chg: fix pacing on --capture

TEST.bat

@@ -24,12 +24,12 @@ for %%x in (*.exe) do (
         echo [pass] reference image not found. Copying %%~nx.png ...
         copy "tests\out\%%~nx.png" "tests\ref\%%~nx.png"
     ) else (
-        call gm compare -metric MSE -maximum-error 0.005 "tests\ref\%%~nx.png" "tests\out\%%~nx.png" -file "tests\diff\%%~nx.png"
+        call gm compare -metric MSE -maximum-error 0.0065 "tests\ref\%%~nx.png" "tests\out\%%~nx.png" -file "tests\diff\%%~nx.png"
         if errorlevel 1 (
             echo [fail] %%~nx.exe! Check "tests\diff\%%~nx.png"
         ) else (
             echo [pass] %%~nx.exe
-            del "tests\diff\%%~nx.png"
+            @REM del "tests\diff\%%~nx.png"
         )
     )
 )

engine/joint/v4k.h

@@ -392388,6 +392388,8 @@ int fps_wait() {
 }
 static
 void window_vsync(float hz) {
+    static uint64_t capture_target; do_once capture_target = optioni("--capture", 0);
+    if( capture_target ) return;
     if( hz <= 0 ) return;
     do_once fps_locker(1);
     framerate = hz;
@@ -395715,7 +395717,7 @@ static void v4k_post_init(float refresh_rate) {
     glfwShowWindow(window);
     glfwGetFramebufferSize(window, &w, &h); //glfwGetWindowSize(window, &w, &h);
 
-    randset(time_ns());
+    randset(time_ns() * !optioni("--capture",0));
     boot_time = -time_ss(); // measure boot time, this is continued in window_stats()
 
     // clean any errno setup by cooking stage
@@ -395726,11 +395728,6 @@ static void v4k_post_init(float refresh_rate) {
 
     // preload brdf LUT early
     (void)brdf_lut();
-
-    static uint64_t capture_target; do_once capture_target = optioni("--capture", 0);
-    if (capture_target) {
-        randset(capture_target);
-    }
 }
 
 // ----------------------------------------------------------------------------

engine/split/v4k_main.c

@@ -40,7 +40,7 @@ static void v4k_post_init(float refresh_rate) {
     glfwShowWindow(window);
     glfwGetFramebufferSize(window, &w, &h); //glfwGetWindowSize(window, &w, &h);
 
-    randset(time_ns());
+    randset(time_ns() * !optioni("--capture",0));
     boot_time = -time_ss(); // measure boot time, this is continued in window_stats()
 
     // clean any errno setup by cooking stage
@@ -51,11 +51,6 @@ static void v4k_post_init(float refresh_rate) {
 
     // preload brdf LUT early
     (void)brdf_lut();
-
-    static uint64_t capture_target; do_once capture_target = optioni("--capture", 0);
-    if (capture_target) {
-        randset(capture_target);
-    }
 }
 
 // ----------------------------------------------------------------------------

engine/split/v4k_window.c

@@ -65,6 +65,8 @@ int fps_wait() {
 }
 static
 void window_vsync(float hz) {
+    static uint64_t capture_target; do_once capture_target = optioni("--capture", 0);
+    if( capture_target ) return;
     if( hz <= 0 ) return;
     do_once fps_locker(1);
     framerate = hz;

engine/v4k.c

@@ -26928,6 +26928,8 @@ int fps_wait() {
 }
 static
 void window_vsync(float hz) {
+    static uint64_t capture_target; do_once capture_target = optioni("--capture", 0);
+    if( capture_target ) return;
     if( hz <= 0 ) return;
     do_once fps_locker(1);
     framerate = hz;
@@ -30255,7 +30257,7 @@ static void v4k_post_init(float refresh_rate) {
     glfwShowWindow(window);
     glfwGetFramebufferSize(window, &w, &h); //glfwGetWindowSize(window, &w, &h);
 
-    randset(time_ns());
+    randset(time_ns() * !optioni("--capture",0));
     boot_time = -time_ss(); // measure boot time, this is continued in window_stats()
 
     // clean any errno setup by cooking stage
@@ -30266,11 +30268,6 @@ static void v4k_post_init(float refresh_rate) {
 
     // preload brdf LUT early
     (void)brdf_lut();
-
-    static uint64_t capture_target; do_once capture_target = optioni("--capture", 0);
-    if (capture_target) {
-        randset(capture_target);
-    }
 }
 
 // ----------------------------------------------------------------------------