public void init()
{
// Init random generator
_rand = new Random((int)DateTime.Now.Ticks);
// Load character with walk animation
int characterRes = Horde3D.addResource(Horde3D.ResourceTypes.SceneGraph, "man.scene.xml", 0);
int characterWalkRes = Horde3D.addResource(Horde3D.ResourceTypes.Animation, "man.anim", 0);
Horde3DUtils.loadResourcesFromDisk("content");
// Add characters
for (int i = 0; i < 100; ++i)
{
Particle p = new Particle();
// Add character to scene and apply animation
p.node = Horde3D.addNodes(Horde3D.RootNode, characterRes);
Horde3D.setupModelAnimStage(p.node, 0, characterWalkRes, string.Empty, false);
// Characters start in a circle formation
p.px = (float)Math.Sin((i / 100.0f) * 6.28f) * 20.0f;
p.pz = (float)Math.Cos((i / 100.0f) * 6.28f) * 20.0f;
chooseDestination(ref p);
Horde3D.setNodeTransform(p.node, p.px, 0.02f, p.pz, 0, 0, 0, 1, 1, 1);
_particles.Add(p);
}
}
public void mainLoop(float fps)
{
_curFPS = fps;
_timer += 1 / fps;
Horde3D.setOption(Horde3D.EngineOptions.DebugViewMode, _debugViewMode ? 1.0f : 0.0f);
if (!_freeze)
{
_animTime += 1.0f / _curFPS;
// Do animation blending
Horde3D.setModelAnimParams(_knight, 0, _animTime * 24.0f, _weight);
Horde3D.setModelAnimParams(_knight, 1, _animTime * 24.0f, 1.0f - _weight);
// Animate particle system
Horde3D.advanceEmitterTime(_particleSys, 1.0f / _curFPS);
}
// Set camera parameters
Horde3D.setNodeTransform(Horde3D.PrimeTimeCam, _x, _y, _z, _rx, _ry, 0, 1, 1, 1);
if (_showFPS)
{
// Avoid updating FPS text every frame to make it readable
if (_timer > 0.3f)
{
_fpsText = string.Format("FPS: {0:F2}", fps);
_timer = 0;
}
// Show text
if (_fpsText != null)
{
Horde3DUtils.showText(_fpsText, 0, 0.95f, 0.03f, 0, _fontMatRes);
}
string text = string.Format("Weight: {0:F2}", _weight);
Horde3DUtils.showText(text, 0, 0.91f, 0.03f, 0, _fontMatRes);
}
// Show logo
Horde3D.showOverlay(0.75f, 0, 0, 0, 1, 0, 1, 0,
1, 0.2f, 1, 1, 0.75f, 0.2f, 0, 1,
7, _logoMatRes);
// Render scene
Horde3D.render();
// Write all messages to log file
Horde3DUtils.dumpMessages();
}
public void resize(int width, int height)
{
if (!_initialized)
{
return;
}
// Resize viewport
Horde3D.resize(0, 0, width, height);
// Set virtual camera parameters
Horde3D.setupCameraView(Horde3D.PrimeTimeCam, 45.0f, (float)width / height, 0.1f, 1000.0f);
}
/// <summary>
/// All application initialization is performed here, before the main loop thread is executed and the render panel is displayed for the first time.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void RenderForm_Load(object sender, EventArgs e)
{
if (!Horde3DUtils.initOpenGL(PInvoke.GetDC(renderPanel.Handle).ToInt32()))
{
throw new Exception("Failed to initialize OpenGL");
}
if (!app.init())
{
MessageBox.Show("Failed to init application.\nMake sure you have an OpenGL 2.0 compatible graphics card with the latest drivers installed!\nAlso verify if the pipeline config file exists.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
Horde3D.release();
Horde3DUtils.releaseOpenGL();
Environment.Exit(0);
}
app.resize(renderPanel.Size.Width, renderPanel.Size.Height);
}
public void mainLoop(float fps)
{
_curFPS = fps;
_timer += 1 / fps;
Horde3D.setOption(Horde3D.EngineOptions.DebugViewMode, _debugViewMode ? 1.0f : 0.0f);
if (!_freeze)
{
