This directory contains an Odin translation of ssloy's tinyrenderer (software rasterizer).

The goal of this port is to mirror the original C++ pipeline and keep output parity while using idiomatic Odin modules.

• main.odin - application entrypoint and Phong shader wiring
• math/ - vector/matrix math (geometry.h equivalent)
• image/ - TGA image loading/writing and pixel utilities (tgaimage.* equivalent)
• model/ - OBJ parsing + texture loading (model.* equivalent)
• rasterizer/ - camera transforms, z-buffer, triangle rasterization (our_gl.* equivalent)
• obj/ - assets used by the renderer

• OBJ mesh loading (v, vt, vn, triangulated f)
• TGA texture support (raw and RLE)
• Perspective projection + viewport transform
• Barycentric triangle rasterization with z-buffer
• Tangent-space normal mapped Phong shading
• CPU parallelization in rasterization (OpenMP-style split on x-range)

Render one:

odin run . -collection:tr=. -- ./obj/african_head/african_head.obj

Or render multiple models in one scene:

odin run . -collection:tr=. -- ./obj/diablo3_pose/diablo3_pose.obj ../tinyrenderer/obj/floor.obj

The renderer writes framebuffer.tga in the current directory.

This port has been validated against the C++ reference renderer with hash-equal framebuffer.tga output on representative scenes.