Differential D16125 Diff 56366 source/blender/draw/intern/shaders/common_view_lib.glsl

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source/blender/draw/intern/shaders/common_view_lib.glsl


	/* WORKAROUND: to guard against double include in EEVEE. */			/* WORKAROUND: to guard against double include in EEVEE. */
	#ifndef COMMON_VIEW_LIB_GLSL			#ifndef COMMON_VIEW_LIB_GLSL
	#define COMMON_VIEW_LIB_GLSL			#define COMMON_VIEW_LIB_GLSL

	/* Temporary until we fully make the switch. */			/* Temporary until we fully make the switch. */
	#if !defined(USE_GPU_SHADER_CREATE_INFO)			#if !defined(USE_GPU_SHADER_CREATE_INFO)

	# define DRW_RESOURCE_CHUNK_LEN 512			# define DRW_RESOURCE_CHUNK_LEN 512

	/* keep in sync with DRWManager.view_data */			/* keep in sync with DRWManager.view_data */
	layout(std140) uniform viewBlock			layout(std140) uniform viewBlock
	{			{
	/* Same order as DRWViewportMatrixType */
	mat4 ViewProjectionMatrix;
	mat4 ViewProjectionMatrixInverse;
	mat4 ViewMatrix;			mat4 ViewMatrix;
	mat4 ViewMatrixInverse;			mat4 ViewMatrixInverse;
	mat4 ProjectionMatrix;			mat4 ProjectionMatrix;
	mat4 ProjectionMatrixInverse;			mat4 ProjectionMatrixInverse;

	vec4 clipPlanes[6];			vec4 clipPlanes[6];

	/* View frustum corners [NDC(-1.0, -1.0, -1.0) & NDC(1.0, 1.0, 1.0)].			/* View frustum corners [NDC(-1.0, -1.0, -1.0) & NDC(1.0, 1.0, 1.0)].
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	# define world_clip_planes_calc_clip_distance(p) \			# define world_clip_planes_calc_clip_distance(p) \
	_world_clip_planes_calc_clip_distance(p, clipPlanes)			_world_clip_planes_calc_clip_distance(p, clipPlanes)
	#endif			#endif

	#ifdef COMMON_GLOBALS_LIB			#ifdef COMMON_GLOBALS_LIB
	/* TODO move to overlay engine. */			/* TODO move to overlay engine. */
	float mul_project_m4_v3_zfac(in vec3 co)			float mul_project_m4_v3_zfac(in vec3 co)
	{			{
	return pixelFac * ((ViewProjectionMatrix[0][3] * co.x) + (ViewProjectionMatrix[1][3] * co.y) +			vec3 vP = (ViewMatrix * vec4(co, 1.0)).xyz;
	(ViewProjectionMatrix[2][3] * co.z) + ViewProjectionMatrix[3][3]);			return pixelFac * ((ProjectionMatrix[0][3] * vP.x) + (ProjectionMatrix[1][3] * vP.y) +
				(ProjectionMatrix[2][3] * vP.z) + ProjectionMatrix[3][3]);
	}			}
	#endif			#endif

	/* Not the right place but need to be common to all overlay's.			/* Not the right place but need to be common to all overlay's.
	* TODO: Split to an overlay lib. */			* TODO: Split to an overlay lib. */
	mat4 extract_matrix_packed_data(mat4 mat, out vec4 dataA, out vec4 dataB)			mat4 extract_matrix_packed_data(mat4 mat, out vec4 dataA, out vec4 dataB)
	{			{
	const float div = 1.0 / 255.0;			const float div = 1.0 / 255.0;
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	#define NormalMatrixInverse transpose(mat3(ModelMatrix))			#define NormalMatrixInverse transpose(mat3(ModelMatrix))

	#define normal_object_to_view(n) (mat3(ViewMatrix) * (NormalMatrix * n))			#define normal_object_to_view(n) (mat3(ViewMatrix) * (NormalMatrix * n))
	#define normal_object_to_world(n) (NormalMatrix * n)			#define normal_object_to_world(n) (NormalMatrix * n)
	#define normal_world_to_object(n) (NormalMatrixInverse * n)			#define normal_world_to_object(n) (NormalMatrixInverse * n)
	#define normal_world_to_view(n) (mat3(ViewMatrix) * n)			#define normal_world_to_view(n) (mat3(ViewMatrix) * n)
	#define normal_view_to_world(n) (mat3(ViewMatrixInverse) * n)			#define normal_view_to_world(n) (mat3(ViewMatrixInverse) * n)

	#define point_object_to_ndc(p) (ViewProjectionMatrix * vec4((ModelMatrix * vec4(p, 1.0)).xyz, 1.0))			#define point_object_to_ndc(p) \
				(ProjectionMatrix * (ViewMatrix * vec4((ModelMatrix * vec4(p, 1.0)).xyz, 1.0)))
	#define point_object_to_view(p) ((ViewMatrix * vec4((ModelMatrix * vec4(p, 1.0)).xyz, 1.0)).xyz)			#define point_object_to_view(p) ((ViewMatrix * vec4((ModelMatrix * vec4(p, 1.0)).xyz, 1.0)).xyz)
	#define point_object_to_world(p) ((ModelMatrix * vec4(p, 1.0)).xyz)			#define point_object_to_world(p) ((ModelMatrix * vec4(p, 1.0)).xyz)
	#define point_view_to_ndc(p) (ProjectionMatrix * vec4(p, 1.0))			#define point_view_to_ndc(p) (ProjectionMatrix * vec4(p, 1.0))
	#define point_view_to_object(p) ((ModelMatrixInverse * (ViewMatrixInverse * vec4(p, 1.0))).xyz)			#define point_view_to_object(p) ((ModelMatrixInverse * (ViewMatrixInverse * vec4(p, 1.0))).xyz)
	#define point_view_to_world(p) ((ViewMatrixInverse * vec4(p, 1.0)).xyz)			#define point_view_to_world(p) ((ViewMatrixInverse * vec4(p, 1.0)).xyz)
	#define point_world_to_ndc(p) (ViewProjectionMatrix * vec4(p, 1.0))			#define point_world_to_ndc(p) (ProjectionMatrix * (ViewMatrix * vec4(p, 1.0)))
	#define point_world_to_object(p) ((ModelMatrixInverse * vec4(p, 1.0)).xyz)			#define point_world_to_object(p) ((ModelMatrixInverse * vec4(p, 1.0)).xyz)
	#define point_world_to_view(p) ((ViewMatrix * vec4(p, 1.0)).xyz)			#define point_world_to_view(p) ((ViewMatrix * vec4(p, 1.0)).xyz)

	/* Due to some shader compiler bug, we somewhat need to access gl_VertexID			/* Due to some shader compiler bug, we somewhat need to access gl_VertexID
	* to make vertex shaders work. even if it's actually dead code. */			* to make vertex shaders work. even if it's actually dead code. */
	#if defined(GPU_INTEL) && defined(GPU_OPENGL)			#if defined(GPU_INTEL) && defined(GPU_OPENGL)
	# define GPU_INTEL_VERTEX_SHADER_WORKAROUND gl_Position.x = float(gl_VertexID);			# define GPU_INTEL_VERTEX_SHADER_WORKAROUND gl_Position.x = float(gl_VertexID);
	#else			#else
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