Package org.lwjgl.vulkan

Class AMDShaderExplicitVertexParameter

java.lang.Object

org.lwjgl.vulkan.AMDShaderExplicitVertexParameter

public final class AMDShaderExplicitVertexParameter
extends java.lang.Object

When the VK_AMD_shader_explicit_vertex_parameter device extension is enabled the application can pass a SPIR-V module to CreateShaderModule that uses the SPV_AMD_shader_explicit_vertex_parameter SPIR-V extension.

When the VK_AMD_shader_explicit_vertex_parameter device extension is enabled the CustomInterpAMD interpolation decoration can also be used with fragment shader inputs which indicate that the decorated inputs can only be accessed by the extended instruction InterpolateAtVertexAMD and allows accessing the value of the inputs for individual vertices of the primitive.

When the VK_AMD_shader_explicit_vertex_parameter device extension is enabled inputs can be also decorated with the CustomInterpAMD interpolation decoration, including fragment shader inputs that are signed or unsigned integers, integer vectors, or any double-precision floating-point type. Inputs decorated with CustomInterpAMD can only be accessed by the extended instruction InterpolateAtVertexAMD and allows accessing the value of the input for individual vertices of the primitive.

The BaryCoordNoPerspAMD decoration can be used to decorate a fragment shader input variable. This variable will contain the (I,J) pair of the barycentric coordinates corresponding to the fragment evaluated using linear interpolation at the pixel's center. The K coordinate of the barycentric coordinates can be derived given the identity I + J + K = 1.0.

The BaryCoordNoPerspCentroidAMD decoration can be used to decorate a fragment shader input variable. This variable will contain the (I,J) pair of the barycentric coordinates corresponding to the fragment evaluated using linear interpolation at the centroid. The K coordinate of the barycentric coordinates can be derived given the identity I + J + K = 1.0.

The BaryCoordNoPerspCentroidAMD decoration can be used to decorate a fragment shader input variable. This variable will contain the (I,J) pair of the barycentric coordinates corresponding to the fragment evaluated using linear interpolation at each covered sample. The K coordinate of the barycentric coordinates can be derived given the identity I + J + K = 1.0.

The BaryCoordPullModelAMD decoration can be used to decorate a fragment shader input variable. This variable will contain (1/W, 1/I, 1/J) evaluated at the pixel center and can be used to calculate gradients and then interpolate I, J, and W at any desired sample location.

The BaryCoordSmoothAMD decoration can be used to decorate a fragment shader input variable. This variable will contain the (I,J) pair of the barycentric coordinates corresponding to the fragment evaluated using perspective interpolation at the pixel's center. The K coordinate of the barycentric coordinates can be derived given the identity I + J + K = 1.0.

The BaryCoordSmoothCentroidAMD decoration can be used to decorate a fragment shader input variable. This variable will contain the (I,J) pair of the barycentric coordinates corresponding to the fragment evaluated using perspective interpolation at the centroid. The K coordinate of the barycentric coordinates can: be derived given the identity I + J + K = 1.0.

The BaryCoordSmoothCentroidAMD decoration can be used to decorate a fragment shader input variable. This variable will contain the (I,J) pair of the barycentric coordinates corresponding to the fragment evaluated using perspective interpolation at each covered sample. The K coordinate of the barycentric coordinates can: be derived given the identity I + J + K = 1.0.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	VK_AMD_SHADER_EXPLICIT_VERTEX_PARAMETER_EXTENSION_NAME The extension name.
static int	VK_AMD_SHADER_EXPLICIT_VERTEX_PARAMETER_SPEC_VERSION The extension specification version.

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

VK_AMD_SHADER_EXPLICIT_VERTEX_PARAMETER_SPEC_VERSION

public static final int VK_AMD_SHADER_EXPLICIT_VERTEX_PARAMETER_SPEC_VERSION

The extension specification version.

See Also:

Constant Field Values

VK_AMD_SHADER_EXPLICIT_VERTEX_PARAMETER_EXTENSION_NAME

public static final java.lang.String VK_AMD_SHADER_EXPLICIT_VERTEX_PARAMETER_EXTENSION_NAME

The extension name.

See Also:

Constant Field Values