Differential D13910 Diff 47467 source/blender/draw/engines/workbench/shaders/infos/workbench_volume_info.hh

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source/blender/draw/engines/workbench/shaders/infos/workbench_volume_info.hh

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				#include "gpu_shader_create_info.hh"

				/* -------------------------------------------------------------------- */
				/** \name Volume shader base
				* \{ */

				GPU_SHADER_CREATE_INFO(workbench_volume)
				.vertex_in(0, Type::VEC3, "pos")
				.fragment_out(0, Type::VEC4, "fragColor")
				.sampler(0, ImageType::DEPTH_2D, "depthBuffer")
				.sampler(1, ImageType::FLOAT_3D, "densityTexture")
				.push_constant(28, Type::INT, "samplesLen")
				.push_constant(29, Type::FLOAT, "noiseOfs")
				.push_constant(30, Type::FLOAT, "stepLength")
				.push_constant(31, Type::FLOAT, "densityScale")
				.vertex_source("workbench_volume_vert.glsl")
				.fragment_source("workbench_volume_frag.glsl")
				.additional_info("draw_object_infos");

				/** \} */

				/* -------------------------------------------------------------------- */
				/** \name Smoke variation
				* \{ */

				GPU_SHADER_CREATE_INFO(workbench_volume_smoke)
				.define("VOLUME_SMOKE")
				.sampler(2, ImageType::FLOAT_3D, "flameTexture")
				.sampler(3, ImageType::FLOAT_1D, "flameColorTexture")
				.additional_info("draw_mesh", "draw_resource_id_varying");

				GPU_SHADER_CREATE_INFO(workbench_volume_object)
				.define("VOLUME_OBJECT")
				.push_constant(0, Type::MAT4, "volumeTextureToObject")
				/* FIXME(fclem): This overflow the push_constant limit. */
				.push_constant(16, Type::MAT4, "volumeObjectToTexture")
				.additional_info("draw_volume", "draw_resource_id_varying");

				/** \} */

				/* -------------------------------------------------------------------- */
				/** \name Color Band variation
				* \{ */

				GPU_SHADER_CREATE_INFO(workbench_volume_coba)
				.define("USE_COBA")
				.sampler(4, ImageType::UINT_3D, "flagTexture")
				.sampler(5, ImageType::FLOAT_1D, "transferTexture")
				.push_constant(18, Type::BOOL, "showPhi")
				.push_constant(19, Type::BOOL, "showFlags")
				.push_constant(20, Type::BOOL, "showPressure")
				.push_constant(21, Type::FLOAT, "gridScale");

				GPU_SHADER_CREATE_INFO(workbench_volume_no_coba)
				.sampler(4, ImageType::FLOAT_3D, "shadowTexture")
				.sampler(5, ImageType::UINT_2D, "transferTexture")
				.push_constant(18, Type::VEC3, "activeColor");

				/** \} */

				/* -------------------------------------------------------------------- */
				/** \name Sampling variation
				* \{ */

				GPU_SHADER_CREATE_INFO(workbench_volume_linear).define("USE_TRILINEAR");
				GPU_SHADER_CREATE_INFO(workbench_volume_cubic).define("USE_TRICUBIC");
				GPU_SHADER_CREATE_INFO(workbench_volume_closest).define("USE_CLOSEST");

				/** \} */

				/* -------------------------------------------------------------------- */
				/** \name Slice variation
				* \{ */

				GPU_SHADER_INTERFACE_INFO(workbench_volume_iface, "").smooth(Type::VEC3, "localPos");

				GPU_SHADER_CREATE_INFO(workbench_volume_slice)
				.define("VOLUME_SLICE")
				.vertex_in(1, Type::VEC3, "uvs")
				.vertex_out(workbench_volume_iface)
				.push_constant(32, Type::INT, "sliceAxis") /* -1 is no slice. */
				.push_constant(33, Type::FLOAT, "slicePosition");

				/** \} */

				/* -------------------------------------------------------------------- */
				/** \name Variations Declaration
				* \{ */

				#define WORKBENCH_VOLUME_SLICE_VARIATIONS(prefix, ...) \
				GPU_SHADER_CREATE_INFO(prefix##_slice) \
				.additional_info("workbench_volume_slice", __VA_ARGS__) \
				.do_static_compilation(true); \
				GPU_SHADER_CREATE_INFO(prefix##_no_slice) \
				.additional_info(__VA_ARGS__) \
				.do_static_compilation(true);

				#define WORKBENCH_VOLUME_COBA_VARIATIONS(prefix, ...) \
				WORKBENCH_VOLUME_SLICE_VARIATIONS(prefix##_coba, "workbench_volume_coba", __VA_ARGS__) \
				WORKBENCH_VOLUME_SLICE_VARIATIONS(prefix##_no_coba, "workbench_volume_no_coba", __VA_ARGS__)

				#define WORKBENCH_VOLUME_INTERP_VARIATIONS(prefix, ...) \
				WORKBENCH_VOLUME_COBA_VARIATIONS(prefix##_linear, "workbench_volume_linear", __VA_ARGS__) \
				WORKBENCH_VOLUME_COBA_VARIATIONS(prefix##_cubic, "workbench_volume_cubic", __VA_ARGS__) \
				WORKBENCH_VOLUME_COBA_VARIATIONS(prefix##_closest, "workbench_volume_closest", __VA_ARGS__)

				#define WORKBENCH_VOLUME_SMOKE_VARIATIONS(prefix, ...) \
				WORKBENCH_VOLUME_INTERP_VARIATIONS(prefix##_smoke, "workbench_volume_smoke", __VA_ARGS__) \
				WORKBENCH_VOLUME_INTERP_VARIATIONS(prefix##_object, "workbench_volume_object", __VA_ARGS__)

				WORKBENCH_VOLUME_SMOKE_VARIATIONS(workbench_volume, "workbench_volume")

				/** \} */