Compute Shader can work on Mac with Metal , but doesn`t work on Windows with DX11, Why

[zhengyi7592]

I write a simple demo with CS shader to simlutae hair effect. The demo gets the right result on Mac with Metal, but it doesn't get the right result on Windows, I don't know why...

I think there may has sth wrong at BUFFER_RW (cross platform)...

BTW, I check out the latest master branch.

Thank you!

Part of CS codes:

#include "header.sh"

#include "cs_Node.sh"
#include "cs_DistanceJoint.sh"

BUFFER_RW(_Positions, Node, 0);
BUFFER_RO(_DistanceJoints, DistanceJoint, 1);

uniform vec4 _DT;
uniform vec4 _GroupOffset;

vec3 DistanceJointSolveImpl(vec3 position1, vec3 position2, float distance)
{
vec3 relPosition = position1 - position2;
float actualDistance = length(relPosition);
float penetration = (distance - actualDistance) / actualDistance;
return relPositionpenetration0.5;
}

NUM_THREADS(1024, 1, 1)
void main()
{
ivec2 id = ivec2(gl_GlobalInvocationID.xy);
uint idx = _GroupOffset.x + id.x;
if (idx < _GroupOffset.x + _GroupOffset.y) {
vec3 joint = _DistanceJoints[idx].joint;
vec4 position1 = _Positions[(uint)joint.x].curr;
vec4 position2 = _Positions[(uint)joint.y].curr;
vec3 correction = DistanceJointSolveImpl(position1.xyz, position2.xyz, joint.z)*_DT.x;
position1 += vec4(correction, 0.0);
position2 -= vec4(correction, 0.0);
_Positions[(uint)joint.x].curr = position1;
_Positions[(uint)joint.y].curr = position2;
}
}

[pezcode]

Related issue: #1785

[zhengyi7592]

Thank you. Issue #1785 has been solved with the new bgfx code. With the latest code, my problem still exists...