rayshader - Create Maps and Visualize Data in 2D and 3D

Uses a combination of raytracing and multiple hill shading methods to produce 2D and 3D data visualizations and maps. Includes water detection and layering functions, programmable color palette generation, several built-in textures for hill shading, 2D and 3D plotting options, a built-in path tracer, 'Wavefront' OBJ file export, and the ability to save 3D visualizations to a 3D printable format.

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cpp

11.53 score 2.2k stars 3 dependents 2.1k scripts 2.0k downloads

rayrender - Build and Raytrace 3D Scenes

Render scenes using pathtracing. Build 3D scenes out of spheres, cubes, planes, disks, triangles, cones, curves, line segments, cylinders, ellipsoids, and 3D models in the 'Wavefront' OBJ file format or the PLY Polygon File Format. Supports several material types, textures, multicore rendering, and tone-mapping. Based on the "Ray Tracing in One Weekend" book series. Peter Shirley (2018) <https://raytracing.github.io>.

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libx11cpp

10.19 score 642 stars 6 dependents 222 scripts 2.0k downloads

rayimage - Image Processing for Simulated Cameras

Uses convolution-based techniques to generate simulated camera bokeh, depth of field, and other camera effects, using an image and an optional depth map. Accepts both filename inputs and in-memory array representations of images and matrices, including common raster formats such as 'JPEG', 'PNG', 'TIFF', 'TGA', 'BMP', 'PSD', 'GIF', 'HDR', 'PIC', 'PNM', 'DNG', and 'EXR'. Includes functions to perform 2D convolutions, color correction, colorspace conversion, image/matrix reorientation and resizing, image and text overlays, exposure adjustment, camera vignette effects, and image titles.

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cpp

7.94 score 63 stars 9 dependents 27 scripts 1.9k downloads

rayvertex - 3D Software Rasterizer

Rasterize images using a 3D software renderer. 3D scenes are created either by importing external files, building scenes out of the included objects, or by constructing meshes manually. Supports point and directional lights, anti-aliased lines, shadow mapping, transparent objects, translucent objects, multiple materials types, reflection, refraction, environment maps, multicore rendering, bloom, tone-mapping, and screen-space ambient occlusion.

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cpp

7.74 score 69 stars 8 dependents 26 scripts 1.8k downloads

skpr - Design of Experiments Suite: Generate and Evaluate Optimal Designs

Generates and evaluates D, I, A, Alias, E, T, and G optimal designs. Supports generation and evaluation of blocked and split/split-split/.../N-split plot designs. Includes parametric and Monte Carlo power evaluation functions, and supports calculating power for censored responses. Provides a framework to evaluate power using functions provided in other packages or written by the user. Includes a Shiny graphical user interface that displays the underlying code used to create and evaluate the design to improve ease-of-use and make analyses more reproducible. For details, see Morgan-Wall et al. (2021) <doi:10.18637/jss.v099.i01>.

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design-of-experimentslinear-modelslinear-regressionmonte-carlooptimal-designspowersplit-plot-designssurvival-analysiscpp

7.37 score 120 stars 39 scripts 4.1k downloads

spacefillr - Space-Filling Random and Quasi-Random Sequences

Generates random and quasi-random space-filling sequences. Supports the following sequences: 'Halton', 'Sobol', 'Owen'-scrambled 'Sobol', 'Owen'-scrambled 'Sobol' with errors distributed as blue noise, progressive jittered, progressive multi-jittered ('PMJ'), 'PMJ' with blue noise, 'PMJ02', and 'PMJ02' with blue noise. Includes a 'C++' 'API'. Methods derived from "Constructing Sobol sequences with better two-dimensional projections" (2012) <doi:10.1137/070709359> S. Joe and F. Y. Kuo, "Progressive Multi-Jittered Sample Sequences" (2018) <https://graphics.pixar.com/library/ProgressiveMultiJitteredSampling/paper.pdf> Christensen, P., Kensler, A. and Kilpatrick, C., and "A Low-Discrepancy Sampler that Distributes Monte Carlo Errors as a Blue Noise in Screen Space" (2019) E. Heitz, B. Laurent, O. Victor, C. David and I. Jean-Claude, <doi:10.1145/3306307.3328191>.

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halton-sequencequasi-random-generatorsobol-sequencecpp

7.00 score 8 stars 54 dependents 8 scripts 16k downloads

terrainmeshr - Triangulate and Simplify 3D Terrain Meshes

Provides triangulations of regular height fields, based on the methods described in "Fast Polygonal Approximation of Terrains and Height Fields" Michael Garland and Paul S. Heckbert (1995) <https://www.mgarland.org/files/papers/scape.pdf> using code from the 'hmm' library written by Michael Fogleman <https://github.com/fogleman/hmm>.

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cpp

5.77 score 37 stars 5 dependents 5 scripts 2.1k downloads

libopenexr - Static Library and Headers for 'OpenEXR' Image I/O

Provides the 'OpenEXR' static library and 'C++' headers for high-dynamic-range image I/O (see <https://openexr.com/>) needed to link R packages against the 'OpenEXR' library, along with a basic R interface to load 'EXR' images.

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cpp

4.86 score 4 dependents 557 downloads

libimath - 'Imath' Computer Graphics Linear Algebra Static Library

Provides a static library for 'Imath' (see <https://github.com/AcademySoftwareFoundation/Imath>), a library for functions and data types common in computer graphics applications, including a 16-bit floating-point type.

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cpp

4.65 score 5 dependents 191 downloads

raymolecule - Parse and Render Molecular Structures in 3D

Downloads and parses 'SDF' (Structural Description Format) and 'PDB' (Protein Database) files for 3D rendering.

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4.60 score 40 stars 7 scripts 209 downloads

adjustedcranlogs - Remove Automated and Repeated Downloads from 'RStudio' 'CRAN' Download Logs

Adjusts output of 'cranlogs' package to account for 'CRAN'-wide daily automated downloads and re-downloads caused by package updates.

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4.59 score 26 stars 1 dependents 8 scripts 304 downloads

raybevel - Generates Polygon Straight Skeletons and 3D Bevels

Generates polygon straight skeletons and 3D models. Provides functions to create and visualize interior polygon offsets, 3D beveled polygons, and 3D roof models.

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cpp

4.15 score 28 stars 4 scripts 323 downloads

libdeflate - DEFLATE Compression and Static Library

Whole-buffer DEFLATE-based compression and decompression of raw vectors using the 'libdeflate' library (see <https://github.com/ebiggers/libdeflate>). Provides the user with additional control over the speed and the quality of DEFLATE compression compared to the fixed level of compression offered in R's 'memCompress()' function. Also provides the 'libdeflate' static library and 'C' headers along with a 'CMake' target and 'package‑config' file that ease linking of 'libdeflate' in packages that compile and statically link bundled libraries using 'CMake'.

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3.48 score 1 stars 4 scripts 248 downloads

raybonsai - Procedurally Generate and Render 3D Trees

Generate procedural 3D trees and render them in 3D. Based on the `flametree` package by Danielle Navarro.

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2.95 score 18 stars 3 scripts