org.lwjgl.opengles

Class NVViewportArray

java.lang.Object

org.lwjgl.opengles.NVViewportArray

public class NVViewportArray
extends java.lang.Object

Native bindings to the NV_viewport_array extension.

OpenGL ES is modeled on a pipeline of operations. The final stage in this pipeline before rasterization is the viewport transformation. This stage transforms vertices from view space into window coordinates and allows the application to specify a rectangular region of screen space into which OpenGL should draw primitives. Unextended OpenGL implementations provide a single viewport per context. In order to draw primitives into multiple viewports, the OpenGL viewport may be changed between several draw calls. With the advent of Geometry Shaders, it has become possible for an application to amplify geometry and produce multiple output primitives for each primitive input to the Geometry Shader. It is possible to direct these primitives to render into a selected render target. However, all render targets share the same, global OpenGL viewport.

This extension enhances OpenGL by providing a mechanism to expose multiple viewports. Each viewport is specified as a rectangle. The destination viewport may be selected per-primitive by the geometry shader. This allows the Geometry Shader to produce different versions of primitives destined for separate viewport rectangles on the same surface. Additionally, when combined with multiple framebuffer attachments, it allows a different viewport rectangle to be selected for each. This extension also exposes a separate scissor rectangle for each viewport. Finally, the viewport bounds are now floating point quantities allowing fractional pixel offsets to be applied during the viewport transform.

Requires GLES 3.1 and EXT_geometry_shader.

Field Summary

Fields

Modifier and Type	Field and Description
static int	GL_MAX_VIEWPORTS_NV Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
static int	GL_VIEWPORT_BOUNDS_RANGE_NV Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
static int	GL_VIEWPORT_INDEX_PROVOKING_VERTEX_NV Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
static int	GL_VIEWPORT_SUBPIXEL_BITS_NV Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

Method Summary

Modifier and Type	Method and Description
static void	glDepthRangeArrayfvNV(int first, float[] v) Array version of: DepthRangeArrayfvNV
static void	glDepthRangeArrayfvNV(int first, java.nio.FloatBuffer v)
static void	glDepthRangeIndexedfNV(int index, float n, float f)
static void	glDisableiNV(int target, int index)
static void	glEnableiNV(int target, int index)
static void	glGetFloati_vNV(int target, int index, float[] data) Array version of: GetFloati_vNV
static void	glGetFloati_vNV(int target, int index, java.nio.FloatBuffer data)
static float	glGetFloatiNV(int target, int index)
static boolean	glIsEnablediNV(int target, int index)
static void	glScissorArrayvNV(int first, int[] v) Array version of: ScissorArrayvNV
static void	glScissorArrayvNV(int first, java.nio.IntBuffer v)
static void	glScissorIndexedNV(int index, int left, int bottom, int width, int height)
static void	glScissorIndexedvNV(int index, int[] v) Array version of: ScissorIndexedvNV
static void	glScissorIndexedvNV(int index, java.nio.IntBuffer v)
static void	glViewportArrayvNV(int first, float[] v) Array version of: ViewportArrayvNV
static void	glViewportArrayvNV(int first, java.nio.FloatBuffer v)
static void	glViewportIndexedfNV(int index, float x, float y, float w, float h)
static void	glViewportIndexedfvNV(int index, float[] v) Array version of: ViewportIndexedfvNV
static void	glViewportIndexedfvNV(int index, java.nio.FloatBuffer v)
static void	nglDepthRangeArrayfvNV(int first, int count, long v)
static void	nglGetFloati_vNV(int target, int index, long data)
static void	nglScissorArrayvNV(int first, int count, long v)
static void	nglScissorIndexedvNV(int index, long v)
static void	nglViewportArrayvNV(int first, int count, long v)
static void	nglViewportIndexedfvNV(int index, long v)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

GL_MAX_VIEWPORTS_NV

public static final int GL_MAX_VIEWPORTS_NV

Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

See Also:

Constant Field Values

GL_VIEWPORT_SUBPIXEL_BITS_NV

public static final int GL_VIEWPORT_SUBPIXEL_BITS_NV

Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

See Also:

Constant Field Values

GL_VIEWPORT_BOUNDS_RANGE_NV

public static final int GL_VIEWPORT_BOUNDS_RANGE_NV

Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

See Also:

Constant Field Values

GL_VIEWPORT_INDEX_PROVOKING_VERTEX_NV

public static final int GL_VIEWPORT_INDEX_PROVOKING_VERTEX_NV

Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

See Also:

Constant Field Values

Method Detail

nglViewportArrayvNV

public static void nglViewportArrayvNV(int first,
                                       int count,
                                       long v)

glViewportArrayvNV

public static void glViewportArrayvNV(int first,
                                      java.nio.FloatBuffer v)

glViewportIndexedfNV

public static void glViewportIndexedfNV(int index,
                                        float x,
                                        float y,
                                        float w,
                                        float h)

nglViewportIndexedfvNV

public static void nglViewportIndexedfvNV(int index,
                                          long v)

glViewportIndexedfvNV

public static void glViewportIndexedfvNV(int index,
                                         java.nio.FloatBuffer v)

nglScissorArrayvNV

public static void nglScissorArrayvNV(int first,
                                      int count,
                                      long v)

glScissorArrayvNV

public static void glScissorArrayvNV(int first,
                                     java.nio.IntBuffer v)

glScissorIndexedNV

public static void glScissorIndexedNV(int index,
                                      int left,
                                      int bottom,
                                      int width,
                                      int height)

nglScissorIndexedvNV

public static void nglScissorIndexedvNV(int index,
                                        long v)

glScissorIndexedvNV

public static void glScissorIndexedvNV(int index,
                                       java.nio.IntBuffer v)

nglDepthRangeArrayfvNV

public static void nglDepthRangeArrayfvNV(int first,
                                          int count,
                                          long v)

glDepthRangeArrayfvNV

public static void glDepthRangeArrayfvNV(int first,
                                         java.nio.FloatBuffer v)

glDepthRangeIndexedfNV

public static void glDepthRangeIndexedfNV(int index,
                                          float n,
                                          float f)

nglGetFloati_vNV

public static void nglGetFloati_vNV(int target,
                                    int index,
                                    long data)

glGetFloati_vNV

public static void glGetFloati_vNV(int target,
                                   int index,
                                   java.nio.FloatBuffer data)

glGetFloatiNV

public static float glGetFloatiNV(int target,
                                  int index)

glEnableiNV

public static void glEnableiNV(int target,
                               int index)

glDisableiNV

public static void glDisableiNV(int target,
                                int index)

glIsEnablediNV

public static boolean glIsEnablediNV(int target,
                                     int index)

glViewportArrayvNV

public static void glViewportArrayvNV(int first,
                                      float[] v)

Array version of: ViewportArrayvNV

glViewportIndexedfvNV

public static void glViewportIndexedfvNV(int index,
                                         float[] v)

Array version of: ViewportIndexedfvNV

glScissorArrayvNV

public static void glScissorArrayvNV(int first,
                                     int[] v)

Array version of: ScissorArrayvNV

glScissorIndexedvNV

public static void glScissorIndexedvNV(int index,
                                       int[] v)

Array version of: ScissorIndexedvNV

glDepthRangeArrayfvNV

public static void glDepthRangeArrayfvNV(int first,
                                         float[] v)

Array version of: DepthRangeArrayfvNV

glGetFloati_vNV

public static void glGetFloati_vNV(int target,
                                   int index,
                                   float[] data)

Array version of: GetFloati_vNV