From 9412291660384186e34b1c787b1ea4448165d1d6 Mon Sep 17 00:00:00 2001 From: Alexander Rose <alexander.rose@weirdbyte.de> Date: Fri, 9 Nov 2018 22:27:55 -0800 Subject: [PATCH] use STREAM_READ buffer with getBufferSubData --- src/mol-gl/webgl/context.ts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/mol-gl/webgl/context.ts b/src/mol-gl/webgl/context.ts index 2f0a9f0a7..4d2e8f8c8 100644 --- a/src/mol-gl/webgl/context.ts +++ b/src/mol-gl/webgl/context.ts @@ -199,7 +199,7 @@ export function createContext(gl: GLRenderingContext): WebGLContext { const pbo = gl.createBuffer() readPixelsAsync = async (x: number, y: number, width: number, height: number, buffer: Uint8Array) => { gl.bindBuffer(gl.PIXEL_PACK_BUFFER, pbo) - gl.bufferData(gl.PIXEL_PACK_BUFFER, width * height * 4, gl.STATIC_COPY) + gl.bufferData(gl.PIXEL_PACK_BUFFER, width * height * 4, gl.STREAM_READ) gl.readPixels(x, y, width, height, gl.RGBA, gl.UNSIGNED_BYTE, 0) gl.bindBuffer(gl.PIXEL_PACK_BUFFER, null) // need to unbind/bind PBO before/after async awaiting the fence -- GitLab