_crowdSim.update(_curFPS);
}
// Set camera parameters
Horde3D.setNodeTransform(Horde3D.PrimeTimeCam, _x, _y, _z, _rx, _ry, 0, 1, 1, 1);
if (_showFPS)
{
// Avoid updating FPS text every frame to make it readable
if (_timer > 0.3f)
{
_fpsText = string.Format("FPS: {0:F2}", fps);
_timer = 0;
}
// Show text
if (_fpsText != null)
{
Horde3DUtils.showText(_fpsText, 0, 0.95f, 0.03f, 0, _fontMatRes);
}
}
// Show logo
Horde3D.showOverlay(0.75f, 0, 0, 0, 1, 0, 1, 0,
1, 0.2f, 1, 1, 0.75f, 0.2f, 0, 1,
7, _logoMatRes);
// Render scene
Horde3D.render();
// Write all messages to log file
Horde3DUtils.dumpMessages();
}
public bool init()
{
// Initialize engine
if (!Horde3D.init())
{
Horde3DUtils.dumpMessages();
return(false);
}
// Set paths for resources
Horde3D.setResourcePath(Horde3D.ResourceTypes.SceneGraph, "models");
Horde3D.setResourcePath(Horde3D.ResourceTypes.Geometry, "models");
Horde3D.setResourcePath(Horde3D.ResourceTypes.Animation, "models");
Horde3D.setResourcePath(Horde3D.ResourceTypes.Material, "materials");
Horde3D.setResourcePath(Horde3D.ResourceTypes.Code, "shaders");
Horde3D.setResourcePath(Horde3D.ResourceTypes.Shader, "shaders");
Horde3D.setResourcePath(Horde3D.ResourceTypes.Texture2D, "textures");
Horde3D.setResourcePath(Horde3D.ResourceTypes.TextureCube, "textures");
Horde3D.setResourcePath(Horde3D.ResourceTypes.Effect, "effects");
// Load pipeline configuration
if (!Horde3D.loadPipelineConfig("pipeline_Knight.xml"))
{
Horde3DUtils.dumpMessages();
return(false);
}
// Set options
Horde3D.setOption(Horde3D.EngineOptions.LoadTextures, 1);
Horde3D.setOption(Horde3D.EngineOptions.TexCompression, 0);
Horde3D.setOption(Horde3D.EngineOptions.FastAnimation, 0);
Horde3D.setOption(Horde3D.EngineOptions.AnisotropyFactor, 8);
Horde3D.setOption(Horde3D.EngineOptions.ShadowMapSize, 2048);
// Add resources
// Font
_fontMatRes = Horde3D.addResource(Horde3D.ResourceTypes.Material, "font.material.xml", 0);
// Logo
_logoMatRes = Horde3D.addResource(Horde3D.ResourceTypes.Material, "logo.material.xml", 0);
// Environment
int envRes = Horde3D.addResource(Horde3D.ResourceTypes.SceneGraph, "scene.scene.xml", 0);
// Knight
int knightRes = Horde3D.addResource(Horde3D.ResourceTypes.SceneGraph, "knight.scene.xml", 0);
int knightAnim1Res = Horde3D.addResource(Horde3D.ResourceTypes.Animation, "knight_order.anim", 0);
int knightAnim2Res = Horde3D.addResource(Horde3D.ResourceTypes.Animation, "knight_attack.anim", 0);
// Particle system
int particleSysRes = Horde3D.addResource(Horde3D.ResourceTypes.SceneGraph, "particleSys1.scene.xml", 0);
// Load resources
Horde3DUtils.loadResourcesFromDisk("content");
// Add scene nodes
// Add environment
Horde3D.addNodes(Horde3D.RootNode, envRes);
// Add knight
_knight = Horde3D.addNodes(Horde3D.RootNode, knightRes);
Horde3D.setNodeTransform(_knight, 0, 0, 0, 0, 180, 0, 0.1f, 0.1f, 0.1f);
Horde3D.setupModelAnimStage(_knight, 0, knightAnim1Res, string.Empty, false);
Horde3D.setupModelAnimStage(_knight, 1, knightAnim2Res, string.Empty, false);
// Attach particle system to hand joint
int hand = Horde3D.getNodeChild(_knight, "Bip01_R_Hand", 0, true);
_particleSys = Horde3D.addNodes(hand, particleSysRes);
Horde3D.setNodeTransform(_particleSys, 0, 40, 0, 90, 0, 0, 1, 1, 1);
// Add light source
