private static List <LightBase> GetSpotLights()
{
var list = new List <LightBase>();
double radian = 120.0 / 180.0 * Math.PI / 2.0;
{
var light = new CSharpGL.SpotLight(new vec3(3, 3, 3), new vec3(), (float)Math.Cos(radian), new Attenuation(1, 0, 0));
light.Diffuse = new vec3(1, 1, 1);
light.Specular = new vec3(1, 1, 1);
list.Add(light);
}
//{
// var light = new CSharpGL.SpotLight(new vec3(3, 3, 3), new vec3(), (float)Math.Cos(radian), new Attenuation(2, 0, 0));
// light.Diffuse = new vec3(0, 1, 0);
// light.Specular = new vec3(0, 1, 0);
// list.Add(light);
//}
//{
// var light = new CSharpGL.SpotLight(new vec3(3, 3, 3), new vec3(), (float)Math.Cos(radian), new Attenuation(2, 0, 0));
// light.Diffuse = new vec3(0, 0, 1);
// light.Specular = new vec3(0, 0, 1);
// list.Add(light);
//}
return(list);
}
private static mat4 GetProjectionMatrix(this SpotLight light)
{
var angle = Math.Acos(light.CutOff) * 2; // in radians
const float aspectRatio = 1.0f;
// TODO: how to get a precise projection?
mat4 projection = glm.perspective((float)angle, aspectRatio, 0.1f, 50);
return(projection);
}
private static mat4 GetViewMatrix(this SpotLight light)
{
vec3 up = new vec3(0, 1, 0);
//if(light.Direction.dot(up) < 0.01f)
{
//up =
}
mat4 view = glm.lookAt(light.Position, light.Target, up);
return(view);
}
private static void SetUniforms(this SpotLight light, ShaderProgram program)
{
program.SetUniform("light.position", light.Position);
program.SetUniform("light.diffuse", light.Diffuse);
program.SetUniform("light.specular", light.Specular);
program.SetUniform("light.constant", light.Attenuation.Constant);
program.SetUniform("light.linear", light.Attenuation.Linear);
program.SetUniform("light.quadratic", light.Attenuation.Exp);
program.SetUniform("light.direction", light.Position - light.Target);
program.SetUniform("light.cutOff", light.CutOff);
const int lightUpRoutine = 2;
program.SetUniform("lightUpRoutine", lightUpRoutine);
}
private void FormMain_Load(object sender, EventArgs e)
{
var position = new vec3(1, 0.6f, 1) * 14;
var center = new vec3(0, 0, 0);
var up = new vec3(0, 1, 0);
var camera = new Camera(position, center, up, CameraType.Perspective, this.winGLCanvas1.Width, this.winGLCanvas1.Height);
this.scene = new Scene(camera)
;
string folder = System.Windows.Forms.Application.StartupPath;
string objFilename = System.IO.Path.Combine(folder + @"\..\..\..\..\Infrastructure\CSharpGL.Models", "vnfHanoiTower.obj_");
var parser = new ObjVNFParser(false);
ObjVNFResult result = parser.Parse(objFilename);
if (result.Error != null)
{
MessageBox.Show(result.Error.ToString());
}
else
{
double radian = 120.0 / 180.0 * Math.PI / 2.0;
var light = new CSharpGL.SpotLight(new vec3(1, 1, 1), new vec3(), (float)Math.Cos(radian));
var model = new ObjVNF(result.Mesh);
this.node = SpotLightNode.Create(light, model, ObjVNF.strPosition, ObjVNF.strNormal, model.GetSize());
float max = node.ModelSize.max();
this.node.Scale *= 16.0f / max;
this.lightNode = LightPostionNode.Create();
lightNode.SetLight(light);
lightNode.WorldPosition = new vec3(1, 1, 1) * 4;
var groupNode = new GroupNode(node, lightNode);
this.scene.RootNode = groupNode;
(new FormProperyGrid(groupNode)).Show();
}
var list = new ActionList();
var transformAction = new TransformAction(scene);
list.Add(transformAction);
var renderAction = new RenderAction(scene);
list.Add(renderAction);
this.actionList = list;
var manipulater = new FirstPerspectiveManipulater();
manipulater.Bind(camera, this.winGLCanvas1);
}
private void FormMain_Load(object sender, EventArgs e)
{
var position = new vec3(1, 0.6f, 1) * 14;
var center = new vec3(0, 0, 0);
var up = new vec3(0, 1, 0);
var camera = new Camera(position, center, up, CameraType.Perspecitive, this.winGLCanvas1.Width, this.winGLCanvas1.Height);
this.scene = new Scene(camera, this.winGLCanvas1);
