the height of the player character 100.

  As shown in FIG. 8, a jump action in which the player character 100 performs a character rising action and a character falling action between time t1 and time t6 is referred to as a first jump action 150A, and the player character 100 moves between time t11 and time t14. A jump operation for performing the character ascending motion and the character descending motion is referred to as a second jump motion 150B. Time t11 is assumed to be a time between time t6 when the player character 100 lands in the first jump action 150A and time t7 when the camera 110 returns to the initial position (height HC1).

  When the user performs an operation on the operation element 22A of the controller 20 at time t11, the second jump action 150B is started, and the player character 100 starts moving upward (character rising action).

  On the other hand, at time t11, the camera 110 has not yet returned to the initial position (height HC1). Therefore, the camera position control unit immediately returns the camera 110 to the initial position (height HC1).

The operation of the second jump operation 150B is the same as the operation of the first jump operation 150A except that the camera 110 is immediately returned to the initial position (height HC1) at time t11. That is, the following operation is performed.
Time t12: The camera 110 (solid line) starts moving upward (viewpoint raising operation) (corresponding to time t3 of the first jump operation 150A).
Time t13: The camera 110 (solid line) reaches the height HC2, which is the highest point of the camera 110 in the jump operation (corresponding to the time t4 of the first jump operation 150A).
Time t14: The player character 100 (broken line) reaches the height HP4 which is the highest point of the jump action (corresponding to the time t5 of the first jump action 150A).
Time t15: The player character 100 moves to the original position having the height HP1 (corresponding to time t6 of the first jump action 150A).
After time t15: The camera 110 gradually descends toward the height HC1, which is the initial position, after time t15.

  With reference to the flowchart of FIG. 9, the control of the player character 100 and the camera position when performing a jump action will be described.

  When the operation of the game system 200 starts (start), the operation detection unit determines whether or not there is an operation on the operation element 22A of the controller 20 (S1). When the operation detection unit detects an operation on the operation element 22A of the controller 20 (YES in S1), the camera position control unit determines whether the camera 110 is in the initial position (returned) (S2). When the camera 110 is in the initial position (YES in S2), the game image generation unit starts moving the player character 100 upward (character raising operation) (S4).

  On the other hand, when the camera 110 is not in the initial position (NO in S2), the camera position control unit immediately returns the camera 110 to the initial position (S5), and the game image generation unit moves the player character 100 upward. (Character raising operation) is started (S4).

  In the above-described embodiment, the 3D game (for VR) has been described. However, the 3D game can be applied to other types of games, and can also be applied to video generation apparatuses and video generation programs other than games. Is possible.

  In this embodiment, when the position of the camera 110 is moved, the positional relationship with the gazing point 101 is kept constant, that is, the position of the camera 110 is maintained at a predetermined angle A3 with respect to a horizontal line passing through the gazing point 101. Although it was raised and lowered in the state (see FIG. 2), it is not limited to this. For example, the position of the camera 110 may be moved while the positional relationship between the camera 110 and the gazing point 101 is changed (the angle A3 is changed), that is, the camera 110 is tilted.

  In this embodiment, the “jump” in which the first direction is up and the second direction is down has been described as an example. However, the present invention can be applied even if the movement is to swing the line of sight. Is possible.

  In the present embodiment, when the camera 110 is raised, the camera 110 is raised from the initial position (height HC1). However, the present invention is not limited to this. For example, the camera 110 may be lowered immediately before reaching the position lower than the initial position (height HC1) before starting to rise.

  Further, in the present embodiment, the timing for raising the camera 110 is set after a predetermined time has elapsed since the player character 100 started moving upward (character raising operation), but is not limited thereto. The timing of raising the camera 110 may be the same as the timing at which the player character 100 starts moving upward (character raising action), for example.

10 game device body 20 controller 100 player character 110 camera

Claims (6)

A method for generating video in a virtual space using a computer,
A first procedure for moving a virtual object in the virtual space in response to a user operation; and
A second procedure for causing a virtual camera to follow the object and generating a video of the object and the virtual space captured by the virtual camera;
The first procedure is a jump procedure for moving the object in a first direction (hereinafter referred to as “rising”) and moving in a second direction opposite to the first direction (hereinafter referred to as “descending”). Including
In the second procedure, the virtual camera is raised following the rise of the object, and after the rise of the virtual camera is finished, the virtual camera is moved at a speed slower than the speed when the virtual camera is raised. When the jump procedure is started again while the virtual camera is being lowered to the height before the start of the lift after the jump procedure is finished, the virtual camera is started to start the lift of the virtual camera. A video generation method including a jump follow-up procedure that instantaneously returns to a previous height and raises the virtual camera again following the rise of the object. A method for generating video in a virtual space using a computer,
A first procedure for moving a virtual object in the virtual space in response to a user operation; and
A second procedure for causing a virtual camera to follow the object and generating a video of the object and the virtual space captured by the virtual camera;
The first procedure is a jump procedure for moving the object in a first direction (hereinafter referred to as “rising”) and moving in a second direction opposite to the first direction (hereinafter referred to as “descending”). Including
In the second procedure, the virtual camera is started to rise later than the rising start timing of the object, and the rising speed is made slower than the rising speed of the object, and the raising of the virtual camera is completed. A video generation method including a jump follow-up procedure that lowers the virtual camera at a speed slower than the speed at which the virtual camera is raised later. A method for generating video in a virtual space using a computer,
A first procedure for moving a virtual object in the virtual space in response to a user operation; and
A second procedure for causing a virtual camera to follow the object and generating a video of the object and the virtual space captured by the virtual camera;
The first procedure is a jump procedure for moving the object in a first direction (hereinafter referred to as “rising”) and moving in a second direction opposite to the first direction (hereinafter referred to as “descending”). Including
In the second procedure, the virtual camera is raised following the rise of the object to finish the rise before the rise of the object is finished, and after the rise of the virtual camera is finished, the virtual camera And a jump follow-up procedure for lowering the virtual camera at a speed slower than the speed at the time of ascent. A method for generating video in a virtual space using a computer,
A first procedure for moving a virtual object in the virtual space in response to a user operation; and
A second procedure for causing a virtual camera to follow the object and generating a video of the object and the virtual space captured by the virtual camera;
In the first procedure, the object is moved in a first direction (hereinafter referred to as “raising”) from a position lower than the virtual camera, and then moved in a second direction opposite to the first direction ( (Hereinafter referred to as “descent”)
In the second procedure, after the object is positioned higher than the virtual camera by the jump procedure, the virtual camera starts to rise following the rise of the object, and after the virtual camera is finished rising, A video generation method including a jump follow-up procedure for lowering the virtual camera at a speed slower than the speed at which the virtual camera is raised. Computer
An image generation program that functions as video generation means for generating video in a virtual space,
The video generation means includes
First means for moving a virtual object in the virtual space in response to a user operation; and
Executing a second means for causing a virtual camera to follow the object and generating an image of the object and the virtual space captured by the virtual camera;
The first means is a jump means for moving the object in a first direction (hereinafter referred to as “rising”) and in a second direction opposite to the first direction (hereinafter referred to as “falling”). Including
The second means raises the virtual camera following the ascent of the object, and after the ascent of the virtual camera is finished, the virtual camera is slower than the ascending speed of the virtual camera. When the jump means is started again while the virtual camera is being lowered to the height before the start of raising after the jump means is finished, the virtual camera is started to rise. A video generation program comprising jump tracking means for instantaneously returning to a previous height and again raising the virtual camera following the rising of the object. An image generation apparatus comprising: a storage unit that stores the program according to claim 5; and a control unit that executes the program stored in the storage unit.

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