, outline()
, outline_visible(false)
, outline_transform(1.0f)
-, light_position(17.0f, 17.0f, 17.0f)
-, light_color(1.0f, 1.0f, 1.0f)
-, light_power(250.0f)
-, m_handle(0)
-, v_handle(0)
-, mv_handle(0)
-, mvp_handle(0)
-, light_position_handle(0)
-, light_color_handle(0)
-, light_power_handle(0)
, running(false)
, front(false)
, back(false)
, remove_id(0)
, place_id(1) {
GLContext::EnableVSync();
- GLContext::EnableDepthTest();
- GLContext::EnableBackfaceCulling();
- program.LoadShader(
- GL_VERTEX_SHADER,
- "#version 330 core\n"
- "layout(location = 0) in vec3 vtx_position;\n"
- "layout(location = 1) in vec3 vtx_color;\n"
- "layout(location = 2) in vec3 vtx_normal;\n"
- "uniform mat4 M;\n"
- "uniform mat4 V;\n"
- "uniform mat4 MV;\n"
- "uniform mat4 MVP;\n"
- "uniform vec3 light_position;\n"
- "out vec3 frag_color;\n"
- "out vec3 vtx_world;\n"
- "out vec3 normal;\n"
- "out vec3 eye;\n"
- "out vec3 light_direction;\n"
- "void main() {\n"
- "vec4 v = vec4(vtx_position, 1);\n"
- "gl_Position = MVP * v;\n"
- "vtx_world = (M * v).xyz;\n"
- "vec3 vtx_camera = (MV * v).xyz;\n"
- "eye = vec3(0, 0, 0) - vtx_camera;\n"
- "vec3 light_camera = (V * v).xyz;\n"
- "light_direction = light_position + eye;\n"
- "normal = (MV * vec4(vtx_normal, 0)).xyz;\n"
- "frag_color = vtx_color;\n"
- "}\n"
- );
- program.LoadShader(
- GL_FRAGMENT_SHADER,
- "#version 330 core\n"
- "in vec3 frag_color;\n"
- "in vec3 vtx_world;\n"
- "in vec3 normal;\n"
- "in vec3 eye;\n"
- "in vec3 light_direction;\n"
- "uniform mat4 MV;\n"
- "uniform vec3 light_position;\n"
- "uniform vec3 light_color;\n"
- "uniform float light_power;\n"
- "out vec3 color;\n"
- "void main() {\n"
- "vec3 ambient = vec3(0.1, 0.1, 0.1) * frag_color;\n"
- "vec3 specular = vec3(0.3, 0.3, 0.3);\n"
- "float distance = length(light_position - vtx_world);\n"
- "vec3 n = normalize(normal);\n"
- "vec3 l = normalize(light_direction);\n"
- "float cos_theta = clamp(dot(n, l), 0, 1);\n"
- "vec3 E = normalize(eye);\n"
- "vec3 R = reflect(-l, n);\n"
- "float cos_alpha = clamp(dot(E, R), 0, 1);\n"
- "color = ambient"
- " + frag_color * light_color * light_power * cos_theta / (distance * distance)"
- " + specular * light_color * light_power * pow(cos_alpha, 5) / (distance * distance);\n"
- "}\n"
- );
- program.Link();
- if (!program.Linked()) {
- program.Log(std::cerr);
- throw std::runtime_error("link program");
- }
GLuint VertexArrayID;
glGenVertexArrays(1, &VertexArrayID);
outline.colors.resize(24, { -1, -1, -1 });
outline.Invalidate();
- m_handle = program.UniformLocation("M");
- v_handle = program.UniformLocation("V");
- mv_handle = program.UniformLocation("MV");
- mvp_handle = program.UniformLocation("MVP");
- light_position_handle = program.UniformLocation("light_position");
- light_color_handle = program.UniformLocation("light_color");
- light_power_handle = program.UniformLocation("light_power");
-
glClearColor(0.0, 0.0, 0.0, 1.0);
}
void Application::Render() {
GLContext::Clear();
- program.Use();
+ program.Activate();
- glUniformMatrix4fv(v_handle, 1, GL_FALSE, &cam.View()[0][0]);
- glUniform3f(light_position_handle, light_position.x, light_position.y, light_position.z);
- glUniform3f(light_color_handle, light_color.x, light_color.y, light_color.z);
- glUniform1f(light_power_handle, light_power);
+ program.SetVP(cam.View(), cam.Projection());
for (Chunk &chunk : world.LoadedChunks()) {
- glm::mat4 m(chunk.Transform());
- glm::mat4 mv(cam.View() * m);
- glm::mat4 mvp(cam.MakeMVP(m));
- glUniformMatrix4fv(m_handle, 1, GL_FALSE, &m[0][0]);
- glUniformMatrix4fv(mv_handle, 1, GL_FALSE, &mv[0][0]);
- glUniformMatrix4fv(mvp_handle, 1, GL_FALSE, &mvp[0][0]);
+ program.SetM(chunk.Transform());
chunk.Draw();
}
if (outline_visible) {
- glm::mat4 m(outline_transform);
- glm::mat4 mv(cam.View() * outline_transform);
- glm::mat4 mvp(cam.MakeMVP(outline_transform));
- glUniformMatrix4fv(m_handle, 1, GL_FALSE, &m[0][0]);
- glUniformMatrix4fv(mv_handle, 1, GL_FALSE, &mv[0][0]);
- glUniformMatrix4fv(mvp_handle, 1, GL_FALSE, &mvp[0][0]);
+ program.SetM(outline_transform);
outline.Draw();
}