Clément Foucault
4847bcdbe1
This also removes the need to compute the persmat and saves some memory from the `ViewInfos` struct. This is needed to allow multiview support. Initial testing found no major performance regression during vertex heavy workload. Differential Revision: https://developer.blender.org/D16125
60 lines
1.8 KiB
GLSL
60 lines
1.8 KiB
GLSL
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#pragma BLENDER_REQUIRE(common_view_lib.glsl)
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#pragma BLENDER_REQUIRE(common_hair_lib.glsl)
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uniform mat4 currModelMatrix;
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uniform mat4 prevModelMatrix;
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uniform mat4 nextModelMatrix;
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uniform bool useDeform;
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#ifdef HAIR
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uniform samplerBuffer prvBuffer; /* RGBA32F */
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uniform samplerBuffer nxtBuffer; /* RGBA32F */
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#else
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in vec3 pos;
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in vec3 prv; /* Previous frame position. */
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in vec3 nxt; /* Next frame position. */
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#endif
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out vec3 currWorldPos;
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out vec3 prevWorldPos;
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out vec3 nextWorldPos;
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void main()
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{
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GPU_INTEL_VERTEX_SHADER_WORKAROUND
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#ifdef HAIR
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bool is_persp = (ProjectionMatrix[3][3] == 0.0);
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float time, thick_time, thickness;
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vec3 tan, binor;
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vec3 wpos;
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hair_get_pos_tan_binor_time(is_persp,
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ModelMatrixInverse,
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ViewMatrixInverse[3].xyz,
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ViewMatrixInverse[2].xyz,
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wpos,
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tan,
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binor,
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time,
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thickness,
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thick_time);
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int id = hair_get_base_id();
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vec3 pos = texelFetch(hairPointBuffer, id).point_position;
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vec3 prv = texelFetch(prvBuffer, id).point_position;
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vec3 nxt = texelFetch(nxtBuffer, id).point_position;
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#endif
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prevWorldPos = (prevModelMatrix * vec4(useDeform ? prv : pos, 1.0)).xyz;
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currWorldPos = (currModelMatrix * vec4(pos, 1.0)).xyz;
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nextWorldPos = (nextModelMatrix * vec4(useDeform ? nxt : pos, 1.0)).xyz;
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/* Use jittered projmatrix to be able to match exact sample depth (depth equal test).
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* Note that currModelMatrix needs to also be equal to ModelMatrix for the samples to match. */
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#ifndef HAIR
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gl_Position = ProjectionMatrix * (ViewMatrix * vec4(currWorldPos, 1.0));
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#else
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gl_Position = ProjectionMatrix * (ViewMatrix * vec4(wpos, 1.0));
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#endif
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}
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