Creates VAO and bind it to specified VBOs.
The whole process of binding is also the process of rendering.
protected override void DoInitialize() { // init shader program. ShaderProgram program = this.shaderCodes.CreateProgram(); VertexBuffer positionBuffer = null; IBufferable model = this.DataSource; VertexBuffer[] vertexAttributeBuffers; { var list = new List <VertexBuffer>(); foreach (AttributeMap.NamePair item in this.attributeMap) { VertexBuffer buffer = model.GetVertexAttributeBuffer( item.NameInIBufferable, item.VarNameInShader); if (buffer == null) { throw new Exception(string.Format("[{0}] returns null buffer pointer!", model)); } if (item.NameInIBufferable == this.PositionNameInIBufferable) { positionBuffer = buffer.Clone() as VertexBuffer; positionBuffer.VarNameInVertexShader = "in_Position";// in_Postion same with in the PickingShader.vert shader break; } list.Add(buffer); } vertexAttributeBuffers = list.ToArray(); } // 由于picking.vert/frag只支持vec3的position buffer,所以有此硬性规定。 if (positionBuffer == null || positionBuffer.Config != VBOConfig.Vec3) { throw new Exception(string.Format("Position buffer must use a type composed of 3 float as PropertyBuffer<T>'s T!")); } // init index buffer. IndexBuffer indexBuffer = model.GetIndexBuffer(); // RULE: Renderer takes uint.MaxValue, ushort.MaxValue or byte.MaxValue as PrimitiveRestartIndex. So take care this rule when designing a model's index buffer. var ptr = indexBuffer as OneIndexBuffer; if (ptr != null) { GLState glState = new PrimitiveRestartState(ptr.ElementType); this.stateList.Add(glState); } // init VAO. var vertexArrayObject = new VertexArrayObject(indexBuffer, positionBuffer); vertexArrayObject.Initialize(program); // sets fields. this.Program = program; this.vertexAttributeBuffers = new VertexBuffer[] { positionBuffer }; this.indexBuffer = indexBuffer; this.vertexArrayObject = vertexArrayObject; }
/// <summary> /// /// </summary> protected override void DoInitialize() { // init shader program. ShaderProgram program = this.shaderCodes.CreateProgram(); // init property buffer objects. VertexBuffer positionBuffer = null; IBufferable model = this.DataSource; VertexBuffer[] vertexAttributeBuffers; { var list = new List <VertexBuffer>(); foreach (AttributeMap.NamePair item in this.attributeMap) { VertexBuffer buffer = model.GetVertexAttributeBuffer( item.NameInIBufferable, item.VarNameInShader); if (buffer == null) { throw new Exception(string.Format("[{0}] returns null buffer pointer!", model)); } if (item.NameInIBufferable == positionNameInIBufferable) { if (positionBuffer != null) { throw new Exception(string.Format("Duplicate position buffer is not allowed!")); } positionBuffer = buffer.Clone() as VertexBuffer; positionBuffer.VarNameInVertexShader = "in_Position";// in_Postion same with in the PickingShader.vert shader } list.Add(buffer); } vertexAttributeBuffers = list.ToArray(); } // init index buffer OneIndexBuffer indexBuffer; { var mode = DrawMode.Points;//any mode is OK as we'll update it later in other place. indexBuffer = Buffer.Create(IndexBufferElementType.UInt, positionBuffer.ByteLength / (positionBuffer.Config.GetDataSize() * positionBuffer.Config.GetDataTypeByteLength()), mode, BufferUsage.StaticDraw); this.maxElementCount = indexBuffer.ElementCount; indexBuffer.ElementCount = 0;// 高亮0个图元 // RULE: Renderer takes uint.MaxValue, ushort.MaxValue or byte.MaxValue as PrimitiveRestartIndex. So take care this rule when designing a model's index buffer. GLState glState = new PrimitiveRestartState(indexBuffer.ElementType); this.stateList.Add(glState); } // init VAO. var vertexArrayObject = new VertexArrayObject(indexBuffer, vertexAttributeBuffers); vertexArrayObject.Initialize(program); // sets fields. this.Program = program; this.vertexAttributeBuffers = vertexAttributeBuffers; this.indexBuffer = indexBuffer; this.vertexArrayObject = vertexArrayObject; this.positionBuffer = positionBuffer; }
