Joseph Eagar
035a3760af
This patch adds support for alpha hash for hair rendering in EEvee. Here's a comparison of with alpha hashing:
{F7588610}
And no alpha hashing:
{F7588615}
Note that this needs "soft shadows" enabled, otherwise shadows will be noisy; here's a render with soft shadows disabled:
{F7588621}
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D5221
64 lines
1.5 KiB
GLSL
64 lines
1.5 KiB
GLSL
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in vec3 pos;
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in vec3 nor;
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#ifdef MESH_SHADER
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out vec3 worldPosition;
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out vec3 viewPosition;
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out vec3 worldNormal;
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out vec3 viewNormal;
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#endif
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#ifdef HAIR_SHADER
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out vec3 hairTangent;
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out float hairThickTime;
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out float hairThickness;
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out float hairTime;
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flat out int hairStrandID;
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#endif
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void main()
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{
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#ifdef GPU_INTEL
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/* Due to some shader compiler bug, we somewhat
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* need to access gl_VertexID to make it work. even
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* if it's actually dead code. */
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gl_Position.x = float(gl_VertexID);
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#endif
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#ifdef HAIR_SHADER
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hairStrandID = hair_get_strand_id();
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vec3 world_pos, binor;
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hair_get_pos_tan_binor_time((ProjectionMatrix[3][3] == 0.0),
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ModelMatrixInverse,
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ViewMatrixInverse[3].xyz,
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ViewMatrixInverse[2].xyz,
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world_pos,
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hairTangent,
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binor,
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hairTime,
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hairThickness,
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hairThickTime);
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worldNormal = cross(hairTangent, binor);
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#else
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vec3 world_pos = point_object_to_world(pos);
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#endif
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gl_Position = point_world_to_ndc(world_pos);
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#ifdef MESH_SHADER
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worldPosition = world_pos;
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viewPosition = point_world_to_view(worldPosition);
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# ifndef HAIR_SHADER
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worldNormal = normalize(normal_object_to_world(nor));
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# endif
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/* No need to normalize since this is just a rotation. */
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viewNormal = normal_world_to_view(worldNormal);
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# ifdef USE_ATTR
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pass_attr(pos);
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# endif
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#endif
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}
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