//------------------------------------------------------------------------------------------
//------------------------------------------------------------------------------------------
private void RenderLight(ShaderGroup lightShader, LightComponent component, MeshItem lightVolume)
{
LightItem light = (LightItem) this._library.GetResource(component.LightHandle);
if(light == null)
return;
float intensity = (float) light.Properties["intensity"];
/*update sphere scale matrix*/
this._scaleMatrix.Elements[0] = intensity * 2;
this._scaleMatrix.Elements[5] = intensity * 2;
this._scaleMatrix.Elements[10] = intensity * 2;
this._scaleMatrix.Elements[15] = 1.0f;
this._vMatrix.MultiplyM2(component.Parent.World, this._mvMatrix);
this._mvMatrix.MultiplyM2(this._scaleMatrix, this._mvMatrix);
Vector3 pos = this._mvMatrix.TransformV(new Vector3(new float[] {0.0f, 0.0f, 0.0f}));
/*check view occlusion*/
this.UpdateCullInfo(this._mvMatrix);
/*test for view occlusion*/
if (this._occluder != null && !this._occluder.Test(this._cullInfo, null, lightVolume))
return;
/*bind shader, mesh and buffers*/
lightShader.ShaderBinder.BindLight(pos, light, this._mvMatrix, this._pMatrix);
this._context.DrawElements(WebGLE.Triangles, this._lightSphereVolume.Indexes.Length, WebGLE.UnsignedShortT, 0);
}
//------------------------------------------------------------------------------------------
//------------------------------------------------------------------------------------------
public void AddShaderGroup(ShaderGroup shaderGroup)
{
this._shaderGroups[shaderGroup.Name] = shaderGroup;
}
//------------------------------------------------------------------------------------------
//------------------------------------------------------------------------------------------
public void Initialize(float fov, float zNear, float zFar)
{
this.DisplayDebugInformation();
WebGLGraphics that = this;
/*render texture dimensions*/
this._renderTextureDim = this.SmallestPowerOfTwo(_canvas.Width);
this._renderViewport =
SystemCore.Environment.CreateFloat32ArrayFromArray(new float[] { _renderTextureDim, _renderTextureDim, });
this._shaderGroups = new Dictionary<string, ShaderGroup>();
/*rendering shaders*/
ShaderGroup phongShaderGroup = new ShaderGroup();
phongShaderGroup.Name = "phong";
phongShaderGroup.ShaderBinder = new PhongBinder(that.Library, that._context, phongShaderGroup);
SystemCore.ResourceManager.GetResource("/Data/Shader/phong_pass_geom.shader", null).ResourceChanged.Subscribe(
delegate(object sender, object args) {
Resource resource = (Resource) sender;
if (resource.Finished) {
phongShaderGroup.GeometryPassShader = (CompiledShader) resource.Data;
}
}, null);
SystemCore.ResourceManager.GetResource("/Data/Shader/phong_pass_prepost.shader", null).ResourceChanged.Subscribe(
delegate(object sender, object args) {
Resource resource = (Resource)sender;
if (resource.Finished) {
phongShaderGroup.PrePostProcessPassShader = (CompiledShader)resource.Data;
}
}, null);
SystemCore.ResourceManager.GetResource("/Data/Shader/phong_pass_light.shader", null).ResourceChanged.Subscribe(
delegate(object sender, object args) {
Resource resource = (Resource)sender;
if (resource.Finished) {
phongShaderGroup.LightPassShader = (CompiledShader)resource.Data;
}
}, null);
SystemCore.ResourceManager.GetResource("/Data/Shader/phong_pass_final.shader", null).ResourceChanged.Subscribe(
delegate(object sender, object args) {
Resource resource = (Resource)sender;
if (resource.Finished) {
phongShaderGroup.FinalPassShader = (CompiledShader)resource.Data;
}
}, null);
this.AddShaderGroup(phongShaderGroup);
this.ActiveShaderGroup = "phong";
/*core library - which contain things like light bounding meshes*/
Library.LoadLibrary("/Data/JSON/core.json").Finished.Subscribe(delegate(object sender, object args) {
Handle sphereHandle = new Handle();
sphereHandle.Collection = "core";
sphereHandle.Id = "point_light_sphere-lib";
that._lightSphereVolume = ((MeshItem)Library.GetResource(sphereHandle));
}, true);
/*enable webGL float texture extension*/
SystemCore.Logger.Log(this._context.GetExtension("OES_texture_float").ToString());
this.SetupFrameBuffers();
/*webgl render queues*/
this._opaqueMeshQueue = new List<List<Node>>();
this._transparentMeshQueue = new List<List<Node>>();
this._lightQueue = new Dictionary<int, List<Node>>();
/*camera*/
this._camera = new Node();
this._camera.AddComponent(new CameraComponent());
/*perspective*/
this._scaleMatrix = new Matrix4X4(null);
this._mvMatrix = new Matrix4X4(null);
this._vMatrix = new Matrix4X4(null);
this._nMatrix = new Matrix4X4(null);
this._pMatrix = Matrix4X4.MakePerspective(fov, 800.0f / 600.0f, zNear, zFar);
this._context.Viewport(0, 0, this._renderTextureDim, this._renderTextureDim);
this._context.EnableVertexAttribArray(0);
this._context.EnableVertexAttribArray(1);
this._context.EnableVertexAttribArray(2);
this._context.Enable(WebGLE.DepthTest);
this._context.Enable(WebGLE.CullFace);
this._context.BlendFunc(WebGLE.SrcAlpha, WebGLE.One);
/*occlusion*/
this._cullInfo = new CullInfo();
/*post process effects*/
this._effects = new List<IPostProcessEffect>();
/*active texture targets*/
this._activeTextureTarget = new List<int>();
this._activeTextureTarget[0] = WebGLE.Texture0;
this._activeTextureTarget[1] = WebGLE.Texture1;
this._activeTextureTarget[2] = WebGLE.Texture2;
/*I don't need any more for now*/
}
public PhongBinder(Library library, WebGL graphics, ShaderGroup parent)
{
if(parent == null)
throw new Exception("Parent cannot be null");
if (graphics == null)
throw new Exception("Graphics cannot be null");
if (library == null)
throw new Exception("Library cannot be null");
this._library = library;
this._graphics = graphics;
this._parent = parent;
this._vertexBuffer = this._graphics.CreateBuffer();
this._graphics.BindBuffer(WebGLE.ArrayBuffer, _vertexBuffer);
float[] vertices = SystemCore.Environment.CreateFloat32ArrayFromArray(new float[] {
1.0f, 1.0f, 0.0f,
-1.0f, 1.0f, 0.0f,
1.0f, -1.0f, 0.0f,
-1.0f, -1.0f, 0.0f
});
this._graphics.BufferData(WebGLE.ArrayBuffer, vertices, WebGLE.StaticDraw);
}