initial commit, 4.5 stable

servers/rendering/renderer_rd/shaders/effects/specular_merge.glsl

@@ -0,0 +1,80 @@
+#[vertex]
+
+#version 450
+
+#VERSION_DEFINES
+
+#if defined(USE_MULTIVIEW)
+#extension GL_EXT_multiview : enable
+#define ViewIndex gl_ViewIndex
+#endif // USE_MULTIVIEW
+
+#ifdef USE_MULTIVIEW
+layout(location = 0) out vec3 uv_interp;
+#else // USE_MULTIVIEW
+layout(location = 0) out vec2 uv_interp;
+#endif //USE_MULTIVIEW
+
+void main() {
+	vec2 base_arr[3] = vec2[](vec2(-1.0, -1.0), vec2(-1.0, 3.0), vec2(3.0, -1.0));
+	gl_Position = vec4(base_arr[gl_VertexIndex], 0.0, 1.0);
+	uv_interp.xy = clamp(gl_Position.xy, vec2(0.0, 0.0), vec2(1.0, 1.0)) * 2.0; // saturate(x) * 2.0
+#ifdef USE_MULTIVIEW
+	uv_interp.z = ViewIndex;
+#endif
+}
+
+#[fragment]
+
+#version 450
+
+#VERSION_DEFINES
+
+#ifdef USE_MULTIVIEW
+layout(location = 0) in vec3 uv_interp;
+#else // USE_MULTIVIEW
+layout(location = 0) in vec2 uv_interp;
+#endif //USE_MULTIVIEW
+
+#ifdef USE_MULTIVIEW
+layout(set = 0, binding = 0) uniform sampler2DArray specular;
+#else // USE_MULTIVIEW
+layout(set = 0, binding = 0) uniform sampler2D specular;
+#endif //USE_MULTIVIEW
+
+#ifdef MODE_SSR
+
+#ifdef USE_MULTIVIEW
+layout(set = 1, binding = 0) uniform sampler2DArray ssr;
+#else // USE_MULTIVIEW
+layout(set = 1, binding = 0) uniform sampler2D ssr;
+#endif //USE_MULTIVIEW
+
+#endif
+
+#ifdef MODE_MERGE
+
+#ifdef USE_MULTIVIEW
+layout(set = 2, binding = 0) uniform sampler2DArray diffuse;
+#else // USE_MULTIVIEW
+layout(set = 2, binding = 0) uniform sampler2D diffuse;
+#endif //USE_MULTIVIEW
+
+#endif
+
+layout(location = 0) out vec4 frag_color;
+
+void main() {
+	frag_color.rgb = texture(specular, uv_interp).rgb;
+	frag_color.a = 0.0;
+#ifdef MODE_SSR
+
+	vec4 ssr_color = texture(ssr, uv_interp);
+	frag_color.rgb = mix(frag_color.rgb, ssr_color.rgb, ssr_color.a);
+#endif
+
+#ifdef MODE_MERGE
+	frag_color += texture(diffuse, uv_interp);
+#endif
+	//added using additive blend
+}