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Fix a GL error on OpenGL ES 3 when using multiple render targets.

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This commit is contained in:
Alex Szpakowski
2016-08-29 18:48:53 -03:00
parent 677a8d60b8
commit d572c70883
1 changed files with 8 additions and 6 deletions
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src/modules/graphics/opengl/Canvas.cpp
+8 -6
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@@ -501,13 +501,15 @@ void Canvas::startGrab()
gl.setFramebufferSRGB(false); gl.setFramebufferSRGB(false);
} }
if (attachedCanvases.size() == 0) if (attachedCanvases.size() > 0)
return; {
// Make sure the FBO is only using a single draw buffer.
// GLES3 only has glDrawBuffers, so we avoid using glDrawBuffer.
const GLenum buffers[] = {GL_COLOR_ATTACHMENT0};
glDrawBuffers(1, buffers);
// Make sure the FBO is only using a single draw buffer. attachedCanvases.clear();
glDrawBuffer(GL_COLOR_ATTACHMENT0); }
attachedCanvases.clear();
} }
void Canvas::stopGrab(bool switchingToOtherCanvas) void Canvas::stopGrab(bool switchingToOtherCanvas)