![]() So you have full control over the mathematical properties of the downsamplingįunction. Need a well defined filter function, use a custom written GLSL shader instead, However, the filter function for downsampling is system dependent and may varyĪcross graphics cards, although a box-filter is the most common type. Of blurred or low-pass filtered images, e.g., for gaze-contingent displays. Half the resolution of the preceeding layer. Layer, a value of -3 draws a quarter resolution layer and so on. Of -1 draws the highest resolution layer, a value of -2 draws a half-resolution Pyramids, the filterMode value selects a specific layer in that pyramid. GL_TEXTURE_2D format is used: Mip-maps are essentially image resolution Value will also use mip-mapping for fast drawing of blurred textures if the Textures (see description of ‘specialFlags’ flag 1 below). Mipmap filtering is only supported for GL_TEXTURE_2D ![]() Nearest mipmap level, 5 = nearest neighbour filtering with linear interpolationīetween mipmap levels. Trilinear filtering across mipmap levels, 4 = Nearest neighbour filtering for Values 2 or 3 select use of OpenGL mip-mappingįor improved quality: 2 = Bilinear filtering for nearest mipmap level, 3 = 0 = Nearest neighbour filtering, 1 = Bilinearįiltering - this is the default. SourceRect and destinationRect do not have the same size or if sourceRect Values when the texture is drawn magnified, minified or drawn shifted, e.g., if ‘filterMode’ How to compute the pixel color Specifies a rotation angle in degree for rotated drawing of the texture ‘destinationRect’ defines the rectangular subpart of the window where the Rectangular subpart of the texture to be drawn (Defaults to full texture). Windows for fast drawing of images during animation.’sourceRect’ specifies a In the the OS X Psychtoolbox textures replace offscreen ![]() Screen(‘DrawTexture’, windowPointer, texturePointer ) ĭraw the texture specified via ‘texturePointer’ into the target window specified Screen(‘DrawTexture’) Psychtoolbox> Screen. Contribute work or money to the project.Some of its functionality is availableĪs part of Python toolkits like PsychoPy.įor commercial support and services visit Follow us on Twitter Getting started It makes it easy to synthesizeĪnd show accurately controlled visual and auditory stimuli and interact with the observer. GNU Octave functions for vision and neuroscience research. Psychophysics Toolbox Version 3 (PTB-3) is a free set of Matlab and
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |