feat: add black-and-white shader

assets/addons/bw_shader/lua/autorun/client/cl_bw_shader.lua

@@ -0,0 +1,9 @@
+--[[
+    Copyright (C) 2024 Silverlan
+
+    This Source Code Form is subject to the terms of the Mozilla Public
+    License, v. 2.0. If a copy of the MPL was not distributed with this
+    file, You can obtain one at http://mozilla.org/MPL/2.0/.
+]]
+
+include("/shaders/bw/shader.lua")

assets/addons/bw_shader/lua/shaders/bw/shader.lua

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+--[[
+    Copyright (C) 2024 Silverlan
+
+    This Source Code Form is subject to the terms of the Mozilla Public
+    License, v. 2.0. If a copy of the MPL was not distributed with this
+    file, You can obtain one at http://mozilla.org/MPL/2.0/.
+]]
+
+local Shader = util.register_class("shader.BwShader", shader.BasePbr)
+
+Shader.FragmentShader = "programs/scene/bw"
+Shader.VertexShader = "programs/scene/textured"
+function Shader:InitializePipeline(pipelineInfo, pipelineIdx)
+	shader.BasePbr.InitializePipeline(self, pipelineInfo, pipelineIdx)
+end
+shader.register("bw", Shader)

assets/addons/bw_shader/scripts/localization/en/texts/bw_shader.txt

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+c_bw = "Black and White"

assets/addons/bw_shader/shaders/programs/scene/bw.frag

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+#version 440
+
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
+
+#include "/programs/scene/pbr/fs_core.glsl"
+
+void main()
+{
+	vec2 uv = get_uv_coordinates();
+	vec4 albedoColor = fetch_albedo_map(uv, get_instance_color());
+	fs_color = calc_pbr(albedoColor, uv, u_pushConstants.debugMode);
+	float luminance = calc_luminance(fs_color.rgb);
+	fs_color.rgb = vec3(luminance, luminance, luminance);
+	if(CSPEC_BLOOM_OUTPUT_ENABLED == 1)
+		extract_bright_color(fs_color, u_renderer.bloomThreshold);
+}