Tag Archive - dragons

Ray Tracing Fun

Wednesday 14 April, 2010 · Computer Graphics · Projects

Finished writing my own acceleration structure for my Ray Tracer. Currently it’s something between a KD-Tree and an Octree. I expected performance to be slightly better than my original code, but to my suprise it’s already superfast (< 1 second for a Stanford Dragon) and I didn’t even optimize it yet.

Thesis Update

Friday 29 January, 2010 · Thesis

It’s been a while since I made a post about my thesis so time to give you guys an update. Since many people probably forgot what my thesis is about, here’s a quick recap: Last semester I’ve been working on a technique to render realistic looking shadows for non-deformable objects in 3D scenes and this [...]

Results

Tuesday 24 November, 2009 · Computer Graphics · Thesis

Shadow Bias

Monday 26 October, 2009 · Computer Graphics · Thesis

As Jurgen pointed out this afternoon, a bias of 0.25 (see post below) for my depth maps isn’t good since depth values are already clamped in the range of [0, 1]. Adding another quarter of that to my depth values is obviously no correct way of rendering shadows. The images below show the improved results [...]

Shadows and Dragons

Sunday 25 October, 2009 · Computer Graphics · Thesis

The last days I’ve been trying to get my shadows up and running, with succes. Using an exported version of one of the depth maps, I can render shadows in my scene. One thing that suprised me was the huge amount of aliasing shadow mapping creates: Despite it being a nice effect, there is just [...]

Eerste beelden van depth maps

Tuesday 20 October, 2009 · Computer Graphics · Thesis

Na de voorbije weken weinig vooruitgang geboekt te hebben, vliegen we er deze week terug in. Gisterenavond al enkele uren gewerkt aan een script om N depth maps rondom een object te genereren (zie verder). Deze ochtend ben ik eerst op zoek gegaan naar een manier om een OpenGL textuur om te zetten in een [...]

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