internal int RunNodeTest(GraphData graph, string filePrefix, SetupMaterialDelegate setupMaterial = null, Color32?expectedColor = null, int expectedIncorrectPixels = 0, int errorThreshold = 0)
{
RenderTextureDescriptor descriptor = new RenderTextureDescriptor(defaultResolution, defaultResolution, GraphicsFormat.R8G8B8A8_SRGB, depthBufferBits: 32);
var target = RenderTexture.GetTemporary(descriptor);
// use a non-standard transform, so that view, object, etc. transforms are non trivial
RenderQuadPreview(graph, target, testPosition, testRotation, setupMaterial, Mode.DIFF, useSRP: true);
// default expected color is green (test shaders should be set up to return green on success)
int incorrectPixels = CountPixelsNotEqual(target, expectedColor ?? new Color32(0, 255, 0, 255), false, errorThreshold);
if (incorrectPixels != expectedIncorrectPixels)
{
// report images
SaveToPNG(target, $"test-results/NodeTests/{filePrefix}.diff.png");
RenderQuadPreview(graph, target, testPosition, testRotation, setupMaterial, Mode.EXPECTED, useSRP: true);
SaveToPNG(target, $"test-results/NodeTests/{filePrefix}.expected.png");
RenderQuadPreview(graph, target, testPosition, testRotation, setupMaterial, Mode.ACTUAL, useSRP: true);
SaveToPNG(target, $"test-results/NodeTests/{filePrefix}.png");
// record failure
wrongImageCount++;
int wrongPixels = Math.Abs(incorrectPixels - expectedIncorrectPixels);
if (wrongPixels > mostWrongPixels)
{
mostWrongPixels = wrongPixels;
mostWrongString = $"{filePrefix} incorrect pixels expected: {expectedIncorrectPixels} actual: {incorrectPixels}";
}
}
RenderTexture.ReleaseTemporary(target);
return(incorrectPixels);
}
internal void RenderQuadPreview(GraphData graph, RenderTexture target, Vector3 scenePosition, Quaternion sceneRotation, SetupMaterialDelegate setupMaterial = null, Mode mode = Mode.DIFF, bool useSRP = false)
{
var camXform = previewScene.camera.transform;
// setup 2D quad render
camXform.position = -Vector3.forward * 2 + scenePosition;
camXform.rotation = sceneRotation;
previewScene.camera.orthographicSize = 0.5f;
previewScene.camera.orthographic = true;
graph.ValidateGraph();
// build the shader
var shader = BuildShaderGraph(graph, "Test Shader");
var mat = new Material(shader)
{
hideFlags = HideFlags.HideAndDontSave
};
SetKeyword(mat, "_MODE_DIFF", (mode == Mode.DIFF));
SetKeyword(mat, "_MODE_EXPECTED", (mode == Mode.EXPECTED));
SetKeyword(mat, "_MODE_ACTUAL", (mode == Mode.ACTUAL));
if (setupMaterial != null)
{
setupMaterial(mat);
}
var quadMatrix = Matrix4x4.TRS(camXform.position + camXform.forward * 2, camXform.rotation, Vector3.one);
// render with it
RenderMeshWithMaterial(previewScene.camera, previewScene.quad, quadMatrix, mat, target, useSRP);
}
