LWJGL 3.3.3 · org.lwjgl.opengles.EXTGeometryShader

Native bindings to the EXT_geometry_shader extension.

EXT_geometry_shader defines a new shader type available to be run on the GPU, called a geometry shader. Geometry shaders are run after vertices are transformed, but prior to color clamping, flatshading and clipping.

A geometry shader begins with a single primitive (point, line, triangle). It can read the attributes of any of the vertices in the primitive and use them to generate new primitives. A geometry shader has a fixed output primitive type (point, line strip, or triangle strip) and emits vertices to define a new primitive. A geometry shader can emit multiple disconnected primitives. The primitives emitted by the geometry shader are clipped and then processed like an equivalent primitive specified by the application.

Furthermore, EXT_geometry_shader provides four additional primitive types: lines with adjacency, line strips with adjacency, separate triangles with adjacency, and triangle strips with adjacency. Some of the vertices specified in these new primitive types are not part of the ordinary primitives, instead they represent neighboring vertices that are adjacent to the two line segment end points (lines/strips) or the three triangle edges (triangles/tstrips). These vertices can be accessed by geometry shaders and used to match up the vertices emitted by the geometry shader with those of neighboring primitives.

Since geometry shaders expect a specific input primitive type, an error will occur if the application presents primitives of a different type. For example, if a geometry shader expects points, an error will occur at drawing time if a primitive mode of TRIANGLES is specified.

This extension also adds the notion of layered framebuffer attachments and framebuffers that can be used in conjunction with geometry shaders to allow programs to direct primitives to a face of a cube map or layer of a three-dimensional texture or two-dimensional array texture. The layer used for rendering can be selected by the geometry shader at run time. The framebuffer layer count present in GL 4.x and removed from ES 3.1 is restored.

Not all geometry shader implementations have the ability to write the point size from a geometry shader. Thus a second extension string and shading language enable are provided for implementations which do support geometry shader point size.

This extension relies on the EXT_shader_io_blocks extension to provide the required functionality for declaring input and output blocks and interfacing between shaders.

Requires GLES 3.1.

Field Summary

Modifier and Type	Field and Description
public static final int	GL_FIRST_VERTEX_CONVENTION_EXT Returned in the `data` parameter from a Get query with a `pname` of LAYER_PROVOKING_VERTEX_EXT.
public static final int	GL_FRAMEBUFFER_ATTACHMENT_LAYERED_EXT Accepted by the `pname` parameter of GetFramebufferAttachmentParameteriv.
public static final int	GL_FRAMEBUFFER_DEFAULT_LAYERS_EXT Accepted by the `pname` parameter of FramebufferParameteri, and GetFramebufferParameteriv.
public static final int	GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS_EXT Returned by CheckFramebufferStatus.
public static final int	GL_GEOMETRY_LINKED_INPUT_TYPE_EXT Accepted by the `pname` parameter of GetProgramiv.
public static final int	GL_GEOMETRY_LINKED_OUTPUT_TYPE_EXT Accepted by the `pname` parameter of GetProgramiv.
public static final int	GL_GEOMETRY_LINKED_VERTICES_OUT_EXT Accepted by the `pname` parameter of GetProgramiv.
public static final int	GL_GEOMETRY_SHADER_BIT_EXT Accepted by the `stages` parameter of UseProgramStages.
public static final int	GL_GEOMETRY_SHADER_EXT Accepted by the `type` parameter of CreateShader and CreateShaderProgramv, by the `pname` parameter of GetProgramPipelineiv and returned in the `params` parameter of GetShaderiv when `pname` is SHADER_TYPE.
public static final int	GL_GEOMETRY_SHADER_INVOCATIONS_EXT Accepted by the `pname` parameter of GetProgramiv.
public static final int	GL_LAST_VERTEX_CONVENTION_EXT Returned in the `data` parameter from a Get query with a `pname` of LAYER_PROVOKING_VERTEX_EXT.
public static final int	GL_LAYER_PROVOKING_VERTEX_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
public static final int	GL_LINE_STRIP_ADJACENCY_EXT Accepted by the `mode` parameter of DrawArrays, DrawElements, and other commands which draw primitives.
public static final int	GL_LINES_ADJACENCY_EXT Accepted by the `mode` parameter of DrawArrays, DrawElements, and other commands which draw primitives.
public static final int	GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
public static final int	GL_MAX_FRAMEBUFFER_LAYERS_EXT Accepted by the `pname` parameter of GetIntegerv, GetBooleanv, GetInteger64v, and GetFloatv.
public static final int	GL_MAX_GEOMETRY_ATOMIC_COUNTER_BUFFERS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
public static final int	GL_MAX_GEOMETRY_ATOMIC_COUNTERS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
public static final int	GL_MAX_GEOMETRY_IMAGE_UNIFORMS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
public static final int	GL_MAX_GEOMETRY_INPUT_COMPONENTS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
public static final int	GL_MAX_GEOMETRY_OUTPUT_COMPONENTS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
public static final int	GL_MAX_GEOMETRY_OUTPUT_VERTICES_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
public static final int	GL_MAX_GEOMETRY_SHADER_INVOCATIONS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
public static final int	GL_MAX_GEOMETRY_SHADER_STORAGE_BLOCKS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
public static final int	GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
public static final int	GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
public static final int	GL_MAX_GEOMETRY_UNIFORM_BLOCKS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
public static final int	GL_MAX_GEOMETRY_UNIFORM_COMPONENTS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.
public static final int	GL_PRIMITIVES_GENERATED_EXT Accepted by the `target` parameter of BeginQuery, EndQuery, GetQueryiv, and GetQueryObjectuiv.
public static final int	GL_REFERENCED_BY_GEOMETRY_SHADER_EXT Accepted by the `props` parameter of GetProgramResourceiv.
public static final int	GL_TRIANGLE_STRIP_ADJACENCY_EXT Accepted by the `mode` parameter of DrawArrays, DrawElements, and other commands which draw primitives.
public static final int	GL_TRIANGLES_ADJACENCY_EXT Accepted by the `mode` parameter of DrawArrays, DrawElements, and other commands which draw primitives.
public static final int	GL_UNDEFINED_VERTEX_EXT Returned in the `data` parameter from a Get query with a `pname` of LAYER_PROVOKING_VERTEX_EXT.

