public class EXTClearTexture
extends java.lang.Object
Texture objects are fundamental to the operation of OpenGL. They are used as a source for texture sampling and destination for rendering as well as
being accessed in shaders for image load/store operations It is also possible to invalidate the contents of a texture. It is currently only possible to
set texture image data to known values by uploading some or all of a image array from application memory or by attaching it to a framebuffer object and
using the Clear or ClearBuffer commands.
Both uploading initial texture data and clearing by attaching to a framebuffer have potential disadvantages when one simply wants to initialize texture data to a known value. Uploading initial data requires the application to allocate a (potentially large) chunk of memory and transferring that to the GL. This can be a costly operation both in terms of memory bandwidth and power usage. Alternatively, attaching a texture level to a framebuffer to clear it may not be possible if the texture format isn't supported for rendering, or even if it is, attaching the image to a framebuffer object may cause the texture to be allocated in certain types of memory, which it may otherwise not need to be placed in.
This extension solves these problems by providing a mechanism whereby the contents of a texture image array can be set to known values by using the
ClearTexImageEXT or ClearTexSubImageEXT commands. These commands can also be useful for initializing an image that will be used for atomic shader
operations.
Requires GLES 3.1.
| Modifier and Type | Method and Description |
|---|---|
static void |
glClearTexImageEXT(int texture,
int level,
int format,
int type,
java.nio.ByteBuffer data) |
static void |
glClearTexImageEXT(int texture,
int level,
int format,
int type,
float[] data)
Array version of:
ClearTexImageEXT |
static void |
glClearTexImageEXT(int texture,
int level,
int format,
int type,
java.nio.FloatBuffer data) |
static void |
glClearTexImageEXT(int texture,
int level,
int format,
int type,
int[] data)
Array version of:
ClearTexImageEXT |
static void |
glClearTexImageEXT(int texture,
int level,
int format,
int type,
java.nio.IntBuffer data) |
static void |
glClearTexImageEXT(int texture,
int level,
int format,
int type,
short[] data)
Array version of:
ClearTexImageEXT |
static void |
glClearTexImageEXT(int texture,
int level,
int format,
int type,
java.nio.ShortBuffer data) |
static void |
glClearTexSubImageEXT(int texture,
int level,
int xoffset,
int yoffset,
int zoffset,
int width,
int height,
int depth,
int format,
int type,
java.nio.ByteBuffer data) |
static void |
glClearTexSubImageEXT(int texture,
int level,
int xoffset,
int yoffset,
int zoffset,
int width,
int height,
int depth,
int format,
int type,
float[] data)
Array version of:
ClearTexSubImageEXT |
static void |
glClearTexSubImageEXT(int texture,
int level,
int xoffset,
int yoffset,
int zoffset,
int width,
int height,
int depth,
int format,
int type,
java.nio.FloatBuffer data) |
static void |
glClearTexSubImageEXT(int texture,
int level,
int xoffset,
int yoffset,
int zoffset,
int width,
int height,
int depth,
int format,
int type,
int[] data)
Array version of:
ClearTexSubImageEXT |
static void |
glClearTexSubImageEXT(int texture,
int level,
int xoffset,
int yoffset,
int zoffset,
int width,
int height,
int depth,
int format,
int type,
java.nio.IntBuffer data) |
static void |
glClearTexSubImageEXT(int texture,
int level,
int xoffset,
int yoffset,
int zoffset,
int width,
int height,
int depth,
int format,
int type,
short[] data)
Array version of:
ClearTexSubImageEXT |
static void |
glClearTexSubImageEXT(int texture,
int level,
int xoffset,
int yoffset,
int zoffset,
int width,
int height,
int depth,
int format,
int type,
java.nio.ShortBuffer data) |
static void |
nglClearTexImageEXT(int texture,
int level,
int format,
int type,
long data) |
static void |
nglClearTexSubImageEXT(int texture,
int level,
int xoffset,
int yoffset,
int zoffset,
int width,
int height,
int depth,
int format,
int type,
long data) |
public static void nglClearTexImageEXT(int texture,
int level,
int format,
int type,
long data)
public static void glClearTexImageEXT(int texture,
int level,
int format,
int type,
@Nullable
java.nio.ByteBuffer data)
public static void glClearTexImageEXT(int texture,
int level,
int format,
int type,
@Nullable
java.nio.ShortBuffer data)
public static void glClearTexImageEXT(int texture,
int level,
int format,
int type,
@Nullable
java.nio.IntBuffer data)
public static void glClearTexImageEXT(int texture,
int level,
int format,
int type,
@Nullable
java.nio.FloatBuffer data)
public static void nglClearTexSubImageEXT(int texture,
int level,
int xoffset,
int yoffset,
int zoffset,
int width,
int height,
int depth,
int format,
int type,
long data)
public static void glClearTexSubImageEXT(int texture,
int level,
int xoffset,
int yoffset,
int zoffset,
int width,
int height,
int depth,
int format,
int type,
@Nullable
java.nio.ByteBuffer data)
public static void glClearTexSubImageEXT(int texture,
int level,
int xoffset,
int yoffset,
int zoffset,
int width,
int height,
int depth,
int format,
int type,
@Nullable
java.nio.ShortBuffer data)
public static void glClearTexSubImageEXT(int texture,
int level,
int xoffset,
int yoffset,
int zoffset,
int width,
int height,
int depth,
int format,
int type,
@Nullable
java.nio.IntBuffer data)
public static void glClearTexSubImageEXT(int texture,
int level,
int xoffset,
int yoffset,
int zoffset,
int width,
int height,
int depth,
int format,
int type,
@Nullable
java.nio.FloatBuffer data)
public static void glClearTexImageEXT(int texture,
int level,
int format,
int type,
@Nullable
short[] data)
ClearTexImageEXTpublic static void glClearTexImageEXT(int texture,
int level,
int format,
int type,
@Nullable
int[] data)
ClearTexImageEXTpublic static void glClearTexImageEXT(int texture,
int level,
int format,
int type,
@Nullable
float[] data)
ClearTexImageEXTpublic static void glClearTexSubImageEXT(int texture,
int level,
int xoffset,
int yoffset,
int zoffset,
int width,
int height,
int depth,
int format,
int type,
@Nullable
short[] data)
ClearTexSubImageEXTpublic static void glClearTexSubImageEXT(int texture,
int level,
int xoffset,
int yoffset,
int zoffset,
int width,
int height,
int depth,
int format,
int type,
@Nullable
int[] data)
ClearTexSubImageEXTpublic static void glClearTexSubImageEXT(int texture,
int level,
int xoffset,
int yoffset,
int zoffset,
int width,
int height,
int depth,
int format,
int type,
@Nullable
float[] data)
ClearTexSubImageEXTCopyright LWJGL. All Rights Reserved. License terms.