Method testGeometryShader

test/IECoreGL/Shader.py:283–309

( self )

			self.assertEqual( s.vertexAttribute( n ).size, 1 )

	def testGeometryShader( self ) :

		if IECoreGL.glslVersion() < 150 :
			# can't test geometry shaders if they don't exist
			return

		geometrySource = """
		#version 150

		layout( triangles ) in;
		layout( triangle_strip, max_vertices=3 ) out;

		uniform float geometryShaderParameter = 0;

		void main()
		{
			for( int i = 0; i < gl_in.length(); i++)
			{
				gl_Position = gl_in[i].gl_Position + vec4( geometryShaderParameter, 0, 0, 1 );
				EmitVertex();
			}
		}
		"""

		s = IECoreGL.Shader( IECoreGL.Shader.defaultVertexSource(), geometrySource, IECoreGL.Shader.defaultFragmentSource() )

		self.assertTrue( "geometryShaderParameter" in s.uniformParameterNames() )

	def testEmptyGeometryShader( self ) :