Render() public method

执行一次渲染的过程。

Execute rendering command.

public Render ( RenderEventArgs arg, ShaderProgram shaderProgram, IndexBuffer temporaryIndexBuffer = null ) : void
arg RenderEventArgs
shaderProgram ShaderProgram
temporaryIndexBuffer IndexBuffer render by a temporary index buffer
return void
VertexArrayObject Class Documentation
Example #1
0
        //private Stack<UniformArrayVariable> uniformArrayVariableStack = new Stack<UniformArrayVariable>();
        /// <summary>
        ///
        /// </summary>
        /// <param name="arg"></param>
        protected override void DoRender(RenderEventArgs arg)
        {
            ShaderProgram program = this.Program;

            if (program == null)
            {
                return;
            }

            // 绑定shader
            program.Bind();

            SetUniformValues(program);

            SwitchesOn();

            IndexBufferPtr indexBufferPtr = this.indexBufferPtr;

            if (this.vertexArrayObject == null)
            {
                PropertyBufferPtr[] propertyBufferPtrs = this.propertyBufferPtrs;
                if (indexBufferPtr != null && propertyBufferPtrs != null)
                {
                    var vertexArrayObject = new VertexArrayObject(
                        indexBufferPtr, propertyBufferPtrs);
                    vertexArrayObject.Create(arg, program);

                    this.vertexArrayObject = vertexArrayObject;
                }
            }
            {
                VertexArrayObject vertexArrayObject = this.vertexArrayObject;
                if (vertexArrayObject != null)
                {
                    if (vertexArrayObject.IndexBufferPtr != indexBufferPtr)
                    {
                        vertexArrayObject.Render(arg, program, indexBufferPtr);
                    }
                    else
                    {
                        vertexArrayObject.Render(arg, program);
                    }
                }
            }

            SwithesOff();

            ResetUniformValues(program);

            // 解绑shader
            program.Unbind();
        }
Example #2
0
        protected override void DoRender(RenderEventArgs arg)
        {
            ShaderProgram program = this.shaderProgram;

            if (program == null)
            {
                return;
            }

            // 绑定shader
            program.Bind();

            var updatedUniforms = (from item in this.uniformVariables where item.Updated select item).ToArray();

            foreach (var item in updatedUniforms)
            {
                item.SetUniform(program);
            }

            int count = this.switchList.Count;

            for (int i = 0; i < count; i++)
            {
                this.switchList[i].On();
            }

            IndexBufferPtr indexBufferPtr = this.indexBufferPtr;

            if (this.vertexArrayObject == null)
            {
                PropertyBufferPtr[] propertyBufferPtrs = this.propertyBufferPtrs;
                if (indexBufferPtr != null && propertyBufferPtrs != null)
                {
                    var vertexArrayObject = new VertexArrayObject(
                        indexBufferPtr, propertyBufferPtrs);
                    vertexArrayObject.Create(arg, program);

                    this.vertexArrayObject = vertexArrayObject;
                }
            }
            {
                VertexArrayObject vertexArrayObject = this.vertexArrayObject;
                if (vertexArrayObject != null)
                {
                    if (vertexArrayObject.IndexBufferPtr != indexBufferPtr)
                    {
                        vertexArrayObject.IndexBufferPtr = indexBufferPtr;
                    }
                    vertexArrayObject.Render(arg, program);
                }
            }

            for (int i = count - 1; i >= 0; i--)
            {
                this.switchList[i].Off();
            }

            foreach (var item in updatedUniforms)
            {
                item.ResetUniform(program);
            }

            // 解绑shader
            program.Unbind();
        }