Gamedev forums topic reconstructing position from depth buffer

Depth buffer precision - Graphics and GPU Programming ... » Lately I've been doing some research into reducing amount of error when reconstructing position from depth for deferred rendering. My results indicate that ... Gamedev.net

john-chapman-graphics: SSAO Tutorial » Jan 15, 2013 ...project each sample point into screen space to get the coordinates into the depth buffer; sample the depth buffer; if the sample position is behind the sampled depth (i.e. inside geometry), it contributes to the ...See Matt Pettineo's blog for a discussion of other methods for reconstructing position from depth. John-chapman-graphics.blogspot.com

Advanced Virtual Texture Topics » texture memory. This functionality is already accessible with the efficient pixel shader capabilities available on the recent generations of commodity GPUs. In this chapter ...Chapter 2: Advanced Virtual Texture Topics. 24 | Page .....12 A swizzled memory layout is a cache friendly layout for position coherent texture lookups. Developer.amd.com

Scintillating Snippets: Reconstructing Position From Depth – The ... » Mar 10, 2009 ...In these cases, we can simply render out a depth buffer ourselves using the vertex and pixel shader bits I posted above. But is this really a good idea? z/w is ....@Orcun: checkout this thread, http://www.gamedev.net/community/forums/ topic.asp?topic_id=506573. The method from Shader x5 book uses a... Mynameismjp.wordpress.com

Pre-rendered backgrounds in Unity (2/2) – Rendering | Geometry ... » Sep 17, 2014 ...The z-Buffer in Blender is a floating point number that is linear between the camera position at z=0 and into the screen. ...I found the most useful information in these two forum posts on Elysiun and Unity3D.com. ....http://www.gamedev.net /topic/474166-reconstructing-pixel-3d-position-from-depth/. Mehm.net

Screen Space Glossy Reflections - Roar11 » Jul 10, 2015 ...In fact, the ray tracing shader used below is a translation of one written in GLSL, which would use OpenGL as its graphics API. ...The provided implementation assumes non-linear depth, and reconstructs linear Z values as they are sampled from the depth buffer using the methods described in [6]. Roar11.com

Reconstructing Position from Depth Data - Graphics and GPU ... » Hi, I am on my quest to figure out the fastest way to reconstruct a position value from depth data. Here is ...in this forum. So now the question: is there something faster to reconstruct world space position values from the depth buffer. .....http:// www.gamedev.net/community/forums/topic.asp?topic_id=482654 Gamedev.net

shader - DirectX + GLM Depth Reconstruction issues - Stack Overflow » I fixed my problem at gamedev.net. There was a matrix majorness issue as well as a depth handling issue. https://www.gamedev.net/forums/topic/692095-d3d- glm-depth-reconstruction-issues... Stackoverflow.com

Reconstructing pixel 3D position from depth - Graphics and GPU ... » Back to the topic...as for how the various coordinate spaces relate to traditional OpenGL matrix types, I had to go look it up myself since I'm not really .....i can reconstruct position from linear depth stored in a color texture, but not using a depth attachment. the code for this is from one of my profs, i don't really... Gamedev.net

Applying SSAO to scenes | Electronic Meteor » Dec 26, 2011 ...First, I don't have a render buffer that stores view-space position, so the getPosition function needed to be replaced. We can reconstruct world space position from depth using the inverse of the camera's view and projection matrix, and to get it into view space coordinates, multiply it with a view matrix:... Electronicmeteor.wordpress.com