protected override void DoInitialize()
{
{
var computeProgram = new ShaderProgram();
var shaderCode = new ShaderCode(File.ReadAllText(@"05ParticleSimulator\particleSimulator.comp"), ShaderType.ComputeShader);
var shader = shaderCode.CreateShader();
computeProgram.Create(shader);
shader.Delete();
this.computeProgram = computeProgram;
}
{
OpenGL.GenTextures(1, textureBufferPosition);
OpenGL.BindTexture(OpenGL.GL_TEXTURE_BUFFER, textureBufferPosition[0]);
OpenGL.GetDelegateFor <OpenGL.glTexBuffer>()(OpenGL.GL_TEXTURE_BUFFER,
OpenGL.GL_RGBA32F, this.positionBufferPtrId);
OpenGL.GenTextures(1, textureBufferVelocity);
OpenGL.BindTexture(OpenGL.GL_TEXTURE_BUFFER, textureBufferVelocity[0]);
OpenGL.GetDelegateFor <OpenGL.glTexBuffer>()(OpenGL.GL_TEXTURE_BUFFER,
OpenGL.GL_RGBA32F, this.velocityBufferPtrId);
}
{
OpenGL.GetDelegateFor <OpenGL.glGenBuffers>()(1, attractor_buffer);
OpenGL.BindBuffer(BufferTarget.UniformBuffer, attractor_buffer[0]);
OpenGL.GetDelegateFor <OpenGL.glBufferData>()(OpenGL.GL_UNIFORM_BUFFER,
64 * Marshal.SizeOf(typeof(vec4)), IntPtr.Zero, OpenGL.GL_DYNAMIC_COPY);
OpenGL.GetDelegateFor <OpenGL.glBindBufferBase>()(OpenGL.GL_UNIFORM_BUFFER,
0, attractor_buffer[0]);
}
}
protected override void DoInitialize()
{
{
// Initialize our compute program
var computeProgram = new ShaderProgram();
var shaderCode = new ShaderCode(File.ReadAllText(@"04SimpleCompute\compute.comp"), ShaderType.ComputeShader);
Shader shader = shaderCode.CreateShader();
computeProgram.Create(shader);
shader.Delete();
this.computeProgram = computeProgram;
}
{
// Initialize our resetProgram
var resetProgram = new ShaderProgram();
var shaderCode = new ShaderCode(File.ReadAllText(@"04SimpleCompute\computeReset.comp"), ShaderType.ComputeShader);
Shader shader = shaderCode.CreateShader();
resetProgram.Create(shader);
shader.Delete();
this.resetProgram = resetProgram;
}
{
// This is the texture that the compute program will write into
OpenGL.GenTextures(1, output_image);
OpenGL.BindTexture(OpenGL.GL_TEXTURE_2D, output_image[0]);
OpenGL.TexStorage2D(TexStorage2DTarget.Texture2D, 8, OpenGL.GL_RGBA32F, 256, 256);
OpenGL.BindTexture(OpenGL.GL_TEXTURE_2D, 0);
}
{
this.GroupX = 1;
this.GroupY = 1;
this.GroupZ = 1;
}
base.DoInitialize();
this.SetUniform("output_image", new samplerValue(
BindTextureTarget.Texture2D, this.output_image[0], OpenGL.GL_TEXTURE0));
}
protected override void DoInitialize()
{
{
var computeProgram = new ShaderProgram();
var shaderCode = new ShaderCode(File.ReadAllText(
@"06ImageProcessing\ImageProcessing.comp"), ShaderType.ComputeShader);
var shader = shaderCode.CreateShader();
computeProgram.Create(shader);
shader.Delete();
this.computeProgram = computeProgram;
}
{
Bitmap bitmap = new System.Drawing.Bitmap(this.textureFilename);
if (bitmap.Width != 512 || bitmap.Height != 512)
{
bitmap = (Bitmap)bitmap.GetThumbnailImage(512, 512, null, IntPtr.Zero);
}
OpenGL.GenTextures(1, this.input_image);
OpenGL.BindTexture(OpenGL.GL_TEXTURE_2D, this.input_image[0]);
// Lock the image bits (so that we can pass them to OGL).
