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Framebuffer Objects ⇨ Attach one or more renderable objects to it 1D, 2D, and 3D versions exist void glFramebufferTexture2DEXT (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level); void glFramebufferRenderbufferEXT( GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer); Selects how the buffer is used: Color buffer: GL_COLOR_ATTACHMENT0 Depth buffer: GL_DEPTH_ATTACHMENT 8-December-2010 Stencil buffer: GL_STENCIL_ATTACHMENT © Copyright Ian D. Romanick 2009, 2010
MRT – FBO Usage ⇨ Use additional color attachments e.g. GL_COLOR_ATTACHMENT1 Maximum number of attachments queryable with GL_MAX_COLOR_ATTACHMENTS EXT_fbo requires that all color attachments have the same internal format ARB_fbo / OpenGL 3.0 allow drivers to relax this restriction The driver can still reject a particular combination Most hardware can handle combinations with the same size internal formats e.g. GL_RGBA8 with GL_RGBA_10_10_10_2 8-December-2010 © Copyright Ian D. Romanick 2009, 2010
Page 1 and 2: VGP352 - Week 10 ⇨ Agenda: Mul
Page 3: MRT Uniforms Textures Varying 0 Var
Page 7 and 8: MRT - GLSL Usage ⇨ gl_FragColor i
Page 9 and 10: Deferred Shading ⇨ Scenes with hi
Page 11 and 12: Deferred Shading ⇨ General idea:
Page 13 and 14: Deferred Shading - G-Buffer ⇨ Exa
Page 15 and 16: Deferred Shading - G-Buffer ⇨ Cry
Page 17 and 18: Deferred Shading - Lighting ⇨ Opt
Page 19 and 20: Deferred Shading - Lighting Light v
Page 21 and 22: Deferred Shading - Drawbacks ⇨ Wh
Page 23 and 24: References Hargreaves, S., Harris,
Page 25 and 26: Virtual Point Lights ⇨ Generate V
Page 27 and 28: Next week... ⇨ The final 8-Decemb

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