/// <summary> /// /// </summary> protected override void DoInitialize() { // init shader program. ShaderProgram program = this.shaderCodes.CreateProgram(); // init property buffer objects. VertexBuffer positionBuffer = null; IBufferable model = this.DataSource; VertexBuffer[] vertexAttributeBuffers; { var list = new List<VertexBuffer>(); foreach (AttributeMap.NamePair item in this.attributeMap) { VertexBuffer buffer = model.GetVertexAttributeBuffer( item.NameInIBufferable, item.VarNameInShader); if (buffer == null) { throw new Exception(string.Format("[{0}] returns null buffer pointer!", model)); } if (item.NameInIBufferable == positionNameInIBufferable) { if (positionBuffer != null) { throw new Exception(string.Format("Duplicate position buffer is not allowed!")); } positionBuffer = buffer.Clone() as VertexBuffer; positionBuffer.VarNameInVertexShader = "in_Position";// in_Postion same with in the PickingShader.vert shader } list.Add(buffer); } vertexAttributeBuffers = list.ToArray(); } // init index buffer OneIndexBuffer indexBuffer; { var mode = DrawMode.Points;//any mode is OK as we'll update it later in other place. indexBuffer = Buffer.Create(IndexBufferElementType.UInt, positionBuffer.ByteLength / (positionBuffer.Config.GetDataSize() * positionBuffer.Config.GetDataTypeByteLength()), mode, BufferUsage.StaticDraw); this.maxElementCount = indexBuffer.ElementCount; indexBuffer.ElementCount = 0;// 高亮0个图元 // RULE: Renderer takes uint.MaxValue, ushort.MaxValue or byte.MaxValue as PrimitiveRestartIndex. So take care this rule when designing a model's index buffer. GLState glState = new PrimitiveRestartState(indexBuffer.ElementType); this.stateList.Add(glState); } // init VAO. var vertexArrayObject = new VertexArrayObject(indexBuffer, vertexAttributeBuffers); vertexArrayObject.Initialize(program); // sets fields. this.Program = program; this.vertexAttributeBuffers = vertexAttributeBuffers; this.indexBuffer = indexBuffer; this.vertexArrayObject = vertexArrayObject; this.positionBuffer = positionBuffer; }
protected override void DoInitialize() { // init shader program. ShaderProgram program = this.shaderCodes.CreateProgram(); VertexBuffer positionBuffer = null; IBufferable model = this.DataSource; VertexBuffer[] vertexAttributeBuffers; { var list = new List<VertexBuffer>(); foreach (AttributeMap.NamePair item in this.attributeMap) { VertexBuffer buffer = model.GetVertexAttributeBuffer( item.NameInIBufferable, item.VarNameInShader); if (buffer == null) { throw new Exception(string.Format("[{0}] returns null buffer pointer!", model)); } if (item.NameInIBufferable == this.PositionNameInIBufferable) { positionBuffer = buffer.Clone() as VertexBuffer; positionBuffer.VarNameInVertexShader = "in_Position";// in_Postion same with in the PickingShader.vert shader break; } list.Add(buffer); } vertexAttributeBuffers = list.ToArray(); } // 由于picking.vert/frag只支持vec3的position buffer,所以有此硬性规定。 if (positionBuffer == null || positionBuffer.Config != VBOConfig.Vec3) { throw new Exception(string.Format("Position buffer must use a type composed of 3 float as PropertyBuffer<T>'s T!")); } // init index buffer. IndexBuffer indexBuffer = model.GetIndexBuffer(); // RULE: Renderer takes uint.MaxValue, ushort.MaxValue or byte.MaxValue as PrimitiveRestartIndex. So take care this rule when designing a model's index buffer. var ptr = indexBuffer as OneIndexBuffer; if (ptr != null) { GLState glState = new PrimitiveRestartState(ptr.ElementType); this.stateList.Add(glState); } // init VAO. var vertexArrayObject = new VertexArrayObject(indexBuffer, positionBuffer); vertexArrayObject.Initialize(program); // sets fields. this.Program = program; this.vertexAttributeBuffers = new VertexBuffer[] { positionBuffer }; this.indexBuffer = indexBuffer; this.vertexArrayObject = vertexArrayObject; }