string objFilename = "nanosuit.obj_";
var parser = new ObjVNFParser(false);
ObjVNFResult result = parser.Parse(objFilename);
if (result.Error != null)
{
MessageBox.Show(result.Error.ToString());
}
else
{
var light = new CSharpGL.SpotLight(new vec3(1, 1, 1), new vec3(), 60);
var model = new ObjVNF(result.Mesh);
this.node = SpotLightNode.Create(light, model, ObjVNF.strPosition, ObjVNF.strNormal, model.GetSize());
float max = node.ModelSize.max();
this.node.Scale *= 16.0f / max;
this.lightNode = LightPostionNode.Create();
lightNode.SetLight(light);
lightNode.WorldPosition = new vec3(1, 1, 1) * 4;
var groupNode = new GroupNode(node, lightNode);
this.scene.RootElement = groupNode;
(new FormProperyGrid(groupNode)).Show();
}
var list = new ActionList();
var transformAction = new TransformAction(scene);
list.Add(transformAction);
var renderAction = new RenderAction(scene);
list.Add(renderAction);
this.actionList = list;
var manipulater = new FirstPerspectiveManipulater();
manipulater.Bind(camera, this.winGLCanvas1);
}
/// <summary>
///
/// </summary>
/// <param name="model"></param>
/// <param name="position"></param>
/// <param name="normal"></param>
/// <param name="size"></param>
/// <returns></returns>
public static SpotLightNode Create(CSharpGL.SpotLight light, IBufferSource model, string position, string normal, vec3 size)
{
var vs = new VertexShader(spotLightVert);
var fs = new FragmentShader(spotLightFrag);
var provider = new ShaderArray(vs, fs);
var map = new AttributeMap();
map.Add(inPosition, position);
map.Add(inNormal, normal);
var builder = new RenderMethodBuilder(provider, map);
var node = new SpotLightNode(model, position, builder);
node.light = light;
node.ModelSize = size;
node.Children.Add(new LegacyBoundingBoxNode(size));
node.Initialize();
return node;
}
public void SetLight(CSharpGL.SpotLight light)
{
this.light = light;
}
private void FormMain_Load(object sender, EventArgs e)
{
var rootElement = GetRootElement();
//var teapot = ShadowMappingRenderer.Create();
//var rootElement = teapot;
var position = new vec3(5, 3, 5) * 3;
var center = new vec3(0, 0, 0);
var up = new vec3(0, 1, 0);
var camera = new Camera(position, center, up, CameraType.Perspecitive, this.winGLCanvas1.Width, this.winGLCanvas1.Height);
this.scene = new Scene(camera)
{
RootNode = rootElement,
ClearColor = Color.SkyBlue.ToVec4(),
};
{
// add lights.
var list = new List <LightBase>();
double radian = 120.0 / 180.0 * Math.PI;
{
var light = new CSharpGL.SpotLight(new vec3(3, 3, 3), new vec3(), (float)Math.Cos(radian), new Attenuation(2, 0, 0));
light.Diffuse = new vec3(1, 0, 0);
light.Specular = new vec3(1, 0, 0);
list.Add(light);
}
{
var light = new CSharpGL.SpotLight(new vec3(3, 3, 3), new vec3(), (float)Math.Cos(radian), new Attenuation(2, 0, 0));
light.Diffuse = new vec3(0, 1, 0);
light.Specular = new vec3(0, 1, 0);
list.Add(light);
}
{
var light = new CSharpGL.SpotLight(new vec3(3, 3, 3), new vec3(), (float)Math.Cos(radian), new Attenuation(2, 0, 0));
light.Diffuse = new vec3(0, 0, 1);
light.Specular = new vec3(0, 0, 1);
list.Add(light);
}
for (int i = 0; i < list.Count; i++)
{
var light = list[i];
var node = LightPositionNode.Create(light, i * 360.0f / list.Count);
this.scene.Lights.Add(light);
this.scene.RootNode.Children.Add(node);
}
}
Match(this.trvScene, scene.RootNode);
this.trvScene.ExpandAll();
var tansformAction = new TransformAction(scene);
this.shadowMappingAction = new ShadowMappingAction(scene);
var renderAction = new RenderAction(scene);
var actionList = new ActionList();
actionList.Add(tansformAction); actionList.Add(shadowMappingAction); actionList.Add(renderAction);
this.actionList = actionList;
(new FormProperyGrid(shadowMappingAction)).Show();
var manipulater = new FirstPerspectiveManipulater();
manipulater.Bind(camera, this.winGLCanvas1);
}
