oivInstancing.h File Reference

This file contains fonction to access instancing parameters. More...

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Functions
void	OivInstancingInit ()
	Initialize instancing.
int	OivInstanceID ()
	Get the current instance ID when using multiple instance.
vec3	OivInstanceTranslation ()
	Get the translation vector to apply to the current geometry instance.
vec3	OivInstanceScale ()
	Get the scale vector to apply to the current geometry instance.
vec4	OivInstanceRotation ()
	Get the rotation (i.e.
mat4	OivInstanceMatrix ()
	Get the transformation matrix to apply to the current geometry instance, i.e., the combination of instance rotation, scale and translation.
mat4	OivInstancingGlobalModelMatrix ()
	Get the model matrix without instancing transformations i.e., the model matrix at the SoMultipleInstance node level.

Detailed Description

This file contains fonction to access instancing parameters.

Definition in file oivInstancing.h.

Function Documentation

OivInstanceID()

int OivInstanceID

(

)

Get the current instance ID when using multiple instance.

Returns

the shape instance ID.

OivInstanceMatrix()

mat4 OivInstanceMatrix

(

)

Get the transformation matrix to apply to the current geometry instance, i.e., the combination of instance rotation, scale and translation.

Returns

the shape instance transformation matrix.

OivInstanceRotation()

vec4 OivInstanceRotation

(

)

Get the rotation (i.e.

a quaternion) to apply to the current geometry instance.

Returns

the shape instance rotation

OivInstanceScale()

vec3 OivInstanceScale

(

)

Get the scale vector to apply to the current geometry instance.

Returns

the shape instance scale.

OivInstanceTranslation()

vec3 OivInstanceTranslation

(

)

Get the translation vector to apply to the current geometry instance.

Returns

the shape instance translation.

OivInstancingGlobalModelMatrix()

mat4 OivInstancingGlobalModelMatrix

(

)

Get the model matrix without instancing transformations i.e., the model matrix at the SoMultipleInstance node level.

OivInstancingInit()

void OivInstancingInit

(

)

Initialize instancing.

Must be called when doing instancing.