Ceng 795 / Raytacer Part 6

PART 6 Bump Mapping

Ceng 795 / Raytacer Part 6

PART 6 Directional lights, textures and sampling

I have completed the fifth part of the ray tracer project . Currently my ray tracer suppoprts directional lights, textures, spherical uv's , bilinear and nearest filtering and perlin noise.

Timings

ellipsoids_texture: 0.29 secs

killeroo_diffuse_specular_texture: 8.34  secs

perlin_types : 1.16 secs

simple_texture : 0.15 secs

skybox : 55 secs

sphere_texture_blend_bilinear: 0.19 secs

sphere_texture_replace_bilinear : 0.18 secs

sphere_texture_replace_nearest : 0.18 secs

Ceng 795 / Raytacer Part 5

PART 5 Multi Sampling , Area Lights & DOF

I have completed the fifth part of the ray tracer project . Currently my ray tracer suppoprts multi sampling and with the help of multi sampling, area lights and dof. Here are the results and their timings.

Timings

spheres_dof : 16.8 secs

metal_plates_area : 11  secs

glass_plates_point : 10 secs

glass_plates_area : 10 secs

dragon_spot_light_msaa : 21.26 secs

dragon_spot_light : 0.31 secs

Ceng 795 / Raytacer Part 4

Previous Work

At the free weekend(the onen without homework), I impelemented 4-wide packet tracing with SSE2 instructions. At the end, dragon scene was being rendered in 100 ms in my i5 2500k cpu. I wanted to implement refraction and reflection with SSE but before that I wanted to add another improvement which I will talk about in my next blog. So this weeks implementation is not vectorized.

PART 4 Reflections & Refractions

I have completed the fourth part of the ray tracer project . Currently my ray tracer shades with perfect mirror reflections and refractions. This part was moch more tricky than the previous ones, as the debugging is much more hard. Here are the renders for the test scenes.

Timings

CornellBox Glass : 0.21 secs

Glass Plates : 0.31 secs

Horse and Mug : 1.37 secs

Killeroo Glass : 1.35 secs

Killeroo Half Mirror : 1.68 secs

Killeroo Mirror : 1.79 secs