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Updated audio node to use half-float image format

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This commit is contained in:
RodZill4 2020-03-28 10:04:53 +01:00
parent 6a02245cd6
commit ec6b197080
2 changed files with 8 additions and 4 deletions
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10
material_maker/nodes/audio.gd
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@ -28,7 +28,8 @@ func update_shader():
code += "uniform float start_time = 0.0;\n"
code += "const float buffer_size = 64.0;\n"
code += "float s2ttime(vec2 uv) {\nreturn start_time+(floor(uv.x*buffer_size)+buffer_size*floor(uv.y*buffer_size))/44100.0;\n}\n"
code += "vec4 au2tex(vec2 s) {\nvec2 v = floor((0.5+0.5*s)*65536.0);\nvec2 vl = mod(v, 256.0)/255.0;\nvec2 vh = floor(v/256.0)/255.0;\nreturn vec4(vh.x, vl.x, vh.y, vl.y);\n}\n"
#code += "vec4 au2tex(vec2 s) {\nvec2 v = floor((0.5+0.5*s)*65536.0);\nvec2 vl = mod(v, 256.0)/255.0;\nvec2 vh = floor(v/256.0)/255.0;\nreturn vec4(vh.x, vl.x, vh.y, vl.y);\n}\n"
code += "vec4 au2tex(vec2 s) {\nreturn vec4(s.x, s.y, 0.0, 0.0);\n}\n"
for g in result.globals:
code += g
code += "void fragment() {\n"
@ -56,11 +57,14 @@ func _process(delta):
var image = $ViewportContainer/Viewport.get_texture().get_data()
var to_fill = min(playback.get_frames_available(), image.data.width*image.data.height)
var i : int = 0
image.lock()
for j in range(to_fill):
var left = (image.data.data[i]+image.data.data[i+1]/256.0)/128.0-1.0
var right = (image.data.data[i+2]+image.data.data[i+3]/256.0)/128.0-1.0
var p = image.get_pixel(j%image.data.width, j/image.data.width)
var left = p.r
var right = p.g
playback.push_frame(Vector2(left, right))
i += 4
samples_played += to_fill
image.unlock()
$ViewportContainer/Viewport/ColorRect.material.set_shader_param("start_time", samples_played/44100.0)

2
material_maker/nodes/audio.tscn
View File

@ -57,7 +57,7 @@ mouse_filter = 2
size = Vector2( 64, 64 )
transparent_bg = true
handle_input_locally = false
usage = 0
keep_3d_linear = true
render_target_v_flip = true
render_target_update_mode = 3