random float

tests/Std140BufferTests.cpp

@@ -64,6 +64,7 @@ void TestGlobalParamStylePacking()
 	AppendStd140Vec2(buffer, 1280.0f, 720.0f);		// output resolution
 	AppendStd140Float(buffer, 45296.0f);			// UTC time of day
 	AppendStd140Float(buffer, 36000.0f);			// UTC offset
+	AppendStd140Float(buffer, 0.75f);				// startup random
 	AppendStd140Float(buffer, 42.0f);				// frame count
 	AppendStd140Float(buffer, 0.5f);				// mix
 	AppendStd140Float(buffer, 1.0f);				// bypass
@@ -76,17 +77,18 @@ void TestGlobalParamStylePacking()
 	AppendStd140Int(buffer, 2);						// enum parameter
 	buffer.resize(AlignStd140(buffer.size(), 16), 0);
 
-	Expect(buffer.size() == 96, "global parameter style block is padded to a 16-byte boundary");
+	Expect(buffer.size() == 112, "global parameter style block is padded to a 16-byte boundary");
 	Expect(ReadFloat(buffer, 0) == 10.0f, "time is at the start of the block");
 	Expect(ReadFloat(buffer, 8) == 1920.0f, "first vec2 aligns after scalar padding");
 	Expect(ReadFloat(buffer, 16) == 1280.0f, "second vec2 follows first vec2");
 	Expect(ReadFloat(buffer, 24) == 45296.0f, "UTC time follows output resolution");
 	Expect(ReadFloat(buffer, 28) == 36000.0f, "UTC offset follows UTC time");
-	Expect(ReadInt(buffer, 44) == 3, "history length scalar remains tightly packed");
-	Expect(ReadFloat(buffer, 56) == 4.0f, "vec2 shader parameter aligns to 8 bytes");
-	Expect(ReadFloat(buffer, 64) == 0.1f, "color parameter aligns to 16 bytes");
-	Expect(ReadInt(buffer, 80) == 1, "boolean parameter follows vec4");
-	Expect(ReadInt(buffer, 84) == 2, "enum parameter follows boolean");
+	Expect(ReadFloat(buffer, 32) == 0.75f, "startup random follows UTC offset");
+	Expect(ReadInt(buffer, 48) == 3, "history length scalar remains tightly packed");
+	Expect(ReadFloat(buffer, 64) == 4.0f, "vec2 shader parameter aligns to 8 bytes");
+	Expect(ReadFloat(buffer, 80) == 0.1f, "color parameter aligns to 16 bytes");
+	Expect(ReadInt(buffer, 96) == 1, "boolean parameter follows vec4");
+	Expect(ReadInt(buffer, 100) == 2, "enum parameter follows boolean");
 }
 }