int light = Horde3D.addLightNode(Horde3D.RootNode, "Light1", 0, "LIGHTING", "SHADOWMAP");
Horde3D.setNodeTransform(light, 0, 1, 15, 30, 0, 0, 1, 1, 1);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.Radius, 30);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.FOV, 90);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.ShadowMapCount, 1);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.ShadowMapBias, 0.01f);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.Col_R, 1.0f);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.Col_G, 0.7f);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.Col_B, 0.7f);
// Customize post processing effects
int matRes = Horde3D.findResource(Horde3D.ResourceTypes.Material, "postHDR.material.xml");
// hdrParams: exposure, brightpass threshold, brightpass offset
Horde3D.setMaterialUniform(matRes, "hdrParams", 2.5f, 0.6f, 0.06f, 0);
_initialized = true;
return(true);
}
public void release()
{
// Release engine
Horde3D.release();
}
public bool init()
{
// Initialize engine
if (!Horde3D.init())
{
Horde3DUtils.dumpMessages();
return(false);
}
// Set paths for resources
Horde3D.setResourcePath(Horde3D.ResourceTypes.SceneGraph, "models");
Horde3D.setResourcePath(Horde3D.ResourceTypes.Geometry, "models");
Horde3D.setResourcePath(Horde3D.ResourceTypes.Animation, "models");
Horde3D.setResourcePath(Horde3D.ResourceTypes.Material, "materials");
Horde3D.setResourcePath(Horde3D.ResourceTypes.Code, "shaders");
Horde3D.setResourcePath(Horde3D.ResourceTypes.Shader, "shaders");
Horde3D.setResourcePath(Horde3D.ResourceTypes.Texture2D, "textures");
Horde3D.setResourcePath(Horde3D.ResourceTypes.TextureCube, "textures");
Horde3D.setResourcePath(Horde3D.ResourceTypes.Effect, "effects");
// Load pipeline configuration
if (!Horde3D.loadPipelineConfig("pipeline_Chicago.xml"))
{
Horde3DUtils.dumpMessages();
return(false);
}
// Set options
Horde3D.setOption(Horde3D.EngineOptions.LoadTextures, 1);
Horde3D.setOption(Horde3D.EngineOptions.TexCompression, 0);
Horde3D.setOption(Horde3D.EngineOptions.AnisotropyFactor, 8);
Horde3D.setOption(Horde3D.EngineOptions.ShadowMapSize, 2048);
Horde3D.setOption(Horde3D.EngineOptions.FastAnimation, 0);
// Add resources
// Font
_fontMatRes = Horde3D.addResource(Horde3D.ResourceTypes.Material, "font.material.xml", 0);
// Logo
_logoMatRes = Horde3D.addResource(Horde3D.ResourceTypes.Material, "logo.material.xml", 0);
// Shader for deferred shading
int lightMatRes = Horde3D.addResource(Horde3D.ResourceTypes.Material, "light.material.xml", 0);
// Environment
int envRes = Horde3D.addResource(Horde3D.ResourceTypes.SceneGraph, "scene.scene.xml", 0);
// Skybox
//int skyBoxRes = Horde3D.addResource(Horde3D.ResourceTypes.SceneGraph, "skybox.scene.xml", 0);
// Load resources
Horde3DUtils.loadResourcesFromDisk("content");
// Add scene nodes
// Add environment
Horde3D.addNodes(Horde3D.RootNode, envRes);
// Add skybox
//int sky = Horde3D.addNodes( Horde3D.RootNode, skyBoxRes );
//Horde3D.setNodeTransform(sky, 0, 0, 0, 0, 0, 0, 210, 50, 210);
// Add light source
int light = Horde3D.addLightNode(Horde3D.RootNode, "Light1", lightMatRes, "LIGHTING", "SHADOWMAP");
