65 lines
1.8 KiB
GLSL
65 lines
1.8 KiB
GLSL
#version 450
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/* Copyright (c) 2024-2025, Sascha Willems
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 the "License";
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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layout (input_attachment_index = 0, binding = 0) uniform subpassInput positionDepthAttachment;
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layout (input_attachment_index = 1, binding = 1) uniform subpassInput normalAttachment;
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layout (input_attachment_index = 2, binding = 2) uniform subpassInput albedoAttachment;
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layout (location = 0) in vec2 inUV;
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layout (location = 0) out vec4 outColor;
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struct Light {
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vec4 position;
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vec3 color;
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float radius;
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};
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layout(std140, binding = 3) readonly buffer LightsBuffer
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{
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Light lights[ ];
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};
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void main()
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{
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// Read G-Buffer values from previous sub pass
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vec3 fragPos = subpassLoad(positionDepthAttachment).rgb;
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vec3 normal = subpassLoad(normalAttachment).rgb;
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vec4 albedo = subpassLoad(albedoAttachment);
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#define ambient 0.005
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// Ambient part
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vec3 fragcolor = albedo.rgb * ambient;
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for(int i = 0; i < lights.length(); ++i)
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{
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vec3 L = lights[i].position.xyz - fragPos;
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float dist = length(L);
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float attenuation = lights[i].radius / (pow(dist, 8.0) + 1.0);
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float NdotL = max(0.0, dot(normalize(normal), normalize(L)));
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vec3 diffuse = lights[i].color * albedo.rgb * NdotL * attenuation;
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fragcolor += diffuse;
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}
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outColor = vec4(fragcolor, 1.0);
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} |