AMDVertexShaderTessellator (LWJGL 3.2.4 SNAPSHOT

java.lang.Object
- org.lwjgl.opengl.AMDVertexShaderTessellator

public class AMDVertexShaderTessellator
extends java.lang.Object

Native bindings to the AMD_vertex_shader_tessellator extension.

The vertex shader tessellator gives new flexibility to the shader author to shade at a tessellated vertex, rather than just at a provided vertex.

In unextended vertex shading, the built-in attributes such as gl_Vertex, gl_Normal, and gl_MultiTexcoord0, together with the user defined attributes, are system provided values which are initialized prior to vertex shader invocation.

With vertex shading tessellation, additional vertex shader special values are available:


         ivec3 gl_VertexTriangleIndex; // indices of the three control
                                       // points for the vertex
         vec3 gl_BarycentricCoord;     // barycentric coordinates
                                       // of the vertex
 
     i o
       |\
       | \
       *--*
       |\ |\
       | \| \
       *--*--*
       |\ |\ |\
       | \| \| \
     j o--*--*--o k
 
     Figure 1  A Tessellated Triangle
     o = control point (and tessellated vertex)
     * = tessellated vertex
 
         ivec4 gl_VertexQuadIndex;   // indices for the four control
                                     // points for the vertex
         vec2 gl_UVCoord;            // UV coordinates of the vertex
 
     i o--*--*--o k
       |\ |\ |\ |
       | \| \| \|
       *--*--*--*
       |\ |\ |\ |
       | \| \| \|
       *--*--*--*
       |\ |\ |\ |
       | \| \| \|
     j o--*--*--o l
 
     Figure 2  A Tessellated Quad
     o = control point (and tessellated vertex)
     * = tessellated vertex

When this extension is enabled, conventional built-in attributes and user defined attributes are uninitialized. The shader writer is responsible for explicitly fetching all other vertex data either from textures, uniform buffers, or vertex buffers.

The shader writer is further responsible for interpolating the vertex data at the given barycentric coordinates or uv coordinates of the vertex.

Requires OpenGL 2.0.

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`GL_CONTINUOUS_AMD` Accepted by TessellationModeAMD.
`static int`	`GL_DISCRETE_AMD` Accepted by TessellationModeAMD.
`static int`	`GL_INT_SAMPLER_BUFFER_AMD` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_SAMPLER_BUFFER_AMD` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_TESSELLATION_FACTOR_AMD` Accepted by GetFloatv.
`static int`	`GL_TESSELLATION_MODE_AMD` Accepted by GetIntegerv.
`static int`	`GL_UNSIGNED_INT_SAMPLER_BUFFER_AMD` Returned by the `type` parameter of GetActiveUniform.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type Method and Description

static void glTessellationFactorAMD(float factor)

static void glTessellationModeAMD(int mode)
- Methods inherited from class java.lang.Object
  equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static void`	`glTessellationFactorAMD(float factor)`
`static void`	`glTessellationModeAMD(int mode)`

- Field Detail
  - GL_SAMPLER_BUFFER_AMD
```
public static final int GL_SAMPLER_BUFFER_AMD
```
    Returned by the type parameter of GetActiveUniform.
    
    See Also:
    
    Constant Field Values
  - GL_INT_SAMPLER_BUFFER_AMD
```
public static final int GL_INT_SAMPLER_BUFFER_AMD
```
    Returned by the type parameter of GetActiveUniform.
    
    See Also:
    
    Constant Field Values
  - GL_UNSIGNED_INT_SAMPLER_BUFFER_AMD
```
public static final int GL_UNSIGNED_INT_SAMPLER_BUFFER_AMD
```
    Returned by the type parameter of GetActiveUniform.
    
    See Also:
    
    Constant Field Values
  - GL_DISCRETE_AMD
```
public static final int GL_DISCRETE_AMD
```
    Accepted by TessellationModeAMD.
    
    See Also:
    
    Constant Field Values
  - GL_CONTINUOUS_AMD
```
public static final int GL_CONTINUOUS_AMD
```
    Accepted by TessellationModeAMD.
    
    See Also:
    
    Constant Field Values
  - GL_TESSELLATION_MODE_AMD
```
public static final int GL_TESSELLATION_MODE_AMD
```
    Accepted by GetIntegerv.
    
    See Also:
    
    Constant Field Values
  - GL_TESSELLATION_FACTOR_AMD
```
public static final int GL_TESSELLATION_FACTOR_AMD
```
    Accepted by GetFloatv.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - glTessellationFactorAMD
```
public static void glTessellationFactorAMD(float factor)
```
  - glTessellationModeAMD
```
public static void glTessellationModeAMD(int mode)
```

Class AMDVertexShaderTessellator

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

GL_SAMPLER_BUFFER_AMD

GL_INT_SAMPLER_BUFFER_AMD

GL_UNSIGNED_INT_SAMPLER_BUFFER_AMD

GL_DISCRETE_AMD

GL_CONTINUOUS_AMD

GL_TESSELLATION_MODE_AMD

GL_TESSELLATION_FACTOR_AMD

Method Detail

glTessellationFactorAMD

glTessellationModeAMD