Revert "EEVEE: Fix volumetric resolve in large scenes."

This reverts commit 34051fcc12f388375697dcfc6da53e9909058fe1.
Although for normal use this doesn't make a difference. But when working with
huge scenes and volumetrics + NVIDIA it made a work-around not possible anymore.

For the heist production we added a fix on the render-farm (enable GPU workarounds).
{rB34051fcc12f388375697dcfc6da53e9909058fe1} made another work-around not
accessible anymore and it and was requested to revert this change.

1 files changed, 0 insertions, 38 deletions

diff --git a/source/blender/draw/engines/eevee/shaders/volumetric_resolve_comp.glsl b/source/blender/draw/engines/eevee/shaders/volumetric_resolve_comp.glsl
deleted file mode 100644
index 2b0139ff923..00000000000
--- a/source/blender/draw/engines/eevee/shaders/volumetric_resolve_comp.glsl
+++ /dev/null
@@ -1,38 +0,0 @@
-
-#pragma BLENDER_REQUIRE(volumetric_lib.glsl)
-
-/* Based on Frosbite Unified Volumetric.
- * https://www.ea.com/frostbite/news/physically-based-unified-volumetric-rendering-in-frostbite */
-
-/* Step 4 : Apply final integration on top of the scene color. */
-
-uniform sampler2D inSceneDepth;
-
-layout(local_size_x = 1, local_size_y = 1) in;
-
-#ifdef TARGET_IMG_FLOAT
-layout(binding = 0, rgba32f) uniform image2D target_img;
-#else
-layout(binding = 0, rgba16f) uniform image2D target_img;
-#endif
-
-void main()
-{
-  ivec2 co = ivec2(gl_GlobalInvocationID.xy);
-  vec2 uvs = co / vec2(textureSize(inSceneDepth, 0));
-  float scene_depth = texture(inSceneDepth, uvs).r;
-
-  vec3 transmittance, scattering;
-  volumetric_resolve(uvs, scene_depth, transmittance, scattering);
-
-  /* Approximate volume alpha by using a monochromatic transmittance
-   * and adding it to the scene alpha. */
-  float alpha = dot(transmittance, vec3(1.0 / 3.0));
-
-  vec4 color0 = vec4(scattering, 1.0 - alpha);
-  vec4 color1 = vec4(transmittance, alpha);
-
-  vec4 color_in = imageLoad(target_img, co);
-  vec4 color_out = color0 + color1 * color_in;
-  imageStore(target_img, co, color_out);
-}