class CoreTriangle( object ):
vertex_shader = textwrap.dedent( """
#version 150
// input
in vec3 in_position;
in vec3 in_colour;
uniform mat4 model_view;
uniform mat4 projection;
// shared
out vec3 ex_colour;
void main(void)
{
// apply projection and model view matrix to vertex
gl_Position = projection * model_view * vec4( in_position, 1.0 );
ex_colour = in_colour;
}
""" )
fragment_shader = textwrap.dedent( """
#version 150
// shared
in vec3 ex_colour;
// output
out vec4 fragColor;
void main(void)
{
// set colour of each fragment
fragColor = vec4( ex_colour, 1.0 );
}
""" )
def __init__( self ):
super( CoreTriangle, self ).__init__()
global vertices
# create our shader
self.shader = ShaderProgram(
VertexShader( self.vertex_shader ),
FragmentShader( self.fragment_shader ),
)
# create a vertex buffer
# we pass in a list of regions we want to define
# we only have 1 region here
# for each region, we pass in how many rows, and the dtype
self.buffer = VertexBuffer(
GL.GL_ARRAY_BUFFER,
GL.GL_STATIC_DRAW,
data = vertices,
)
# pass the shader and region to our VAO
# and bind each of the attributes to a VAO index
# the shader name is the variable name used in the shader
# the buffer name is the name of the property in our vertex dtype
self.buffer_attributes = BufferAttributes()
self.buffer_attributes[ 'position' ] = GenericAttribute.from_dtype(
self.buffer,
vertices.dtype,
'position',
location = self.shader.attributes[ 'in_position' ]
)
self.buffer_attributes[ 'colour' ] = GenericAttribute.from_dtype(
self.buffer,
vertices.dtype,
'colour',
location = self.shader.attributes[ 'in_colour' ]
)
# create our vertex array
self.vao = VertexArray()
self.vao.bind()
self.buffer.bind()
self.buffer_attributes.set()
self.buffer.unbind()
self.vao.unbind()
def draw( self, projection, model_view ):
global vertices
self.shader.bind()
self.shader.uniforms[ 'projection' ].value = projection
self.shader.uniforms[ 'model_view' ].value = model_view
self.vao.bind()
GL.glDrawArrays( GL.GL_TRIANGLES, 0, len( vertices ) )
self.vao.unbind()
self.shader.unbind()
class LegacyTriangle( object ):
vertex_shader = textwrap.dedent( """
#version 120
void main(void)
{
// apply projection and model view matrix to vertex
gl_Position = gl_ProjectionMatrix * gl_ModelViewMatrix * gl_Vertex;
gl_FrontColor = gl_Color;
}
""" )
fragment_shader = textwrap.dedent( """
#version 120
void main(void)
{
// set colour of each fragment
gl_FragColor = gl_Color;
}
""" )
def __init__( self ):
super( LegacyTriangle, self ).__init__()
global vertices
self.use_shaders = True
# create our shader
self.shader = ShaderProgram(
VertexShader( self.vertex_shader ),
FragmentShader( self.fragment_shader )
)
# create our vertex buffer
self.buffer = VertexBuffer(
GL.GL_ARRAY_BUFFER,
GL.GL_STATIC_DRAW,
data = vertices,
)
self.buffer_attributes = BufferAttributes()
self.buffer_attributes[ 'position' ] = VertexAttribute.from_dtype(
self.buffer,
vertices.dtype,
'position'
)
self.buffer_attributes[ 'colour' ] = ColourAttribute.from_dtype(
self.buffer,
vertices.dtype,
'colour'
)
def draw( self ):
global vertices
if self.use_shaders:
self.shader.bind()
self.buffer_attributes.push_attributes()
# set the vertex pointer to the position data
self.buffer.bind()
self.buffer_attributes.set()
self.buffer.unbind()
GL.glDrawArrays( GL.GL_TRIANGLES, 0, len( vertices ) )
self.buffer_attributes.pop_attributes()
if self.use_shaders:
self.shader.unbind()
class LegacyCube(object):
vertex_shader = textwrap.dedent("""
#version 120
void main(void)
{
// apply projection and model view matrix to vertex
gl_Position = gl_ProjectionMatrix * gl_ModelViewMatrix * gl_Vertex;
gl_FrontColor = gl_Color;
}
""")
fragment_shader = textwrap.dedent("""
#version 120
void main(void)
{
// set colour of each fragment
gl_FragColor = gl_Color;
}
""")
def __init__(self):
super(LegacyCube, self).__init__()
global vertices
self.use_shaders = True
# create our shader
self.shader = ShaderProgram(VertexShader(self.vertex_shader),
FragmentShader(self.fragment_shader))
# create our vertex buffer
self.buffer = VertexBuffer(
GL.GL_ARRAY_BUFFER,
GL.GL_STATIC_DRAW,
data=vertices,
)
self.buffer_attributes = BufferAttributes()
