Gl.CreateShader (gb.opengl.glsl)
Static Function CreateShader ( ShaderType As Integer ) As Integer
Creates a shader object.
Parameters
- shaderType
-
Specifies the type of shader to be created.
Must be one of Gl.VERTEX_SHADER,
Gl.GEOMETRY_SHADER
or Gl.FRAGMENT_SHADER.
Description
Gl.CreateShader creates an empty
shader object and returns a non-zero value by which it can be
referenced. A shader object is used to maintain the source code
strings that define a shader.
shaderType
indicates the type of shader to be created. Three types of shaders
are supported. A shader of type
Gl.VERTEX_SHADER is a shader that is
intended to run on the programmable vertex processor. A shader of type
Gl.GEOMETRY_SHADER is a shader that is intended to
run on the programmable geometry processor. A shader of
type Gl.FRAGMENT_SHADER is a shader that is
intended to run on the programmable fragment processor.
When created, a shader object's
Gl.SHADER_TYPE parameter is set to either
Gl.VERTEX_SHADER, Gl.GEOMETRY_SHADER
or Gl.FRAGMENT_SHADER, depending on the value
of
shaderType.
Notes
Like buffer and texture objects, the name space for
shader objects may be shared across a set of contexts, as long
as the server sides of the contexts share the same address
space. If the name space is shared across contexts, any attached
objects and the data associated with those attached objects are
shared as well.
Applications are responsible for providing the
synchronization across API calls when objects are accessed from
different execution threads.
Errors
This function returns 0 if an error occurs creating the
shader object.
Gl.INVALID_ENUM is generated if
shaderType is not an accepted value.
Associated Gets
Gl.GetShader
with a valid shader object and the parameter to be queried
Gl.GetShaderInfoLog
with a valid shader object
Gl.GetShaderSource
with a valid shader object
Gl.IsShader
See also
See original documentation on OpenGL website