DebugRenderer::DebugRenderer (int pointCount, const ContactPoint *points, int traceCount, const TraceData *traceData, const std::vector<b2Vec2>& waterIntersectionPoints, const DebugRendererData& data) :
b2Draw(), _activeProgram(0), _pointCount(pointCount), _points(points), _traceCount(traceCount), _traceData(
traceData), _waterIntersectionPoints(waterIntersectionPoints), _enableTextureArray(false)
{
memset(_colorArray, 0, sizeof(_colorArray));
#ifndef NO_DEBUG_RENDERER
if (GLContext::get().areShadersSupported()) {
glGetIntegerv(GL_ACTIVE_PROGRAM, &_activeProgram);
const GLenum glError = glGetError();
if (glError != GL_INVALID_ENUM)
GLContext::get().ctx_glUseProgram(0);
else
_activeProgram = 0;
}
SetFlags(b2Draw::e_shapeBit | b2Draw::e_jointBit | b2Draw::e_aabbBit | b2Draw::e_pairBit
| b2Draw::e_centerOfMassBit);
GL_checkError();
glPushMatrix();
const float scale = static_cast<float>(data.scale);
const float x = static_cast<float>(data.x / scale);
const float y = static_cast<float>(data.y / scale);
glScalef(scale, scale, 1.0f);
glTranslatef(x, y, 0.0f);
glDisable(GL_TEXTURE_2D);
_enableTextureArray = glIsEnabled(GL_TEXTURE_COORD_ARRAY);
if (_enableTextureArray)
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
GL_checkError();
#endif
}
bool WaterShader::use (int x, int y, int w, int h)
{
if (!_initialized)
return false;
if (!activate())
return false;
float angle = _time * M_PI_2;
if (angle > M_PI_2)
angle -= M_PI_2;
_displacement->bindTexture(0);
_water->bindTexture(1);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GL_checkError();
glEnable(GL_BLEND);
GL_checkError();
setUniformMatrix("u_worldView", _modelViewMatrix);
setUniformi("u_texture", 0);
setUniformi("u_texture2", 1);
setUniformf("timedelta", -angle);
createAndBindAttributesArray(x, y, w, h);
GL_checkError();
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
GL_checkError();
deactivate();
return true;
}
void UIRendererGL::BeginPaint(int render_target_w, int render_target_h) {
#ifdef TB_RUNTIME_DEBUG_INFO
dbg_bitmap_validations = 0;
#endif
TBRendererBatcher::BeginPaint(render_target_w, render_target_h);
_shader.activate();
const glm::mat4& ortho = glm::ortho(0.0f, (float) render_target_w, (float) render_target_h, 0.0f, -1.0f, 1.0f);
_shader.setUniformMatrix("u_projection", ortho, false);
g_current_texture = (GLuint) -1;
g_current_batch = nullptr;
glViewport(0, 0, render_target_w, render_target_h);
glScissor(0, 0, render_target_w, render_target_h);
glEnable(GL_BLEND);
glEnable(GL_TEXTURE_2D);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GL_checkError();
}
bool UIRendererGL::init() {
if (!_shader.loadProgram("shaders/ui"))
return false;
glGenBuffers(1, &_buffer);
GL_checkError();
return true;
}
void DebugRenderer::DrawSolidCircle (const b2Vec2& center, float32 radius, const b2Vec2& axis, const b2Color& color)
{
#ifndef NO_DEBUG_RENDERER
const float32 k_segments = 16.0f;
const int vertexCount = 16;
const float32 k_increment = 2.0f * b2_pi / k_segments;
float32 theta = 0.0f;
GLfloat glVertices[vertexCount * 2];
for (int i = 0; i < k_segments; ++i) {
const b2Vec2 v = center + radius * b2Vec2(cosf(theta), sinf(theta));
