79 lines
1.9 KiB
C++
79 lines
1.9 KiB
C++
#include <NBGraphics/GLLoad.hpp>
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#define STB_IMAGE_IMPLEMENTATION
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#include "stb_image.h"
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#include <NBCore/Errors.hpp>
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#include <NBGraphics/Image.hpp>
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#include <NBGraphics/ProgramPipeline.hpp>
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#include <NBGraphics/VertexArray.hpp>
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#include <NBGraphics/Window.hpp>
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#include <NBGraphics/Textures.hpp>
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int main() {
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LOG("Howdy!");
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nb::Window window(400, 400, "Hello!");
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window.setWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
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window.setWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
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window.init();
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auto vert = std::make_shared<nb::Shader>(
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GL_VERTEX_SHADER,
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"#version 330 core\n"
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"layout (location = 0) in vec2 aPos;\n"
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"out vec4 vColor;\n"
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"void main()\n"
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"{\n"
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" gl_Position = vec4(aPos.x, aPos.y, 0.0, 1.0);\n"
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" vec2 tmp = (aPos+vec2(1.0, 1.0))*0.5;\n"
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" vColor = vec4(tmp.x, 0, tmp.y, 1.0);\n"
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"}\0"
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);
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LOG(vert->log());
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auto frag = std::make_shared<nb::Shader>(
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GL_FRAGMENT_SHADER,
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"#version 330 core\n"
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"in vec4 vColor;\n"
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"out vec4 FragColor;\n"
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"void main()\n"
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"{\n"
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" FragColor = vColor;\n"
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"}\n\0"
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);
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LOG(frag->log());
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nb::ByteVector data = nb::vectorToBytes<float>({
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-0.5, -0.5,
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0, 0.5,
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0.5, -0.5
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});
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nb::Program prog({vert, frag});
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prog.bind();
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std::vector<uint32_t> indxs = {0, 1, 2};
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nb::VertexGroup tri(data, {
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nb::VertexAttribute{
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2,
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GL_FLOAT,
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false,
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{0, 8}
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},
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}, indxs);
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LOG(prog.log());
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GLFWwindow* window_ptr = window.getWindow();
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while(!glfwWindowShouldClose(window_ptr)) {
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OPENGL_CALL(glClearColor(0.2f, 0.3f, 0.3f, 1.0f));
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OPENGL_CALL(glClear(GL_COLOR_BUFFER_BIT));
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tri.draw();
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glfwPollEvents();
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glfwSwapBuffers(window_ptr);
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}
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return 0;
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} |