scorpion21211-cmd
46 lines
1.6 KiB
GDScript
46 lines
1.6 KiB
GDScript
@tool
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extends ShaderSpace
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class_name ViewmodelSpace
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## This node will configure all meshes childed inside of it (recursively) to act without clipping through wall, useful for wieldable viewmodels to keep them in-front
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##
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## Useful for viewmodels for wieldables. Can toggle the clipping behavior by setting `disable_viewmodel_clipping`
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var _viewmodel_clipping_disabled : bool = true
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## When this is checked, it will make it so any childed viewmodel will always be rendered in front of everything else
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@export var disable_viewmodel_clipping : bool = true:
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get:
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return _viewmodel_clipping_disabled
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set(value):
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_viewmodel_clipping_disabled = value
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set_instance_shader_parameter("viewmodel_enabled", value)
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func _init():
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injected_vars = '''
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global uniform float viewmodel_fov = 75.0f;
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instance uniform bool viewmodel_enabled = true;'''
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injected_vertex = '''
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UV = UV * uv1_scale.xy + uv1_offset.xy;
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/* begin shader magic*/
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float onetanfov = 1.0f / tan(0.5f * (viewmodel_fov * PI / 180.0f));
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float aspect = VIEWPORT_SIZE.x / VIEWPORT_SIZE.y;
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// modify projection matrix to match FOV
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PROJECTION_MATRIX[1][1] = -onetanfov;
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PROJECTION_MATRIX[0][0] = onetanfov / aspect;
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// this next part draws the viewmodel over everything (disable if you want dof near on viewmodel)
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POSITION = PROJECTION_MATRIX * MODELVIEW_MATRIX * vec4(VERTEX.xyz, 1.0);
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if(viewmodel_enabled){
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POSITION.z = mix(POSITION.z, 0, -2.999);
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}
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/* end shader magic */
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'''
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func convert_surfaces():
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super()
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if not _viewmodel_clipping_disabled:
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set_instance_shader_parameter("viewmodel_enabled",_viewmodel_clipping_disabled)
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