| commit | author | age | ||
| 9dafdb | 1 | <jittershader name="Connect_Close_Vertices"> |
| MS | 2 | <description>Default Connect Close Vertices </description> |
| 3 | ||
| 4 | <param name="position" type="vec3" state="POSITION" /> | |
| 5 | <param name="modelViewProjectionMatrix" type="mat4" state="MODELVIEW_PROJECTION_MATRIX" /> | |
| 6 | <param name="color" type="vec4" state="COLOR" /> | |
| 7 | ||
| 8 | <param name="posBuffer" type="int" default="0" /> | |
| 9 | <param name="distThreshold" type="float" default="0.1" /> | |
| 10 | ||
| 11 | <language name="glsl" version="1.5"> | |
| 12 | ||
| 13 | <bind param="position" program="vp" /> | |
| 14 | <bind param="modelViewProjectionMatrix" program="vp" /> | |
| 15 | <bind param="color" program="vp" /> | |
| 16 | ||
| 17 | <bind param="posBuffer" program="vp" /> | |
| 18 | <bind param="distThreshold" program="vp" /> | |
| 19 | ||
| 20 | <program name="vp" type="vertex"> | |
| 21 | <![CDATA[ | |
| 22 | #version 330 core | |
| 23 | uniform mat4 modelViewProjectionMatrix; | |
| 24 | in vec3 position; | |
| 25 | in vec4 color; | |
| 26 | ||
| 27 | uniform samplerBuffer posBuffer; | |
| 28 | uniform float distThreshold; | |
| 29 | ||
| 30 | const int arrayLength = 6; | |
| 31 | ||
| 32 | out jit_PerVertex { | |
| 33 | flat vec4 color; | |
| 34 | flat vec4 closeParticlePosition[arrayLength]; | |
| 35 | } jit_out; | |
| 36 | ||
| 37 | void main() { | |
| 38 | int iterations = 1000; | |
| 39 | ||
| 40 | gl_Position = modelViewProjectionMatrix * vec4(position, 1.); | |
| 41 | jit_out.color = color; | |
| 42 | ||
| 43 | // initialize close particles position to this particle position | |
| 44 | for (int i=0; i<arrayLength; i++) | |
| 45 | { | |
| 46 | jit_out.closeParticlePosition[i] = modelViewProjectionMatrix * vec4(position, 1.); | |
| 47 | } | |
| 48 | ||
| 49 | int counter = 0; | |
| 50 | for (int i=gl_VertexID+1; i<iterations; i++) | |
| 51 | { | |
| 52 | vec3 otherPosition = texelFetch(posBuffer, i).xyz; | |
| 53 | ||
| 54 | float dist = length(position - otherPosition); | |
| 55 | ||
| 56 | if (dist < distThreshold && dist > 0.0) | |
| 57 | { | |
| 58 | jit_out.closeParticlePosition[counter] = modelViewProjectionMatrix * vec4(otherPosition, 1.); | |
| 59 | counter++; | |
| 60 | if (counter >= arrayLength) | |
| 61 | { | |
| 62 | break; | |
| 63 | } | |
| 64 | } | |
| 65 | } | |
| 66 | } | |
| 67 | ]]> | |
| 68 | </program> | |
| 69 | <program name="gp" type="geometry"> | |
| 70 | <![CDATA[ | |
| 71 | #version 330 core | |
| 72 | ||
| 73 | layout (points) in; | |
| 74 | layout (line_strip, max_vertices=12) out; | |
| 75 | ||
| 76 | const int arrayLength = 6; | |
| 77 | ||
| 78 | in jit_PerVertex { | |
| 79 | flat vec4 color; | |
| 80 | flat vec4 closeParticlePosition[arrayLength]; | |
| 81 | } jit_in[]; | |
| 82 | ||
| 83 | out jit_PerVertex { | |
| 84 | flat vec4 color; | |
| 85 | }; | |
| 86 | ||
| 87 | void main() { | |
| 88 | for (int i = 0; i<arrayLength; i++) | |
| 89 | { | |
| 90 | gl_Position = gl_in[0].gl_Position; | |
| 91 | color = jit_in[0].color; | |
| 92 | EmitVertex(); | |
| 93 | ||
| 94 | gl_Position = jit_in[0].closeParticlePosition[i]; | |
| 95 | color = jit_in[0].color; | |
| 96 | EmitVertex(); | |
| 97 | ||
| 98 | EndPrimitive(); | |
| 99 | } | |
| 100 | } | |
| 101 | ]]> | |
| 102 | </program> | |
| 103 | <program name="fp" type="fragment"> | |
| 104 | <![CDATA[ | |
| 105 | #version 330 core | |
| 106 | ||
| 107 | in jit_PerVertex { | |
| 108 | flat vec4 color; | |
| 109 | } jit_in; | |
| 110 | ||
| 111 | out vec4 color; | |
| 112 | ||
| 113 | void main() { | |
| 114 | color = jit_in.color; | |
| 115 | ||
| 116 | // if (length(gl_PointCoord-0.5)>0.5) | |
| 117 | // discard; | |
| 118 | } | |
| 119 | ]]> | |
| 120 | </program> | |
| 121 | </language> | |
| 122 | </jittershader> | |