glVertices[i * 2] = v.x;
glVertices[i * 2 + 1] = v.y;
theta += k_increment;
}
setColorPointer(color, 0.5f, vertexCount);
glVertexPointer(2, GL_FLOAT, 0, glVertices);
glDrawArrays(GL_TRIANGLE_FAN, 0, vertexCount);
setColorPointer(color, 1.0f, vertexCount);
glDrawArrays(GL_LINE_LOOP, 0, vertexCount);
GL_checkError();
// Draw the axis line
DrawSegment(center, center + radius * axis, color);
#endif
}
void Client::renderBackground() {
_camera.setAngles(-M_PI_2, M_PI);
_camera.setPosition(glm::vec3(0.0f, 100.0f, 0.0f));
_camera.update();
const glm::mat4& view = _camera.getViewMatrix();
const glm::mat4& projection = glm::perspective(45.0f, _aspect, 0.1f, 1000.0f);
_meshShader->activate();
_meshShader->setUniformMatrix("u_view", view, false);
_meshShader->setUniformMatrix("u_projection", projection, false);
_meshShader->setUniformVec3("u_lightpos", _lightPos);
_meshShader->setUniformVec3("u_diffusecolor", _diffuseColor);
_meshShader->setUniformVec3("u_specularcolor", _specularColor);
_meshShader->setUniformi("u_texture", 0);
const video::MeshPtr& mesh = _meshPool->getMesh("animal_rabbit");
if (mesh->initMesh(_meshShader)) {
const glm::mat4& translate = glm::translate(glm::mat4(1.0f), glm::vec3(0.0f, 0.0f, 20.0f));
const glm::mat4& scale = glm::scale(translate, glm::vec3(0.01f));
const glm::mat4& model = glm::rotate(scale, (float) glm::sin(_now / 100L), glm::vec3(0.0, 1.0, 0.0));
_meshShader->setUniformMatrix("u_model", model, false);
mesh->render();
_drawCallsEntities = 0;
}
_meshShader->deactivate();
glBindVertexArray(0);
glBindTexture(GL_TEXTURE_2D, 0);
GL_checkError();
}
DebugRenderer::~DebugRenderer ()
{
#ifndef NO_DEBUG_RENDERER
const float32 k_impulseScale = 0.1f;
const float32 k_axisScale = 0.3f;
const bool drawFrictionImpulse = true;
const bool drawContactNormals = true;
const bool drawContactImpulse = true;
for (int i = 0; i < _pointCount; ++i) {
const ContactPoint* point = &_points[i];
if (point->state == b2_addState) {
DrawPoint(point->position, 0.2f, b2Color(0.3f, 0.95f, 0.3f));
} else if (point->state == b2_persistState) {
DrawPoint(point->position, 0.1f, b2Color(0.3f, 0.3f, 0.95f));
}
if (drawContactNormals) {
const b2Vec2& p1 = point->position;
const b2Vec2 p2 = p1 + k_axisScale * point->normal;
DrawSegment(p1, p2, b2Color(0.9f, 0.9f, 0.9f));
}
if (drawContactImpulse) {
const b2Vec2& p1 = point->position;
const b2Vec2 p2 = p1 + k_impulseScale * point->normalImpulse * point->normal;
DrawSegmentWithAlpha(p1, p2, b2Color(0.9f, 0.9f, 0.3f), 0.5f);
}
if (drawFrictionImpulse) {
const b2Vec2 tangent = b2Cross(point->normal, 1.0f);
const b2Vec2& p1 = point->position;
const b2Vec2 p2 = p1 + k_impulseScale * point->tangentImpulse * tangent;
DrawSegment(p1, p2, b2Color(0.9f, 0.9f, 0.3f));
}
}
for (int i = 0; i < _traceCount; ++i) {
const TraceData* data = &_traceData[i];
DrawSegment(data->start, data->end, b2Color(0.9f, 0.0f, 0.0f));
DrawPoint(data->start, 0.2f, b2Color(0.0f, 0.95f, 0.3f));
DrawPoint(data->end, 0.2f, b2Color(0.3f, 0.7f, 0.0f));
}
if (!_waterIntersectionPoints.empty())
DrawPolygon(&_waterIntersectionPoints[0], _waterIntersectionPoints.size(), b2Color(0.0f, 1.0f, 1.0f));