Access	Constructor and Description
protected	EXTGeometryShader()

Method Summary

Modifier and Type	Method and Description
public static native void	glFramebufferTextureEXT(int target, int attachment, int texture, int level)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

GL_FIRST_VERTEX_CONVENTION_EXT	back to summary
public static final int GL_FIRST_VERTEX_CONVENTION_EXT Returned in the `data` parameter from a Get query with a `pname` of LAYER_PROVOKING_VERTEX_EXT.

GL_FRAMEBUFFER_ATTACHMENT_LAYERED_EXT	back to summary
public static final int GL_FRAMEBUFFER_ATTACHMENT_LAYERED_EXT Accepted by the `pname` parameter of GetFramebufferAttachmentParameteriv.

GL_FRAMEBUFFER_DEFAULT_LAYERS_EXT	back to summary
public static final int GL_FRAMEBUFFER_DEFAULT_LAYERS_EXT Accepted by the `pname` parameter of FramebufferParameteri, and GetFramebufferParameteriv.

GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS_EXT	back to summary
public static final int GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS_EXT Returned by CheckFramebufferStatus.

GL_GEOMETRY_LINKED_INPUT_TYPE_EXT	back to summary
public static final int GL_GEOMETRY_LINKED_INPUT_TYPE_EXT Accepted by the `pname` parameter of GetProgramiv.

GL_GEOMETRY_LINKED_OUTPUT_TYPE_EXT	back to summary
public static final int GL_GEOMETRY_LINKED_OUTPUT_TYPE_EXT Accepted by the `pname` parameter of GetProgramiv.

GL_GEOMETRY_LINKED_VERTICES_OUT_EXT	back to summary
public static final int GL_GEOMETRY_LINKED_VERTICES_OUT_EXT Accepted by the `pname` parameter of GetProgramiv.

GL_GEOMETRY_SHADER_BIT_EXT	back to summary
public static final int GL_GEOMETRY_SHADER_BIT_EXT Accepted by the `stages` parameter of UseProgramStages.

GL_GEOMETRY_SHADER_EXT	back to summary
public static final int GL_GEOMETRY_SHADER_EXT Accepted by the `type` parameter of CreateShader and CreateShaderProgramv, by the `pname` parameter of GetProgramPipelineiv and returned in the `params` parameter of GetShaderiv when `pname` is SHADER_TYPE.

GL_GEOMETRY_SHADER_INVOCATIONS_EXT	back to summary
public static final int GL_GEOMETRY_SHADER_INVOCATIONS_EXT Accepted by the `pname` parameter of GetProgramiv.

