colorize.hpp File Reference

Header file for functions related to applying colorization and hillshading. More...

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Classes
struct	hmap::ColorAdjust

Namespaces
namespace	hmap

Enumerations
enum	hmap::NormalMapBlendingMethod : int {   hmap::NMAP_LINEAR , hmap::NMAP_DERIVATIVE , hmap::NMAP_UDN , hmap::NMAP_UNITY ,   hmap::NMAP_WHITEOUT }

Functions
void	hmap::apply_hillshade (Tensor &img, const Array &array, float vmin=0.f, float vmax=1.f, float exponent=1.f)
	Apply hillshading to a Tensor image.
void	hmap::apply_hillshade (std::vector< uint8_t > &img, const Array &array, float vmin=0.f, float vmax=1.f, float exponent=1.f, bool is_img_rgba=false)
	Apply hillshading to an 8-bit image.
void	hmap::color_adjust (VirtualTexture &tex, ColorAdjust param, const ComputeMode &cm)
Tensor	hmap::colorize (const Array &array, float vmin, float vmax, int cmap, bool hillshading, bool reverse=false, const Array *p_noise=nullptr)
	Apply colorization to an array.
void	hmap::colorize (VirtualTexture &out, VirtualArray &level, const ComputeMode &cm, float vmin, float vmax, int cmap, VirtualArray *p_alpha=nullptr, bool reverse=false, VirtualArray *p_noise=nullptr)
	Colorize a scalar field into a texture using a predefined colormap.
void	hmap::colorize (VirtualTexture &out, VirtualArray &level, const ComputeMode &cm, float vmin, float vmax, const std::vector< float > &positions, const std::vector< glm::vec3 > &colormap_colors, VirtualArray *p_alpha=nullptr, bool reverse=false, VirtualArray *p_noise=nullptr)
	Colorize a scalar field into a texture using a custom colormap.
Tensor	hmap::colorize_grayscale (const Array &array)
	Convert an array to a grayscale image.
Tensor	hmap::colorize_histogram (const Array &array)
	Convert an array to a histogram-based grayscale image.
Tensor	hmap::colorize_slope_height_heatmap (const Array &array, int cmap)
	Colorizes a slope height heatmap based on the gradient norms of a given array.
Tensor	hmap::colorize_vec2 (const Array &array1, const Array &array2)
	Combine two arrays into a colored image.
void	hmap::luminance (VirtualArray &out, VirtualTexture &tex, const ComputeMode &cm)
	Compute luminance from a texture.
void	hmap::mix (VirtualTexture &out, VirtualTexture &tex1, VirtualTexture &tex2, const ComputeMode &cm, bool use_sqrt_avg=true)
	Mix two textures into an output texture.
void	hmap::mix (VirtualTexture &out, std::vector< VirtualTexture * > &texs, const ComputeMode &cm, bool use_sqrt_avg=true)
void	hmap::mix_normal_map (VirtualTexture &out, VirtualTexture &nmap_base, VirtualTexture &nmap_detail, const ComputeMode &cm, float detail_scaling, NormalMapBlendingMethod blending_method)
	Blend two normal maps into a single output normal map.

Detailed Description

Header file for functions related to applying colorization and hillshading.

Author

Otto Link (otto..nosp@m.link.nosp@m..bv@g.nosp@m.mail.nosp@m..com)

This file contains the declarations of functions that are used to apply colorization and hillshading effects to images and arrays. The functions allow for creating grayscale, histogram-based, and colored images from elevation data and other input arrays.

Copyright

Copyright (c) 2023 Otto Link