Package org.lwjgl.opengles

Class EXTBlendFuncExtended

java.lang.Object
org.lwjgl.opengles.EXTBlendFuncExtended
public class EXTBlendFuncExtended extends Object
Native bindings to the EXT_blend_func_extended extension.

This extension provides an ES version of the ARB_blend_func_extended functionality.

Traditional OpenGL includes fixed-function blending that combines source colors with the existing content of a render buffer in a variety of ways. A number of extensions have enhanced this functionality by adding further sources of blending weights and methods to combine them. However, the inputs to the fixed-function blending units are constrained to a source color (as output from fragment shading), destination color (as the current content of the frame buffer) or constants that may be used in their place.

This extension adds new blending functions whereby a fragment shader may output two colors, one of which is treated as the source color, and the other used as a blending factor for either source or destination colors. Furthermore, this extension increases orthogonality by allowing the SRC_ALPHA_SATURATE function to be used as the destination weight.

Because of the limitations of the OpenGL ES 2.0 shading language, new built-in variables (gl_SecondaryFragColorEXT, gl_SecondaryFragDataEXT) are added to the ES 1.00 shading language rather than introduce more complex features for user-defined fragment outputs. Because such built-in variable are deprecated in ES 3.0, these variables are NOT available in the OpenGL ES 3.xx shading language verisons.

  • Field Details

    • GL_SRC1_COLOR_EXT

      public static final int GL_SRC1_COLOR_EXT
      Accepted by the src and dst parameters of BlendFunc and BlendFunciEXT, and by the srcRGB, dstRGB, srcAlpha and dstAlpha parameters of BlendFuncSeparate and BlendFuncSeparateiEXT.
      See Also:

    • GL_SRC1_ALPHA_EXT

      public static final int GL_SRC1_ALPHA_EXT
      Accepted by the src and dst parameters of BlendFunc and BlendFunciEXT, and by the srcRGB, dstRGB, srcAlpha and dstAlpha parameters of BlendFuncSeparate and BlendFuncSeparateiEXT.
      See Also:

    • GL_ONE_MINUS_SRC1_COLOR_EXT

      public static final int GL_ONE_MINUS_SRC1_COLOR_EXT
      Accepted by the src and dst parameters of BlendFunc and BlendFunciEXT, and by the srcRGB, dstRGB, srcAlpha and dstAlpha parameters of BlendFuncSeparate and BlendFuncSeparateiEXT.
      See Also:

    • GL_ONE_MINUS_SRC1_ALPHA_EXT

      public static final int GL_ONE_MINUS_SRC1_ALPHA_EXT
      Accepted by the src and dst parameters of BlendFunc and BlendFunciEXT, and by the srcRGB, dstRGB, srcAlpha and dstAlpha parameters of BlendFuncSeparate and BlendFuncSeparateiEXT.
      See Also:

    • GL_SRC_ALPHA_SATURATE_EXT

      public static final int GL_SRC_ALPHA_SATURATE_EXT
      Accepted by the src and dst parameters of BlendFunc and BlendFunciEXT, and by the srcRGB, dstRGB, srcAlpha and dstAlpha parameters of BlendFuncSeparate and BlendFuncSeparateiEXT.
      See Also:

    • GL_LOCATION_INDEX_EXT

      public static final int GL_LOCATION_INDEX_EXT
      Accepted in the props array of GetProgramResourceiv.
      See Also:

    • GL_MAX_DUAL_SOURCE_DRAW_BUFFERS_EXT

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

  • Method Details

    • nglBindFragDataLocationIndexedEXT

      public static void nglBindFragDataLocationIndexedEXT(int program, int colorNumber, int index, long name)

    • glBindFragDataLocationIndexedEXT

      public static void glBindFragDataLocationIndexedEXT(int program, int colorNumber, int index, ByteBuffer name)

    • glBindFragDataLocationIndexedEXT

      public static void glBindFragDataLocationIndexedEXT(int program, int colorNumber, int index, CharSequence name)

    • nglGetFragDataIndexEXT

      public static int nglGetFragDataIndexEXT(int program, long name)

    • glGetFragDataIndexEXT

      public static int glGetFragDataIndexEXT(int program, ByteBuffer name)

    • glGetFragDataIndexEXT

      public static int glGetFragDataIndexEXT(int program, CharSequence name)

    • nglBindFragDataLocationEXT

      public static void nglBindFragDataLocationEXT(int program, int colorNumber, long name)

    • glBindFragDataLocationEXT

      public static void glBindFragDataLocationEXT(int program, int colorNumber, ByteBuffer name)

    • glBindFragDataLocationEXT

      public static void glBindFragDataLocationEXT(int program, int colorNumber, CharSequence name)

    • nglGetProgramResourceLocationIndexEXT

      public static int nglGetProgramResourceLocationIndexEXT(int program, int programInterface, long name)

    • glGetProgramResourceLocationIndexEXT

      public static int glGetProgramResourceLocationIndexEXT(int program, int programInterface, ByteBuffer name)

    • glGetProgramResourceLocationIndexEXT

      public static int glGetProgramResourceLocationIndexEXT(int program, int programInterface, CharSequence name)