Workbench Simplification Refactor

This patch is (almost) a complete rewrite of workbench engine.
The features remain unchanged but the code quality is greatly improved.
Hair shading is brighter but also more correct.

This also introduce the concept of `DRWShaderLibrary` to make a simple
include system inside the GLSL files.

Differential Revision: https://developer.blender.org/D7060

1 files changed, 0 insertions, 36 deletions

diff --git a/source/blender/draw/engines/workbench/shaders/workbench_forward_composite_frag.glsl b/source/blender/draw/engines/workbench/shaders/workbench_forward_composite_frag.glsl
deleted file mode 100644
index 0a4d64b37ad..00000000000
--- a/source/blender/draw/engines/workbench/shaders/workbench_forward_composite_frag.glsl
+++ /dev/null
@@ -1,36 +0,0 @@
-out vec4 fragColor;
-
-uniform usampler2D objectId;
-uniform sampler2D transparentAccum;
-uniform sampler2D transparentRevealage;
-uniform vec2 invertedViewportSize;
-
-#ifndef ALPHA_COMPOSITE
-layout(std140) uniform world_block
-{
-  WorldData world_data;
-};
-#endif
-
-/* TODO: Bypass the whole shader if there is no xray pass and no outline pass. */
-void main()
-{
-  ivec2 texel = ivec2(gl_FragCoord.xy);
-  vec2 uv_viewport = gl_FragCoord.xy * invertedViewportSize;
-
-  /* Listing 4 */
-  vec4 trans_accum = texelFetch(transparentAccum, texel, 0);
-  float trans_revealage = trans_accum.a;
-  trans_accum.a = texelFetch(transparentRevealage, texel, 0).r;
-
-  vec3 trans_color = trans_accum.rgb / clamp(trans_accum.a, 1e-4, 5e4);
-
-  fragColor.a = 1.0 - trans_revealage;
-  fragColor.rgb = trans_color * fragColor.a;
-
-#ifdef V3D_SHADING_OBJECT_OUTLINE
-  uint object_id = texelFetch(objectId, texel, 0).r;
-  float outline = calculate_object_outline(objectId, texel, object_id);
-  fragColor = mix(vec4(world_data.object_outline_color.rgb, 1.0), fragColor, outline);
-#endif
-}