129 lines
13 KiB
Plaintext
129 lines
13 KiB
Plaintext
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# °
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SPV_KHR_non_semantic_info NonSemantic.Shader.DebugInfo.100 GLSL.std.450 main Å /home/martin/projects/loft/examples/viewer/shaders/Particles.comp uint float attraction î" // OpModuleProcessed client vulkan100
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// OpModuleProcessed target-env vulkan1.0
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// OpModuleProcessed entry-point main
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#line 1
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#version 450
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struct Particle {
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vec4 position;
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vec4 velocity;
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vec4 gradient_pos;
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};
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layout(std140, binding = 0) buffer ParticleBuffer {
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Particle particles[];
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};
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layout (local_size_x = 256) in;
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vec2 attraction(vec2 pos, vec2 attractPos)
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{
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vec2 delta = attractPos - pos;
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const float damp = 0.5;
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float dDampedDot = dot(delta, delta) + damp;
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float invDist = 1.0f / sqrt(dDampedDot);
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float invDistCubed = invDist*invDist*invDist;
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return delta * invDistCubed * 0.0035;
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}
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vec2 repulsion(vec2 pos, vec2 attractPos)
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{
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vec2 delta = attractPos - pos;
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float targetDistance = sqrt(dot(delta, delta));
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return delta * (1.0 / (targetDistance * targetDistance * targetDistance)) * -0.000035;
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}
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void main()
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{
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uint particle_count = 1000;
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float dest_x = 0.0f;
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float dest_y = 0.0f;
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float delta_time = 0.001;
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// Current SSBO index
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uint index = gl_GlobalInvocationID.x;
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// Don't try to write beyond particle count
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if (index >= particle_count)
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return;
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// Read position and velocity
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vec2 vVel = particles[index].velocity.xy;
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vec2 vPos = particles[index].position.xy;
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vec2 destPos = vec2(dest_x, dest_y);
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vec2 delta = destPos - vPos;
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float targetDistance = sqrt(dot(delta, delta));
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vVel += repulsion(vPos, destPos.xy) * 0.05;
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// Move by velocity
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vPos += vVel * delta_time;
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// collide with boundary
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if ((vPos.x < -1.0) || (vPos.x > 1.0) || (vPos.y < -1.0) || (vPos.y > 1.0))
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vVel = (-vVel * 0.1) + attraction(vPos, destPos) * 12;
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else
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particles[index].position.xy = vPos;
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// Write back
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particles[index].velocity.xy = vVel;
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particles[index].gradient_pos.x += 0.02 * delta_time;
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if (particles[index].gradient_pos.x > 1.0)
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particles[index].gradient_pos.x -= 1.0;
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particles[index].position = vec4(0.0, index, index, 1.0f);
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}
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( pos . attractPos 4 repulsion = main C delta N dDampedDot Y invDist c invDistCubed ƒ targetDistance ¢ particle_count © dest_x ° dest_y ¶ delta_time ½ index Ç gl_GlobalInvocationID Ò bool Ý vVel æ gradient_pos ê Particle ï particles ó ParticleBuffer ø ú int vPos destPos main attraction(vf2;vf2; pos attractPos 2 repulsion(vf2;vf2; 0 pos 1 attractPos A delta L dDampedDot W invDist a invDistCubed y delta � targetDistance particle_count § dest_x ® dest_y ´ delta_time » index Å gl_GlobalInvocationID Û vVel ä Particle ä position ä velocity ä gradient_pos í ParticleBuffer í particles ö vPos destPos delta targetDistance ( param , param j param l param G Å H ä # H ä # H ä # G ë 0 G í H í # G ö ! G ö " G ¯ ! +
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+ +
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+
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+ + !
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! # " + # + % + & $ % & ! ! # $
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#
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' ( ! # & % *
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- . ! # & + 6 5 4 ! 6 $ 4
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6
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7 ( ! 6 5 & %
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; . ! 6 5 & + ? " > = ! ? $ =
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? + D B C ! D & J K + O M N ! O & + U ?+ Z X Y ! Z & + ] €?+ d b c ! d & + n + q B`e;+ w + { z C ! { 5 & + „ ‚ ƒ ! „ 5 & + � + • ÷̸ ž Ÿ + £ $ ¡ ¢ ! £ > & + ¦ è + ª % ¨ © ! ª > & + + ± & ¯ ° ! ± > & + · ' µ ¶ ! · > & + º oƒ:+ ¾ ) ¼ ½ ! ¾ > & Á Â
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à Á Ä Â % ; à Š+ È Æ Ç Â ! ¾ $ Ç Å È É Ê % + Ï + Ñ Ó Ò
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+ Ù , + Þ / Ü Ý ! Þ > & â ã & ä â â â
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å æ ã !
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ç æ ã !
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è æ ã !
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é
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ê % ! Þ $ ê
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å ç è ë ä ì é í ë + ð
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+ ñ
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î ï ì ! ð ñ
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ò
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ó % ! Þ $ ó
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î ô í õ ò ; ô ö ÷ ø ò ! Þ $ ø ö È ù û ú
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& + ù ü + ù þ ÿ â ã + 0 ! > & + 2 ! > & + 4 C ! > & + ! 5 ƒ ! ! > & + + 6 + / ÍÌL=+ 5 9 + < < + > €¿+ f = + h ÍÌÌ=+ o @A+ v ? x y + � B + ‰ C + ù Š + ‹
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×£<+ ” D + � E + ¥ F + H + ® , Á ¯ ® % % 6 ø ; ž ; J § ; J ® ; J ´ ; ž » ; Û ; ; ; ; J ; ( ; , ; j ; l œ >
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� g ! ? ? › e >
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¥ g ! £ £ ¤ ¡ * > ¦
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¬ g ! ª ª « ¨ § * > §
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³ g ! ± ± ² ¯ ® * > ®
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¹ g ! · · ¸ µ ´ * > ´ º
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À g ! ¾ ¾ ¿ ¼ » * A É Ë Å = Ì Ë > » Ì
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Î g ! Ï Ï = Í » = Ð ® Ñ Ô Í Ð ÷ Ö ú Ô Õ Ö ø Õ × >
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Ø g ! Ù Ù ý ø Ö à >
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á g ! Þ Þ ß Ü Û * = ý » A ÿ ö ü ý þ = â O > Û
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g ! * =
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» A ÿ ö ü
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ü = â O
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>
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g ! * = § = ® P >
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g ! * = = ƒ >
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# g ! ! ! " * = $ = % ” & $ % ' & > '
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* g ! + + = ) > ( ) = - > , - 9 . 2 ( , Ž 0 . / = 1 Û � 2 1 0 > Û 2
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4 g ! 5 5 = 3 Û = 6 ´ Ž 7 3 6 = 8 � 9 8 7 > 9
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; g ! < < A J : = = : ¸ Ñ ? = > ¨ Ñ @ ? ÷ B ú @ A B ø A D >
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