BitmapData bitmapData = bitmap.LockBits(
new Rectangle(0, 0, bitmap.Width, bitmap.Height),
ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
//GL.ActiveTexture(GL.GL_TEXTURE0);
OpenGL.TexImage2D(OpenGL.GL_TEXTURE_2D, 0, (int)OpenGL.GL_RGBA32F,
bitmap.Width, bitmap.Height, 0, OpenGL.GL_BGRA, OpenGL.GL_UNSIGNED_BYTE,
bitmapData.Scan0);
// Unlock the image.
bitmap.UnlockBits(bitmapData);
/* We require 1 byte alignment when uploading texture data */
//GL.PixelStorei(GL.GL_UNPACK_ALIGNMENT, 1);
/* Clamping to edges is important to prevent artifacts when scaling */
OpenGL.TexParameteri(OpenGL.GL_TEXTURE_2D, OpenGL.GL_TEXTURE_WRAP_S, (int)OpenGL.GL_CLAMP_TO_EDGE);
OpenGL.TexParameteri(OpenGL.GL_TEXTURE_2D, OpenGL.GL_TEXTURE_WRAP_T, (int)OpenGL.GL_CLAMP_TO_EDGE);
/* Linear filtering usually looks best for text */
OpenGL.TexParameteri(OpenGL.GL_TEXTURE_2D, OpenGL.GL_TEXTURE_MIN_FILTER, (int)OpenGL.GL_LINEAR);
OpenGL.TexParameteri(OpenGL.GL_TEXTURE_2D, OpenGL.GL_TEXTURE_MAG_FILTER, (int)OpenGL.GL_LINEAR);
bitmap.Dispose();
}
{
//GL.ActiveTexture(GL.GL_TEXTURE0);
OpenGL.GenTextures(1, this.intermediate_image);
OpenGL.BindTexture(OpenGL.GL_TEXTURE_2D, this.intermediate_image[0]);
OpenGL.TexStorage2D(TexStorage2DTarget.Texture2D, 8, OpenGL.GL_RGBA32F, 512, 512);
}
{
// This is the texture that the compute program will write into
//GL.ActiveTexture(GL.GL_TEXTURE0);
OpenGL.GenTextures(1, this.output_image);
OpenGL.BindTexture(OpenGL.GL_TEXTURE_2D, this.output_image[0]);
OpenGL.TexStorage2D(TexStorage2DTarget.Texture2D, 8, OpenGL.GL_RGBA32F, 512, 512);
}
{
var bufferable = new ImageProcessingModel();
ShaderCode[] simpleShader = new ShaderCode[2];
simpleShader[0] = new ShaderCode(File.ReadAllText(@"06ImageProcessing\ImageProcessing.vert"), ShaderType.VertexShader);
simpleShader[1] = new ShaderCode(File.ReadAllText(@"06ImageProcessing\ImageProcessing.frag"), ShaderType.FragmentShader);
var propertyNameMap = new PropertyNameMap();
propertyNameMap.Add("vert", "position");
propertyNameMap.Add("uv", "uv");
var pickableRenderer = new PickableRenderer(
bufferable, simpleShader, propertyNameMap, "position");
pickableRenderer.Name = string.Format("Pickable: [ImageProcessingRenderer]");
pickableRenderer.Initialize();
pickableRenderer.SetUniform("output_image",
new samplerValue(
BindTextureTarget.Texture2D, this.output_image[0], OpenGL.GL_TEXTURE0));
this.renderer = pickableRenderer;
}
}
protected override void DoInitialize()
{
{
var computeProgram = new ShaderProgram();
var shaderCode = new ShaderCode(File.ReadAllText(@"05ParticleSimulator\particleSimulator.comp"), ShaderType.ComputeShader);
var shader = shaderCode.CreateShader();
computeProgram.Create(shader);
shader.Delete();
this.computeProgram = computeProgram;
}
{
//var bufferable = new ParticleSimulatorCompute();
OpenGL.GetDelegateFor <OpenGL.glGenVertexArrays>()(1, render_vao);
OpenGL.GetDelegateFor <OpenGL.glBindVertexArray>()(render_vao[0]);
// position
OpenGL.GetDelegateFor <OpenGL.glGenBuffers>()(1, position_buffer);
OpenGL.BindBuffer(BufferTarget.ArrayBuffer, position_buffer[0]);
var positions = new UnmanagedArray <vec4>(ParticleSimulatorCompute.particleCount);
unsafe
{
var array = (vec4 *)positions.Header.ToPointer();
for (int i = 0; i < ParticleSimulatorCompute.particleCount; i++)