Horde3D.setNodeTransform(light, 0, 25, -25, -120, 0, 0, 1, 1, 1);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.Radius, 100);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.FOV, 90);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.ShadowMapCount, 3);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.ShadowSplitLambda, 0.95f);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.Col_R, 0.98f);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.Col_G, 0.6f);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.Col_B, 0.5f);
// Add light source
light = Horde3D.addLightNode(Horde3D.RootNode, "Light2", lightMatRes, "LIGHTING", "SHADOWMAP");
Horde3D.setNodeTransform(light, 0, 25, 30, -60, 0, 0, 1, 1, 1);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.Radius, 50);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.FOV, 90);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.ShadowMapCount, 3);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.ShadowSplitLambda, 0.95f);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.Col_R, 0.5f);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.Col_G, 0.6f);
Horde3D.setLightParam(light, Horde3D.LightNodeParams.Col_B, 0.98f);
_crowdSim = new CrowdSim();
_crowdSim.init();
_initialized = true;
return(true);
}
public void update(float fps)
{
// Parameters for three repulsion zones
float d1 = 0.25f, d2 = 2.0f, d3 = 4.5f;
float f1 = 3.0f, f2 = 1.0f, f3 = 0.1f;
for (int i = 0; i < _particles.Count; ++i)
{
Particle p = _particles[i];
// Reset force
p.fx = 0; p.fz = 0;
// Calculate distance to destination
float dist = (float)Math.Sqrt((p.dx - p.px) * (p.dx - p.px) + (p.dz - p.pz) * (p.dz - p.pz));
// If destination not reached walk to destination
if (dist > 3.0f)
{
// Calculate normalized attraction force to destination
float afx = (p.dx - p.px) / dist;
float afz = (p.dz - p.pz) / dist;
p.fx += afx * 0.035f; p.fz += afz * 0.035f;
// Repulsion forces from other particles
for (int j = 0; j < _particles.Count; ++j)
{
if (j == i)
{
continue;
}
Particle p2 = _particles[j];
float dist2 = (float)Math.Sqrt((p.px - p2.px) * (p.px - p2.px) + (p.pz - p2.pz) * (p.pz - p2.pz));
float strength = 0;
float rfx = (p.px - p2.px) / dist2;
float rfz = (p.pz - p2.pz) / dist2;
// Use three zones with different repulsion strengths
if (dist2 <= d3 && dist2 > d2)
{
float m = (f3 - 0) / (d2 - d3);
float t = 0 - m * d3;
strength = m * dist2 + t;
}
else if (dist2 <= d2 && dist2 > d1)
{
float m = (f2 - f3) / (d1 - d2);
float t = f3 - m * d2;
strength = m * dist2 + t;
}
else if (dist2 <= d1)
{
float m = (f1 - f2) / (0 - d1);
float t = f2 - m * d1;
strength = m * dist2 + t;
}
p.fx += rfx * strength; p.fz += rfz * strength;
}
}
else
{
// Choose new destination
chooseDestination(ref p);
}
// Make movement frame rate independence
p.fx *= (30 / fps);
p.fz *= (30 / fps);
float vel = (float)Math.Sqrt(p.fx * p.fx + p.fz * p.fz);
// Set new position
p.px += p.fx; p.pz += p.fz;
// Caluclate orientation
p.ox = (p.ox + p.fx) / 2;
p.oz = (p.oz + p.fz) / 2;
// Get rotation from orientation
float ry = 0;
if (p.oz != 0)
{
ry = (float)Math.Atan2(p.ox, p.oz);
}
ry *= 180 / 3.1415f; // Convert from radians to degrees
// Update character scene node position
Horde3D.setNodeTransform(p.node, p.px, 0.02f, p.pz, 0, ry, 0, 1, 1, 1);
// Update animation
p.animTime += vel * 35.0f;
Horde3D.setModelAnimParams(p.node, 0, p.animTime, 1.0f);
}
}
