220 lines
7.5 KiB
C++
220 lines
7.5 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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/// OpenGL Mathematics (glm.g-truc.net)
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///
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/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net)
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/// Permission is hereby granted, free of charge, to any person obtaining a copy
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/// of this software and associated documentation files (the "Software"), to deal
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/// in the Software without restriction, including without limitation the rights
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/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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/// copies of the Software, and to permit persons to whom the Software is
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/// furnished to do so, subject to the following conditions:
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///
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/// The above copyright notice and this permission notice shall be included in
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/// all copies or substantial portions of the Software.
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///
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/// Restrictions:
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/// By making use of the Software for military purposes, you choose to make
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/// a Bunny unhappy.
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///
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/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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/// THE SOFTWARE.
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///
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/// @file test/gtc/gtc_noise.cpp
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/// @date 2011-04-21 / 2014-11-25
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/// @author Christophe Riccio
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///////////////////////////////////////////////////////////////////////////////////
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#include <glm/gtc/noise.hpp>
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#include <gli/gli.hpp>
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#include <gli/gtx/loader.hpp>
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int test_simplex()
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{
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std::size_t const Size = 256;
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{
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std::vector<glm::byte> ImageData(Size * Size * 3);
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for(std::size_t y = 0; y < Size; ++y)
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for(std::size_t x = 0; x < Size; ++x)
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{
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ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::simplex(glm::vec2(x / 64.f, y / 64.f)) * 128.f + 127.f);
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ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
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ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
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}
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gli::texture2D Texture(1);
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Texture[0] = gli::image2D(glm::uvec2(Size), gli::RGB8U);
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memcpy(Texture[0].data(), &ImageData[0], ImageData.size());
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gli::saveDDS9(Texture, "texture_simplex2d_256.dds");
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}
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{
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std::vector<glm::byte> ImageData(Size * Size * 3);
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for(std::size_t y = 0; y < Size; ++y)
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for(std::size_t x = 0; x < Size; ++x)
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{
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ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::simplex(glm::vec3(x / 64.f, y / 64.f, 0.5f)) * 128.f + 127.f);
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ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
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ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
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}
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gli::texture2D Texture(1);
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Texture[0] = gli::image2D(glm::uvec2(Size), gli::RGB8U);
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memcpy(Texture[0].data(), &ImageData[0], ImageData.size());
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gli::saveDDS9(Texture, "texture_simplex3d_256.dds");
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}
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{
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std::vector<glm::byte> ImageData(Size * Size * 3);
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for(std::size_t y = 0; y < Size; ++y)
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for(std::size_t x = 0; x < Size; ++x)
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{
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ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::simplex(glm::vec4(x / 64.f, y / 64.f, 0.5f, 0.5f)) * 128.f + 127.f);
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ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
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ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
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}
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gli::texture2D Texture(1);
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Texture[0] = gli::image2D(glm::uvec2(Size), gli::RGB8U);
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memcpy(Texture[0].data(), &ImageData[0], ImageData.size());
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gli::saveDDS9(Texture, "texture_simplex4d_256.dds");
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}
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return 0;
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}
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int test_perlin()
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{
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std::size_t const Size = 256;
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{
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std::vector<glm::byte> ImageData(Size * Size * 3);
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for(std::size_t y = 0; y < Size; ++y)
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for(std::size_t x = 0; x < Size; ++x)
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{
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ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::perlin(glm::vec2(x / 64.f, y / 64.f)) * 128.f + 127.f);
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ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
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ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
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}
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gli::texture2D Texture(1);
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Texture[0] = gli::image2D(glm::uvec2(Size), gli::RGB8U);
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memcpy(Texture[0].data(), &ImageData[0], ImageData.size());
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gli::saveDDS9(Texture, "texture_perlin2d_256.dds");
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}
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{
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std::vector<glm::byte> ImageData(Size * Size * 3);
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for(std::size_t y = 0; y < Size; ++y)
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for(std::size_t x = 0; x < Size; ++x)
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{
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ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::perlin(glm::vec3(x / 64.f, y / 64.f, 0.5f)) * 128.f + 127.f);
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ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
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ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
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}
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gli::texture2D Texture(1);
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Texture[0] = gli::image2D(glm::uvec2(Size), gli::RGB8U);
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memcpy(Texture[0].data(), &ImageData[0], ImageData.size());
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gli::saveDDS9(Texture, "texture_perlin3d_256.dds");
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}
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{
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std::vector<glm::byte> ImageData(Size * Size * 3);
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for(std::size_t y = 0; y < Size; ++y)
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for(std::size_t x = 0; x < Size; ++x)
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{
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ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::perlin(glm::vec4(x / 64.f, y / 64.f, 0.5f, 0.5f)) * 128.f + 127.f);
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ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
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ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
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}
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gli::texture2D Texture(1);
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Texture[0] = gli::image2D(glm::uvec2(Size), gli::RGB8U);
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memcpy(Texture[0].data(), &ImageData[0], ImageData.size());
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gli::saveDDS9(Texture, "texture_perlin4d_256.dds");
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}
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return 0;
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}
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int test_perlin_pedioric()
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{
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std::size_t const Size = 256;
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{
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std::vector<glm::byte> ImageData(Size * Size * 3);
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for(std::size_t y = 0; y < Size; ++y)
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for(std::size_t x = 0; x < Size; ++x)
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{
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ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::perlin(glm::vec2(x / 64.f, y / 64.f), glm::vec2(2.0f)) * 128.f + 127.f);
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ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
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ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
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}
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gli::texture2D Texture(1);
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Texture[0] = gli::image2D(glm::uvec2(Size), gli::RGB8U);
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memcpy(Texture[0].data(), &ImageData[0], ImageData.size());
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gli::saveDDS9(Texture, "texture_perlin_pedioric_2d_256.dds");
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}
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{
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std::vector<glm::byte> ImageData(Size * Size * 3);
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for(std::size_t y = 0; y < Size; ++y)
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for(std::size_t x = 0; x < Size; ++x)
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{
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ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::perlin(glm::vec3(x / 64.f, y / 64.f, 0.5f), glm::vec3(2.0f)) * 128.f + 127.f);
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ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
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ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
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}
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gli::texture2D Texture(1);
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Texture[0] = gli::image2D(glm::uvec2(Size), gli::RGB8U);
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memcpy(Texture[0].data(), &ImageData[0], ImageData.size());
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gli::saveDDS9(Texture, "texture_perlin_pedioric_3d_256.dds");
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}
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{
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std::vector<glm::byte> ImageData(Size * Size * 3);
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for(std::size_t y = 0; y < Size; ++y)
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for(std::size_t x = 0; x < Size; ++x)
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{
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ImageData[(x + y * Size) * 3 + 0] = glm::byte(glm::perlin(glm::vec4(x / 64.f, y / 64.f, 0.5f, 0.5f), glm::vec4(2.0f)) * 128.f + 127.f);
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ImageData[(x + y * Size) * 3 + 1] = ImageData[(x + y * Size) * 3 + 0];
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ImageData[(x + y * Size) * 3 + 2] = ImageData[(x + y * Size) * 3 + 0];
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}
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gli::texture2D Texture(1);
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Texture[0] = gli::image2D(glm::uvec2(Size), gli::RGB8U);
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memcpy(Texture[0].data(), &ImageData[0], ImageData.size());
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gli::saveDDS9(Texture, "texture_perlin_pedioric_4d_256.dds");
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}
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return 0;
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}
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int main()
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{
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int Error = 0;
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Error += test_simplex();
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Error += test_perlin();
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Error += test_perlin_pedioric();
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return Error;
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}
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