if (_enableTextureArray)
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnable(GL_TEXTURE_2D);
glPopMatrix();
GL_checkError();
if (_activeProgram != 0)
GLContext::get().ctx_glUseProgram(_activeProgram);
#endif
}
void DebugRenderer::DrawPolygon (const b2Vec2* vertices, int vertexCount, const b2Color& color)
{
#ifndef NO_DEBUG_RENDERER
setColorPointer(color, 1.0f, vertexCount);
glVertexPointer(2, GL_FLOAT, 0, vertices);
glDrawArrays(GL_LINE_LOOP, 0, vertexCount);
GL_checkError();
#endif
}
void DebugRenderer::DrawSegmentWithAlpha (const b2Vec2& p1, const b2Vec2& p2, const b2Color& color, float alpha)
{
#ifndef NO_DEBUG_RENDERER
setColorPointer(color, alpha, 2);
const GLfloat glVertices[] = { p1.x, p1.y, p2.x, p2.y };
glVertexPointer(2, GL_FLOAT, 0, glVertices);
glDrawArrays(GL_LINES, 0, 2);
GL_checkError();
#endif
}
void UIRendererGL::EndPaint() {
TBRendererBatcher::EndPaint();
_shader.deactivate();
glBindBuffer(GL_ARRAY_BUFFER, 0);
#ifdef TB_RUNTIME_DEBUG_INFO
if (TB_DEBUG_SETTING(RENDER_BATCHES))
TBDebugPrint("Frame caused %d bitmap validations.\n", dbg_bitmap_validations);
#endif
GL_checkError();
}
void UIRendererGL::RenderBatch(Batch *batch) {
BindBitmap(batch->bitmap);
if (g_current_batch != batch) {
g_current_batch = batch;
}
glBindBuffer(GL_ARRAY_BUFFER, _buffer);
glBufferData(GL_ARRAY_BUFFER, sizeof(Vertex) * batch->vertex_count, batch->vertex, GL_STATIC_DRAW);
glVertexAttribPointer(_shader.enableVertexAttribute("a_color"), 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(Vertex), GL_OFFSET(offsetof(Batch, vertex[0].col)));
glVertexAttribPointer(_shader.enableVertexAttribute("a_texcoord"), 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), GL_OFFSET(offsetof(Batch, vertex[0].u)));
glVertexAttribPointer(_shader.enableVertexAttribute("a_pos"), 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), GL_OFFSET(offsetof(Batch, vertex[0].x)));
glDrawArrays(GL_TRIANGLES, 0, batch->vertex_count);
GL_checkError();
}
void DebugRenderer::DrawPoint (const b2Vec2& p, float32 size, const b2Color& color)
{
#ifndef NO_DEBUG_RENDERER
setColorPointer(color, 1.0f, 4);
const float minx = p.x - size / 2.0f;
const float maxx = p.x + size / 2.0f;
const float miny = p.y - size / 2.0f;
const float maxy = p.y + size / 2.0f;
const float vertices[] = { minx, miny, maxx, miny, minx, maxy, maxx, maxy };
glVertexPointer(2, GL_FLOAT, 0, vertices);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
GL_checkError();
#endif
}
bool UIBitmapGL::Init(int width, int height, uint32 *data) {
assert(width == TBGetNearestPowerOfTwo(width));
assert(height == TBGetNearestPowerOfTwo(height));
m_w = width;
m_h = height;
glGenTextures(1, &m_texture);
BindBitmap(this);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
GL_checkError();
SetData(data);
return true;
}
void UIRendererGL::SetClipRect(const TBRect &rect) {
glScissor(m_clip_rect.x, m_screen_rect.h - (m_clip_rect.y + m_clip_rect.h), m_clip_rect.w, m_clip_rect.h);
GL_checkError();
}
void Client::renderMap() {
voxel::DecodedMeshData mesh;
if (_world->pop(mesh)) {
// Now add the mesh to the list of meshes to render.