self.buffer_attributes['position'] = VertexAttribute.from_dtype(
self.buffer, vertices.dtype, 'position')
self.buffer_attributes['colour'] = ColourAttribute.from_dtype(
self.buffer, vertices.dtype, 'colour')
def draw(self):
global vertices
if self.use_shaders:
self.shader.bind()
self.buffer_attributes.push_attributes()
# set the vertex pointer to the position data
self.buffer.bind()
self.buffer_attributes.set()
self.buffer.unbind()
GL.glDrawArrays(GL.GL_TRIANGLES, 0, len(vertices))
self.buffer_attributes.pop_attributes()
if self.use_shaders:
self.shader.unbind()
class CoreCube(object):
vertex_shader = textwrap.dedent("""
#version 150
// input
in vec3 in_position;
in vec3 in_colour;
uniform mat4 model_view;
uniform mat4 projection;
// shared
out vec3 ex_colour;
void main(void)
{
// apply projection and model view matrix to vertex
gl_Position = projection * model_view * vec4( in_position, 1.0 );
ex_colour = in_colour;
}
""")
fragment_shader = textwrap.dedent("""
#version 150
// shared
in vec3 ex_colour;
// output
out vec4 fragColor;
void main(void)
{
// set colour of each fragment
fragColor = vec4( ex_colour, 1.0 );
}
""")
def __init__(self):
super(CoreCube, self).__init__()
global vertices
# create our shader
self.shader = ShaderProgram(VertexShader(self.vertex_shader),
FragmentShader(self.fragment_shader))
# create a vertex buffer
# we pass in a list of regions we want to define
# we only have 1 region here
# for each region, we pass in how many rows, and the dtype
self.buffer = VertexBuffer(
GL.GL_ARRAY_BUFFER,
GL.GL_STATIC_DRAW,
data=vertices,
)
# pass the shader and region to our VAO
# and bind each of the attributes to a VAO index
# the shader name is the variable name used in the shader
# the buffer name is the name of the property in our vertex dtype
self.buffer_attributes = BufferAttributes()
self.buffer_attributes['position'] = GenericAttribute.from_dtype(
self.buffer,
vertices.dtype,
'position',
location=self.shader.attributes['in_position'])
self.buffer_attributes['colour'] = GenericAttribute.from_dtype(
self.buffer,
vertices.dtype,
'colour',
location=self.shader.attributes['in_colour'])
# create our vertex array
self.vao = VertexArray()
self.vao.bind()
self.buffer.bind()
self.buffer_attributes.set()
self.buffer.unbind()
self.vao.unbind()
def draw(self, projection, model_view):
global vertices
self.shader.bind()
self.shader.uniforms['projection'].value = projection
self.shader.uniforms['model_view'].value = model_view
self.vao.bind()
GL.glDrawArrays(GL.GL_TRIANGLES, 0, len(vertices))
self.vao.unbind()
self.shader.unbind()
class LegacyQuad( object ):
vertex_shader = textwrap.dedent( """
#version 120
void main(void)
{
// apply projection and model view matrix to vertex
gl_Position = gl_ProjectionMatrix * gl_ModelViewMatrix * gl_Vertex;
// select the texture coordinate to use
gl_TexCoord[0] = gl_MultiTexCoord0;
}
""" )
fragment_shader = textwrap.dedent( """
#version 120
// input
uniform sampler2D in_diffuse_texture;
void main(void)
{
// set colour of each fragment
gl_FragColor = texture2D( in_diffuse_texture, gl_TexCoord[0].st );
}
""" )
def __init__( self ):
super( LegacyQuad, self ).__init__()
global vertices
self.use_shaders = True
GL.glEnable(GL.GL_TEXTURE_2D)
# create our shader
self.shader = ShaderProgram(
VertexShader( self.vertex_shader ),
FragmentShader( self.fragment_shader )
)
# create our vertex buffer
self.buffer = VertexBuffer(
GL.GL_ARRAY_BUFFER,
GL.GL_STATIC_DRAW,
data = vertices,
)
self.buffer_attributes = BufferAttributes()
self.buffer_attributes[ 'position' ] = VertexAttribute.from_dtype(
self.buffer,
vertices.dtype,
'position'
)
self.buffer_attributes[ 'uv' ] = TextureCoordAttribute.from_dtype(
self.buffer,
vertices.dtype,
'texture_coord'
)
def draw( self ):
global vertices
if self.use_shaders:
self.shader.bind()
self.shader.uniforms[ 'in_diffuse_texture' ].value = 0
self.buffer_attributes.push_attributes()
# set the vertex pointer to the position data
self.buffer.bind()
self.buffer_attributes.set()
self.buffer.unbind()
GL.glDrawArrays( GL.GL_TRIANGLES, 0, len( vertices ) )
self.buffer_attributes.pop_attributes()
if self.use_shaders:
self.shader.unbind()