Differential D10390 Diff 33840 source/blender/draw/engines/eevee/shaders/closure_eval_diffuse_lib.glsl

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source/blender/draw/engines/eevee/shaders/closure_eval_diffuse_lib.glsl

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				#pragma BLENDER_REQUIRE(lights_lib.glsl)
				#pragma BLENDER_REQUIRE(lightprobe_lib.glsl)
				#pragma BLENDER_REQUIRE(ambient_occlusion_lib.glsl)

				struct ClosureInputDiffuse {
				vec3 N; /** Shading normal. */
				vec3 albedo; /** Used for multibounce GTAO approximation. Not applied to final radiance. */
				};

				#define CLOSURE_INPUT_Diffuse_DEFAULT ClosureInputDiffuse(vec3(0.0), vec3(0.0))

				struct ClosureEvalDiffuse {
				vec3 probe_sampling_dir; /** Direction to sample probes from. */
				float ambient_occlusion; /** Final occlusion for distant lighting. */
				};

				/* Stubs. */
				#define ClosureOutputDiffuse ClosureOutput
				#define closure_Diffuse_planar_eval(cl_in, cl_eval, cl_common, data, cl_out)
				#define closure_Diffuse_cubemap_eval(cl_in, cl_eval, cl_common, data, cl_out)

				ClosureEvalDiffuse closure_Diffuse_eval_init(inout ClosureInputDiffuse cl_in,
				ClosureEvalCommon cl_common,
				out ClosureOutputDiffuse cl_out)
				{
				cl_in.N = safe_normalize(cl_in.N);
				cl_out.radiance = vec3(0.0);

				ClosureEvalDiffuse cl_eval;
				cl_eval.ambient_occlusion = diffuse_occlusion(
				cl_in.N, cl_common.bent_normal, cl_common.occlusion, cl_in.albedo);
				cl_eval.probe_sampling_dir = diffuse_dominant_dir(
				cl_in.N, cl_common.bent_normal, cl_common.occlusion);
				return cl_eval;
				}

				void closure_Diffuse_light_eval(ClosureInputDiffuse cl_in,
				ClosureEvalDiffuse cl_eval,
				ClosureEvalCommon cl_common,
				ClosureLightData light,
				inout ClosureOutputDiffuse cl_out)
				{
				float radiance = light_diffuse(light.data, cl_in.N, cl_common.V, light.L);
				/* TODO(fclem) We could try to shadow lights that are shadowless with the ambient_occlusion
				* factor here. */
				cl_out.radiance += light.data.l_color * (light.vis * light.contact_shadow * radiance);
				}

				void closure_Diffuse_grid_eval(ClosureInputDiffuse cl_in,
				ClosureEvalDiffuse cl_eval,
				ClosureEvalCommon cl_common,
				ClosureGridData grid,
				inout ClosureOutputDiffuse cl_out)
				{
				vec3 probe_radiance = probe_evaluate_grid(
				grid.data, cl_common.P, cl_eval.probe_sampling_dir, grid.local_pos);
				cl_out.radiance += grid.attenuation * probe_radiance;
				}

				void closure_Diffuse_indirect_end(ClosureInputDiffuse cl_in,
				ClosureEvalDiffuse cl_eval,
				ClosureEvalCommon cl_common,
				inout ClosureOutputDiffuse cl_out)
				{
				/* If not enough light has been accumulated from probes, use the world specular cubemap
				* to fill the remaining energy needed. */
				if (cl_common.diffuse_accum > 0.0) {
				vec3 probe_radiance = probe_evaluate_world_diff(cl_eval.probe_sampling_dir);
				cl_out.radiance += cl_common.diffuse_accum * probe_radiance;
				}
				/* Apply occlusion on radiance before the light loop. */
				cl_out.radiance *= cl_eval.ambient_occlusion;
				}

				void closure_Diffuse_eval_end(ClosureInputDiffuse cl_in,
				ClosureEvalDiffuse cl_eval,
				ClosureEvalCommon cl_common,
				inout ClosureOutputDiffuse cl_out)
				{
				#if defined(DEPTH_SHADER) \|\| defined(WORLD_BACKGROUND)
				/* This makes shader resources become unused and avoid issues with samplers. (see T59747) */
				cl_out.radiance = vec3(0.0);
				return;
				#endif
				}