britanniavirtual

hlsl_line_shader

DirectX 11 shader to draw solid 3D line based on two 3D points as the vertex input. Line width and fill color specified with a cbuffer. Uses geometry shader to render the billboard line.

hlsl_screenspace_quad_shader

DirectX11 HLSL shader that draws a textured quad in screenspace using coordinates specified in a Geometry Shader.

hlsl_sky_shader

A DirectX 11 sky shader. Based on the Preetham Model for rendering an atmosphere. Only requires a basic cube for rendering a realistic sky.

jpeg_reader_writer

Extremely simple C++ program to read and write Jpeg image files. Library-free LibJpeg implementation.

line_segment_triangle_distance_3d

Distance between triangle and line segment. Intersection and nearest distance computed. Line segment consists of 2 3D points. All cases computed.

tga_reader_writer

Simplified read and write Targa format .tga image files in C++. Utility routines to rotate, flip horizontal and vertical, resample, draw rectangles on an image.

vector_3d_utilities

C++ 3D Vector class and utilities for common vector operations such as euclidean distance, multiplication of vectors, dot, cross, vector-plane intersect, triangle distance, to/from cartesan & spherical coordinates and more.