/// <summary> /// /// </summary> protected override void DoInitialize() { // init shader program. ShaderProgram program = this.shaderCodes.CreateProgram(); // init vertex attribute buffer objects. IBufferable model = this.DataSource; VertexBuffer[] vertexAttributeBuffers; { var list = new List <VertexBuffer>(); foreach (AttributeMap.NamePair item in this.attributeMap) { VertexBuffer buffer = model.GetVertexAttributeBuffer( item.NameInIBufferable, item.VarNameInShader); if (buffer == null) { throw new Exception(string.Format("[{0}] returns null buffer pointer!", model)); } list.Add(buffer); } vertexAttributeBuffers = list.ToArray(); } // init index buffer. IndexBuffer indexBuffer = model.GetIndexBuffer(); // RULE: Renderer takes uint.MaxValue, ushort.MaxValue or byte.MaxValue as PrimitiveRestartIndex. So take care this rule when designing a model's index buffer. var ptr = indexBuffer as OneIndexBuffer; if (ptr != null) { GLState glState = new PrimitiveRestartState(ptr.ElementType); this.stateList.Add(glState); } // init VAO. var vertexArrayObject = new VertexArrayObject(indexBuffer, vertexAttributeBuffers); vertexArrayObject.Initialize(program); // sets fields. this.Program = program; this.vertexAttributeBuffers = vertexAttributeBuffers; this.indexBuffer = indexBuffer; this.vertexArrayObject = vertexArrayObject; }
/// <summary> /// /// </summary> protected override void DoInitialize() { // init shader program. ShaderProgram program = this.shaderCodes.CreateProgram(); // init vertex attribute buffer objects. IBufferable model = this.DataSource; VertexBuffer[] vertexAttributeBuffers; { var list = new List<VertexBuffer>(); foreach (AttributeMap.NamePair item in this.attributeMap) { VertexBuffer buffer = model.GetVertexAttributeBuffer( item.NameInIBufferable, item.VarNameInShader); if (buffer == null) { throw new Exception(string.Format("[{0}] returns null buffer pointer!", model)); } list.Add(buffer); } vertexAttributeBuffers = list.ToArray(); } // init index buffer. IndexBuffer indexBuffer = model.GetIndexBuffer(); // RULE: Renderer takes uint.MaxValue, ushort.MaxValue or byte.MaxValue as PrimitiveRestartIndex. So take care this rule when designing a model's index buffer. var ptr = indexBuffer as OneIndexBuffer; if (ptr != null) { GLState glState = new PrimitiveRestartState(ptr.ElementType); this.stateList.Add(glState); } // init VAO. var vertexArrayObject = new VertexArrayObject(indexBuffer, vertexAttributeBuffers); vertexArrayObject.Initialize(program); // sets fields. this.Program = program; this.vertexAttributeBuffers = vertexAttributeBuffers; this.indexBuffer = indexBuffer; this.vertexArrayObject = vertexArrayObject; }
/// <summary> /// /// </summary> protected override void DoInitialize() { // init shader program. ShaderProgram program = this.renderProgramProvider.GetShaderProgram(); ShaderProgram pickProgram = this.pickProgramProvider.GetShaderProgram(); // init vertex attribute buffer objects. IBufferable model = this.DataSource; VertexBuffer positionBuffer = null; VertexShaderAttribute[] vertexAttributeBuffers; { var list = new List <VertexShaderAttribute>(); foreach (AttributeMap.NamePair item in this.attributeMap) { VertexBuffer buffer = model.GetVertexAttributeBuffer( item.NameInIBufferable, item.VarNameInShader); if (buffer == null) { throw new Exception(string.Format("[{0}] returns null buffer pointer!", model)); } list.Add(new VertexShaderAttribute(buffer, item.VarNameInShader)); if (item.VarNameInShader == this.PositionNameInVertexShader) { positionBuffer = buffer; } } vertexAttributeBuffers = list.ToArray(); } // 由于picking.vert/frag只支持vec3的position buffer,所以有此硬性规定。 