public void Process(FunctionGraph graph, int width, int height, GLTextuer2D tex, GLTextuer2D tex2, GLTextuer2D tex3, GLTextuer2D tex4, GLTextuer2D output)
{
base.Process(width, height, tex, output);
if (Shader != null)
{
Shader.Use();
if (output != null)
{
output.Bind();
output.BindAsImage(0, false, true);
}
Shader.SetUniform("Input0", 1);
IGL.Primary.ActiveTexture((int)TextureUnit.Texture1);
if (tex != null)
{
tex.Bind();
}
Shader.SetUniform("Input1", 2);
IGL.Primary.ActiveTexture((int)TextureUnit.Texture2);
if (tex2 != null)
{
tex2.Bind();
}
Shader.SetUniform("Input2", 3);
IGL.Primary.ActiveTexture((int)TextureUnit.Texture3);
if (tex3 != null)
{
tex3.Bind();
}
Shader.SetUniform("Input3", 4);
IGL.Primary.ActiveTexture((int)TextureUnit.Texture4);
if (tex4 != null)
{
tex4.Bind();
}
graph.AssignUniforms();
IGL.Primary.DispatchCompute(width / 8, height / 8, 1);
GLTextuer2D.UnbindAsImage(0);
GLTextuer2D.Unbind();
}
}
public void Process(int width, int height, GLTextuer2D tex, GLTextuer2D source, GLTextuer2D output)
{
base.Process(width, height, tex, output);
if (Shader != null && PreShader != null)
{
GLTextuer2D temp = new GLTextuer2D(output.InternalFormat);
temp.Bind();
temp.SetData(IntPtr.Zero, PixelFormat.Rgba, width, height);
temp.Linear();
temp.Repeat();
GLTextuer2D.Unbind();
GLTextuer2D temp2 = new GLTextuer2D(output.InternalFormat);
temp2.Bind();
temp2.SetData(IntPtr.Zero, PixelFormat.Rgba, width, height);
temp2.Linear();
temp2.Repeat();
GLTextuer2D.Unbind();
GLTextuer2D temp3 = new GLTextuer2D(PixelInternalFormat.Rgba32f);
temp3.Bind();
temp3.SetData(IntPtr.Zero, PixelFormat.Rgba, width + 1, height + 1);
temp3.Nearest();
temp3.ClampToEdge();
GLTextuer2D.Unbind();
ResizeViewTo(tex, temp, tex.Width, tex.Height, width, height);
IGL.Primary.Clear((int)(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit));
if (source != null)
{
ResizeViewTo(source, temp2, source.Width, source.Height, width, height);
}
IGL.Primary.Clear((int)(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit));
tex = temp;
PreShader.Use();
output.Bind();
output.BindAsImage(0, true, true);
tex.Bind();
tex.BindAsImage(1, true, true);
temp2.Bind();
temp2.BindAsImage(2, true, true);
temp3.Bind();
temp3.BindAsImage(3, true, true);
PreShader.SetUniform("width", (float)width);
PreShader.SetUniform("height", (float)height);
PreShader.SetUniform("sourceOnly", SourceOnly);
PreShader.SetUniform("maxDistance", Distance);
//stage 1 convert temp input range
//into proper format
//for dt
PreShader.SetUniform("stage", (int)0);
IGL.Primary.DispatchCompute(width / 8, height / 8, 1);
Shader.Use();
output.Bind();
output.BindAsImage(0, true, true);
tex.Bind();
tex.BindAsImage(1, true, true);
temp2.Bind();
temp2.BindAsImage(2, true, true);
temp3.Bind();
temp3.BindAsImage(3, true, true);
Shader.SetUniform("width", (float)width);
Shader.SetUniform("height", (float)height);
Shader.SetUniform("sourceOnly", SourceOnly);
Shader.SetUniform("maxDistance", Distance);
//stage 2 run column transform
Shader.SetUniform("stage", (int)0);
IGL.Primary.DispatchCompute(width / 8, 1, 1);
//stage 3 run row transform
Shader.SetUniform("stage", (int)1);
IGL.Primary.DispatchCompute(height / 8, 1, 1);
PreShader.Use();
output.Bind();
output.BindAsImage(0, true, true);
tex.Bind();
tex.BindAsImage(1, true, true);
temp2.Bind();
temp2.BindAsImage(2, true, true);
temp3.Bind();
temp3.BindAsImage(3, true, true);
PreShader.SetUniform("width", (float)width);
PreShader.SetUniform("height", (float)height);
PreShader.SetUniform("sourceOnly", SourceOnly);
PreShader.SetUniform("maxDistance", Distance);
//stage 4 finalize with sqrt() etc
PreShader.SetUniform("stage", (int)1);
IGL.Primary.DispatchCompute(width / 8, height / 8, 1);
GLTextuer2D.UnbindAsImage(0);
GLTextuer2D.UnbindAsImage(1);
GLTextuer2D.UnbindAsImage(2);
GLTextuer2D.UnbindAsImage(3);
GLTextuer2D.Unbind();
temp.Release();
temp2.Release();
temp3.Release();
}
}