Results 1 to 4 of 4

Thread: Cross Dissolves Between Streaming Textures

  1. #1
    Member Contributor
    Join Date
    Sep 2007
    Location
    Southern California
    Posts
    60

    Cross Dissolves Between Streaming Textures

    What is the most time-efficient method of dissolving between two video texture streams? I will be using 2048x1536 images, displaying in two different windows, each window with a different texture lookup of the same program. Window sizes will be different. OpenGL has so many features that support Alpha Transparency, I can think of a few different techniques. I could use:

    -Multitexturing w/Texture Combiner Function
    -Fragment Shader with 2 Texture Samplers
    -Accumulation Buffer Operation

    I appreciate your thoughts.

  2. #2
    Super Moderator OpenGL Lord
    Join Date
    Dec 2003
    Location
    Grenoble - France
    Posts
    5,574

    Re: Cross Dissolves Between Streaming Textures

    Forget completely accum buffer (rarely hardware accelerated, being abandonned).

    Then if you have recent enough hardware (needed for speedy dissolve anyway), go straight for the modern thing : GLSL Fragment Shader with 2 Texture Samplers.
    It will give you much more power to do exactly the dissolve you want.

  3. #3
    Member Contributor
    Join Date
    Sep 2007
    Location
    Southern California
    Posts
    60

    Re: Cross Dissolves Between Streaming Textures

    Thanks for the tip, ZbuffeR!

  4. #4
    Junior Member Newbie
    Join Date
    Sep 2007
    Location
    malaysia
    Posts
    3

    Re: Cross Dissolves Between Streaming Textures

    Hey guys, am just begining to learn opengl.
    I need to display diffrent images randomly (one after another without any key press) what can i do?

Similar Threads

  1. TBO streaming
    By Axelander in forum OpenGL: Basic Coding
    Replies: 1
    Last Post: 01-23-2015, 11:54 AM
  2. "gl-streaming" - Lightweight OpenGL ES command streaming framework
    By shodruk in forum OpenGL: Advanced Coding
    Replies: 22
    Last Post: 04-24-2014, 05:48 AM
  3. Streaming bitmap data for textures via Socket
    By sasmaster in forum OpenGL: Basic Coding
    Replies: 2
    Last Post: 05-04-2011, 08:08 AM
  4. PBO for streaming textures
    By Mars_999 in forum OpenGL: Advanced Coding
    Replies: 8
    Last Post: 08-25-2008, 04:01 PM
  5. Cross section textures
    By TriangleMan in forum OpenGL: Advanced Coding
    Replies: 1
    Last Post: 06-12-2004, 02:37 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Proudly hosted by Digital Ocean