public static string ShaderFileToSourceCode(string fileName, ResourceFactory resourceFactory)
{
var dir = Path.GetDirectoryName(fileName);
var shaderCode = File.ReadAllText(fileName);
string GetIncludeCode(string includeName)
{
var includeFileName = Path.Combine(dir, includeName);
var includeCode = File.ReadAllText(includeFileName);
try
{
var conformalIncludeCode = GlslTools.MakeConformal(includeCode);
var fragmentShaderDesc = new ShaderDescription(ShaderStages.Fragment, Encoding.UTF8.GetBytes(conformalIncludeCode), "main");
using (resourceFactory.CreateShader(fragmentShaderDesc))
{
return(includeCode);
}
}
catch (VeldridException vex)
{
throw new ShaderIncludeException($"Error compiling include file '{includeName}'", vex);
}
}
var expandedShaderCode = Transformation.ExpandIncludes(shaderCode, GetIncludeCode);
return(GlslTools.MakeConformal(expandedShaderCode));
}
public ShaderViewModel()
{
var sourceCode = @"void main() {
vec2 uv = gl_FragCoord.xy / iResolution;
gl_FragColor = vec4(uv, abs(sin(iGlobalTime)), 1.0);
}" ;
sourceCode = GlslTools.MakeConformal(sourceCode);
var framebuffer = IoC.Resolve <GraphicsDevice>().SwapchainFramebuffer;
//ResolutionX =
shaderVisual = new ShaderVisual(framebuffer.Width, framebuffer.Height, sourceCode);
}
public ShaderVisual(uint width, uint height, string sourceCode)
{
graphicsDevice = IoC.Resolve <GraphicsDevice>();
renderSurface = new RenderSurface(graphicsDevice.ResourceFactory, width, height);
shaderQuad = new PrimitiveShaderQuad(null, sourceCode, renderSurface.FrameBuffer);
const string copyShaderSourceCode = @"in vec2 uv;
void main() {
vec4 color = texture(texInput, uv);
gl_FragColor = color;
}" ;
shaderQuadCopy = new PrimitiveShaderQuad(renderSurface.View, GlslTools.MakeConformal(copyShaderSourceCode), graphicsDevice.SwapchainFramebuffer);
Width = width;
Height = height;
SourceCode = sourceCode;
}