Initial commit

desktop/graphics/shaders/shader.frag

@@ -0,0 +1,12 @@
+#version 450
+
+layout(set = 1, binding = 0) uniform sampler2D texSampler;
+
+layout(location = 0) in  vec4 fragColor;
+layout(location = 2) in  vec2 fragTexCoord;
+
+layout(location = 0) out vec4 outColor;
+
+void main() {
+    outColor = fragColor * texture(texSampler, fragTexCoord);
+}

desktop/graphics/shaders/shader.vert

@@ -0,0 +1,62 @@
+#version 450
+
+layout(set = 0, binding = 0) uniform Projection {
+    mat4 m;
+} projection;
+layout(set = 0, binding = 1) uniform View {
+    mat4 m;
+} view;
+
+layout(push_constant) uniform PushContants {
+    layout(offset = 0) mat3x4 model;
+} push;
+
+layout(set = 2, binding = 0) uniform Light {
+    vec4 color;
+    vec4 from;
+    float contrast;
+    float softness;
+} light;
+
+layout(location = 0) in  vec3 inPosition;
+layout(location = 1) in  vec4 inColor;
+layout(location = 2) in  vec3 inNormal;
+layout(location = 3) in  vec2 inTexCoord;
+
+layout(location = 0) out vec4 fragColor;
+layout(location = 2) out vec2 fragTexCoord;
+
+void main() {
+    mat4 model = mat4(push.model);
+    
+    gl_Position = projection.m * view.m * model * vec4(inPosition, 1);
+    
+    fragColor.a = inColor.a;
+    
+    float exposure = dot(light.from.xyz, (model * vec4(inNormal, 1)).xyz);
+    if (exposure < -light.softness) {
+        fragColor.rgb = inColor.rgb * (
+            (exposure + 1) * ((0.5 - light.contrast) / (1 - light.softness))
+        );
+    } else if (exposure < light.softness) {
+        // FIXME
+        fragColor.rgb =
+            inColor.rgb
+            * (
+                0.5 + exposure * light.contrast / light.softness
+            )
+            * (
+                (+exposure / light.contrast + 1) / 2 * light.color.rgb +
+                (-exposure / light.contrast + 1) / 2 * vec3(1, 1, 1)
+            );
+    } else {
+        fragColor.rgb =
+            inColor.rgb
+            * (
+                0.5 + light.contrast + (exposure - light.softness) * ((0.5 - light.contrast) / (1 - light.softness))
+            )
+            * light.color.rgb;
+    }
+    
+    fragTexCoord = inTexCoord;
+}