QCOMTextureFoveated (LWJGL 3.2.4 SNAPSHOT

java.lang.Object
- org.lwjgl.opengles.QCOMTextureFoveated

```
public class QCOMTextureFoveated
extends java.lang.Object
```
Native bindings to the QCOM_texture_foveated extension.
Foveated rendering is a technique that aims to reduce fragment processing workload and bandwidth by reducing the average resolution of a render target. Perceived image quality is kept high by leaving the focal point of rendering at full resolution.

It exists in two major forms:
- Static foveated (lens matched) rendering: where the gaze point is fixed with a large fovea region and designed to match up with the lens characteristics.
- Eye-tracked foveated rendering: where the gaze point is continuously tracked by a sensor to allow a smaller fovea region (further reducing average resolution)
Traditionally foveated rendering involves breaking a render target's area into smaller regions such as bins, tiles, viewports, or layers which are rendered to individually. Each of these regions has the geometry projected or scaled differently so that the net resolution of these layers is less than the original render target's resolution. When these regions are mapped back to the original render target, they create a rendered result with decreased quality as pixels get further from the focal point.

Foveated rendering is currently achieved by large modifications to an applications render pipelines to manually implement the required geometry amplifications, blits, and projection changes. This presents a large implementation cost to an application developer and is generally inefficient as it can not make use of a platforms unique hardware features or optimized software paths. This extension aims to address these problems by exposing foveated rendering in an explicit and vendor neutral way, and by providing an interface with minimal changes to how an application specifies its render targets.

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`GL_FOVEATION_ENABLE_BIT_QCOM` Accepted as a value to `param` for the TexParameter{if} and to `params` for the TexParameter{if}v commands with a `pname` of `TEXTURE_FOVEATED_FEATURE_BITS_QCOM`; returned as possible values for `params` when GetTexParameter{if}v is queried with a `pname` of `TEXTURE_FOVEATED_FEATURE_BITS_QCOM`.
`static int`	`GL_FOVEATION_SCALED_BIN_METHOD_BIT_QCOM` Accepted as a value to `param` for the TexParameter{if} and to `params` for the TexParameter{if}v commands with a `pname` of `TEXTURE_FOVEATED_FEATURE_BITS_QCOM`; returned as possible values for `params` when GetTexParameter{if}v is queried with a `pname` of `TEXTURE_FOVEATED_FEATURE_BITS_QCOM`.
`static int`	`GL_FRAMEBUFFER_INCOMPLETE_FOVEATION_QCOM` Returned by `CheckFramebufferStatus`.
`static int`	`GL_TEXTURE_FOVEATED_FEATURE_BITS_QCOM` Accepted as a value for `pname` for the TexParameter{if} and TexParameter{if}v commands and for the `pname` parameter of GetTexParameter{if}v.
`static int`	`GL_TEXTURE_FOVEATED_FEATURE_QUERY_QCOM` Accepted as the `pname` parameter of GetTexParameter{if}v.
`static int`	`GL_TEXTURE_FOVEATED_MIN_PIXEL_DENSITY_QCOM` Accepted as a value for `pname` for the TexParameter{if} and TexParameter{if}v commands and for the `pname` parameter of GetTexParameter{if}v.
`static int`	`GL_TEXTURE_FOVEATED_NUM_FOCAL_POINTS_QUERY_QCOM` Accepted as the `pname` parameter of GetTexParameter{if}v.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static void`	`glTextureFoveationParametersQCOM(int texture, int layer, int focalPoint, float focalX, float focalY, float gainX, float gainY, float foveaArea)`

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - GL_TEXTURE_FOVEATED_FEATURE_BITS_QCOM
```
public static final int GL_TEXTURE_FOVEATED_FEATURE_BITS_QCOM
```
    Accepted as a value for pname for the TexParameter{if} and TexParameter{if}v commands and for the pname parameter of GetTexParameter{if}v.
    
    See Also:
    
    Constant Field Values
  - GL_TEXTURE_FOVEATED_MIN_PIXEL_DENSITY_QCOM
```
public static final int GL_TEXTURE_FOVEATED_MIN_PIXEL_DENSITY_QCOM
```
    Accepted as a value for pname for the TexParameter{if} and TexParameter{if}v commands and for the pname parameter of GetTexParameter{if}v.
    
    See Also:
    
    Constant Field Values
  - GL_TEXTURE_FOVEATED_FEATURE_QUERY_QCOM
```
public static final int GL_TEXTURE_FOVEATED_FEATURE_QUERY_QCOM
```
    Accepted as the pname parameter of GetTexParameter{if}v.
    
    See Also:
    
    Constant Field Values
  - GL_TEXTURE_FOVEATED_NUM_FOCAL_POINTS_QUERY_QCOM
```
public static final int GL_TEXTURE_FOVEATED_NUM_FOCAL_POINTS_QUERY_QCOM
```
    Accepted as the pname parameter of GetTexParameter{if}v.
    
    See Also:
    
    Constant Field Values
  - GL_FOVEATION_ENABLE_BIT_QCOM
```
public static final int GL_FOVEATION_ENABLE_BIT_QCOM
```
    Accepted as a value to param for the TexParameter{if} and to params for the TexParameter{if}v commands with a pname of TEXTURE_FOVEATED_FEATURE_BITS_QCOM; returned as possible values for params when GetTexParameter{if}v is queried with a pname of TEXTURE_FOVEATED_FEATURE_BITS_QCOM.
    
    See Also:
    
    Constant Field Values
  - GL_FOVEATION_SCALED_BIN_METHOD_BIT_QCOM
```
public static final int GL_FOVEATION_SCALED_BIN_METHOD_BIT_QCOM
```
    Accepted as a value to param for the TexParameter{if} and to params for the TexParameter{if}v commands with a pname of TEXTURE_FOVEATED_FEATURE_BITS_QCOM; returned as possible values for params when GetTexParameter{if}v is queried with a pname of TEXTURE_FOVEATED_FEATURE_BITS_QCOM.
    
    See Also:
    
    Constant Field Values
  - GL_FRAMEBUFFER_INCOMPLETE_FOVEATION_QCOM
```
public static final int GL_FRAMEBUFFER_INCOMPLETE_FOVEATION_QCOM
```
    Returned by CheckFramebufferStatus.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - glTextureFoveationParametersQCOM
```
public static void glTextureFoveationParametersQCOM(int texture,
                                                    int layer,
                                                    int focalPoint,
                                                    float focalX,
                                                    float focalY,
                                                    float gainX,
                                                    float gainY,
                                                    float foveaArea)
```

Class QCOMTextureFoveated

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

GL_TEXTURE_FOVEATED_FEATURE_BITS_QCOM

GL_TEXTURE_FOVEATED_MIN_PIXEL_DENSITY_QCOM

GL_TEXTURE_FOVEATED_FEATURE_QUERY_QCOM

GL_TEXTURE_FOVEATED_NUM_FOCAL_POINTS_QUERY_QCOM

GL_FOVEATION_ENABLE_BIT_QCOM

GL_FOVEATION_SCALED_BIN_METHOD_BIT_QCOM

GL_FRAMEBUFFER_INCOMPLETE_FOVEATION_QCOM

Method Detail

glTextureFoveationParametersQCOM