add whole buffer recreation

star-e · Sep 14, 2024 · e482312 · e482312
1 parent 78909fd
commit e482312
Showing 1 changed file with 9 additions and 3 deletions.
diff --git a/cocos/gfx/webgl2/webgl2-commands.ts b/cocos/gfx/webgl2/webgl2-commands.ts
@@ -1001,7 +1001,9 @@ export function WebGL2CmdFuncUpdateBuffer (
                 cache.glArrayBuffer = gpuBuffer.glBuffer;
             }
 
-            if (size === buff.byteLength) {
+            if ((gpuBuffer.memUsage & MemoryUsageBit.HOST) && offset === 0 && size === buff.byteLength) {
+                gl.bufferData(gpuBuffer.glTarget, buff, gl.DYNAMIC_DRAW);
+            } else if (size === buff.byteLength) {
                 gl.bufferSubData(gpuBuffer.glTarget, offset, buff);
             } else {
                 gl.bufferSubData(gpuBuffer.glTarget, offset, buff.slice(0, size));
@@ -1022,7 +1024,9 @@ export function WebGL2CmdFuncUpdateBuffer (
                 cache.glElementArrayBuffer = gpuBuffer.glBuffer;
             }
 
-            if (size === buff.byteLength) {
+            if ((gpuBuffer.memUsage & MemoryUsageBit.HOST) && offset === 0 && size === buff.byteLength) {
+                gl.bufferData(gpuBuffer.glTarget, buff, gl.DYNAMIC_DRAW);
+            } else if (size === buff.byteLength) {
                 gl.bufferSubData(gpuBuffer.glTarget, offset, buff);
             } else {
                 gl.bufferSubData(gpuBuffer.glTarget, offset, buff.slice(0, size));
@@ -1035,7 +1039,9 @@ export function WebGL2CmdFuncUpdateBuffer (
                 cache.glUniformBuffer = gpuBuffer.glBuffer;
             }
 
-            if (size === buff.byteLength) {
+            if ((gpuBuffer.memUsage & MemoryUsageBit.HOST) && offset === 0 && size === buff.byteLength) {
+                gl.bufferData(gpuBuffer.glTarget, buff, gl.DYNAMIC_DRAW);
+            } else if (size === buff.byteLength) {
                 gl.bufferSubData(gpuBuffer.glTarget, offset, buff);
             } else {
                 gl.bufferSubData(gpuBuffer.glTarget, offset, new Float32Array(buff, 0, size / 4));