如何在不使用几何着色器的情况下在 OpenGL ES 3.0 中为多个点光源实现阴影？

Question

I am trying to implement shadows for multiple point lights in my scene. I was going throughthis tutorial, but in this they have used a cubemap and geometry shader to store the depth values of fragments.

I am using emscripten and in their documentation they have said they support only OpenGL ES 3.0 and OpenGL ES 3.0 doesn't support geometry shaders, geometry shaders are supported from OpenGL ES 3.2. So is there any other way to implement shadows for multiple pointLights without using geometry shader.

Answer 1

As already documented in that page:

Normally we'd attach a single face of a cubemap texture to the framebuffer object and render the scene 6 times, each time switching the depth buffer target of the framebuffer to a different cubemap face.