if (positionBuffer == null || positionBuffer.Config != VBOConfig.Vec3) { throw new Exception(string.Format("Position buffer must use a type composed of 3 float as PropertyBuffer<T>'s T!")); } // init index buffer. IndexBuffer indexBuffer = model.GetIndexBuffer(); // RULE: Renderer takes uint.MaxValue, ushort.MaxValue or byte.MaxValue as PrimitiveRestartIndex. So take care this rule when designing a model's index buffer. var ptr = indexBuffer as OneIndexBuffer; if (ptr != null) { GLState glState = new PrimitiveRestartState(ptr.ElementType); this.stateList.Add(glState); this.picker = new OneIndexPicker(this); } else { this.picker = new ZeroIndexPicker(this); } // init VAO. var vertexArrayObject = new VertexArrayObject(indexBuffer, vertexAttributeBuffers); vertexArrayObject.Initialize(program); var pickingVAO = new VertexArrayObject(indexBuffer, new VertexShaderAttribute(positionBuffer, "in_Position")); pickingVAO.Initialize(pickProgram); // sets fields. this.RenderProgram = program; this.PickProgram = pickProgram; this.vertexShaderAttributes = vertexAttributeBuffers; this.positionBuffer = positionBuffer; this.indexBuffer = indexBuffer; this.vertexArrayObject = vertexArrayObject; this.pickVertexArrayObject = pickingVAO; }
/// <summary> /// /// </summary> protected override void DoInitialize() { // init shader program. ShaderProgram program = this.shaderCodes.CreateProgram(); // init property buffer objects. VertexAttributeBufferPtr positionBufferPtr = null; IBufferable model = this.Model; VertexAttributeBufferPtr[] vertexAttributeBufferPtrs; { var list = new List <VertexAttributeBufferPtr>(); foreach (var item in this.attributeMap) { VertexAttributeBufferPtr bufferPtr = model.GetVertexAttributeBufferPtr( item.NameInIBufferable, item.VarNameInShader); if (bufferPtr == null) { throw new Exception(string.Format("[{0}] returns null buffer pointer!", model)); } if (item.NameInIBufferable == positionNameInIBufferable) { positionBufferPtr = new VertexAttributeBufferPtr( "in_Position",// in_Postion same with in the PickingShader.vert shader bufferPtr.BufferId, bufferPtr.Config, bufferPtr.Length, bufferPtr.ByteLength); } list.Add(bufferPtr); } vertexAttributeBufferPtrs = list.ToArray(); } // init index buffer OneIndexBufferPtr indexBufferPtr; { using (var buffer = new OneIndexBuffer(IndexElementType.UInt, DrawMode.Points, // any mode is OK as we'll update it later in other place. BufferUsage.DynamicDraw)) { buffer.Create(positionBufferPtr.ByteLength / (positionBufferPtr.DataSize * positionBufferPtr.DataTypeByteLength)); indexBufferPtr = buffer.GetBufferPtr() as OneIndexBufferPtr; } this.maxElementCount = indexBufferPtr.ElementCount; indexBufferPtr.ElementCount = 0;// 高亮0个图元 // RULE: Renderer takes uint.MaxValue, ushort.MaxValue or byte.MaxValue as PrimitiveRestartIndex. So take care this rule when designing a model's index buffer. GLSwitch glSwitch = new PrimitiveRestartSwitch(indexBufferPtr); this.switchList.Add(glSwitch); } // init VAO. var vertexArrayObject = new VertexArrayObject(indexBufferPtr, vertexAttributeBufferPtrs); vertexArrayObject.Initialize(program); // sets fields. this.Program = program; this.vertexAttributeBufferPtrs = vertexAttributeBufferPtrs; this.indexBufferPtr = indexBufferPtr; this.vertexArrayObject = vertexArrayObject; this.positionBufferPtr = positionBufferPtr; }