GL_LAST_VERTEX_CONVENTION_EXT	back to summary
public static final int GL_LAST_VERTEX_CONVENTION_EXT Returned in the `data` parameter from a Get query with a `pname` of LAYER_PROVOKING_VERTEX_EXT.

GL_LAYER_PROVOKING_VERTEX_EXT	back to summary
public static final int GL_LAYER_PROVOKING_VERTEX_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

GL_LINE_STRIP_ADJACENCY_EXT	back to summary
public static final int GL_LINE_STRIP_ADJACENCY_EXT Accepted by the `mode` parameter of DrawArrays, DrawElements, and other commands which draw primitives.

GL_LINES_ADJACENCY_EXT	back to summary
public static final int GL_LINES_ADJACENCY_EXT Accepted by the `mode` parameter of DrawArrays, DrawElements, and other commands which draw primitives.

GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS_EXT	back to summary
public static final int GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

GL_MAX_FRAMEBUFFER_LAYERS_EXT	back to summary
public static final int GL_MAX_FRAMEBUFFER_LAYERS_EXT Accepted by the `pname` parameter of GetIntegerv, GetBooleanv, GetInteger64v, and GetFloatv.

GL_MAX_GEOMETRY_ATOMIC_COUNTER_BUFFERS_EXT	back to summary
public static final int GL_MAX_GEOMETRY_ATOMIC_COUNTER_BUFFERS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

GL_MAX_GEOMETRY_ATOMIC_COUNTERS_EXT	back to summary
public static final int GL_MAX_GEOMETRY_ATOMIC_COUNTERS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

GL_MAX_GEOMETRY_IMAGE_UNIFORMS_EXT	back to summary
public static final int GL_MAX_GEOMETRY_IMAGE_UNIFORMS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

GL_MAX_GEOMETRY_INPUT_COMPONENTS_EXT	back to summary
public static final int GL_MAX_GEOMETRY_INPUT_COMPONENTS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

GL_MAX_GEOMETRY_OUTPUT_COMPONENTS_EXT	back to summary
public static final int GL_MAX_GEOMETRY_OUTPUT_COMPONENTS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

GL_MAX_GEOMETRY_OUTPUT_VERTICES_EXT	back to summary
public static final int GL_MAX_GEOMETRY_OUTPUT_VERTICES_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

GL_MAX_GEOMETRY_SHADER_INVOCATIONS_EXT	back to summary
public static final int GL_MAX_GEOMETRY_SHADER_INVOCATIONS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

GL_MAX_GEOMETRY_SHADER_STORAGE_BLOCKS_EXT	back to summary
public static final int GL_MAX_GEOMETRY_SHADER_STORAGE_BLOCKS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_EXT	back to summary
public static final int GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_EXT	back to summary
public static final int GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

GL_MAX_GEOMETRY_UNIFORM_BLOCKS_EXT	back to summary
public static final int GL_MAX_GEOMETRY_UNIFORM_BLOCKS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

GL_MAX_GEOMETRY_UNIFORM_COMPONENTS_EXT	back to summary
public static final int GL_MAX_GEOMETRY_UNIFORM_COMPONENTS_EXT Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v.

GL_PRIMITIVES_GENERATED_EXT	back to summary
public static final int GL_PRIMITIVES_GENERATED_EXT Accepted by the `target` parameter of BeginQuery, EndQuery, GetQueryiv, and GetQueryObjectuiv.

GL_REFERENCED_BY_GEOMETRY_SHADER_EXT	back to summary
public static final int GL_REFERENCED_BY_GEOMETRY_SHADER_EXT Accepted by the `props` parameter of GetProgramResourceiv.

GL_TRIANGLE_STRIP_ADJACENCY_EXT	back to summary
public static final int GL_TRIANGLE_STRIP_ADJACENCY_EXT Accepted by the `mode` parameter of DrawArrays, DrawElements, and other commands which draw primitives.

GL_TRIANGLES_ADJACENCY_EXT	back to summary
public static final int GL_TRIANGLES_ADJACENCY_EXT Accepted by the `mode` parameter of DrawArrays, DrawElements, and other commands which draw primitives.

GL_UNDEFINED_VERTEX_EXT	back to summary
public static final int GL_UNDEFINED_VERTEX_EXT Returned in the `data` parameter from a Get query with a `pname` of LAYER_PROVOKING_VERTEX_EXT.

public Class EXTGeometryShader

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