{
array[i] = new vec4(
(float)(random.NextDouble() - 0.5) * 20,
(float)(random.NextDouble() - 0.5) * 20,
(float)(random.NextDouble() - 0.5) * 20,
(float)(random.NextDouble())
);
}
}
OpenGL.BufferData(BufferTarget.ArrayBuffer, positions, BufferUsage.DynamicCopy);
positions.Dispose();
OpenGL.GetDelegateFor <OpenGL.glVertexAttribPointer>()(0, 4, OpenGL.GL_FLOAT, false, 0, IntPtr.Zero);
OpenGL.GetDelegateFor <OpenGL.glEnableVertexAttribArray>()(0);
// velocity
OpenGL.GetDelegateFor <OpenGL.glGenBuffers>()(1, velocity_buffer);
OpenGL.BindBuffer(BufferTarget.ArrayBuffer, velocity_buffer[0]);
var velocities = new UnmanagedArray <vec4>(ParticleSimulatorCompute.particleCount);
unsafe
{
var array = (vec4 *)velocities.Header.ToPointer();
for (int i = 0; i < ParticleSimulatorCompute.particleCount; i++)
{
array[i] = new vec4(
(float)(random.NextDouble() - 0.5) * 0.2f,
(float)(random.NextDouble() - 0.5) * 0.2f,
(float)(random.NextDouble() - 0.5) * 0.2f,
0);
}
}
OpenGL.BufferData(BufferTarget.ArrayBuffer, velocities, BufferUsage.DynamicCopy);
velocities.Dispose();
//GL.GetDelegateFor<GL.glVertexAttribPointer>()(0, 4, GL.GL_FLOAT, false, 0, IntPtr.Zero);
//GL.GetDelegateFor<GL.glEnableVertexAttribArray>()(0);
//
OpenGL.GenTextures(1, textureBufferPosition);
OpenGL.BindTexture(OpenGL.GL_TEXTURE_BUFFER, textureBufferPosition[0]);
OpenGL.GetDelegateFor <OpenGL.glTexBuffer>()(OpenGL.GL_TEXTURE_BUFFER, OpenGL.GL_RGBA32F, position_buffer[0]);
OpenGL.GenTextures(1, textureBufferVelocity);
OpenGL.BindTexture(OpenGL.GL_TEXTURE_BUFFER, textureBufferVelocity[0]);
OpenGL.GetDelegateFor <OpenGL.glTexBuffer>()(OpenGL.GL_TEXTURE_BUFFER, OpenGL.GL_RGBA32F, velocity_buffer[0]);
OpenGL.GetDelegateFor <OpenGL.glGenBuffers>()(1, attractor_buffer);
OpenGL.BindBuffer(BufferTarget.UniformBuffer, attractor_buffer[0]);
OpenGL.GetDelegateFor <OpenGL.glBufferData>()(OpenGL.GL_UNIFORM_BUFFER, 64 * Marshal.SizeOf(typeof(vec4)), IntPtr.Zero, OpenGL.GL_DYNAMIC_COPY);
OpenGL.GetDelegateFor <OpenGL.glBindBufferBase>()(OpenGL.GL_UNIFORM_BUFFER, 0, attractor_buffer[0]);
}
{
var visualProgram = new ShaderProgram();
var shaderCodes = new ShaderCode[2];
shaderCodes[0] = new ShaderCode(File.ReadAllText(@"05ParticleSimulator\particleSimulator.vert"), ShaderType.VertexShader);
shaderCodes[1] = new ShaderCode(File.ReadAllText(@"05ParticleSimulator\particleSimulator.frag"), ShaderType.FragmentShader);
var shaders = (from item in shaderCodes select item.CreateShader()).ToArray();
visualProgram.Create(shaders);
foreach (var item in shaders)
{
item.Delete();
}
this.visualProgram = visualProgram;
}
}
protected override void DoInitialize()
{
{
var computeProgram = new ShaderProgram();
var shaderCode = new ShaderCode(File.ReadAllText(
@"06ImageProcessing\ImageProcessing.comp"), ShaderType.ComputeShader);
var shader = shaderCode.CreateShader();
computeProgram.Create(shader);
shader.Delete();
this.computeProgram = computeProgram;
}
{
Bitmap bitmap = new System.Drawing.Bitmap(this.textureFilename);
if (bitmap.Width != 512 || bitmap.Height != 512)
{
bitmap = (Bitmap)bitmap.GetThumbnailImage(512, 512, null, IntPtr.Zero);
}
OpenGL.GenTextures(1, this.input_image);
OpenGL.BindTexture(OpenGL.GL_TEXTURE_2D, this.input_image[0]);
// Lock the image bits (so that we can pass them to OGL).