addMeshData(createMesh(mesh.mesh, mesh.translation, 1.0f));
}
_drawCallsWorld = 0;
_drawCallsEntities = 0;
// TODO: use polyvox VolumeResampler to create a minimap of your volume
// RawVolume<uint8_t> volDataLowLOD(PolyVox::Region(Vector3DInt32(0, 0, 0), Vector3DInt32(15, 31, 31)));
// VolumeResampler< RawVolume<uint8_t>, RawVolume<uint8_t> > volumeResampler(&volData, PolyVox::Region(Vector3DInt32(0, 0, 0), Vector3DInt32(31, 63, 63)), &volDataLowLOD, volDataLowLOD.getEnclosingRegion());
// volumeResampler.execute();
// auto meshLowLOD = extractMarchingCubesMesh(&volDataLowLOD, volDataLowLOD.getEnclosingRegion());
// auto decodedMeshLowLOD = decodeMesh(meshLowLOD);
const bool left = _moveMask & MoveDirection_MOVELEFT;
const bool right = _moveMask & MoveDirection_MOVERIGHT;
const bool forward = _moveMask & MoveDirection_MOVEFORWARD;
const bool backward = _moveMask & MoveDirection_MOVEBACKWARD;
_camera.updatePosition(_deltaFrame, left, right, forward, backward);
_camera.updateViewMatrix();
glClear(GL_DEPTH_BUFFER_BIT);
glEnable(GL_DEPTH_TEST);
//glEnable(GL_CULL_FACE);
//glCullFace(GL_BACK);
GL_checkError();
const glm::mat4& view = _camera.getViewMatrix();
const glm::mat4& projection = glm::perspective(45.0f, _aspect, 0.1f, 1000.0f);
_waterShader->activate();
_waterShader->setUniformMatrix("u_model", glm::mat4(1.0f), false);
_waterShader->setUniformMatrix("u_view", view, false);
_waterShader->setUniformMatrix("u_projection", projection, false);
_waterShader->setUniformVec3("u_lightpos", _lightPos);
_waterShader->setUniformVec3("u_diffusecolor", _diffuseColor);
_waterShader->setUniformVec3("u_specularcolor", _specularColor);
_waterShader->setUniformi("u_texture", 0);
_waterShader->setUniformf("u_wavetime", 0.5f);
_waterShader->setUniformf("u_wavewidth", 0.6f);
_waterShader->setUniformf("u_waveheight", 1.0f);
_waterTexture->bind();
glBindVertexArray(_waterData.vertexArrayObject);
glDrawElements(GL_TRIANGLES, _waterData.noOfIndices, _waterData.indexType, 0);
++_drawCallsWorld;
glBindVertexArray(0);
_waterTexture->unbind();
_waterShader->deactivate();
GL_checkError();
_worldShader.activate();
_worldShader.setUniformMatrix("u_view", view, false);
_worldShader.setUniformMatrix("u_projection", projection, false);
_worldShader.setUniformf("u_fogrange", _fogRange);
_worldShader.setUniformf("u_viewdistance", _viewDistance);
_worldShader.setUniformi("u_texture", 0);
_worldShader.setUniformVec3("u_lightpos", _lightPos);
_colorTexture->bind();
for (auto i = _meshData.begin(); i != _meshData.end();) {
const video::GLMeshData& meshData = *i;
if (isCulled(meshData.translation)) {
destroyMeshData(meshData);
i = _meshData.erase(i);
continue;
}
const glm::mat4& model = glm::translate(glm::mat4(1.0f), glm::vec3(meshData.translation.x, 0, meshData.translation.y));
_worldShader.setUniformMatrix("u_model", model, false);
glBindVertexArray(meshData.vertexArrayObject);
glDrawElements(GL_TRIANGLES, meshData.noOfIndices, meshData.indexType, 0);
++_drawCallsWorld;
++i;
}
_worldShader.deactivate();
GL_checkError();
_meshShader->activate();
_meshShader->setUniformMatrix("u_view", view, false);
_meshShader->setUniformMatrix("u_projection", projection, false);
_meshShader->setUniformVec3("u_lightpos", _lightPos);
_meshShader->setUniformVec3("u_diffusecolor", _diffuseColor);
_meshShader->setUniformVec3("u_specularcolor", _specularColor);
_meshShader->setUniformi("u_texture", 0);
for (const auto& e : _entities) {
const frontend::ClientEntityPtr& ent = e.second;
ent->update(_now);
const video::MeshPtr& mesh = ent->mesh();
