generated from karl/cpp-template
64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
#include "MCRenderer.h"
|
|
#include "Framebuffer3D.h"
|
|
#include "VertexBuffer.h"
|
|
#include <glm/ext/matrix_transform.hpp>
|
|
|
|
MCRenderer::MCRenderer()
|
|
: render_shader(Shader("Shader/mc.vs", "Shader/mc.fs", "Shader/mc.gs")),
|
|
noise_shader(Shader("Shader/noise.vs", "Shader/noise.fs")), noise(Framebuffer3D(64, 64, 64)),
|
|
camera(Camera(90, 1920, 1080, 0.1, 1000.0)) {
|
|
float data[6][2] = {{-1.0f, -1.0f}, {-1.0, 1.0}, {1.0, -1.0},
|
|
{1.0f, 1.0f}, {-1.0, 1.0}, {1.0, -1.0}};
|
|
|
|
// Move the camera a bit
|
|
camera.translate(glm::vec3(32.0, 32.0, 32.0));
|
|
|
|
vertex_rectangle.set_data(sizeof(data), data, GL_STATIC_DRAW);
|
|
}
|
|
|
|
void MCRenderer::render(float delta) {
|
|
// Create the noise
|
|
glViewport(0, 0, 64, 64);
|
|
|
|
noise_shader.use();
|
|
noise.bind_and_clear();
|
|
|
|
noise_shader.setFloat("height", 0);
|
|
|
|
for (int i = 0; i < 64; i++) {
|
|
// Create one layer
|
|
noise_shader.setFloat("layer", i * (1.0f / 63.0f));
|
|
noise.bind_layer(i);
|
|
|
|
// Each layer is made up of a rectangle of vertices
|
|
vertex_rectangle.draw();
|
|
}
|
|
|
|
// Actual rendering
|
|
glViewport(0, 0, 1920, 1080);
|
|
render_shader.use();
|
|
|
|
// Bind the screen framebuffer
|
|
glBindFramebuffer(GL_FRAMEBUFFER, 0);
|
|
// glDrawBuffer(GL_BACK);
|
|
|
|
glClearColor(0.6f, 0.9f, 0.9f, 1.0f);
|
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
|
|
|
// Set the camera position
|
|
camera.rotate(delta, glm::vec3(0.0, 1.0, 0.0));
|
|
|
|
// Bind the camera to the rendering shader
|
|
render_shader.setMat4("proj", camera.get_projection());
|
|
render_shader.setMat4("view", camera.get_view());
|
|
|
|
// Bind the noise texture to the rendering shader
|
|
noise.bind_to(0);
|
|
|
|
// Draw all layers as polygons
|
|
mc_points.bind();
|
|
glDrawArrays(GL_POINTS, 0, 64 * 64 * 64);
|
|
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
|
|
|
|
time_passed += delta;
|
|
} |