BitmapData bitmapData = bitmap.LockBits(
new Rectangle(0, 0, bitmap.Width, bitmap.Height),
ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
//GL.ActiveTexture(GL.GL_TEXTURE0);
OpenGL.TexImage2D(OpenGL.GL_TEXTURE_2D, 0, (int)OpenGL.GL_RGBA32F,
bitmap.Width, bitmap.Height, 0, OpenGL.GL_BGRA, OpenGL.GL_UNSIGNED_BYTE,
bitmapData.Scan0);
// Unlock the image.
bitmap.UnlockBits(bitmapData);
/* We require 1 byte alignment when uploading texture data */
//GL.PixelStorei(GL.GL_UNPACK_ALIGNMENT, 1);
/* Clamping to edges is important to prevent artifacts when scaling */
OpenGL.TexParameteri(OpenGL.GL_TEXTURE_2D, OpenGL.GL_TEXTURE_WRAP_S, (int)OpenGL.GL_CLAMP_TO_EDGE);
OpenGL.TexParameteri(OpenGL.GL_TEXTURE_2D, OpenGL.GL_TEXTURE_WRAP_T, (int)OpenGL.GL_CLAMP_TO_EDGE);
/* Linear filtering usually looks best for text */
OpenGL.TexParameteri(OpenGL.GL_TEXTURE_2D, OpenGL.GL_TEXTURE_MIN_FILTER, (int)OpenGL.GL_LINEAR);
OpenGL.TexParameteri(OpenGL.GL_TEXTURE_2D, OpenGL.GL_TEXTURE_MAG_FILTER, (int)OpenGL.GL_LINEAR);
bitmap.Dispose();
}
{
//GL.ActiveTexture(GL.GL_TEXTURE0);
OpenGL.GenTextures(1, this.intermediate_image);
OpenGL.BindTexture(OpenGL.GL_TEXTURE_2D, this.intermediate_image[0]);
OpenGL.TexStorage2D(TexStorage2DTarget.Texture2D, 8, OpenGL.GL_RGBA32F, 512, 512);
}
{
// This is the texture that the compute program will write into
//GL.ActiveTexture(GL.GL_TEXTURE0);
OpenGL.GenTextures(1, this.output_image);
OpenGL.BindTexture(OpenGL.GL_TEXTURE_2D, this.output_image[0]);
OpenGL.TexStorage2D(TexStorage2DTarget.Texture2D, 8, OpenGL.GL_RGBA32F, 512, 512);
}
{
var bufferable = new ImageProcessingModel();
ShaderCode[] simpleShader = new ShaderCode[2];
simpleShader[0] = new ShaderCode(File.ReadAllText(@"06ImageProcessing\ImageProcessing.vert"), ShaderType.VertexShader);
simpleShader[1] = new ShaderCode(File.ReadAllText(@"06ImageProcessing\ImageProcessing.frag"), ShaderType.FragmentShader);
var propertyNameMap = new PropertyNameMap();
propertyNameMap.Add("vert", "position");
propertyNameMap.Add("uv", "uv");
var pickableRenderer = new PickableRenderer(
bufferable, simpleShader, propertyNameMap, "position");
pickableRenderer.Name = string.Format("Pickable: [ImageProcessingRenderer]");
pickableRenderer.Initialize();
pickableRenderer.SetUniform("output_image",
new samplerValue(
BindTextureTarget.Texture2D, this.output_image[0], OpenGL.GL_TEXTURE0));
this.renderer = pickableRenderer;
}
}