if (!mesh->initMesh(_meshShader))
continue;
const glm::mat4& translate = glm::translate(glm::mat4(1.0f), ent->position());
const glm::mat4& scale = glm::scale(translate, glm::vec3(0.01f));
const glm::mat4& model = glm::rotate(scale, ent->orientation(), glm::vec3(0.0, 1.0, 0.0));
_meshShader->setUniformMatrix("u_model", model, false);
mesh->render();
++_drawCallsEntities;
}
_meshShader->deactivate();
glBindVertexArray(0);
glBindTexture(GL_TEXTURE_2D, 0);
GL_checkError();
const glm::ivec2& camXZ = _world->getGridPos(_camera.getPosition());
const glm::vec2 diff = _lastCameraPosition - camXZ;
if (glm::length(diff.x) >= 1 || glm::length(diff.y) >= 1) {
_lastCameraPosition = camXZ;
extractMeshAroundCamera(40);
}
glBindVertexArray(0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glDisable(GL_DEPTH_TEST);
//glDisable(GL_CULL_FACE);
GL_checkError();
}
core::AppState Client::onInit() {
eventBus()->subscribe<network::NewConnectionEvent>(*this);
eventBus()->subscribe<network::DisconnectEvent>(*this);
eventBus()->subscribe<voxel::WorldCreatedEvent>(*this);
GLDebug::enable(GLDebug::Medium);
core::AppState state = UIApp::onInit();
if (state != core::Running)
return state;
if (!_network->start())
return core::Cleanup;
core::Var::get(cfg::ClientName, "noname");
core::Var::get(cfg::ClientPassword, "nopassword");
if (!_worldShader.init()) {
return core::Cleanup;
}
if (!_meshShader->init()) {
return core::Cleanup;
}
if (!_waterShader->init()) {
return core::Cleanup;
}
_waterTexture = video::TexturePtr(new video::Texture("texture/water.png"));
_waterTexture->load();
const glm::vec3 vertices[4] = { glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3(0.0f, 1.0f, 0.0f), glm::vec3(1.0f, 0.0f, 0.0f), glm::vec3(1.0f,
1.0f, 0.0f) };
const glm::ivec3 indices[2] = { glm::ivec3( 0, 1, 2 ), glm::ivec3( 1, 3, 2 ) };
glGenVertexArrays(1, &_waterData.vertexArrayObject);
core_assert(_waterData.vertexArrayObject > 0);
glBindVertexArray(_waterData.vertexArrayObject);
glGenBuffers(1, &_waterData.vertexBuffer);
core_assert(_waterData.vertexBuffer > 0);
glBindBuffer(GL_ARRAY_BUFFER, _waterData.vertexBuffer);
glBufferData(GL_ARRAY_BUFFER, 4 * sizeof(glm::vec3), vertices, GL_STATIC_DRAW);
glGenBuffers(1, &_waterData.indexBuffer);
core_assert(_waterData.indexBuffer > 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _waterData.indexBuffer);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, 2 * sizeof(glm::ivec2), indices, GL_STATIC_DRAW);
const int posLoc = _waterShader->enableVertexAttribute("a_pos");
glVertexAttribPointer(posLoc, 3, GL_FLOAT, GL_FALSE, sizeof(voxel::VoxelVertexDecoded),
GL_OFFSET(offsetof(voxel::VoxelVertexDecoded, position)));
glBindVertexArray(0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
_waterData.noOfIndices = 2;
_waterData.scale = 1.0f;
_waterData.indexType = GL_UNSIGNED_INT;
GL_checkError();
_camera.init(_width, _height);
registerMoveCmd("+move_right", MOVERIGHT);
registerMoveCmd("+move_left", MOVELEFT);
registerMoveCmd("+move_forward", MOVEFORWARD);
registerMoveCmd("+move_backward", MOVEBACKWARD);
const int ColorTextureSize = 256;
uint8_t colorTexture[ColorTextureSize * ColorTextureSize * 3];
noise::Simplex::SeamlessNoise2DRGB(colorTexture, ColorTextureSize, 3, 0.3f, 0.7f);
_colorTexture = video::TexturePtr(new video::Texture(colorTexture, ColorTextureSize, ColorTextureSize, 3));
_clearColor = glm::vec3(0.0, 0.6, 0.796);
_root.SetSkinBg(TBIDC("background"));
new frontend::LoginWindow(this);
SDL_GL_SetSwapInterval(core::Var::get(cfg::ClientVSync, "false")->boolVal());
return state;
}
