Package org.lwjgl.opengles

Class OESViewportArray

java.lang.Object
org.lwjgl.opengles.OESViewportArray
public class OESViewportArray extends Object
Native bindings to the OES_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 ES should draw primitives. Unextended OpenGL ES implementations provide a single viewport per context. In order to draw primitives into multiple viewports, the OpenGL ES 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 ES viewport.

This extension enhances OpenGL ES 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 GLES32, EXT_geometry_shader or OES_geometry_shader.

  • Field Details

    • GL_MAX_VIEWPORTS_OES

      public static final int GL_MAX_VIEWPORTS_OES
      Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
      See Also:

    • GL_VIEWPORT_SUBPIXEL_BITS_OES

      public static final int GL_VIEWPORT_SUBPIXEL_BITS_OES
      Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
      See Also:

    • GL_VIEWPORT_BOUNDS_RANGE_OES

      public static final int GL_VIEWPORT_BOUNDS_RANGE_OES
      Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
      See Also:

    • GL_VIEWPORT_INDEX_PROVOKING_VERTEX_OES

      public static final int GL_VIEWPORT_INDEX_PROVOKING_VERTEX_OES
      Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
      See Also:

  • Method Details

    • nglViewportArrayvOES

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

    • glViewportArrayvOES

      public static void glViewportArrayvOES(int first, FloatBuffer v)

    • glViewportIndexedfOES

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

    • nglViewportIndexedfvOES

      public static void nglViewportIndexedfvOES(int index, long v)

    • glViewportIndexedfvOES

      public static void glViewportIndexedfvOES(int index, FloatBuffer v)

    • nglScissorArrayvOES

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

    • glScissorArrayvOES

      public static void glScissorArrayvOES(int first, IntBuffer v)

    • glScissorIndexedOES

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

    • nglScissorIndexedvOES

      public static void nglScissorIndexedvOES(int index, long v)

    • glScissorIndexedvOES

      public static void glScissorIndexedvOES(int index, IntBuffer v)

    • nglDepthRangeArrayfvOES

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

    • glDepthRangeArrayfvOES

      public static void glDepthRangeArrayfvOES(int first, FloatBuffer v)

    • glDepthRangeIndexedfOES

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

    • nglGetFloati_vOES

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

    • glGetFloati_vOES

      public static void glGetFloati_vOES(int target, int index, FloatBuffer data)

    • glGetFloatiOES

      public static float glGetFloatiOES(int target, int index)

    • glEnableiOES

      public static void glEnableiOES(int target, int index)

    • glDisableiOES

      public static void glDisableiOES(int target, int index)

    • glIsEnablediOES

      public static boolean glIsEnablediOES(int target, int index)

    • glViewportArrayvOES

      public static void glViewportArrayvOES(int first, float[] v)
      Array version of: ViewportArrayvOES

    • glViewportIndexedfvOES

      public static void glViewportIndexedfvOES(int index, float[] v)
      Array version of: ViewportIndexedfvOES

    • glScissorArrayvOES

      public static void glScissorArrayvOES(int first, int[] v)
      Array version of: ScissorArrayvOES

    • glScissorIndexedvOES

      public static void glScissorIndexedvOES(int index, int[] v)
      Array version of: ScissorIndexedvOES

    • glDepthRangeArrayfvOES

      public static void glDepthRangeArrayfvOES(int first, float[] v)
      Array version of: DepthRangeArrayfvOES

    • glGetFloati_vOES

      public static void glGetFloati_vOES(int target, int index, float[] data)
      Array version of: GetFloati_vOES